Latest technologies from Virginia Tech Intellectual Properties, Inc.http://vtip.technologypublisher.comBe the first to know about the latest inventions and technologies available from Virginia Tech Intellectual Properties, Inc.en-USThu, 23 Feb 2017 01:18:36 GMTMon, 20 Feb 2017 06:05:02 GMT 2017, Virginia Tech Intellectual Properties, Inc.Gel for Ion Conduction Applications with Mechanical Strength key components of many energy storage and conversion technologies, polymer electrolyte materials allow for selective ion transport in diverse applications such as fuel cell membranes, battery separators, electro-responsive actuators, reverse-osmosis water purifiers, and solar cells. For electrochemical devices, solid-state polymer electrolyte materials deliver safer operation without the leakage, volatility, or flammability issues usually associated with liquid-based electrolytes. However, many practical applications such as lithium-ion batteries are usually restricted to the use of volatil...Mon, 20 Feb 2017 06:05:02 GMTvtippatents@vtip.org Buzzy Baby One-Parent Wake Baby Monitor System, 20 Feb 2017 05:52:06 GMTvtippatents@vtip.org Method for Multi-Material Additive Manufacturing and Its Use on Producing Multimaterials with Complex Architectures invention discloses an advanced, additional system and a method to provide multi-feed material for free-form fabrication of 3D objects build by a stereolithography-based (SL) 3D printer. Especially, this system and method can facilitate low-volume printing and high-speed resin change in a SL 3D printer. The final printed multi-material object can be used in the fields of tissue engineering, metamaterials with unique mechanical properties or tailored deformation, and multifunctional materials with monolithic fabrication of structures with integrated functionality. Fri, 10 Feb 2017 07:25:20 GMTvtippatents@vtip.org Transformer and the Winding Structure novel matrix transformer structure along with its winding structure are proposed. 4 transformers are integrated in 1 core and flux cancellation is employed to reduce the flux density in the top and bottom plates of the magnetic core. The primary windings are arranged to fully utilize the copper in the PCB. SR and output are part of the secondary winding to minimize leakage and termination loss. Simple 4-layer PCB can be used for fabrication of the proposed transformer. And more layers of PCB can also be used to reduce loss. Further improvement of the magnetic structure of the proposed matrix...Wed, 08 Feb 2017 12:02:53 GMTvtippatents@vtip.org Paradigm for Wave-Based Sensing, 06 Feb 2017 07:47:00 GMTvtippatents@vtip.org Unbalanced Method to Reduce Transient Current Unbalance in Semiconductor Power Switches power devices, specifically SiC MOSFET, has wider parameter variations (Vth, Rds(on)) due to fabrication process; therefore, when putting several MOSFET dies togther in parallel in a power module, there will be current/power unbalance when they are being used. Several publications have mentioned about using different control techniques to actively reduce the unbalance. However, these controls are usually quite complicated and not so practical in reality. This ID presents an alternative method to passibely reduce the unbalance by designing asymmetrical layout with unipolar coupling. T...Mon, 06 Feb 2017 07:37:30 GMTvtippatents@vtip.org Photo-Active Cages for Drug Delivery, 06 Feb 2017 07:22:47 GMTvtippatents@vtip.org Intravenous Solution as Adjuvant Pharmacotherapy developed an electrolytic range for an enhanced resuscitation fluid that enhances cardiac dynamics during administration of compounds known to have deliterious cardiac side-effects. The electrolytic composition of these solutions fall within the normal physiologic range of human plasma, and are therefore biocompatible with humans according to our current understanding of resuscitation fluid science. There are two non-obvious inventions. First, the electrolyte range described here is based on mechanisms for improving a new and theoretical form of cell-to-cell communication called ephaptic co...Mon, 06 Feb 2017 07:22:13 GMTvtippatents@vtip.org Device for Simulating Head to Head Impacts in Sports device simulates real-world head to head impact events in a controlled and repeatable manner. The device can be used to evaluate and design protective headgear used in sports, as well as investigate traumatic head injury events. Impact velocity of the striking head is variable, and its impact orientation is adjustable. The struck headform's orientation is adjustable and can be positioned so any point on the head can be impacted.Mon, 06 Feb 2017 07:21:25 GMTvtippatents@vtip.org Corrugated Layering for FDM 3D Printing new method for making stronger FDM 3d prints. Most Fuse Deposition Modeling FDM 3d printers like Makerbots are strong in 2 axes but not the third. Frequently the third axes upon which layers are built up are subject to shearing. Corrugating this layer resists shear and can make a 3d printed part stronger.Mon, 06 Feb 2017 07:20:10 GMTvtippatents@vtip.org of Reducing Thermal Damage During Electroporation-Based Treatments and Therapies Using Minimal Energy Electrical Pulses is a process by which intense electric fields generate nano-scale defects within the cell membrane. These defects allow molecular exchange between the cell interior and the extracellular environment. We have developed a method by which a minimal amount of energy may be delivered to a cell suspension that will render the cells permeable while mitigating much of the thermal damage typically associated with such procedures. Using single square pulses at specific electric potentials and durations, cells are exposed to electric fields sufficient to generate long-lived pores within t...Mon, 06 Feb 2017 07:19:35 GMTvtippatents@vtip.org and System for Identifying Product Pros and Cons From User Generated Contents Using a Multiple-Facet LDA Model invention introduces a text mining method and a corresponding system which can extract key defects/advantages of products from user reviews using an adapted LDA model. This technology can help product manufacturers, customers, and regulators.Mon, 06 Feb 2017 07:19:05 GMTvtippatents@vtip.org of Scatter Correction in Multi-source Computed Tomography invention includes three x-ray scatter correction methods dedicated to the multi-source computed tomography (CT). The first one is stationary beam-stopper-arrays based method, and enables the online correction of both forward and cross scatter signals. The second one is x-ray source trigger sequence based method, and enables cross scatter correction and CT image acquisition with single CT scan. These two methods also further reduced radiation dose to a large extent. The third method is based on a deterministic physical-mathematical model of multi-source CT, which provides the virtually ex...Mon, 06 Feb 2017 07:18:07 GMTvtippatents@vtip.org Design and Manufacture of of Generalized Flow Profile-Producing Devices StreamVane device covered by utility patent application 14795545 (VTIP-2014-137US) is an original device for the generation of desired pressure and swirl profiles in a flow. In recent work, we have found that the addition of a wire screen device to a StreamVane produces an increased degree of flexibility for the generation of desired flow profiles. We have tested a combined wire screen-StreamVane device in a jet engine at Virginia Tech, and confirmed that increased flexibility occurs. Specifically, we wish to patent the combination of a wire screen and a StreamVane for generation of desire...Mon, 06 Feb 2017 07:17:20 GMTvtippatents@vtip.org Coupled and Integrated with PCB winding for PFC Converters this invention, the inductors of multiphase PFC converters are coupled and integrated into one magnetic core. The coupling can improve converter efficiency. With a novel structure, the inductors can be built with PCB winding with similar loss as traditional litz wire inductors. In addition, balance technique is applied to reduce common mode EMI noise. This invention can be used in power supply for laptop, desktop, server, telecom datacenter and battery charger for electric vehicle.Mon, 06 Feb 2017 07:16:39 GMTvtippatents@vtip.org Micro-CT for Imaging Free-Moving Animals current small animal imaging requires some form of anesthetization. The anesthetization not only may interfere with the subject's pathophysiology under study, and also is a costive and skill-demanding process. The current invention will eliminate the need for administration of anesthesia during small animal micro-CT imaging experiments, thus leading to high efficient and cost-effective imaging process. Furthermore, the ultrafast data acquisition speed of the disclosed micro-CT imaging system will allow imaging fast dynamic within the animal subject with high temporal resolution. Additional...Mon, 06 Feb 2017 07:09:32 GMTvtippatents@vtip.org for High Temperature Stereolithography (SLA) has traditionally been limited to low viscosity resins that flow easily at room temperature. These constraints greatly limit the molecular weights and polymeric classes of the oligomeric components that can be used. Many of the strongest and highest glass-transition temperature (Tg) engineering polymers fall into this category of materials that cannot be processed using SLA. Through the use of novel processing techniques (coupled with novel approaches to polymer chemistry), these materials can be fabricated into end-use parts without the need for extensive post-processi...Tue, 31 Jan 2017 13:36:37 GMTvtippatents@vtip.org Carbon Fiber from Block Copolymers fiber is an important low-density material that has outstanding mechanical strength, electric conductivity, fire resistance, high chemical resistance, high operational temperature tolerance, low coefficient of thermal expansion, and excellent electromagnetic interference shielding properties. Porous carbon fibers that span the pore size across micro-, meso-, and macro- length scales are crucial for a wide range of applications including catalysis, sensing, energy conversion and storage, and membrane filtration.Tue, 31 Jan 2017 12:13:07 GMTvtippatents@vtip.org Palladium or Palladium-Alloy Membranes for Hydrogen Separation separation membranes are important for the purification of hydrogen for use in the production of chemicals, the refining of petroleum, and in energy conversion devices such as fuel cells. Among the best membranes are palladium membranes, but these are susceptible to poisoning by sulfur. Sulfur is a common contaminant in feedstocks for hydrogen production such as natural gas, and petroleum products, coal, and some biomass sources. This invention provides materials and methods of preparation of sulfur-tolerant membranes.Fri, 27 Jan 2017 08:45:39 GMTvtippatents@vtip.org Portable Tuned Mass Damper with Simple Tuning/Design for the Reduction of Vibrations in Civil Engineering/Architectural Structures, 19 Jan 2017 12:10:13 GMTvtippatents@vtip.org Text Analysis Toolbox (PamTAT) is a software add-in for Microsoft Excel that provides advanced text analytics functions with Microsoft Excel. In particular, PamTAT supports the generation of significant-word lists. A prominent type of significant-word list is a smoke word list - smoke word are words significantly more prevalent in product or service defects, than in non-defects. PamTAT also allows new text to be score using saved dictionaries, such as saved smoke-word lists. This can, for instance, allow users to determine an approximate likelihood that a new postings discusses a potential defect.Thu, 19 Jan 2017 05:34:41 GMTvtippatents@vtip.org BIM-Interfaced Decision Support Software for Architectural Design Assistance new Decision Support Structure (DSS) for architectural design assistance is a mechanism to share knowledge between design professionals for the purpose of improving decision-making. The approach is a unique implementation of decision-making theory and process mapping adapted to architectural design from more common use in the business and maufacturing domains. The new DSS is a software core for decision processing that easily links to Building Information Modeling (BIM) to extract the inputs for the DSS algorithms. The DSS is based on the World Wide Web making it accessible from anywhere....Fri, 13 Jan 2017 11:29:10 GMTvtippatents@vtip.org Inductances Coupling to Reduce Transient Current Unbalance in Semiconductor Power Switches, 13 Jan 2017 11:28:46 GMTvtippatents@vtip.org Parasitic Inductance Coupling to Eliminate Power Device Switching Operation Reliability Issues Such As Cross-Talk, Self Turn-On, and Self-Sustained Oscillation purpose of this invention is to show the new concept of using parasitic inductance coupling to improve SiC MOSFET switching operation reliability to prevent detrimental phenomenon such as crosstalk, self turn-on, and self-sustained oscillation from happening. Conventional methods either slow down the circuit or increase the design complexity. In addition, parasitic inductances cannot be zero which means there is a limitation in the method of reducing parasitic inductances. This invention provides a new method to improve reliability without sacrificing switching speed or increasing complexi...Fri, 13 Jan 2017 11:27:58 GMTvtippatents@vtip.org Kelvin-Source Resistance to Reduce Dynamic Power/Current Imbalance in Paralleled Semiconductor Power Switches power devices, especially SiC MOSFETs, have wide parameter variations due to fabrication process. When putting several MOSFETs in parallel, there will be current/power unbalance during switching transient. Several publications have mentioned about using different control techniques to actively reduce the unbalance. However, these controls are usually quite complicated and not so practical in reality. Complicated current sensor and gate driver are required for every switch. This ID presents an alternative method to passively reduce the imbalance by carefully designing the kelvin sourc...Fri, 13 Jan 2017 11:27:09 GMTvtippatents@vtip.org from (Ethylene Copolymers with) Inorganic Physical Blowing Agents with Improved Properties invention is directed to foamable compositions and foaming of ethylene-based copolymers containing carbon monoxide as a co-monomer with inorganic physical blowing agents with improved foaming features compared to ethylene copolymers that do not contain carbon monoxide.Wed, 11 Jan 2017 06:27:03 GMTvtippatents@vtip.org Weight Estimator, 11 Jan 2017 05:40:31 GMTvtippatents@vtip.org Uncouplers and Therapeutic Uses Thereof, 11 Jan 2017 05:33:25 GMTvtippatents@vtip.org Roughness Index IP contained herein is a novel roughness index that can be calculated continuously for each data point along a road profile. Specifically, an enhancement to the long-standing International Roughness Index (CRI) is proposed.Mon, 09 Jan 2017 07:04:40 GMTvtippatents@vtip.org of Textured Piezoelectric Materials for Achieving High Energy Density research has been carried out on PZN single crystals because of their excellent dielectric and piezoelectric properties. Although PZN single crystals can be grown by the flux method, perovskite PZN ceramics cannot be synthesized by the conventional mixed-oxide method without doping. Attempts to synthesize perovskite PZN ceramics invariably results in the formation of a pyrochlore phase with accompanying degradation of the dielectric and piezoelectric properties. There is significant interest in finding a method to stabilize the perovskite phase in PZN (via alloying PZN with PZT) with...Thu, 22 Dec 2016 07:54:50 GMTvtippatents@vtip.org Tunable Functionality Graded Multilayer Ceramic Capacitators, 22 Dec 2016 07:53:54 GMTvtippatents@vtip.org Grade Thermal Energy Harvesting Device and its Manufacturing Techniques, 22 Dec 2016 07:52:23 GMTvtippatents@vtip.org to Manufacture Highly Conductive Vias and PROM Memory Cells by Application of Electric Pulses method of providing permanent very low resistance connections between two metal (e.g. Cu and Ti lines) intersecting lines separated by a thin dielectric has been demonstrated. In order to create such a permanent connection, one metal line may be grounded, and a linear voltage ramp, or a voltage pulse, is applied to the other metal line. Under electric stress a Cu filament is formed between Cu and Ti lines. For this method to work, the metal lines and the intermediate dielectric are required to have certain properties. One metal line must consist of an "active" metal, i.e. such metal that can...Mon, 12 Dec 2016 05:42:04 GMTvtippatents@vtip.org Compensation of Buck-boost Power Amplifier for Constant Frequency Operation Under Wide-load Variation resonant frequency of the buck-boost power amplifier varies with wide-load variation. When the switching frequency of the amplifier is fixed, detrimental current spikes would occur in boost switches. The efficiency would reduce by few percent with possible gate driver erroneous operation. The buck switches normally operates at hard-switching mode. In the disclosure, more efficient zero-voltage switching (ZVS) mode is obtained with an inductive tank placed between multiple phases of buck switches. The formed buck-boost topology is able to operate at the fixed frequency and without current s...Mon, 12 Dec 2016 05:42:01 GMTvtippatents@vtip.org into FGFBP1 to Treat a Variety of Pathological Conditions that Affect Skeletal Muscles and Spinal Cord firbroblast growth factor binding protein 1 (FGFBP1) and small peptides that mimic its function have the potential of treating a wide-range of conditions that affect skeletal muscles and motor neurons. Because FGFBP1 is significantly decreased prior to the onset of amyotrophic lateral sclerosis in skeletal muscles, it also serves as a biomarker for diagnosing individuals with the disease prior to the onset of neurological symptoms.Fri, 09 Dec 2016 07:43:58 GMTvtippatents@vtip.org Positioning Using RF Pattern Matching The present invention relates to telecommunications in general, and, more particularly, to a technique in which two or more wireless terminals cooperate to make measurements that assist in generating an estimate of their locations.Thu, 01 Dec 2016 06:31:28 GMTvtippatents@vtip.org Detection Based on Heterogeneous Scintillation Lattice, 21 Nov 2016 05:45:39 GMTvtippatents@vtip.org Active Fiber Optic Sensing Network for Structural Health Monitoring in Harsh Environments This optical fiber based distributed sensing system is able to monitor structure health, temperature and strain of the surrounding structure simultaneously in harsh environment of high temperature (1000 C). The distributed non-destructive evaluation is achieved by an all-fiber NDE structure and is immune to EMI and high temperature. And it can detect both defects inside structures and surface corrosions, which will give a more precise evaluation of the construction health. This system can claim other advantages of long term stability due to the nature of optical fiber sensing, lower cost and ...Mon, 21 Nov 2016 05:45:21 GMTvtippatents@vtip.org and Method of Stationary Source Computed Tomography computing tomography (CVCT) has been successfully applied for the diagnosis of a series of heart diseases. However, the limitations of temporal and spatial resolution and radiation dose inhibit the utilization of CVCT for more clinical applications. The specific primary bottlenecks fo the current CVCT include the difficulties of the synchronization with high or arrhythmic heart rates, the inability to measure blood flow, the detection of vulnerable plaques, the separation of calcium from iodine signals, the study of myocardial micro-vascular structure and perfusion, as well as t...Mon, 21 Nov 2016 05:45:19 GMTvtippatents@vtip.org Compositions and Methods for Heart Ischemia Reperfusion Injury heart disease is the biggest cause of death and disease among men worldwide and the second biggest killer of women - just behind ischemic stroke. We have developed a drug that can be given after an ischemic event such as a heart attack - i.e., myocardial infarction. This drug preserves heart muscle, reduces scarring and prevents the progression to heart failure that many patients who are suffering from ischemic heart disease and myocardial infarction undergo. This drug is also contemplated to have medicinal uses in preventing brain loss following ischemic stroke, as it targets a commo...Fri, 18 Nov 2016 08:36:30 GMTvtippatents@vtip.org Interlocks for Securing Software Executables, 15 Nov 2016 13:28:42 GMTvtippatents@vtip.org Indoor Localization by Vibration Tracking localization by wireless technology (e.g., GPS and cellular-based localization) remains problematic despite many years of research due to the impairments the building structure creates for wireless propagation. While there are niche wireless technologies (e.g., UWB, some RFID, Wi-Fi fingerprinting) suited to indoor use, they require that building occupants carry some device to enable localization. A new invention provides sub-meter localization accuracy without imposing any requirements on building occupants. With a novel application of decades old building sensor instrumentation techno...Tue, 18 Oct 2016 13:11:13 GMTvtippatents@vtip.org Copolymers Based on Sustainable Polysaccharides new process enables synthesis of new materials that combine the properties of diverse polymers, including polymers like cellulose esters, cellulose ethers, poly(ethylene glycol)s, aliphatic polyesters, polyurethanes, and others. The bonded co-polymers provide combinations of properties that are enhanced vs. any individual polymer, and may be synergistic. That have strong promise in battery, membrane, thermoplastics, elastomers, and many other applications.Tue, 18 Oct 2016 08:26:14 GMTvtippatents@vtip.org Baseband Signal Through a Narrowband Antenna electrically small antenna, ESA, is shown to be equivalent to a RLC tank resonator with either L or C as leaky component or in general L and C leak electromagnetic energy as radiation. In the case that only one of the reactive component is leaking energy, the stored energy in the reactive near field of the antenna is exchanged with the stored energy in the matching circuit (reactive tuning component) in the opposite type every half a cycle. Therefore, one can use this property and guide the stored energy in the tuning lumped component to another lumped component instead of the leaky compone...Tue, 11 Oct 2016 13:41:29 GMTvtippatents@vtip.org and Photodegradable Thermoplastic Elastomers and Methods for Their Preparation (PLA) is a biodegradable and renewable polymer, but it is not mechanically tough. Cellulose is an extremely abundant renewable feedstock, but it is difficult to process and also not mechanically tough. Thus, applications of these polymers are limited to those in which little stress is involved. PLA can be toughened by making it into a thermoplastic elastomer. They typical strategy involved adding PLA blocks both chain ends of a soft polymer block (e.g., polybuadiene) to form an ABA triblock copolymer. The core polybuadiene block is, however, not degradable. We describe here a metho...Tue, 11 Oct 2016 13:34:46 GMTvtippatents@vtip.org Propeller Micro-Pump and TCPC Smart Connector for Superior Hemodynamics and Cavopulmonary Support paediatric population and children with single functional ventricle, Fontan operation helps to reroute the deoxygenated blood to the lungs. The Total Cavopulmonary Connection (TCPC) is usually the method opted by the clinicians to surgically attach the superior vena cava (SVC) and inferior vena cava (IVC) to the left and right pulmonary artery. However, the non-physiologic flow patterns created by the Fontan procedure lead to an increase in chances of thrombus formation and pressure loss which calls for heart transplantation to prevent early and late stage pathophysiology. We are proposing...Tue, 11 Oct 2016 13:29:31 GMTvtippatents@vtip.org Centerline Isolation and Continuous Width Measurements Between Two Edges program takes any image with two nearly-parallel edges and identifies the centerline between them. During that process, the program measures the distance between those edges at each point along the centerline, resulting in a continuous width measurement between the two edges. This information is generated within seconds and can be used to identify changes in the shape or spacing of the edges as more images are processed.Mon, 26 Sep 2016 12:48:17 GMTvtippatents@vtip.org Jetting -- Using Nanoparticles to Replace Polymer Binders in Binder Jetting of Metal Binder Jetting of metals, polymer binding is selectively jetted onto a powder bed of metal to form a green part. Following printing, the green part undergoes a sintering post-process wherein the polymeric binder is pyrolized and the metallic particles sinter together. The use of polymer binders limits the printing process as they (i) burn off before sintering is induced, which causes part distortion during the sintering procedure, and (ii) leave residual ash into the part, which reduces its purity. In this invention, a metal nanoparticle suspension is used instead of a polymeric/solvent bin...Mon, 26 Sep 2016 12:06:56 GMTvtippatents@vtip.org Photoredox Ring-Opening Polymerization acids) (PAHAs), including polylactide (PLA), are important polymers that have been widely used in applications ranging from biomedical devices to packaging materials. We develop an unprecedented methodology to prepare high molecular weight PAHAs with side chain functionality.Fri, 23 Sep 2016 11:15:47 GMTvtippatents@vtip.org 3D Motion Tracking System Using Linear Optical Sensor Arrays (LOSA) tracking plays a vital role in various engineering disciplines involving motion analysis in industry and academia, and a significant area of research is developing low-cost, accurate tracking sensors. Certain engineering applications like robotics, navigation, biomechanics and virtual reality often require real-time position/attitude tracking. Motion tracking system do exist in market for quite some time but high cost remains an obstacle in widespread use of such system. The presented LOSA tracking system combines inertial and optical tracking without relying on magnetometer data which is s...Mon, 19 Sep 2016 12:38:34 GMTvtippatents@vtip.org Identification and Authentication Using Cardiac Signals, 12 Sep 2016 11:11:04 GMTvtippatents@vtip.org Hybridoma Clone Producing Monoclonal Antibodies Specific to Porcine CD137, 29 Aug 2016 06:28:10 GMTvtippatents@vtip.org Techniques for Three-Phase AC/DC Converters invention provides a modulation for three-phase AC/DC converter. This modulation can achieve soft switching and thus improve converter efficiency, especially for high-density-driven high frequency operation. In spite of variable switching frequency operation, this modulation has narrow switching frequency variation range, which reduces switching related loss. This modulation can be applied in both inverter mode and rectifier mode, and also can be applied in both non-interleaved operation and two-channel-interleaved operation.Fri, 26 Aug 2016 13:34:42 GMTvtippatents@vtip.org Dilithium Anionic Initiators for Isoprene Polymerization, 19 Aug 2016 05:23:44 GMTvtippatents@vtip.org Printing All-Aromatic, High Performance Polyimides and Polybenzoxazoles Using Stereolithography (SLA): Processing the Unprocessable polymers such as polyimides represent a class of polymers with exceptional thermal and thermo-mechanical properties. The semi-crystalline, rigid-rod, all-aromatic high-performance polyimide based on pyromellitic dianhydride (PMDA) and 4,4'-oxydianiline (ODA) (commonly known as Kapton) is thermally stable up to 500C and has a Tg at ~400C. This high Tg and lack of flow makes processing using traditional methods impossible. Here, we show that 3D printed structures of polymers such as Kapton can be prepared using an additive manufacturing (3D printing) technique called stereolithograp...Wed, 10 Aug 2016 06:38:25 GMTvtippatents@vtip.org Anti-Frosting Surface Comprised of Periodic Micro-Grooves Containing Sacrificial Ice Stripes date, no surface technology exists that can passively suppress the growth of frost under chilled and humid conditions. Active techniques, such as applying heat or antifreeze chemicals to the surface, are energetically costly and/or environmentally harmful. The closest thing to a passive anti-frosting technology is the sprinkling of salt over a surface, which creates localized dry zones by virtue of the depressed vapor pressure of the salt. However, as the salt collects water vapor over time, it becomes diluted and eventually ceases to work as a humidity sink. Our invention proposes to use i...Mon, 08 Aug 2016 13:36:12 GMTvtippatents@vtip.org Methods for Reducing Component Energy While Guaranteeing Performance in Computer Systems This technology allows users to specify performance and energy policies that are guaranteed by the software. Predictive analytic techniques are used to track load and schedule power policies for individual system components. The predictive analytic techniques are applicable to any device that has power modes controllable by software and load that can be monitored by software. The technology describes a method for managing the power modes in a high-performance, scalable solution. When system or device utilization falls below 100%, the technology automatically manages power modes to guarantee u...Mon, 01 Aug 2016 06:26:20 GMTvtippatents@vtip.org and System for Automatic, Systemic, Performance-Constrained Techniques for Reducing Power Consumption in Computer Systems, 25 Jul 2016 05:51:17 GMTvtippatents@vtip.org and System for Correlation and Analysis of Performance and Sensor Data in Computer Systems invention will impact the efficiency and reliability of computing systems. Our method and system analyzes sensor data (e.g. - thermals, power, humidity) and correlates the resulting data to processes and functions in the applications running on the system. In this way, users can identify the portions of applications (or processes or virtual machines or any running software) that affect the sensors in ways of interest to the user. For instance, a user may want to identify software hotspots in a single application by correlating source code functions to high temperatures in thermal sensor d...Mon, 25 Jul 2016 05:51:16 GMTvtippatents@vtip.org - Bile Salt Conjugates amphiphilic polymers based on natural, renewable polysaccharides that can stabilize solid and liquid phase dispersions of otherwise poorly water soluble bioactive or other small molecules.Mon, 18 Jul 2016 13:28:45 GMTvtippatents@vtip.org with EMI-Limiting Inductor, 18 Jul 2016 13:16:00 GMTvtippatents@vtip.org Semi Active Suspension System for Automobiles novel suspension system consisting of two independent electronically controlled dampers has been developed. The two dampers are placed one on top of the other and have electronic valves which are capable of changing the amount of damping a car can experience. Since two dampers are being used, the system can offer more control and therefore the car suspension can be designed for comfort and handling. A system that can do the same with this simple and affordable design does not currently exist. The change in performance obtained due to the damper is drastic and it thus fills a huge void which ...Tue, 05 Jul 2016 11:26:09 GMTvtippatents@vtip.org Feature Space Explorer, 30 Jun 2016 11:08:35 GMTvtippatents@vtip.org Assisted Mitigation of Reverse Salt Flux in Forward Osmosis Systems innovative method is developed to control and reduce reverse solute flux in forward osmosis (FO) systems. FO technologies have been studied and developed for sustainable desalination or waste water treatment (for reuse). A key obstacle for FO application is reverse flux of draw solute, which can cause loss of draw solute and thus increase the operational cost. This invention has successfully reduced reverse solute flux with the aid of electrolysis and a special design of FO systems.Mon, 27 Jun 2016 06:30:15 GMTvtippatents@vtip.org Monitoring and Forecasting System for Energy Producing Devices Based on Information-Fusion, 27 Jun 2016 06:30:11 GMTvtippatents@vtip.org Fiber Modified Asphalt Mixture invention utilizes abundant natural resources of bamboo fiber to mix with asphalt. The raw material is cheap and readily available. The manufacturing process is simple, molding easy, non-toxic and environmentally friendly. The prepared bamboo fiber modified asphalt mixture has good high temperature performance and resistance to water damage performance. It can be widely applied in highway pavement to improve the quality of highway.Relative to the unmodified asphalt mixes, the fiber modified asphalt mixes can significantly increase the low temperature cracking resistance and water stabilit...Mon, 27 Jun 2016 06:30:10 GMTvtippatents@vtip.org Molecule and Polymeric Hydrogen-Sulfide Donors with Benign Byproducts for Therapeutic Use invention describes the controlled decomposition of a class of compounds to afford hydrogen sulfide, which may be beneficial in treating a wide variety of diseases. The small molecule and polymer release H2S in a sustained manner, and no harmful byproducts are released. The H2S donor may be attached to drugs, peptides, nanoparticles, polymers, or other materials to increase its efficacy or localize its release.Tue, 21 Jun 2016 13:36:43 GMTvtippatents@vtip.org Eicosapentaenoic Acid (EPA) from Biodiesel-derived Crude Glycerol, 20 Jun 2016 06:07:46 GMTvtippatents@vtip.org Robotic Tail Mechanism Universal-Spatial Robotic Tail (USRT) is a hybrid robotic manipulator that combines an elastic back bone of a continuum robot with a series serial chain of universal joints as the tail structure. These universal joints allow relative yaw and pitch between individual bodies. Individual segments are created by terminating actuation cabling at a given disk. The cables' actuation is distributed along USRT by elastic springs between disks. Two types of springs are utilized: a central compressive spring that resists bending in all directions, and a vertical extension spring that helps offset gra...Tue, 03 May 2016 07:00:57 GMTvtippatents@vtip.org Robotic Tail (R3RT) Mechanism for Maneuvering and Stabilization of Mobile Robots Roll-Revolute-Revolute Robotic Tail (R3-RT) is a robotic system capable of generating dynamic spatial trajectories to provide enhanced performance onboard mobile robots. R3-RT is constructed from a serial chain of revolute joints that form the tail structure and can accommodate two segments of scalable length to achieve two distinct tail curvatures. Novelties in the design include: 1) a cable routing design that ensures cable pair extensions/retractions are equal, allowing two motors to control the two segment's bending, along with a third to control endless rotation roll motion without th...Tue, 03 May 2016 06:56:08 GMTvtippatents@vtip.org Modular Serpentine Robotic Tail Mechanism for Mobile Legged Robots Discrete Modular Serpentine Tail (DMST) is a robotic manipulator that utilizes two degree of freedom hybrid actuation to achieve dynamic spatial configurations to provide enhanced performance onboard mobile legged robots. The DMST is constructed from rigid segments interconnected together using revolute joints. It is a hybrid mechanism since it utilizes direct servo motor drive for roll motion and a cable transmission system to form tail curvatures. The DMST is designed to minimize the number of actuators required to form articulate, spatial curvatures. Its modular design enables identical...Tue, 03 May 2016 06:33:26 GMTvtippatents@vtip.org Modular Leg Mechanism for Legged Mobile Robots Robotic Modular Leg (RML) is a modular leg mechanism that is designed to reduce the complexity, cost, and control of legged mobile robots. The RML enables the resultant robot to perform forward and steering locomotion with fewer actuators than conventional legged robots. The proposed mechanism can be interconnected to two identical modules to form a biped and four identical modules to form a quadruped robot. The RML is composed of a double four-bar mechanism that maintains foot orientation parallel to the base and decouples actuation for simplified control, reduced weight and lower cost of...Tue, 03 May 2016 06:27:38 GMTvtippatents@vtip.org Robotic Glove Exoskeleton with Sensing and Force Feedback device that can record and catalog range of motion, angular velocity, angular acceleration, and finger pad pressures during various gripping patterns of the human hand is disclosed. These data will be used to characterize normal human motion. The device further has the capability to assist grip motions by serving as a powered hand orthosis for hands with compromised function and be utilized in rehabilitation training for individuals with limited hand grip control.Mon, 11 Apr 2016 12:44:54 GMTvtippatents@vtip.org and Composition for Achieving High Piezoelectric Voltage Coefficient rapid surge in the research on piezoelectric sensors is occurring with the arrival of the Internet of Things (IoTs). Single-phase oxide piezoelectric materials with giant piezoelectric voltage coefficient (g, induced voltage under applied stress) and high Curie temperature (Tc) are crucial towards providing desired performance for sensing, especially, under harsh environmental conditions. Here, we provide rational design criterion for piezoelectric sensing material incorporating (a) anisotropy/composition/phase structure, (b) microstructure and (c) domain engineering. Using this criterion we...Mon, 11 Apr 2016 11:21:11 GMTvtippatents@vtip.org Printing Vending Machine Dream Vendor is a 3D printing station that enables users to quickly fabricate prototypes for their academic, and even personal, design products. The unique "vending-machine" configuration allows students and the public to 3D print their designs without the need for a specialized operator or significant real-estate. The vending machine is used as follows: the user either creates or downloads a 3D part file and converts that file into the proper format for use in the Dream Vendor, and uses a keypad on the Dream Vendor to start the build. The Dream Vendor then builds the part (over several mi...Mon, 11 Apr 2016 10:22:18 GMTvtippatents@vtip.org For a 3D Printing Vending Machine DreamVendor interface provides a low barrier-of-entry way to introduce users to additive manufacturing. While providing users the ability to print models, of their own design or otherwise, it also educates the user about additive manufacturing. The software automatically connects to printers, providing the ability to queue print jobs, monitor the state of each printer, and provides manual control of all printer functions. Additionally, the interface provides the ability to load in 3D part models and graphically reposition, resize, and rotate the part before converting the file into a toolp...Mon, 11 Apr 2016 10:21:06 GMTvtippatents@vtip.org Printing Part Removal ejection mechanism design allows for removal of printed parts from a printer's build volume without taking up a lot of space when not in use. This design offers a major advantge for Delta style 3D printers because of their unique large vertical height and often non-rectangular footprint. The design allows closer placement of multiple machines and ensures reliable part removal for continuous, automatic printing of multiple parts. Additionally, a part retrieval system has been developed to allow users to retrieve an ejected part without the possibility of interacting directly with the machin...Mon, 11 Apr 2016 10:20:14 GMTvtippatents@vtip.org System Structure for Low Power Adapters innovation presents a novel system structure for low power adapters both for the power level below and above 75W. The system is consisted two-stage, namely ac-dc rectifier and unregulated isolated dc-dc converter. The second stage operates at fixed switching frequency to achieve high efficiency as well as easy feedback control and SR driving scheme. The first stage tightly regulates the intermidium bus voltage and optionally regulate the input current depends on whether it is necessary to meet the current harmonic standard.Mon, 11 Apr 2016 10:19:48 GMTvtippatents@vtip.org Method of Capacitor Voltage Ripple Reduction by Controlling Modulation Index Together with 2nd Order Current Injection for Modular Multilevel Converter this invention, a method of capacitor voltage ripple reduction for modular multilevel converter is proposed. In conventional control of MMC, capacitor voltage ripples consist of fundamental component and 2nd order component. That is because the module input power contains fundamental power and 2nd order power. With power flow analysis, the physical meaning is that this fundamental power is swapping between upper arm and lower arm, but the 2nd order power is delivered to the load. With this proposed method, both fundamental power and 2nd order power of module have been reduced dramatically. ...Mon, 11 Apr 2016 10:19:05 GMTvtippatents@vtip.org to Charge Battery from Multiple Sources is a converter that routes power among multiple input/output ports, and one application of the invention is to charge battery from multiple sources.Mon, 11 Apr 2016 10:18:25 GMTvtippatents@vtip.org Relation Viewer, 08 Apr 2016 13:18:54 GMTvtippatents@vtip.org Wave Energy Harvester Using Mechanical Modified Rectifier novel power take off (PTO) technology transforms the back-and-forth wave movement into a single-directional movement to more efficiently capture wave energy using the creative design of ball screw and one-way bearing. The new PTO will improve energy conversion efficiency and reliability with a very compact design, which solves the fundamental challenge of ocean wave-energy harvesting.Wed, 30 Mar 2016 08:48:11 GMTvtippatents@vtip.org Copolymer Materials new method for conversion of inexpensive, commercial cellulose esters and cellulose ethers to more functional products with high performance in delivery of proteins, genes, anionic drugs, and other anionic species, whether in medicine, food, personal care, agriculture, or other delivery applications.Thu, 10 Mar 2016 12:47:14 GMTvtippatents@vtip.org C03O4-SDC Protective Coating for Solid Oxide Fuel Cell Interconnects, 10 Mar 2016 08:41:00 GMTvtippatents@vtip.org Yeast for Production of 5-Hydroxytryptophan 5-HTP market was valued at USD 31.7 million in 2012 and is anticipated to reach USD 51.4 million by 2019, increasing at a CAGR of 7.1%. The present invention provides a valuable alternate to the plant extraction for the production of 5-HTP. The genetically modified yeast strain will provide sustainable and reliable suppy of 5-HTP. Using this invention, the yeast strains that produce 5-HTP could be developed as the dietary supplement for farm animals (e.g., cows and chickens), and increase the value of farm products. The probiotic yeast strains could also be developed as the pet food to imp...Mon, 07 Mar 2016 06:30:12 GMTvtippatents@vtip.org Motorcycle Helmet on-board system packaged exclusively within a standard motorcycle helmet. This stand-alone packaging does not require infrastructure support from the operator's vehicle. The packaging contains user audio and visual interfaces, for the implementation of safety applications.Wed, 02 Mar 2016 13:11:26 GMTvtippatents@vtip.org Power Take-Off Pumps For Wave Energy Conversion Tech's f2mc power take-off pumps convert energy from ocean waves in hydraulic energy using fluidic flexible matrix composite tube pumps. F2mc tubes consist of stiff reinforcing fibers embedded in a soft elastomer or polymer matrix. When a load is applied to the tubes, the volume of the composite pump is reduced and fluid is forced out of the tube through the stiff reinforcing fibers. When an absorber bundle (buoy) is attached to one end of the submerged pump in ocean, passing wave crests will cause the absorber bundle (buoy) to heave up, thus stretching the tube pump and forcing fluid...Wed, 02 Mar 2016 12:47:52 GMTvtippatents@vtip.org with Equalizers for Paralleled Switches, 29 Feb 2016 11:04:13 GMTvtippatents@vtip.org Program Synthesis From Natural Language For Computer Games, 11 Feb 2016 12:51:55 GMTvtippatents@vtip.org Power Amplifier with Improved Bandwidth, 08 Feb 2016 10:57:50 GMTvtippatents@vtip.org Amplitude Modulation invention (Simplex Amplitude Modulation, or SAM) is a fundamental improvement in digital communications waveform design, with potential application in any communications link that uses digital modulation. The key attribute is that the waveform achieves increased power efficiency at a given level of error performance without sacrificing bandwidth efficiency. Hence it will be most beneficial in power-constrained environments such as cellular phones, satellites, or any battery powered device (such as wireless devices using Internet of Things technology). The invention is an improvement on a ...Mon, 08 Feb 2016 07:59:38 GMTvtippatents@vtip.org and Apparatus of Interferometry for Quanitative Imaging and Sensing is the enabling technique in numerous measurement and imaging devices. For example, nearly all modern microscopes have built-in phase contrast (PhC) microscopy and differential interference contrast (DIC) microscopy capabilities, both of which are based on interferometry and for decades has been indispensable in research and industry. In another example, optical surface profilers rely on interferometry to accurately map surface topography and have found wide application in inspecting semiconductor and optical components. This invention provides a new method of interferometry tha...Wed, 03 Feb 2016 07:13:20 GMTvtippatents@vtip.org Production by an Artificial Enzymatic Pathway, 02 Feb 2016 12:07:06 GMTvtippatents@vtip.org Portable Tuned Mass Damper with Simple Tuning/Design for the Reduction of Vibrations in Civil Engineering/Architectural Structures IP consists of a device called "Portable Tuned Mass Damper (PTMD)" which is designed to be compact, portable, and easily adjustable. All parts of the device are screwed to each other to facilitate the construction and assembly. It can be installed within a building floor plenum, architectural elements or can be placed at the desired location directly on the structure (such as a floor). It can also be placed within the architectural or ornamental elements of building such as planters, cabinets, etc. Laboratory testing of the device has shown up to 85% reduction in the floor vibration when ...Mon, 25 Jan 2016 06:35:00 GMTvtippatents@vtip.org for Recovering the Fault-Free State of Microprocessors a fault attack, an adversary injects faults into the processor state during execution of a cryprographic software. Then the adversary exploits the injected faults to retrieve the secret information. Disclosed is a technique for the recovery of fault-free microprocessor state in case of a fault attack. Two shadow flip-flops are employed to maintain the fault-free content of an original microprocessor flip-flop. Every clock cycle, only one of the shadow flip-flops is updated. In case of a fault detection, the update of the shadow flip-flops are suspended. This ensures that one of the shadow f...Wed, 20 Jan 2016 07:01:09 GMTvtippatents@vtip.org Novel Lipid-Polymeric Hybrid Nanoparticle Based Nicotine Vaccine to Treat Nicotine Addiction, 04 Jan 2016 13:43:45 GMTvtippatents@vtip.org Degree Hybrid-Coupler Based Phase-Interpolation Phase-Shifter for Phase-Array Applications at W-Band and Beyond the proposed phase shifter, a 90 degree-hybrid performs I/Q phase splitting and phase interpolation to synthesize all four quadrant phases after amplitude weighting made by VGAs. In such way, by designing the weighting amplifiers with a matched impedance, the I/Q accuracy and thereby accuracy of phase interpolation is not sensitive to the amplifier loading. In contrast, the conventional phase shifters where the quadrature network precedes active amplifiers suffers from a loading effect from amplifiers, hence I/Q accuracy degrades. All building blocks in the proposed system can be cascaded w...Mon, 04 Jan 2016 13:02:44 GMTvtippatents@vtip.org Traffic Dependence Analysis for Android Application Security to PC malware, researchers found that malicious mobile applications usually fetch and run code on-the-fly without the user's knowledge. Their purpose are often to stealthily collect and exfiltrate sensitive information. Static analysis solutions typically inspect the source code, binaries or call sequences for detecting anomalies. However, dynamic code loading, Java reflection-based method invocation, data encryption, and self verification of signatures are commonly seen in the malware code. These types of code obfuscation make static analysis based detection challenging. Dynamic analy...Mon, 04 Jan 2016 12:08:50 GMTvtippatents@vtip.org Based Harmonic Filter for Optimal Harmonic Impedance Modulation at Millimeter-Wave for High Efficiency Class-F^-1 Power Amplifiers, 17 Dec 2015 13:49:53 GMTvtippatents@vtip.org Derivatives for Solid Dispersion cellulosic polymers are described which have substantial water affinity and thereby have superior ability to stabilize hydrophobic species in water, and release hydrophobic species to form supersaturated solutions. They have strong potential for controlled release, amorphous solid dispersion, waterborne coatings, and other aqueous dispersion applications.Thu, 17 Dec 2015 12:52:29 GMTvtippatents@vtip.org Nanoparticle/Bacterial Cellulose Nanocomposite for Analyte Detection low affinity of many analytes to noble metal surfaces often limits their capacity to be detected by surface enhanced Raman spectroscopy (SERS). To enhance surface affinity and improve reproducibility we have produced a nanocomposite consisting of a bacterial cellulose support matrix that is embedded with either gold or silver nanoparticles. By restraining the SERS enabling nanoparticles within this matrix we minimize the uncontrolled nanoparticle aggregation that is often responsible for the lack of reproducibility and quantitatively detect a broad range of analytes. The entire sampling pr...Mon, 14 Dec 2015 05:37:06 GMTvtippatents@vtip.org Pamplin Data Tagging System, 20 Nov 2015 09:30:57 GMTvtippatents@vtip.org is a visual analytics tool prototype specializing in unstructured text analysis. StarSPIRE [Figure 1] is a multi-model semantic interaction tool, which couples foraging and synthesis activities through learning from user interactions to adjust a model of the user's interests within the dataset. This model is then used to rearrange data, represented as a node-link diagram, in the workspace as well as determine what data should be displayed and what should be stored out of sight. This push-and-pull nature of disclosing only a portion of the dataset that exceeds a variable relevance thr...Tue, 10 Nov 2015 05:46:46 GMTvtippatents@vtip.org for Blind Communications Signal Reference Tone and Preamble Discovery and Synchronization provide a method for naively discovering and extracting reference signals from radio communications signals, and provide a means to discover their arrival times or synthesize them over the air without the need for expert knowledge of a radio waveform's specific specification. Tue, 10 Nov 2015 05:46:43 GMTvtippatents@vtip.org is an interactive visual analytics tool we developed to enable non-experts of statistical models to explore domain-specific, high dimensional data. This application implements weighted multidimensional scaling (WMDS) and allows for both parametics and observation-level interaction (OLI) to provide in-depth data exploration. For OLI, Andromeda specifically implements Visual-to-Parametric Interaction (V2PI) developed here at Virginia Tech. A user uploads high-dimensional data into the tool and a two-dimensional spatial visualization is provided. These data points as well as other param...Mon, 09 Nov 2015 11:16:02 GMTvtippatents@vtip.org for Blindly Receiving Transmitted Radio Bits and Symbols from a Corrupted and Modulated Radio Signal provide a method for naively combining and demapping to data bits digital radio communications signals, this provides a potential gain in capacity, flexibility and interoperability while potentially offering reductions in system complexity, design time/cost, computational complexity, and expert protocol knowledge. Mon, 02 Nov 2015 05:30:01 GMTvtippatents@vtip.org Indoors Localization System invention disclosure proposes a new augmented system for indoor localization utilizing smart building infrastructure. The system consists of an indoor smart sensor network capable of monitoring motion trajectories of anonymous wireless users inside a building, and an external system capable of tracking a queried user's motion trajectory but at low accuracy. Implementing smart trajectories similarity measures over small time intervals, the proposed augmented system will be able to identify the trajectory that is closest to the queried user motion trajectory from the set of trajectories tra...Thu, 29 Oct 2015 12:21:44 GMTvtippatents@vtip.org v. 2.0 - Fortran Package for Forward, Tangent Linear, and Adjoint Integration of Ordinary Differential Equations v2.0 (forward, adjoint, and tangent linear integration of ODEs) is a library of explicit and implicit Runge-Kutta and Rosenbrock solvers for the simulation of nonstiff and stiff ODEs. The library performs forward simulations, and sensitivity analysis via the discrete adjoint and tangent linear methods. Many engineering systems are described by ordinary or partial differential equations. The ability to simulate accurately and efficiently these equations on a computer hinges on the availability of high quality time discretizations. FATODE provides a high quality, highly efficient simulati...Fri, 23 Oct 2015 10:47:58 GMTvtippatents@vtip.org - A MATLAB ODE Solver and Sensitivity Analysis Toolbox is an ODE solver and sensitivity analysis toolbox in MATLAB core ordinary differential equation suite. MATLODE offers new families of algorithms and significantly higher order methods (within these families) than there is currently available in MATLAB's ODE suite. In addition, MATLODE offers users the possibility to add their own custom derived coefficients tailored for their applications. An important feature of MATLODE is a native MATLAB implementation of sensitivity analysis. This is of critical importance in a modeler's workflow because MATLAB, an interpretive language, allows for ...Fri, 23 Oct 2015 10:47:26 GMTvtippatents@vtip.org Linear Terminator Wave Energy Converter, 23 Oct 2015 10:46:46 GMTvtippatents@vtip.org Method for Jointly Adapting an OFDM Waveform and the Demodulator for Interference Mitigation and Harsh Channels technology allows OFDM-based data links the ability to communicate in the presence of interference, or when interference avoidance is not possible. If the interference is unavoidable, this method provides protection to the physical layer of a communications link. An example of this application would be the protection of control channels in cellular radio, given the vulnerability of LTE to interference [1]. It can also be a waveform for Dynamic Spectrum Access (DSA) for white space spectrum where resilience to interference is a necessary condition and complete interference avoidance may no...Fri, 23 Oct 2015 10:44:04 GMTvtippatents@vtip.org A Scalable Parallel Circuit Simulator Using the Direct Method on a Heterogeneous Cloud concept is to use state of the art technology advancement in high performance cloud computing to increase the performance of the legacy problem of mixed-analog circuit simulation. Scalable performance of at least one order of magnitude was obtained. Fri, 23 Oct 2015 10:43:20 GMTvtippatents@vtip.org Metal Organic Frameworks for Carbon Dioxide Sequestration, 23 Oct 2015 10:42:30 GMTvtippatents@vtip.org Method to Address a Neighboring-Channel Interference from High-Powered Radar invention addresses the scenario in which a weak desired signal reaches a poorly-selective receiver along with a strong radar signal. Traditionally, this scenario is addressed using an Automatic-Gain-Control (AGC) to fit the strong signal into the dynamic range of the receiver. However, AGC based method is not optimal because it desensitizes the receiver, sacrificing the signal-to-noise-ratio of the desired signal. We propose the use of an auxiliary receive path to address this problem of strong neighboring-channel signals. In this new method, receiver gain is not lowered to avoid clippin...Fri, 23 Oct 2015 10:41:37 GMTvtippatents@vtip.org Wideband Signal through an Electronically Small Antenna Using Antenna Modulation innovation allows wideband radiation of high data rate signals through an electrically small antenna, by modulating the antenna structure.Fri, 23 Oct 2015 10:40:48 GMTvtippatents@vtip.org Laser Micro Machining machining technology that can deliver ultra-high aspect ratio drilling, curved path drilling, non-uniform drilling, and real-time element analysis. Fri, 23 Oct 2015 10:32:17 GMTvtippatents@vtip.org IP Discovery and Reuse can save significant amounts of time by not having to redesign circuits that already exist. The IP discovery tool uses different matching techniques to try and find matches between digital circuits with an emphasis on design reuse. It helps broaden the community of hardware developers as designers contribute and learn as a whole. Furthermore the tool can be extended to a wide variety of applications. Finding similar circuits and then providing multiple implementations of the circuit can provide optimization suggestions. One design may be more efficient for a particular function and ...Fri, 23 Oct 2015 10:30:17 GMTvtippatents@vtip.org Variant Antennas, 23 Oct 2015 10:00:55 GMTvtippatents@vtip.org of 3D (Three Dimensional) Bacterial Cellulose (BC) Scaffold for Tissue Engineering novel BC fermentation technique for controlling 3D shape, thickness and architecture of the entangled cellulose nano-fibril network is presented. The resultant nano-cellulose based structures are useful as biomedical implants and devices, are useful for tissue engineering and regenerative medicine, and for health care products. More particularly, embodiments of the present invention relate to systems and methods for the production and control of 3-D architecture and morphology of nano-cellulose biomaterials produced by bacteria using any biofabrication process, including the novel 3-D Biopri...Fri, 23 Oct 2015 09:57:23 GMTvtippatents@vtip.org Bed for Monitoring Patient Vital Signs, 23 Oct 2015 09:56:18 GMTvtippatents@vtip.org Fiber Optic Speckle Sensing System, 23 Oct 2015 09:55:43 GMTvtippatents@vtip.org 1097 and 1229, Potent Antifungal Peptides from Burkholderia Ambifaria 2.2 N, 21 Oct 2015 12:29:02 GMTvtippatents@vtip.org Fiber Bragg Grating Based Distributed Multi-Parameter Sequence, 21 Oct 2015 07:45:06 GMTvtippatents@vtip.org for Establishing a Moving Target Connection By Sharing Only Publicly Available Information and a Method for Secure Communications Between Many Clients and a Server Using Moving Target IPV6 Defense (MT6D). primary limitation of most network based moving target solutions is that they rely purely on statically defined pre-shared information in order to establish connections. This pre-sharing does not scale when attempting to apply a moving target defense to a server that is providing services to a large number of clients. Scaling introduces problems of logistics and security. Logistically, it is extremely challenging to distribute and configure static information on a large number of systems that are distributed across the Internet without comprising the anonymity and security benefits of a mo...Thu, 01 Oct 2015 12:17:26 GMTvtippatents@vtip.org Sample Injection Unit for Miniaturized Gas Chromatography System invention demonstrates a micro-machined sample injection unit which consists of a T-shaped channel operated with a simple setup involving a single 3-way fluidic valve, a micro-pump for sample loading and a carrier gas supply for subsequent analysis of the volatile organic compounds (VOCs). The innovative sample injection technique described herein requires the loading time of a few seconds duration and produces very sharp and repeatable sample pulses (full-width-at-half-maximum - 200 ms) at the carrier gas flow rate compatible with efficient chromatographic separations. Moreover, the inve...Wed, 30 Sep 2015 06:09:15 GMTvtippatents@vtip.org Vehicular Data Dissemination System proposed invention is intended as a low-cost adaptation to modern vehicular data transfer, which commonly uses a shared data bus and protocols similar to token ring network topologies, where devices notionally take turns in reporting their information to the master controller on the shared bus prior to returning the token / permitting another subsytem to communicate on the shared bus. Significant improvements are anticipated both in the security behavior (susceptibility to fraudulent messages) and the messaging latency (how quickly life critical messages can be sent without congestion on t...Mon, 21 Sep 2015 06:07:08 GMTvtippatents@vtip.org Underlay Signals, 21 Sep 2015 06:07:08 GMTvtippatents@vtip.org Ethers for Solubility Enhancement technology is a novel method for making functional materials from sustainable, renewable polysaccharides. It focuses on making materials that have good solubility, dispersability, or otherwise have high affinity in and for water. These materials can be designed to contain virtually any functional group, thereby permitting the designer to equip them with features like pH sensitivity, adhesion, targeting capability, or ability to crosslink. The new chemistry is high-yielding, efficient, extremely mild, and tolerant as mentioned with regard to functional group.Mon, 21 Sep 2015 06:07:07 GMTvtippatents@vtip.org Cellular Ablation Based on the Morphology of Malignant Cells method presented herein can be utilized for the treatment of benign and malignant neoplasms. The mechanism of action is a purely physical treatment option that provides targeting killing options based on enlarged cellular nuclei, a reliable characteristic of malignant neoplasms. By tuning the parameters of a pulsed electric field treatment in silica and testing in vitro a treatment protocol can be developed enhancing preferential killing of malignant cells while sparing healthy brain cells. With the proposed method it is also possible to provide an estimate electric potential disruption to...Mon, 21 Sep 2015 06:07:07 GMTvtippatents@vtip.org and Related Complexes of Cobalt, Rhodium, Iridium and Ruthenium Piano Stool Compunds as Anti-Microbial Agents, 21 Sep 2015 06:07:05 GMTvtippatents@vtip.org Current Driver, 21 Sep 2015 06:07:05 GMTvtippatents@vtip.org Esophageal Intubation Detection Device using Giant Magneto Resistance Sensors, 21 Sep 2015 06:07:05 GMTvtippatents@vtip.org Design, System Architecture, and Enabling Software for Design and Control of a Bacteria-Guided Mobile Robot, 21 Sep 2015 06:07:04 GMTvtippatents@vtip.org Computationally-Scalable Method for Providing Privacy-Preserving Authentication, 21 Sep 2015 06:07:04 GMTvtippatents@vtip.org Mobile Application, 21 Sep 2015 06:07:03 GMTvtippatents@vtip.org Efficiency and Oxygen Resistance of Ru,Rh,Ru Water Reduction Photocatalysts with the Addition of Polyelectrolytes robust photocatalytic system has been developed through the incorporation of polyelectrolytes into photolysis solutions. Polyelectrolytes have a profound impact on the efficiency of water reduction photocatalysts, increasing hydrogen production substantially compared to aqueous solutions alone. The use of low cost, abundant polyelectrolytes is a promising new method to increase the stability and efficiency of water reduction catalysts in air-saturated aqueous solutions. Mon, 21 Sep 2015 06:07:02 GMTvtippatents@vtip.org Manufacturing of Magnetic Components, 21 Sep 2015 06:07:02 GMTvtippatents@vtip.org to Protect the LTE Systems Against Control Channel Spoofing technology allows legal LTE systems to operate in LTE control channel spoofing environments, where similar control signals are encountered along with the legal LTE signals. The channels affected are the Primary and Secondary Synchronization Signals (PSS, SSS) and the Broadcast channel (BCH). These channels can be easily decoded and reproduced by anyone to spoof the system. This threat is omnipresent as it does not require any major engineering skills or expenses. Our technology allows to detect non-legal LTE cells (spoofer) and initiate suitable actions or simply ignore them and operate a...Mon, 21 Sep 2015 06:07:00 GMTvtippatents@vtip.org for Modeling, Sensitivity Analysis and Optimization of Multibody Systems This disclosure introduces MBSVT (Multibody Systems at Virginia Tech), as a software library for the kinematic and dynamic simulation of multibody systems, with forward kinematics and dynamics, direct, and adjoint sensitivity analysis, and optimization capabilities. The MBSVT software was developed in Fortran 2003 as a collection of Fortran modules and it was tested on several different platforms using multiple compilers. The kinematic library includes dot-1 constraint, revolute, spherical, Euler, and translational joints, as well as distance and coordinates driving constraints. The forward ...Mon, 21 Sep 2015 06:06:58 GMTvtippatents@vtip.org Important People in Images preserve memories of events such as birthdays, weddings, or vacations by capturing photos, often depicting groups of people. Invariably, some individuals in the image are more important than others given the context of the event. This IP proposes understanding and quantifying this concept of importance in group photos, predicting this importance and then using it to enhance real world applications. The IP gives a way to convert this abstract, subjective concept of importance into a measurable score. The IP shows a general design methodology to use the scores to train machine learning mo...Mon, 21 Sep 2015 06:06:58 GMTvtippatents@vtip.org Derived Stem Cell Therapy for Animals, 21 Sep 2015 06:06:51 GMTvtippatents@vtip.org for Blind Noise Removal and Signal Cleaning and Recovery in Radio and Communication Systems provide a method to naively learn structured radio and communications signals without prior knowledge of signal structure or internals. This method then allows for the removal of noise and interference deviating from the learned signal structure allowing for potential capacity gains or simplifications in radio receiver design and complexity.Fri, 18 Sep 2015 06:32:26 GMTvtippatents@vtip.org of Hydroxyl-substituted Polysaccharide Derivatives and broadly useful chemistry for appending hydroxy-terminal groups to polysaccharide, useful for crosslinking for coatings and other applications, enhanced solubility and processing, and as a convenient handle for appending other functional groups such as for targeting, triggered release of drugs, adhesion, or other applications. Thu, 17 Sep 2015 12:51:30 GMTvtippatents@vtip.org of Preparing Sphere Coatings for Antibiofilm Materials, 02 Sep 2015 10:46:31 GMTvtippatents@vtip.org Fiber Nanonet Based Single and Multi-Cell Diagnostic and Drug Testing Platform, 02 Sep 2015 06:49:56 GMTvtippatents@vtip.org MLV and Subunit Vaccines Created by DNA Shuffling Against Porcine Reproductive and Respiratory Syndrome Virus (PRRSV), 15 Jul 2015 07:19:14 GMTvtippatents@vtip.org Compositions and Methods for Hemichannel Inhibition, 02 Jul 2015 11:39:41 GMTvtippatents@vtip.org Species-Selective Insecticidal Carbamates for Mosquito Control, 01 Jun 2015 08:27:26 GMTvtippatents@vtip.org Novel Insecticides for the Malaria Mosquito, 01 Jun 2015 08:23:41 GMTvtippatents@vtip.org Particle Transport for Medical Image Reconstruction (DMIR), 26 May 2015 05:09:16 GMTvtippatents@vtip.org and Apparatus for Measuring Static Friction at High Speeds grip of gloves used to catch balls in a sports related setting is evaluated using the static coefficient of friction between the glove and ball material. The current test standard starts with the materials in contact and then determines how much force is required to separate them. However, the results are not always indicative of how the gloves will perform in a high speed application. This procedure outlines a method for testing static coefficient of friction when the two surfaces involved come together at game relevant speeds. The data from this test are more indicative of how a glove wi...Tue, 26 May 2015 05:09:15 GMTvtippatents@vtip.org Complexes as Photocatalysts for the Production of Hydrogen from Water, 22 May 2015 13:08:23 GMTvtippatents@vtip.org and System for Product Defect Identification from User Reviews, 11 May 2015 05:29:35 GMTvtippatents@vtip.org SR Driving Scheme for Resonant Converter this invention, adaptive SR driving for resonant converter using ripple counter concept is proposed. With the proposed method, SR drain to source voltage Vds is sensed to detect the body diode conduction and SR is well tuned to eliminate the body diode conduction within all operation regions of resonant converter in different applications. Tow control schemes based on the proposed concept are claimed: one is suitable for conventional resonant converter, which tunes the SR on-time every switching cycle; another one is generalized scheme and suitable for high frequency resonant converter, whi...Mon, 30 Mar 2015 05:32:13 GMTvtippatents@vtip.org Helper 7 and Privacy Helper 8, 23 Mar 2015 05:23:43 GMTvtippatents@vtip.org Novel Driving Scheme for Synchronous Rectifier in CRM Flyback Synchronous rectifier (SR) is widely adopted in flyback converter to reduce the conduction loss. However, the conventional SR driving method based on direct current or voltage sensing is sensitive to the parasitic ring, which may cause SR early turn off and therefore decrease the converter efficiency. This innovation presents a novel SR driving method to avoid the impact of parasitic ringing by adding an simple RC network. The RC network senses the voltage across SR and generates a very clean waveform which is similar to the magnetizing current waveform. SR signal could be easily generated b...Fri, 27 Feb 2015 12:11:10 GMTvtippatents@vtip.org Simplified Optimal Trajectory Control (SOTC) Based on Only VO and ILoad In this invention, multi-step Simplified Optimal Trajectory Control (SOTC) based on only VO and ILoad is proposed to solve the challenges in the control of resonant converter. The main concept involved in this invention is that adaptive multi-step SOTC based on controller's performance is employed to settle resonant tank. The proposed method has a very simple control scheme, and almost the same performance as OTC, while at the same time can be easily extended to high frequency applications. With the proposed multi-step SOTC, 4 applications are claimed and explained in detail: the first claim...Fri, 27 Feb 2015 12:11:09 GMTvtippatents@vtip.org Current-Mode Control with Single-Step Load Transient single-step load transient improvement structures are proposed for current mode controlled converters. Two popular variable-frequency current mode controls are Constant On-Time (COT) and Ramp Pulse Modulation (RPM) due to their fast transient response. However, conventional COT and RPM both need multiple steps to increase inductor current during load step-up transient. The fastest transient response should be a single-step response. In this invention, two methods are proposed to achieve single-step load transient for current mode controls by improving the current control structures....Fri, 27 Feb 2015 12:11:09 GMTvtippatents@vtip.org Complexes as Photocatalysts for the Production of Hydrogen from Water, 27 Feb 2015 12:09:29 GMTvtippatents@vtip.org Battery Current Waveform for Bidirectional PHEV Battery Charger, 22 Dec 2014 06:00:16 GMTvtippatents@vtip.org Inductor for Interleaved Three-level DC-DC Converters and Its Integrated Designs, 22 Dec 2014 06:00:16 GMTvtippatents@vtip.org Nano-patterning of Planar and Non-planar Surfaces, 10 Dec 2014 07:49:15 GMTvtippatents@vtip.org and Manufacture of Generalized Flow Profile-Producing Devices (Stream Vane) new method for the design and manufacture of flow conditioning devices has been developed. The devices are capable of producing any desired outlet flow profile consisting of total pressure and flow angle (swirl) distributions. The method utilizes new computational procedures for the aerodynamic and mechanical design of the device, providing improved accuracy for aerodynamic flow and expanded capabilities for producing a desired flow field. Along with increased capability, cost and time associated with producing the device are drastically reduced with respect to current practice. The method i...Tue, 11 Nov 2014 06:01:21 GMTvtippatents@vtip.org Methylerythritol Phosphate Pathway Inhibitors, 29 Oct 2014 12:05:31 GMTvtippatents@vtip.org Reducing Surface Treatment for Airfoil This innovative design comprises a surface treatment on airfoils that reduces trailing edge noise. Existing measurements suggest noise reduction by as much as 15dB. Most present designs to mitigate trailing edge noise involve changing the shape of the airfoil trailing edge. However, this technology utilizes a novel surface treatment to attenuate boundary layer pressure fluctuations and reduce span-wise correlation of turbulent structures impacting the trailing edge. Tue, 14 Oct 2014 11:44:56 GMTvtippatents@vtip.org and Systems for Ranking Academic Units, 13 Oct 2014 13:02:52 GMTvtippatents@vtip.org Peptides Stimulate the Formation of Inhibitory Brain Synapses invention describes a novel compound with prominent commercial value as a therapeutic treatment for neural conditions such as, autism, epilepsy, and schizophrenia. These disorders have been linked to inhibitory synapse defects formed by interneurons in the hippocampal region of the brain. Researchers at Virginia Tech have synthesized peptides to regulate the formation and function of inhibitory brain synapses, allowing neural defects to be corrected with the use of this innovative compound. To date, animal studies have been completed and have shown promising efficacy potential.Wed, 24 Sep 2014 05:13:24 GMTvtippatents@vtip.org Gas Chromatography Systems A novel Micro GC architecture has been proposed in this work, based on a monolithically integrated microfabricated separation column and thermal conductivity detector (TCD). The architecture also has a method to perform very sharp injections from the micro-preconcentrator, which is compatible with flow sensitive gas detectors like TCD. The proposed system has been characterized for environmental monitoring applications but can be extended to diverse sets of applications such as water monitoring, homeland security, and food analysis. Wed, 24 Sep 2014 05:13:23 GMTvtippatents@vtip.org Interface Sensing Based on Traverse Wave and Pulse Train Technique, 24 Sep 2014 05:13:22 GMTvtippatents@vtip.org Boltzmann Methods for Porous Media with Integrated Averaging (LBPM-WIA) LBPM-WIA is a two-phase flow simulator that can be used to access a wide range of information relevant to petroleum recovery. The code includes both simulation and analysis components that can be extended to analyze information from well cores and make quantitative inferences to inform the strategy employed for recovery. The code can be extended to compute information such as porosity, pemeability, and relative permeabilities. By relying on a novel implementation, predictive information for multiphase systems can be obtained more efficiently than with traditional methods. Based on LBPM-WIA ...Wed, 24 Sep 2014 05:13:13 GMTvtippatents@vtip.org Utility Proportional Fairness Bandwidth Allocation In Radar-Coexistent Cellular Networks As mobile subscribers astronomically increase their monthly wireless traffic, wireless communications require more bandwidth. This novel two-stage resource optimally assigns bandwidth to mobile devices in cellular networks by allowing communication devices to leverage operating frequency bands. With quality of service in mind, cell systems refrain from interference with radars as the developed algorithms fairly allocate radar spectrum resources among the sectors of the cell communication system. Additionally, hardware modifications to the cellular system or the radar are not required.Wed, 24 Sep 2014 05:13:02 GMTvtippatents@vtip.org Resource Block Allocation In Cellular Communications Networks: A Utility Proportional Approach Radio Resource Block allocation aims at allocating rates under different bandwidth demands in the communications network. This novel algorithm allocates resources from radio resource blocks to optimally provide cellular communication users with appropriate frequency bandwidth in the enormously increasing mobile communication space. Radio resource blocks are assigned to users to meet their quality of service requirements under a proportional utility fairness policy, ensuring no user is dropped. Subsuming delay-tolerant and real-time applications, the algorithm is efficient in time and computat...Wed, 24 Sep 2014 05:13:01 GMTvtippatents@vtip.org Reconfigurable RF Technology This novel development incorporates a cognitive reconfigurable radio frequency technology to enable spectrum sharing capability at low cost. The cognitive radios incorporate reconfiguring ability for optimal operations under varying radio environments, including when interference exists in the designated frequency band. The smooth operation without a high quality pre-selector filter allows this flexible radio to be small sized, highly reliable, and offered at low-cost. Wed, 24 Sep 2014 05:12:46 GMTvtippatents@vtip.org for Plasma Spray Electrode Wear State and Characteristic Identification disclosure is for a simple, low cost means of consistently identifying the degree of wear in plasma spray nozzles/anodes. Furthermore, it can be used to ensure consistent of quality of new nozzles.Wed, 24 Sep 2014 05:12:26 GMTvtippatents@vtip.org - Interior Tomographsiome this disclosure, the tomogranphy approach, systems and methods are suggested. This disclosure is related to our earlier disclosures on interior tomography, interior SPECT, and interior MRI but it represents a higher level integration and a paradigm shift. It is significantly distinguished from the current multi-modality theory and practice in several aspects. The most important features include the focus on a relatively small region of interest (ROI), the synergy of relatively more imaging modes of different nature, and the compactness of the resultant systems. This can be a groundbreaking ...Wed, 24 Sep 2014 05:12:05 GMTvtippatents@vtip.org Sensor for On-line, Real-time Analysis of Chemical Gases Dissolved in Transformer Oil, 24 Sep 2014 05:11:51 GMTvtippatents@vtip.org Inverter Efficiency Improvement with Hybrid Switch A hybrid switch comprising two semiconductor switches connected in parallel but having different voltage drop characteristics as a function of current facilitates attainment of zero voltage switching and reduces conduction losses to complement reduction of switching losses achieved through zero voltage switching in power converters such as high-current inverters. Wed, 24 Sep 2014 05:11:41 GMTvtippatents@vtip.org to Improve Biomedical Images Produced by Limited-Angle Radiological Scanning, 24 Sep 2014 05:11:40 GMTvtippatents@vtip.org Loaded Helix Antenna, 24 Sep 2014 05:10:52 GMTvtippatents@vtip.org Gelation, Solvent-Extration/Aerogel Formation, and Reactions Thereof to Produce Non-Random Functionalization of Poly (Aryl Ether Keytones) have discovered a procedure to prepare a thermo-reversible gel of poly (ether ether ketone) (PEEK). These gels allow the formation of solvent-extracted aerogels of an engineering thermoplastic for high temperature insulation applications. Furthermore, these gels allow for the formation of functionalized PEEK bearing a non-random arrangement of the functional groups without disrupting the inherent crystallinity of the polymer. Sulfonated PEEK with high ion content and crystallinity is produced by this invention.Mon, 08 Sep 2014 12:44:38 GMTvtippatents@vtip.org Carbohydrate Binding Protein for Modulation of Immune Responses, 12 Aug 2014 10:07:50 GMTvtippatents@vtip.org Maneuvering Small Target Platform for Light and Heavy Vehicle Applications device can be used for collision warning testing and reduces the cost of current marketed products by having the ability to be struck while negating the possibility of damage to striking vehicles and increasing the safety of testing scenarios and drivers. Tue, 12 Aug 2014 10:07:49 GMTvtippatents@vtip.org Release of Antigen In Dendritic Cells Using pH-Sensitive Liposome-Polymeric Hybrid Nanoparticles nano delivery system that can stay stable during circulation in vivo, as well as enables rapid release of the encapsulated antigen in dendritic cells would be of great value in vaccine development. Here, we present the development of a nano hybrid particle consisting of a pH sensitive lipid shell and a poly (lactic-co-glycolic) acid (PLGA) core. This nanoparticle, with a mean size of 120.1 +/- 8.8 nm and positively charged surface (zeta potential was of 14.2 +/- 1.4 mV), may facilitate its uptake by dendritic cells. The instant disintegration of lipid shell in response to a low pH challenge ...Tue, 12 Aug 2014 10:07:46 GMTvtippatents@vtip.org Profile Coupled Inductor Substrate with Transient Speed Improvement innovation presents the low profile inverse coupled inductor with very fast transient response for the high density 3D integrated VR module to power the microprocessor. The inhomogenous core structure is proposed by introducing a non-magnetic material or low permeability magnetic material into the leakage flux path of the coupled inductor. The transient speed of the coupled inductor can be well controlled by finely tuning the leakage flux. The coupled inductors with different transient performance can be designed and fabricated according to the transient requirement of the system. Tue, 12 Aug 2014 10:07:45 GMTvtippatents@vtip.org Curtain This technology, Life Curtain, implements a new design for installation above a man door entrance in permanent or portable refuge alternatives for underground mining. Current airlock chambers are often small, limit only one person to enter at a time, and require large volumes of air to purge the contaminated area. The Life Curtain design reduces the amount of air and decreases the space constraints typically associated with airlocks. This innovative curtain successfully repels contaminated mine air and allows workers to move swiftly to safety inside the rescue chamber. Tue, 12 Aug 2014 10:07:44 GMTvtippatents@vtip.org and Apparatus of High-Sensitivity Quantitative Phase Microscopy phase microscopy (QPM) is a group of techniques that measure the optical path delays associated with a sample, which may be transparent, translucent or opaque. QPM systems can provide quantitative data about an object and have seen fast growing applications in a variety of fields including metrology, live cell imaging and multi-phase flow. In this disclosure, we describe novel QPM methods and a number of example apparatus. Based on special interferometry and signal processing, these methods can provide quantitative phase data of the sample at high speed (several hundred fps or hig...Tue, 12 Aug 2014 10:07:43 GMTvtippatents@vtip.org - "The Ladder Chair" is a furniture piece that can be fixed into multiple arrangements which allow the handler to use it as a chair, lounge, table, and even a flat package for carrying. This piece can be used in any application, indoors and out, and has the potential to become the new everyday portable chair. Tue, 12 Aug 2014 10:07:41 GMTvtippatents@vtip.org Nanomaterials and Methods of Production nanomaterials are a new chemical entity that can be used to make biomaterials and other materials. They have a unique ability for self-assembly and spontaneously form highly ordered material structures with novel mechanical, chemical, and biological characteristics. They have advantages over conventional biomacromolecules in that keratin nanomaterials have a different chemical composition and elicit different responses when in contact with cells and tissues. Methods for making keratin nanomaterials rely on an undisclosed process that employs the use of a narrow range of phosphate buffe...Tue, 12 Aug 2014 10:07:40 GMTvtippatents@vtip.org Nanomaterials and Biomaterials Made From Keratin Nanomaterials nanomaterials are a new chemical entity that can be used to make biomaterials and other materials. They have a unique ability for self-assembly and spontaneous form highly ordered material structures with novel mechanical, chemical, and biological characteristics. They have advantages over conventional biomacromolecules in that keratin nanomaterials have a different chemical composition and elicit different responses when in contact with cells and tissues. Tue, 12 Aug 2014 10:07:40 GMTvtippatents@vtip.org Magnetic Field Sensor and Method For Wireless Phasor Measurement Unit Wireless Phasor Measurement Unit (Wireless PMU) includes a coil for magnetic field transduction measurement of phasor data in a transmission line having a widely variable current. The coil output is amplified by a two stage, high gain, selectable gain ratio amplifier that maintains a substantially constant order of magnitude in the amplifier output as the current varies. A digital low pass filter of a third order Butterworth configuration substantially reduces deleterious anomalies appearing in the amplifier output. Shielding is provided to further reduce anomalies. Phasor data is calculated...Tue, 12 Aug 2014 10:07:35 GMTvtippatents@vtip.org LED Driver With Multi-Channel Constant Current CLL Resonant Converter 2-stage LED driver is proposed, which is composed by a Buck converter and a multi-channel constant current CLL resonant converter. The CLL resonant converter is unregulated and is always working at the optimal point to achieve the best efficiency. The current of one specific LED string is sensed for feedback control to tune the duty cycle of Buck converter. The currents of other strings are cross-regulated. This invention is very suitable for multi-channel constant current LED driving, especially because there are differences among the LED numbers for each string. When the loads are unbalanc...Tue, 12 Aug 2014 10:07:31 GMTvtippatents@vtip.org Analysis and Visualization Methods and Systems for Network Security estimate that nearly 25% of computers around the world are infected with malware, resulting in billions of dollars of damages. Stealthy malware residing on compromised machines can spy on the user, exfiltrating sensitive information and documents, abusing system and network resources, and disrupting user activities. Patching and scanning are the first line of defenses against the malware. However, these methods cannot detect new generations of malware (i.e., zero-day exploit) due to the lack of known signatures. Our technology can be used to analyze and monitor large amounts of comput...Tue, 12 Aug 2014 10:07:29 GMTvtippatents@vtip.org For Design of Broadband Low Frequency Piezoelectric Energy Harvester significant impediment in the deployment of vibration-based energy harvesting devices has been the limitation that most of the low frequency transducers, usually in the form of unimorph or bimorph cantilever beams, extract energy in a very narro bandwidth around the transducer's fundamental frequency. In such devices, slight deviation from the fundamental frequency causes a significant reduction in the level of harvested power, in some cases by orders of magnitudes. Additionally, most of the current research efforts in the design of piezoelectric energy harvesters at the microscale have chal...Tue, 12 Aug 2014 10:07:15 GMTvtippatents@vtip.org Printed Low-temperature Sinterable Nanometal Suspensions as a Binding Solution in Rapid Prototyping, 12 Aug 2014 10:06:05 GMTvtippatents@vtip.org Extraction and Analysis of Organic Compounds from Aqueous Environmental Samples and Bodily Fluids invention describes the extraction of organic compounds from the aqueous sample followed by analysis using a micro gas chromatography (uGC) system. The extraction of organic compounds is performed by micro purge extractor (uPE) chip which is hybridly integrated with micro preconcentrator coated with Tenax TA adsorbent which serves as a trap. The uGC column (coated with polydimethylsiloxane as a stationary phase) and an embedded micro thermal conductivity detector (uTCD) are employed for the separation and the detection purpose respectively. The invention can be further extended to monolit...Thu, 03 Jul 2014 11:01:34 GMTvtippatents@vtip.org Barley (Secretariat) Secretariat is a high-yielding, high test weight, moderately early heading, short stature, six-row winter barley having good winter hardiness. The spikes of Secretariat are erect, strap, and slightly waxy with no overlapping lateral kernels and have short awns.Fri, 02 May 2014 07:34:50 GMTvtippatents@vtip.org Advanced Omnidirectional Impact Absorber impact absorber technology is well suited for high performance light weight applications where omnidirectional protection is a critical design requirement. The technology can also be used for unidirection applications with equally high impact performance. This technology offers improved initial compression stiffness, improved crush force efficiency, and a much higher stroke efficiency relative to other high performance designs. The technology is particularly well suited for applications such as helmets and passive earth entry space capsules that require omnidirectional impact protection a...Mon, 28 Apr 2014 05:46:14 GMTvtippatents@vtip.org Antidepressant Compounds (3), 11 Apr 2014 05:48:32 GMTvtippatents@vtip.org Antidepressant Compounds (2), 11 Apr 2014 05:48:31 GMTvtippatents@vtip.org Antidepressant Compounds (1), 11 Apr 2014 05:48:31 GMTvtippatents@vtip.org Segmented CoPolymers Crosslinked By Radiation disclosure describes highly gas permeable, soluble, polyimide-polysiloxane segmented copolymers which can be crosslinked with radiation. The monomers contain benzylic methyl groups and ketones as the crosslinkable moieties. The role of the polysiloxane is to improve the mechanical properties of the otherwise brittle polyimide components so that thin film membranes from the copolymers have robust mechanical properties. The polysiloxane is capable of improving the ductility of the films without altering the permeability and selectivity characteristics desired for separation of carbon dioxid...Tue, 01 Apr 2014 10:42:54 GMTvtippatents@vtip.org Performance Improvement for Constant On Time Control novel method to improve the load transient performance in constant on time (COT) control both in load step up and down is proposed along with its simple circuit implementation. When a large and fast load step up is introduced in COT control, increment of inductor current is limited by the constant on time (Ton) and the minimum off time which is also fixed by the power stage requirement, and eventually will create an undershoot at the output. On the other hand, in case of load step down, if load step is occuring at the beginning of Ton, instead of decreasing, inductor current keeps increasing...Tue, 01 Apr 2014 10:42:54 GMTvtippatents@vtip.org Polysaccharide Derivatives, 01 Apr 2014 10:42:53 GMTvtippatents@vtip.org Powered Medical Device and Water Sterilizer, 01 Apr 2014 10:42:52 GMTvtippatents@vtip.org 5D Micro-CT is the leading cause of death in the developed countries at tremendous social and healthcare costs. Since mice as models of human diseases have been widely used in atherosclerosis research, the goal of this technology-driven project is to develop the most advanced micro-CT tool for imaging of atherosclerosis plaques in live mice. The proposed technology has not only a significant impact on preclinical studies but also a great translational potential for screening and identifying high-risk patients with vulnerable atherosclerosis plaques, which can lead to heart attacks and stro...Tue, 01 Apr 2014 10:42:50 GMTvtippatents@vtip.org Complexes as Photocatalysts for the Production of Hydrogen from Water, 01 Apr 2014 10:40:37 GMTvtippatents@vtip.org Small-Molecule Antidepressants potential antidepressant compounds have a novel mechanism of action – blockade of transporters for the neurotransmitters norepinephrine, serotonin, and dopamine. This novel “triple reuptake blockade” approach holds promise for a more effective and rapidly-acting antidepressant.Tue, 01 Apr 2014 10:40:16 GMTvtippatents@vtip.org Based on Monomers Derived From 4,4'-Dichlorodiphenyl Sulfone, 10 Feb 2014 06:52:41 GMTvtippatents@vtip.org Geometry With Programmed Field Distribution programmed field distribution is leveraged to achieve high magnetic-energy density, leading to inductor geometries with significantly improved space utilization and current rating compared to the conventional inductors. A special case results in programmed field distribution is the constant-flux distribution. Programmed-field distribution is advantageous not only from the density point, but also from the standpoints of efficiency, thermal management, and current rating via the reduction of hot spots and dc resistance according to the comparisons between the programmed-field inductor and co...Mon, 10 Feb 2014 06:52:39 GMTvtippatents@vtip.org Metal Oxides As A Stationary Phase And A Surface Template For Micro Gas Chromatography Separation Columns invention describes a new approach for utilizing atomic layer deposited (ALD) metal oxides as a stationary phase for microfabricated gas chromatography columns. After ALD oxide deposition, a chloroalkylsilane is utilized to deactivate the oxide surface to improve peak symmetry and retention times. Semipacked columns (1m-long, 190 um-wide with 20 um-embedded circular micropillars) were utilized for validation of this newly developed approach. ALD uses self-limiting gas phase chemical reactions for deposition, making it suitable for micromachined columns having very high-aspect ratios. The ...Mon, 10 Feb 2014 06:52:38 GMTvtippatents@vtip.org Separation Membranes Formed By Crosslinking Polyarylene Ethers, 10 Feb 2014 06:52:30 GMTvtippatents@vtip.org Virus B2 Protein-Based Broad Spectrum Antiviral Expression of the Nodamura virus B2 protein in human and mouse cell lines suppresses the accumulation of a unique class of non-coding small RNAs derived from the chikungunya virus genome. Significant decreases in virus replication correlates well with B2-mediated suppression of these non-coding RNAs. We suspect that the non-coding RNAs identified by our studies are similar to short viral leader RNAs (leRNAs) previously identified only in the genomes of negative-strand viruses. leRNAs are believed to be essential to the replication of the negative-strand viruses from which they have been ide...Mon, 10 Feb 2014 06:52:30 GMTvtippatents@vtip.org and Method for Impedance Measurement Using Series and Shunt Injection invention is system architecture and its implementation used to measure impedances online in balanced three-phase systems. The impedance is a useful tool in the work related to small signal system stability. It is beneficial to both system integrators and component vendors. The extracted impedances of system components can be used to assess the system stability before system integration. The impedances measured in system can also be used to debug exisitng system stability problems. Impedance measurement takes several steps: creating perturbation in the system, measurement system response, ...Mon, 10 Feb 2014 06:52:28 GMTvtippatents@vtip.org Control Methodology of Pedestrian Kinematics Using the Active Hood Lift System A method and device for use in pedestrian-vehicular collisions in which an active hood lift system is deployed to a first elevated lift position and maintained at the deployed position for an interval after which it is lowered, thereby controlling pedestrian impact kinetics and reducing forces that can result pedestrian injuries.Mon, 10 Feb 2014 06:51:46 GMTvtippatents@vtip.org Local CT Based on Compressive Sampling A system and method for tomographic image reconstruction using truncated projection data that allows exact interior reconstruction (interior tomography) of a region of interest (ROI) based on the known sparsity models of the ROI, thereby improving image quality while reducing radiation dosage. In addition, the method includes parallel interior tomography using multiple sources beamed at multiple angles through an ROI and that enables higher temporal resolution.Mon, 10 Feb 2014 06:51:44 GMTvtippatents@vtip.org For Therapeutic Targeting Cancer Stem Cells Patients with the brain cancer glioblastoma have about a year to live once diagnosed. Glioblastoma kills quickly as it grows aggressively and patients develop resistance to the anti-cancer drug temozolomide. Studies by a team at Virginia Tech indicate that a protein called Cx43 may hold the key to temozolomide resistance. Our researchers have found that a drug targeting Cx43 dramatically enhances the sensitivity of glioblastoma cancer cells to temozolomide, thereby providing the prospect of a novel combninatorial therapy for this deadly disease.Thu, 06 Feb 2014 11:46:11 GMTvtippatents@vtip.org Screening of Transformed Data Leaks with Efficient Algorithms and Parallel Computing minimize the exposure of sensitive data and documents, an organization needs to prevent cleartext sensitive data from appearing in the storage or communication. We invent a novel data-leak screening tool that can be deployed to scan computer file systems, server storage, and inspect outbound network traffic for exposed sensitive data. The tool searches for the occurrences of plaintext sensitive data in the content. It alerts users and administrators of the identified data expsure vulnerabilities. For example, an organization's mail server can inspect the content of outbound email messages s...Wed, 08 Jan 2014 08:54:18 GMTvtippatents@vtip.org Mechanical Radio Frequency Transmitter, 08 Jan 2014 08:54:17 GMTvtippatents@vtip.org Software incorporates state-of-the-art algorithms and computationally efficient parallel processing to develop a 'curved regular grid' of terrain surface data, delivered in a number of useful formats that can be read directly into vehicle simulation software (CRG, RGR, RDF), and runs on either Windows of LINUX platforms. CloudSurfer generates this gridded data based on a center path along the road that is either generated automatically or prescribed by the user and additional alternate paths can also be generated. Wed, 08 Jan 2014 08:54:06 GMTvtippatents@vtip.org Interleaving Structure With Adaptive PLL Loop For Constant On-Time Switching Converter simple interleaving method is propsed to improve transient response and remain pseudo constant frequency for constant on-time controlled multi-phase switching converters. Currently, pulse distribution and PLL methods are used for interleaving. Former is simple, but is noise-sensitive under current ripple cancellation. Besides, the transient response is limited by adding external ramp for noise issue and by inability to synchronize duty cycle. Latter is less noise-sensitive and allows duty cycle overlapping for faster response. However, the PLL loop in each phase is difficult to optimize unde...Thu, 19 Dec 2013 10:39:45 GMTvtippatents@vtip.org Internal Switching Loss in Cascode Structure Device Under Soft-Switching Condition innovation presents a universal method to prevent cascode structure device achieves avalanche during turn-off period, and avoid the internal switching loss of the device during soft-switching period by optimizing the internal charge balance condition. It can be easily implemented and suitable for integration and mass production. Thu, 19 Dec 2013 10:39:45 GMTvtippatents@vtip.org Control For The Modular Multi-Level Converter new control approach provides an operation mode on which the module capacitor ripple of the modular multilevel converter (MMC) can be reduced to roughly 10% of conventional design. This means that the capacitance value of the converter can be reduced to 10% of original design if meeting the same design criteria. The capacitor rated current is also decreased. At the same time, the arm inductance value is also decreased to about 10% of original design. Both of the benefits can greatly reduce the cost for capacitors and inductors to about 5% or even lower as well as reduce the mechanical siz...Thu, 19 Dec 2013 10:39:44 GMTvtippatents@vtip.org Variant Antennas for Antenna Direct Modulation invention is a method that enables transmiting a wideband signal from a small antenna. Applications are far reaching and include making impanted transmitters feasible for medical applications.Thu, 19 Dec 2013 10:39:41 GMTvtippatents@vtip.org Imageable Catheters for Intervenous Delivery and Sampling In Patients, 14 Nov 2013 13:07:38 GMTvtippatents@vtip.org Polysaccharide Derivatives and Process for Making Them, 14 Nov 2013 13:06:59 GMTvtippatents@vtip.org Biocontrol of Invasive Noxious Poison Ivy, 14 Nov 2013 13:05:34 GMTvtippatents@vtip.org of Bonding Woody Material without Additives, 14 Nov 2013 13:05:07 GMTvtippatents@vtip.org Spectrum Access and TRANSEC Through A Repeater and Frequency Translator invention provides a repeater system for testing communications links (using existing equipment) on new frequencies and for implementing frequency agility for Long Term Evolution (LTE) and adding an additional layer of TRANSEC. A repeater is placed on each end of the communications link to translate the signals from the original frequency to the desired new frequency. A novel baseband processing system allows for filtering, control, and modification of signal characterstics to facilitate frequency sharing algorithms and transmission security. LTE, LTE-Advanced and other modern transmission...Thu, 14 Nov 2013 13:05:06 GMTvtippatents@vtip.org Device for Chromatin Immunoprecipitation, 14 Oct 2013 11:35:34 GMTvtippatents@vtip.org Targeting Device Applied to Interlocking of Distal Intramedullary Nail Screw Holes novel method and device for targeting objects and specifically for locating intramedullary screw openings. See US Patent 7,753,913Thu, 10 Oct 2013 06:49:01 GMTvtippatents@vtip.org Miniaturized Helium Photoionization Detector is a technique to miniaturize a Helium Photo-ionization Detector using silicon micromachining resulting in a dimension less that 2cm x 1cm x 2mm. This is suitable for universal, sensitive yet non-destructive gas sensing. Unlike its universal counterpart, the Thermal Conductivity Detector, this consumes less power (just 1.4mW) and is more stable to ambient temperature, making it well-suited for portable systems.Thu, 26 Sep 2013 07:23:32 GMTvtippatents@vtip.org for Achieving Network-Level Quality of Service in Mobile Broadband Networks Operating in A Shared Network Environment achieving a required level of quality of service (QoS) in a mobile broadband network implementing the Long Term Evolution (LTE) standard where the network must support preemption by specific classes of users operating on the same network, such as public safety or national security users of the commercial cellular network infrastructure.Wed, 11 Sep 2013 08:15:55 GMTvtippatents@vtip.org for Increasing Efficiency in Mobile Broadband Networks by Reducing Traffic Variations for making mobile broadband networks more efficient by reducing the variability of the offered traffic load.Mon, 09 Sep 2013 11:27:16 GMTvtippatents@vtip.org for Meeting Spectrum Sharing Constraints Within Mobile Broadband Networks Method that allows base transceiver station (BTS) and base station controller (BSC) and equipment implementing the Long Term Evolution (LTE) and LTE-Advanced standards to implement external, time-varying constraints of spectrum access.Mon, 09 Sep 2013 10:01:10 GMTvtippatents@vtip.org for Achieving Network-Level Quality of Service in Mobile Broadband Networks Operating in A Shared Spectrum Environment Method achieving a required level of quality of service (QoS) in a mobile broadband network implementing the Long Term Evolution (LTE) standard where the network must support preemption by external users of the electromagnetic spectrum.Mon, 09 Sep 2013 10:01:08 GMTvtippatents@vtip.org For The Use of Geo-Reference Databases and Spectrum Sensing For Heterogeneous Spectrum Sharing In Mobile Broadband Networks whereby georeference databases can be used in conjunction with spectrum sensing to support coexistence of communications, remote sensing, radio navigation, and other uses of the electromagnetic spectrum.Mon, 09 Sep 2013 10:01:05 GMTvtippatents@vtip.org Novel and Advanced Nano Adjuvant for Vaccines Eliciting Antibody Responses, 23 Aug 2013 06:20:44 GMTvtippatents@vtip.org Quantitative Measures of Natural Selection for Rational Protein Engineering invention utilizes quantitative metrics of molecular evolution to define effectively mutable protein space that can be targeted in rational protein engineering enterprises focused on improving protein function and/or altered relatedness to proteins protected by pre-existing competing patents. The core technology is to use quantitative metrics of natural selection to define "effectively mutable protein space" and thereby greatly improve the efficiency of targeted protein engineering enterprises by greatly reducing the sites for directed mutagenesis. This enabling technology is suitable for...Fri, 23 Aug 2013 06:20:40 GMTvtippatents@vtip.org and Method for Impedance Measurement Using Chirp Signal Injection invention is an algorithm used to measure impedances in balanced three-phase systems. The impedance is a useful tool in the work related to small signal system stability. It is beneficial to both system integrators and component vendors. The extracted impedances of system components can be used to assess the system stability before system integration. The impedances measured in system can also be used to debug existing system stability problems. Impedance measurement takes several steps: creating perturbation in the system, measurement system response, and calculating system impedances. Th...Mon, 15 Jul 2013 10:34:49 GMTvtippatents@vtip.org AUV Shepherd Autonomous Underwater Vehicle (AUV) is a fully autonomous underwater vehicle that is designed for general survey missions. Its design allows the use low friction dynamic seals to prevent catastrophic failure at higher depths.Mon, 15 Jul 2013 10:34:43 GMTvtippatents@vtip.org Extraction of Acid Gas From Flue Gases post-combustion carbon capture systems represent a proven technology for decreasing carbon emission from coal-fired power plants and other high-emission operations. This invention represents the latest in a long line of research to design better and more energy-efficient carbon capture systems. We introduce both capital cost-neutral modifications which significantly reduce energy costs as well as new process equipment which can cut energy costs in half.Mon, 15 Jul 2013 10:34:42 GMTvtippatents@vtip.org Integrated Point-of-Load (POL) Module with PCB Embedded Inductor Substrate innovation presents the high frequency integrated Point-of-Load (POL) module with PCB embedded inductor substrate. First, the high density and low profile inductor structure is proposed so that the magnetic core can become a thin enough layer to be sandwiched into multi-layer PCB. Then the magnetic layer is embedded into PCB just following conventional industrial process. The four-layer PCB and DrMos power devices are used to build the integrated POL module which is very simple and cost effective. The standardized manufacturing process further reduces the cost and enables the mass product...Mon, 15 Jul 2013 10:34:40 GMTvtippatents@vtip.org and Methods for Fast Quasi-Exact Triple-Source Helical Cone-Beam CT computed tomography (CT) has been improved over past years, but it still needs improvement for higher temporal resolution in the cases of high or irregular cardiac rates. Given successful applications of dual-source cardiac CT scanners, triple-source cone-beam CT seems a promising mode for cardiac CT.Wed, 03 Jul 2013 11:52:24 GMTvtippatents@vtip.org Ether Omega-Carboxyalkanoates for Drug Delivery and Coatings Applications polymers based on abundant, renewable cellulose, that are prepared by a highy practical process and that have outstanding organic solubility, compatibility with other polymers and with active small molecule species, and can be readily dispersed in water. They have outstanding promise in drug delivery (enhancing solubility of poorly soluble drugs), controlled release, and waterborne coatings applications.Mon, 20 May 2013 09:17:15 GMTvtippatents@vtip.org Tilt Sensor and Turning Mechanism, 09 May 2013 11:59:17 GMTvtippatents@vtip.org Constant Current LED Driver with Coupled Inductor (CIP of VTIP 10-095) future LED drivers should be suitable for changeable LED numbers and changeable LED strings. Meanwhile, it should keep high efficiency while having a wide range dimming. Thus, a two-stage structure is proposed based on previous invention (VTIP 10-095). The second stage converter is always operating on an optimally designed point to achieve the best efficiency. The first stage converter is regulated to obtain the required dimming with different LED numbers and different LED strings.Thu, 09 May 2013 11:59:04 GMTvtippatents@vtip.org Control with Capacitor Current Ramp Compensation Using Self-Calibrated Lossless Capacitor Current Sensing, 09 May 2013 11:57:58 GMTvtippatents@vtip.org Wall - Architecture 5 IP relates to an innovative wall system for pre-finished panel installation which includes a stud and floor/ceiling track which index each other for precise stud location. A tab and slot design between the track and stud assures exact alignment. A horizontal cleat which receives an indexed slot in the back of the prefinished panels is inserted into pre indexed slots in the vertical stud. This system allows panels and modular systems such as bookcases and cabinets to be installed on the face of the wall or into the depth between two studs as well. This is a versatile system which guarantee...Fri, 19 Apr 2013 13:58:42 GMTvtippatents@vtip.org HG Blanket I Active and passive noise reduction control techniques are used to reduce and/or control vibrations and accompanying sound radiation in vibrating bodies. In many instances, active noise reduction techniques are costly and involve complex control systems; passive noise reduction techniques are often bulky and not as effective. This novel invention provides a distributed active vibration absorber, and a distributed passive vibration absorber, to effectively control vibration and acoustic sound using an elastic layer of thermal or insulation material in which a plurality of discrete masses are di...Fri, 19 Apr 2013 13:57:34 GMTvtippatents@vtip.org Coating Process for Biological Agents process that we are describing provides for coating biological control agents such as entomopathogenic spores in a closely controlled environment. It is designed to minimize the potential detrimental effects of hydration and dehydration of the agents which may reduce their field use efficacy and storage shelf life. The process should prove to be scalable from laboratory production for experimentation to producing large quantities economically for commercial sale.Mon, 25 Mar 2013 11:59:24 GMTvtippatents@vtip.org Coating for Corrosion Protection of Metallic Structures This invention is a novel two-step electrodeposition technique to fabricate superhydrophobic metallic coatings. The method has been demonstrated with a superhydrophobic copper coating with multiscale surface features. A thermodynamic model has been developed which supports extending this invention to other metals.Fri, 14 Dec 2012 11:15:43 GMTvtippatents@vtip.org Plate Assembly for Stator Laminations use of dimples to enhance heat transfer is well known from the heat transfer literature. This invention attempts to apply it to a generator stator. The stator duct is a passage in the lamination through which the coolant flows. The stator core is made up of a series of magnetic laminations stacked together. The features can be optimized for maximum heat transfer and least pressure drop increase. Dimples can be optionally placed on the opposite thinner lamination. Another embodiment is to create a passage with thicker lamination with dimples on both sides. Fri, 14 Dec 2012 11:13:54 GMTvtippatents@vtip.org Square Ring Slot Antenna with Reconfigurable Polarization invention is directed to an antenna with reconfigurable polarization, and more particularly, to an antenna having a perturbed square ring slot configuration for operating in multiple polarizations. Polarized (CP) antennas are popular choices in mobile wireless communications applications owing to their ability to allow flexible orientation between the transmitter and receiver antennas and to reduce multipath effects that can lead to signal fading. The ability to efficiently operate with both sense of CP (LHCP and RHCP) allows the system to reuse frequencies and double the system capacity. ...Fri, 12 Oct 2012 07:58:16 GMTvtippatents@vtip.org Peanut PeanutTue, 09 Oct 2012 14:28:21 GMTvtippatents@vtip.org Barley (Thoroughbred), 09 Oct 2012 14:27:31 GMTvtippatents@vtip.org Dual-orthogonal-polarization Antenna The invention disclosed in this document is a dual-band antenna element in which each band can simultaneously operate with two orthogonal senses of circular or linear polarization. The dual-band nature of this element stems from the presence of two separate radiating structures. The antenna engineer has flexibility over the dimensions selected for this element which, in turn, provides flexibility over the frequency ratio between the two bands. The low band radiating element is a shortened square ring antenna element utilizing a novel capacitive loading technique for size reduction; the high b...Wed, 03 Oct 2012 10:54:50 GMTvtippatents@vtip.org Power System With High-Density Pulse Width Modulated (PWM) Rectifier present invention provides a single phase Pulse Width Modulated (PWM) rectifier for providing power to a direct current (DC) load that may have an increased power density relative to previous systems.Mon, 24 Sep 2012 08:51:56 GMTvtippatents@vtip.org Shielding Technique for Common Mode Noise Reduction in Isolated Converters innovation presents a universal method to reduce the common mode noise in isolated converters by eliminating the noise path in the inter-winding capacitor of the transformer. It is suitable in both typical winding transformers and PCB winding transformers. This innovation also provides a method to reduce common mode noise using balance concept. This method can easily control the parasitic capacitance that is suitable for mass production.Fri, 21 Sep 2012 11:59:58 GMTvtippatents@vtip.org System, Demountable Structural System, Stackable Construction System This invention presents a unique modular building system that is quick and easy to assemble, requires few or no tools, and is just as easily dissembled. Current constructive systems using panels of sheet material and specialized connectors or brackets are typically difficult and time consuming to assemble. Further, constructive systems that allow quick and simple assembly often lack quality and/or strength. This invention provides planar members and moment connections joined in a manner that provides a rigid supportive structure. The unique connection allows the surface to appear continuous ...Fri, 21 Sep 2012 11:55:32 GMTvtippatents@vtip.org Fiber ability of superconductor materials to conduct electricity with nearly zero resistivity is well known, but limitations such as the requirement for extremely low operation temperatures has limited the realization of this potential. The "superconducting optical fiber" takes advantage of pre-existing technologies and manufacturing techniques to allow for efficient cooling of the superconductor core with an extremely small footprint. The basis fiber structure includes a superconductor core, holes displaced around the core for the encapsulation of liquid nitrogen, and outer glass cladding. This...Thu, 20 Sep 2012 05:56:57 GMTvtippatents@vtip.org Detection Using Phase-Locked-Loop Small-Signal Instability For Three-Phase Power Inverters simple and effective anti-islanding detection is required to meet IEEE standard 1547 for every distributed generation unit. Many research papers and patents work on this issue, and there exists lots of solutions. All the existing solutions suffer the complicated design and lots of implementation procesess. Some of them tend to destabilize the grid or violate the other standards, such as low-voltage ride-through (LVRT) requirements. Two anti-islanding detection algorithms in three-phase distributed generation unit are proposed in this patent application. Both methods utilize the phase-locked-...Thu, 20 Sep 2012 05:56:56 GMTvtippatents@vtip.org Average Current Mode Control of Switching Converters this invention, the I2 control average current mode is proposed. The conventional constant frequency average current mode control is a widely used control scheme for the converters requiring precise current control, but its transient response is relatively slow, while the switching loss and driving loss significantly diminish the light load efficiency. In this invention, by combining the fast direct current feedback and integral feedback, the I2 control achieves both high bandwidth and accurate current control. As a particular embodiment of this concept, by adopting constant on-time modulat...Thu, 20 Sep 2012 05:56:50 GMTvtippatents@vtip.org Analysis Suite (STASU) for DC and Three-Phase AC Electrical Power Systems comprehensive analysis toolset is developed for addressing the system stability at alternating-current (AC) and direct-current (DC) electrical interfaces from test and simulation results of small-signal dq and DC impedances. The software tool also includes Graphical User Interfaces (GUI) to facilitate fast and flexible data visualization and analyses. From the dq impedance data (either measured or simulated), AC stability is assessed using the Generalized Nyquist Criteria (GNC) or a simpler formulation of GNC. Similarly, from the DC impedance data, stability is assessed using the Nyquist cri...Thu, 20 Sep 2012 05:56:45 GMTvtippatents@vtip.org Processing Method for Grain-Oriented Lead-Free Piezoelectric Na0.5Bi0.5TiO3-BaTiO3 Ceramics Exhibiting Giant Performance to the toxic nature of lead-based piezoceramics, there is a push for lead-free piezoelectric materials. However, these possess weaker desirable responses and are more difficult to grow as a singlular crystal, although the introduction of texturing slightly improves the properties. Virginia Tech has developed a novel way to produce lead free piezoceramics that are highly textured and exhibit greatly enhanced properties over the current model. Due to the method by which the materials are created, they produce a 200-300% increase in desirable traits of piezocermaics, such as the magnetocoupli...Thu, 20 Sep 2012 05:56:44 GMTvtippatents@vtip.org<![CDATA[Ranking Organizations Academically & Rationally (ROAR)]]> this invention disclosure, we describe a novel measurement methodology to rank organizations based on their academic outputs that are assessed by citations and the order of publishing organizations on any relevant publication. This approach is believed to be the fairest in a strict mathematical sense. The resultant methods, software and systems can be used to rank of universities and their departments, and also applied in other similar areas.Thu, 20 Sep 2012 05:55:37 GMTvtippatents@vtip.org Magnetite-Containing Anti-Retroviral Therapy (SMART) Nanoparticles invention is an approach for the delivery of anti-viral drugs in the form of dispersed nanoparticles. The invention consists of magnetite-polymer complexes with well-defined compositions, narrow size distributions, colloidal stability in physiological media, and transverse relaxivities comparable to or better than those of commercially available magnetite-based contrast agents. These polymer nanoparticle systems are referred to as small magnetite-containing anti-retroviral therapy (SMART). The magnetite nanoparticles incorporated into the SMART make it possible to track the nanoparticles ...Thu, 20 Sep 2012 05:55:23 GMTvtippatents@vtip.org Textured Piezoelectric Ceramics multilayer devices (for example, multilayer actuators) require materials with high electromechanical properties. By combining the TGG method with low-temperature cofiring ceramics (LTCC) techniques, we successfully co-fired textured piezoelectric ceramics materials that have silver inner electrodes and high electromechanical properties. Using silver alleviates the need for using Pt/Pd. These multilayer textured piezoelectric ceramics have significantly enhanced electromechanical performance when compared to non-textured ceramics. This material seems promising for use in applications ...Thu, 20 Sep 2012 05:55:19 GMTvtippatents@vtip.org Pest Management Computer Application, 20 Sep 2012 05:54:55 GMTvtippatents@vtip.org Electrospun Fibers Containing Micro and Nanolayers electro-spinning is a process that is used to produce nanofibers and they have been evaluated for applications in filtration, protective clothing, drug delivery, tissue engineering, sensors and nanocomposites. Solution electro-spinning is not an attractive large-scale manufacturing option from an environmental or safety stand-point. We have developed a novel approach at Virginia Tech that is solvent-free to create microfibers that contain alternating nanolayers, by combining layer multiplying and melt blowing technologies. This approach allows us to obtain nonwoven webs that have hund...Thu, 20 Sep 2012 05:54:37 GMTvtippatents@vtip.org for Achieving Spectrum-Tunable and Uniform Attenuation in Earplug invention comprises a non-electric, passive method and device for establishing a spectrally-tunable attenuation profile, including most notably a near-flat or uniform attenuation profile, for an ear insert device, such as an earplug used for protecting the ear against the harmful effects of noise. As such, as compared to conventional passive hearing protectors, the invention affords improved hearing of sound frequency cues in noise, with little or no distortion of the pitch balance. This is accomplished without the requirement of complex damping networks, resonators, or valving. Furthermo...Thu, 20 Sep 2012 05:54:18 GMTvtippatents@vtip.org for Manufacturing Textured PZT Piezoelectric Ceramics, 20 Sep 2012 05:53:50 GMTvtippatents@vtip.org Bi-Directional Single-Phase Converter with DC-Link Capacitor Reduction is well-known that single-phase ac-dc conversion requires a bulky dc-link capacitor for filtering the ripple power from the grid, thus leading a overall bulky converter size. Also, in order to interface a dc renewable energy system to a single-phase utility grid, bi-directional power flow control and dc-bus voltage regulation are major concerns. Many methods have been proposed to reduce the dc-link capacitor value, such as adding extra phase-leg to absorb the ripple power into inductor or capacitors. However, all methods cannot well maintain the dc-bus voltage ripple very well when reduce t...Thu, 20 Sep 2012 05:53:31 GMTvtippatents@vtip.org Frequency Loss Measurement Methods for Inductors and Transformers Inductor and transformer losses are always important concerns for power electronics applications. The converter is less efficient without proper magnetic cores. Point-of-load (POL) converters are pushing for higher switching frequency for integration purposes. Accurate measurements of the loss of these passive components are important to their design. Accurately measuring the magnetic loss in high frequency magnetic materials is an important and urgent problem for materials science research. In this invention, different kinds of measurement methods are proposed to accurately measure the core ...Thu, 20 Sep 2012 05:53:04 GMTvtippatents@vtip.org Peanut (VT 9506083-3), 20 Sep 2012 05:52:32 GMTvtippatents@vtip.org Hulless Winter Barley (Dan), 20 Sep 2012 05:51:47 GMTvtippatents@vtip.org EMI Noise Separator mode (CM) and differential mode (DM) components of multi-phase conducted electromagnetic interference (EMI) noise emanating from electronic circuits such as power converters/inverters are separated by respective coupled inductors connected to each phase of three or more phases and which are coupled to each other differently for CM and DM noise of the respective phases. the inductors of the DM separation unit are coupled such that a substantially ideal zero impedance is presented to DM noise which a high impedance is presented to CM noise. Conversely, the inductors of the CM separation u...Thu, 20 Sep 2012 05:51:46 GMTvtippatents@vtip.org Multi-Element Resonant Converters, 20 Sep 2012 05:50:58 GMTvtippatents@vtip.org Catalytic Pyrolysis and Protein Adhesives Production from Biomass, 20 Sep 2012 05:50:32 GMTvtippatents@vtip.org Solvents for Ionic Polymer Transducer, 20 Sep 2012 05:48:51 GMTvtippatents@vtip.org Barley (Doyce), 20 Sep 2012 05:48:42 GMTvtippatents@vtip.org Reduced Search Joint Detection for Overloaded Array Processing, 20 Sep 2012 05:47:39 GMTvtippatents@vtip.org of Photon-Integrating/Counting Detector Moduli for Spectral CT detection technology can be categorized into two groups: energy-integration and photon-counting. Almost exclusively, all current x-ray scanners use energy-integrating detectors where electrical signals, from interactions between an x-ray beam and materials, are accumulated over an entire spectrum. In contrast, photon-counting detectors recognize photons both individually and spectrally. The advantages of photon-counting detectors are evident relative to energy-integrating detectors. First, photon-counting detectors record spectral responses of materials that are invisible to energy-integ...Fri, 14 Sep 2012 05:51:50 GMTvtippatents@vtip.org Synthesis of Regioselectively Substituted Cellulose Esters ability to make cellulose esters with a high degree of control over the position of substitution is a very difficult problem in organic chemistry, polymer science, analytical chemistry, and materials science. The availability of efficient ways to make highly regioselectively substituted cellulose esters will enable structure-property studies that identify optimal material performance in particular applications, supply the materials to deliver that optimal performance, and facilitate the understanding of analytical characteristics of particular cellulose ester regioisomers that will enable ...Fri, 14 Sep 2012 05:50:41 GMTvtippatents@vtip.org Storage for PFC by EV Motor/Generator size of dc-bus capacitor is the key contributor for the volumes of PFC and battery charger, whose important characteristics is the 2nd order low-frequency ripple power on the dc bus. The motor in an electric vehicle can be used to store the ripple power, thus significantly reducing the size of the dc-bus capacitor. Thanks to EV's already available power electronics system, control of the motor/generator inductor current is feasible without employing an extra converter. A digital controller is used to regulate the converter by using PWM, resulting in small volume, low noise and high power d...Fri, 14 Sep 2012 05:50:37 GMTvtippatents@vtip.org Detection Algorithm and Modeling Approach for Three-Phase Distributed Generation Unit simple and effective anti-islanding detection is required to meet IEEE standard 1547 for every distributed generation unit. Many research papers and patents work on this issue, and there exists lots of solutions. All the existing solutions suffer the complicated design and lots of implementation processes. Some of them tend to destabilize the grid or violate the other standards, such as low-voltage ride-through (LVRT) requirement. Two anti-islanding detection algorithms in three-phase distributed generation unit are proposed in this patent application. Both methods utilize the phase-locked l...Fri, 14 Sep 2012 05:50:25 GMTvtippatents@vtip.org Compensation Estimator, 14 Sep 2012 05:50:24 GMTvtippatents@vtip.org for Poly-Functional Adaptive Traction Control invention is a novel adaptive method for controlling traction in a ground vehicle using low-cost sensors. This control strategy was developed with the intention of improving upon the approach that an expert human driver takes when they develop a subjective "feel" for the road. In addition to having higher performance than conventional traction control, the proposed adaptive traction control method also provides real-time estimates of key properties of the tire-ground interface, which can be used for terrain characterization and path planning in autonomous or semi-autonomous vehicles.Fri, 14 Sep 2012 05:50:04 GMTvtippatents@vtip.org Leakage Current Reduction for Single-Phase Full-Bridge Converter switching-frequency dc leakage current issue exists in the single-phase full-bridge topology with the unipolar modulation switching scheme. It is important to reduce the leakage current, which has a negative impact on the solar panels. With the emerging market on solar inverter, there are lots of patents filed by different companies on solving this issue. The examples are seen in H5 inverter, HERIC inverter, and etc. In this invention, a simple passive solution is proposed to effectively reduce the dc leakage current. A common-mode choke and a pair of split differential-mode capacitors for...Fri, 14 Sep 2012 05:49:50 GMTvtippatents@vtip.org Microneedle Device for Convection-Enhanced Thermochemotherapy of Malignant Glioma invention allows diffuse convection-enhanced delivery of chemotherapy to tumors unreachable by direct surgical intervention. The device employs simultaneous co-delivery of fluid agents and laser energy at multiple infusion points to improve coverage of tumor margins. Previous similar methods have recently failed to meet clinical endpoints in Phase 3 FDA trials due to insufficient tumor coverage. This problem is caused by the differing hydraulic conductivities found in various cerebral structures, causing preferential fluid diffusion down certain pathways and insufficient fluid penetration...Fri, 14 Sep 2012 05:49:32 GMTvtippatents@vtip.org Active Neutral-Point-Clamped Zero-Voltage Switching Converter Using Coupled Magnetic Circuit, 14 Sep 2012 05:49:25 GMTvtippatents@vtip.org Enhancement of Flavonoid Compounds with Beneficial Medical Properties and non-toxic methods for enhancing the water solubility and bioavailability of flavonoids such as resveratrol and curcumin, which are known to have beneficial health effects. Higher bioavailability will allow for easier clinical testing of health benefits and dose-response studies, and will enable administration of smaller and less frequent doses to achieve the desired health effect. Fri, 14 Sep 2012 05:49:04 GMTvtippatents@vtip.org Resonant Power Conversion, 14 Sep 2012 05:48:51 GMTvtippatents@vtip.org and 4-Chloro-Nitro-Thiazolide Tuberculosis Therapeutics, 14 Sep 2012 05:48:48 GMTvtippatents@vtip.org Integrated Method and System for Full-field Strain Measurement and Material Constitutive Characterization on Uniaxial Testing Machine This technology offers an integrated analytical, numerical, and computational methodology and hardware system which enables high-fidelity, full-field displacement and strain measurement along with constitutive material characterization of material specimens. Using an innovative, digital imaging based, meshless, random grid method; the present invention offers improved accuracy and reliability over existing methods for boundary displacement and strain measurement. Additionally, this technology advantageously enables accurate material characterization. Further, the development of a hardware sy...Fri, 14 Sep 2012 05:48:47 GMTvtippatents@vtip.org and Algorithm Evaluation Work on Detection of Distraction, Impairment or Fatigue in Time-series Vehicle Data refined, yaw-based analytical system to detect driver distractionFri, 14 Sep 2012 05:47:52 GMTvtippatents@vtip.org On-Time Control for PFC Light Load Efficiency Improvement load efficiency of a power factor correction circuit is improved by adaptive on-time control and providing for selection between a continuous conduction mode and a discontinuous conduction mode wherein the discontinuous conduction mode increases time between switching pulses controlling connection of a cyclically varying voltage to a filter/inductor that delivers a desired DC voltage and thus can greatly reduce the switching frequency at light loads where switching frequency related losses dominate efficiency. the mode for controlling switching is preferably selected for each switching p...Fri, 14 Sep 2012 05:47:46 GMTvtippatents@vtip.org Wheat (Merl), 14 Sep 2012 05:47:42 GMTvtippatents@vtip.org Wheat, 14 Sep 2012 05:46:17 GMTvtippatents@vtip.org Electronic Ballast with Dimming Control, 14 Sep 2012 05:44:17 GMTvtippatents@vtip.org Methods and Systems Based on Stationary Sub-Systems, 13 Sep 2012 07:25:04 GMTvtippatents@vtip.org Positioned Tilting Pad Bearing, 13 Sep 2012 07:23:44 GMTvtippatents@vtip.org Inductor-Less Resonant Converters with Auto Transformer, 11 Sep 2012 14:30:09 GMTvtippatents@vtip.org Drug and Vaccine Target for Malaria, 11 Sep 2012 14:29:18 GMTvtippatents@vtip.org Fault Diagnosis Tool, 11 Sep 2012 14:29:04 GMTvtippatents@vtip.org Mapping and Resistance Gene Association in Soybean, 11 Sep 2012 14:29:01 GMTvtippatents@vtip.org Wheat (Roane) new wheat variety publicly released by the Virginia Agricultural Experiment Station (VAES). Further information may be obtained from the Virginia Crop Improvement Association (VCIA). Tue, 11 Sep 2012 14:27:09 GMTvtippatents@vtip.org Laser/Vision-Based Underwater Distance Measuring Unit Laser/Vision-Based Underwater Distance Measuring Unit is a low cost sensor designed to determine the relative distance to unknown objects in underwater environments. The sensor is designed to (and for) use in underwater environments when the use of acoustic-based measurement sensors is not feasible either due to price or the underwater environments whose physical layouts make acoustic sensors unreliable. Some underwater environments where this sensor could be beneficial are enclosed underwater caves, large enclosed underwater structures such as shipwrecks, and working environments where bo...Wed, 05 Sep 2012 13:20:54 GMTvtippatents@vtip.org Trajectory Control of LLC Resonant Converter for LED PWM Dimming this invention, a novel PWM dimming solution for the LED lighting is proposed. With the PWM dimming control, the LED intensity is controlled by the ratio between the on-time and off-time of the PWM dimming signal. When the PWM dimming is on, the LLC resonant converter operates under the full load condition. To eliminate the dynamic oscillation when the LLC resonant converter starts to work from the idle status, the pulse pattern of gate driving signal is optimized based on the state-trajectory analysis. With the help of the optimal trajctory control, the full-load steady state is settled wi...Wed, 05 Sep 2012 13:20:41 GMTvtippatents@vtip.org Trajectory Control of LLC Resonant Converter for Soft Start-Up this invention, the optimal control of LLC resonant converter for the soft start-up is proposed. Several control approaches are invented to settle the initial condition at the start-up moment based on the state-trajectory analysis. During the soft start-up process, the current limitation band is set. The optimal frequency is determined with the current band by graphic analysis. Meanwhile, the physical switching instant could also be detected by sensing the resonant converter. As a result, there is no current and voltage stress in the resonant tank during the soft start-up.Wed, 05 Sep 2012 13:20:33 GMTvtippatents@vtip.org Ramp Autotuning for Current Mode Control of Switching Converter this invention, a novel external ramp autotuning solution for the current mode control of switching converters is proposed. Conventionally, using fixed external ramp needs to be based on the worst-case condition, while prior adaptive ramp compensation strategies cannot adapt to component tolerance and topology change. Therefore, using either approach, the overall performance suffers from over compensation. Tuning external ramp slope to track the constant quality factor of double pole at half of switching frequency is proposed, and then stable and wide bandwidth performance over all possible...Wed, 05 Sep 2012 13:20:32 GMTvtippatents@vtip.org Input Voltage Control and Output Power Maximum Power Point Tracking (MPPT) for Sub-Panel Converters with Series Outputs invention proposes a simplified control strategy for sub-panel converter with series outputs. With the proposed control only one set power sensor is needed for the sub-panel converters in an independent panel, and the cost of the maxinum power point tracking (MPPT) controllers and sensors can be reduced. While the maximum power of the panel is almost same to the discrete MPPT control strategy, who has an independent MPPT controller and sensors for each sub-panel converter in an independent panel. Wed, 05 Sep 2012 13:20:30 GMTvtippatents@vtip.org Algorithm and Implementation System Architecture for the Measurement of Impedances in the D-Q Frame Domain, 05 Sep 2012 13:19:35 GMTvtippatents@vtip.org Stability Criterion for AC Power System Interfaces Feeding Three-Phase High-Power Factor Rectifiers, 05 Sep 2012 13:19:34 GMTvtippatents@vtip.org Properties of Amino Acid Complexes of the Later Transition Metals resistant strains of bacteria are more frequently reported and present an immediate and severe danger to many people. New manners of fighting these infections are being sought, with several particularly promising compounds being developed at Virginia Tech. The creation of transition metal complexes with effective anti-microbial properties and the properties of these compounds to further develop more complexes have been demonstrated. These compounds provide improved methods of treating resistant bacteria, which will decrease the mortality rate of those infected.Wed, 05 Sep 2012 13:19:21 GMTvtippatents@vtip.org and Erase Operations of a Floating Electrode Bi-resistive Device Using Compliance Current Constraint, 05 Sep 2012 13:19:08 GMTvtippatents@vtip.org Autonomous Underwater Vehicle, 05 Sep 2012 13:18:57 GMTvtippatents@vtip.org Technique for Synchronized Dynamically Obscured Addresses in IPv6 The Moving Target IPv6 Defense (MT6D) dynamically obscures network and transport layer addresses of packets to achieve anonymity, including authentication privacy, as well as protection against address tracking and traffic correlation. MT6D is an improvement over prior static approaches where, once they have been assigned, addresses remain constant until a network session is terminated. Additionally, it protects against certain classes of network attacks including but not limited to address-based denial of service, replay, session hijacking, and man-in-the-middle attacks. MT6D also enables a ...Wed, 05 Sep 2012 13:18:47 GMTvtippatents@vtip.org Exposure Patterning in a Single Photoresist Layer, 05 Sep 2012 13:18:41 GMTvtippatents@vtip.org Based Supramolecular Complexes as Photocatalysts for H2 Production from Water: Solar H2 Production, 05 Sep 2012 13:16:41 GMTvtippatents@vtip.org Targets for Fungal-Associated Respiratory Disorders, 05 Sep 2012 13:16:17 GMTvtippatents@vtip.org Laminate Composite Type Magnetic Field and Electric Current Sensors Operated in the Longitudonal-Longitudonal (L-L) Mode, and Longitudonal-Tranverse (L-T) Mode, 05 Sep 2012 13:14:49 GMTvtippatents@vtip.org Fiber Sensors Based on Pressure-Induced Temporal Periodic Variations in Refractive Index or Fiber Geometry invention is about a sensor for self-calibrating measurement of pressure and temperature. Wed, 05 Sep 2012 13:14:28 GMTvtippatents@vtip.org Hulless Winter Barley (Atlantic) ('Atlantic') Hulless Winter BarleyMon, 03 Sep 2012 08:24:40 GMTvtippatents@vtip.org Method for Synthesizing Multiple Command Signals to Cause Multiple Response Signals to Match a Desired Target Vehicle test rigs are typically used to analyze dynamic motions of a vehicle and/or suspension component in order to design the optimal setup. These systems require the development of a drive file, which is a synchronized batch sequence of dynamic time-series commands that define the forces or displacements that should be achieved by the actuators. Most available systems are based on frequency domain algorithms; such algorithms assume linearity in the dynamic system to avoid difficulty converging to an acceptable reproduction of the motion when the vehicle dynamics are nonlinear. Often, such ...Mon, 03 Sep 2012 08:24:12 GMTvtippatents@vtip.org Constant Current LED Driver with Coupled Inductor, 03 Sep 2012 08:23:53 GMTvtippatents@vtip.org Enhanced V2 Control, 03 Sep 2012 08:23:52 GMTvtippatents@vtip.org Fluidized Bed Pyrolysis Production of Biogasoil, 03 Sep 2012 08:23:47 GMTvtippatents@vtip.org of Biomass and Grain Yield in Crop Plants, 03 Sep 2012 08:23:45 GMTvtippatents@vtip.org Levitation Based Energy Harvester for Low Frequency Vibrations, 03 Sep 2012 08:23:40 GMTvtippatents@vtip.org Use of PLL Stability for Islanding Detection islanding detection metehod that does not inject distortions into grid via the output of the converter, but rather relies on the stability of the PLL which, with the proposed implementation, inherently senses a grid disconnect and starts to oscillate.Mon, 03 Sep 2012 08:23:36 GMTvtippatents@vtip.org Cellulose Adipate Products and Processes, 03 Sep 2012 08:23:35 GMTvtippatents@vtip.org Soybean, 03 Sep 2012 08:23:28 GMTvtippatents@vtip.org Bioluminescence Sensing Many promising optical molecular imaging modalities, such as bioluminescence tomography (BLT) and fluorescence molecular tomography (FMT) face limitations in detecting deeply embedded optical molecular probes. Based on a biopsy-like optical signal acquisition technique, compressive-sensing-based computational optical biopsy (CSCOB) alleviates the detection depth limitation. CSCOB is minimally invasive to the imaged subject and can perform molecular imaging functionalities on large lab animals or even on human subject. These functionalities can help to monitor drug delivery, evaluate therapy,...Mon, 03 Sep 2012 08:23:22 GMTvtippatents@vtip.org Fun Magnetic Shapes, 03 Sep 2012 08:23:20 GMTvtippatents@vtip.org Array for Optical Imaging and Therapeutics, 03 Sep 2012 08:23:14 GMTvtippatents@vtip.org Conducting Microporous Frameworks, 03 Sep 2012 08:23:07 GMTvtippatents@vtip.org Methods of Noise Separator for Good Wideband Performance invention disclosure addresses the design of noise separator for conducted electromagnetic interference (EMI) diagnosis. Traditional EMI diagnosis is trial-and-error, wasting lots of time and money. Starting from the function design in circuits to practical design on component and layout level, this invention disclosure claims the methods developed in Center for Power Electronics Systems to achieve a high performance noise separator for conducted EMI measurement in a wideband application (10kHz-30MHz). Following the design methods, all parasitics in the noise separator can be minimized so...Mon, 03 Sep 2012 08:23:06 GMTvtippatents@vtip.org and Systems for SPECT/PET Interior Reconstruction From Truncated Projection Data, 03 Sep 2012 08:22:59 GMTvtippatents@vtip.org X-ray Computed Tomography (MXCT) Methods and Systems, 03 Sep 2012 08:22:58 GMTvtippatents@vtip.org to Protect Plants and Animals against Pathogen Infection by Blocking Entry of Virulence Proteins, 03 Sep 2012 08:22:56 GMTvtippatents@vtip.org Capacitor ZVS-PWM DC/DC with Self-Driven SE, 03 Sep 2012 08:22:45 GMTvtippatents@vtip.org Phytic Acid, High Sucrose and Low Stachyose Soybean Lines, 03 Sep 2012 08:22:44 GMTvtippatents@vtip.org and Fabrication of Miniature Fiber-Optic Temperature Sensors, 03 Sep 2012 08:22:35 GMTvtippatents@vtip.org Compensation Driving Scheme for Synchronous Rectifiers necessity of developing highpower density, low output voltage converters with very high efficiency for distributed power supply systems, leads to the substitution of the rectifier diodes of the output stage by synchronous rectifiers (SR). The most suitable device as synchronous rectifier in high switching frequency converters is the power MOSFET. The use of SR in PWM converters has been widely studied. However, synchronous rectification techniques applied to resonant converters have been hardly investigated. Generally, SR driving methods for PWM converters can not be directly applied to re...Mon, 03 Sep 2012 08:22:25 GMTvtippatents@vtip.org (Jamestown), 03 Sep 2012 08:22:21 GMTvtippatents@vtip.org Barley (Eve), 03 Sep 2012 08:22:20 GMTvtippatents@vtip.org Interleaving Strategy for Multi-Channel PFC, 03 Sep 2012 08:22:17 GMTvtippatents@vtip.org Mode Noise Reduction for Power Factor Correction Circuit with Parasitic Capacitance Cancellation common mode (CM) noise is caused by the charging and discharging of the parasitic capacitance between the ground and the high dv/dt nodes in the circuits. For switching mode power supply, high dv/dt is inevitable. The parasitic capacitance therefore should be as small as possible. However, power devices consume powers so as to generate heat. Heatsink must be used. The parasitic capacitance between the heatsink and the power devices is thus inevitable. The noise then flows through this parasitic capacitance and finally to the ground. This invention proposes a method to cancel the parasitic ...Mon, 03 Sep 2012 08:22:15 GMTvtippatents@vtip.org Digital Constant On-Time Control, 03 Sep 2012 08:22:14 GMTvtippatents@vtip.org for Making Oriented Single-Walled Carbon Nanotube/Polymer Nano-Composite Membranes, 03 Sep 2012 08:22:09 GMTvtippatents@vtip.org (colossal) Magnetoelectricity in High-Permeability Magnetostrictive/Piezo/Fiber Laminates, 03 Sep 2012 08:22:07 GMTvtippatents@vtip.org Non-Isolated Bus Converters, 03 Sep 2012 08:22:03 GMTvtippatents@vtip.org Device with MALDI-MS Detection for Complex Sample Processing The present invention provides a microfluidic device and method for facilitating on-chip complex sample processing and detection. In general, the device comprises at least a separation channel of a separation system, an interface, and an array of microreservoirs disposed within the same chip. The interface is configured to orthogonally transfer separated components from the separation channel into the array of microreservoirs, enabling direct analyte detection from the chip and high-throughput analysis.Mon, 03 Sep 2012 08:22:02 GMTvtippatents@vtip.org Resistant Reverse Osmosis Membranes, 03 Sep 2012 08:22:01 GMTvtippatents@vtip.org of Nonlinear Susceptibilities in Organic Film Materials, 03 Sep 2012 08:22:00 GMTvtippatents@vtip.org Injectors for Gaseous Hydrogen Combustion in Gas Turbines, 03 Sep 2012 08:22:00 GMTvtippatents@vtip.org Analog/Mixed Signal Orthogonal-Frequency-Division-Multiplexing Analog-to-Digital Converter Architecture, 03 Sep 2012 08:21:56 GMTvtippatents@vtip.org the Winding Capacitance of Inductors to Greatly Improve its High Frequency Filtering Performance, 03 Sep 2012 08:21:56 GMTvtippatents@vtip.org Common Mode Noise of Power Factor Correction Converters Using General Balance Concept, 03 Sep 2012 08:21:55 GMTvtippatents@vtip.org Hybrid Control Method for Digital PWM, 03 Sep 2012 08:21:53 GMTvtippatents@vtip.org Detection Based on Sequential Interference Cancellation Techniques, 03 Sep 2012 08:21:52 GMTvtippatents@vtip.org Current Sensing Method for Adaptive Voltage Positioning in Coupled Inductor Voltage Regulators, 03 Sep 2012 08:21:48 GMTvtippatents@vtip.org Air Gap LTCC Inductor Reduces Power Consumption of DC-DC Converter When Operating at No/Low Load Condition, 03 Sep 2012 08:21:44 GMTvtippatents@vtip.org Atlas for the Canine Lumbosacral Spine based tutorial that helps users learn the normal anatomy of the canine lumbosacral spine. Mon, 03 Sep 2012 08:21:43 GMTvtippatents@vtip.org Technique for Multi-phase VRs, 03 Sep 2012 08:21:42 GMTvtippatents@vtip.org Electric Plasma Torch for Ignition, Flameholding and Enhancement of Combustion in High Speed Flows, 03 Sep 2012 08:21:41 GMTvtippatents@vtip.org of Morning Glory as Anticancer Agents compounds derived from morning glory plant material (especially Ipomoea sp. from Suriname) are useful as anti-cancer agents. The novel compounds also are useful for treating neurodegenerative disorders (such as Alzheimer's disease) in human patients. Mon, 03 Sep 2012 08:21:40 GMTvtippatents@vtip.org of Plant Growth and Biomass Accumulation in Plants, 03 Sep 2012 08:21:37 GMTvtippatents@vtip.org Decision Support Tool, 03 Sep 2012 08:21:36 GMTvtippatents@vtip.org JFET as Synchronous Rectifier to Achieve High Efficiency at High Frequency for Future VRM, 03 Sep 2012 08:21:30 GMTvtippatents@vtip.org Inductor-less Soft-Switching Bus Converter with Self-Driven, 03 Sep 2012 08:21:29 GMTvtippatents@vtip.org Filter for High Slew Rate Output Current Application, 03 Sep 2012 08:21:27 GMTvtippatents@vtip.org and Method for Enhanced Wastewater Treatment, 03 Sep 2012 08:21:25 GMTvtippatents@vtip.org Media, 03 Sep 2012 08:21:22 GMTvtippatents@vtip.org Based Intrusion Detection This invention offers a unique security system for computerized devices. The novel technique detects and alerts a user, microprocessor, and/or network administrator of undesired software operations, including, software attacks, worms, and viruses, through monitoring energy demands of battery power for mobile computing devices. Portable computing devices are increasingly becoming targets of malicious software attacks, especially when linked via a wireless network. The increasing potential for undesired software operation demands a new system or method for detecting malicious software attacks....Mon, 03 Sep 2012 08:21:20 GMTvtippatents@vtip.org and Silicone-Urethane Segmented Terpolymers also Containing Polyether and Polyester Soft Segments and Their Method of Preparation, 03 Sep 2012 08:21:19 GMTvtippatents@vtip.org Improving EMI Filter High Frequency Performances Through the Cancellation of Inductive Couplings and Equivalent Series Inductance (ESL) of Capacitors EMI standards are enforced by governments in the world, all electronic equipment uses EMI filters. The parasitics, including parasitics of components and parasitic couplings between components, affect EM1 filter performance significantly. At high frequency range, these parasitics determine filter performance. Usually, in order to reduce couplings between components, companies place components far away to each other, which makes larger filter size but the performance is still not so good. Therefore, it is very necessary to control these couplings to improve EMI filter performance. This ...Mon, 03 Sep 2012 08:21:18 GMTvtippatents@vtip.org Phased Array Antenna Employing Increased Packaging Density Laminate Structure Containing Feed Network, Balun, and Power Divider Circuitry This multi-element antenna system structure offers a novel architecture to substantially reduce the physical space required to implement and mount an associated feed network and interconnection circuitry. Therefore, this technology decreases the size and packaging density of a phased array antenna system. The new and improved, highly compact, wideband multi-element antenna structure successfully integrates, within a relatively thin laminate structure, a plurality of closely spaced and fed printed circuit antenna elements with their associated feed, balum, and power divider networks. In additi...Mon, 03 Sep 2012 08:21:17 GMTvtippatents@vtip.org Wave Atomic Force Microscopy, 03 Sep 2012 08:21:16 GMTvtippatents@vtip.org Magneto-Electric Transformer with Higher Voltage Gain, 03 Sep 2012 08:21:16 GMTvtippatents@vtip.org Paclitaxels as Anticancer Agents, 03 Sep 2012 08:21:14 GMTvtippatents@vtip.org Senseless AVP Method for Future VRM, 03 Sep 2012 08:21:09 GMTvtippatents@vtip.org Soft-Switching Bus Converter with Self-Driven, 03 Sep 2012 08:21:08 GMTvtippatents@vtip.org Concepts to Improve Light Load Efficiency - Optimal Number of Phases, Baby-Buck Channel, and Adaptive Bus Voltage Positioning, 03 Sep 2012 08:21:07 GMTvtippatents@vtip.org of Vacuum to Control Wood Insects, 03 Sep 2012 08:21:05 GMTvtippatents@vtip.org Ceramic-Reinforced Metal Matrix Composites for Vibration Damping and Structural Applications approaches have been devised to create multifunctional metal matrix composites offering effective structural and passive damping capabilities. Both functions are derived from an in situ-synthesized dispersion of ceramic crystals within the metallic matrix. In their role as structural-effecting entities, the ceramic crystal dispersions are in a form suitable for effective strengthening and property enhancement. As damping entities, the crystals are capable of significant energy absorption as a consequence of the resistance-based heating which occurs if subjected to mechanical or acou...Mon, 03 Sep 2012 08:21:02 GMTvtippatents@vtip.org Self-Driven Technique for Non-Isolated 12V VRs concept of self-driven for synchronous rectifier devices was widely used in isolated topologies, where the voltage across the secondary winding can be used, or partially used as the gate driving source for the rectifiers. The main benefit of self-driven is that the driving circuit is simplified, which results in a low cost solution. However, in conventional buck converter, which is the dominant member in 12V VRM family, it is very difficult to adopt selfdriven scheme. The proposed self-driven topologies are basically buck-derived multi-phase interleaving soft switching topologies, which ca...Mon, 03 Sep 2012 08:20:56 GMTvtippatents@vtip.org Phase-Shift Buck Converter voltage regulator module (VRM) technology enables reduced switching losses and provides a more cost effective approach to achieving high efficiency than a buck converter.6,757,184 (02.122) Mon, 03 Sep 2012 08:20:52 GMTvtippatents@vtip.org Based on Producing Long Thin Holes in Optical Fibers, 03 Sep 2012 08:20:50 GMTvtippatents@vtip.org Self-Assembled Micro and Macrostructure Ceramics, Metals and Polymer Materials, 03 Sep 2012 08:20:49 GMTvtippatents@vtip.org Full Bridge with Self-Driven This invention proposes a high frequency and high efficiency topology. Compared to conventional phase-shift full bridge, the topology is the same and the only difference is the control strategy. Based on the control strategy, Zero-voltage-switch (ZVS) can be achieved. Another benefit from the control strategy is that the gate signal for synchronous rectifier can be derived from the center points of bridge legs directly and easily. Compared to the conventional self-driven, the proposed self-driven does not have severe ringing and the waveform is pretty clean. Analysis and experimental results ...Mon, 03 Sep 2012 08:20:47 GMTvtippatents@vtip.org Interleaving Isolated DC/DC Converter, 03 Sep 2012 08:20:46 GMTvtippatents@vtip.org Treatment of Hemophilia, 03 Sep 2012 08:20:45 GMTvtippatents@vtip.org Frequency Quasi-Resonant Buck and Tap Buck Converters, 03 Sep 2012 08:20:42 GMTvtippatents@vtip.org (McCormick) McCormick is a mid-season, high yielding, short-stature, awnleted, soft red winter wheat with good straw strength.Mon, 03 Sep 2012 08:20:41 GMTvtippatents@vtip.org Barley (Price), 03 Sep 2012 08:20:40 GMTvtippatents@vtip.org of Thin Films with Significant Nonlinear Susceptibilities Using Water Soluble, Reactive, Monomeric Chromophores novel scientific development introduces a new method and new materials to produce multilayered, nonlinear optical films. Potential applications include electro-optic modulators and frequency doubling devices. The materials and processing steps used result in high degree of non-centrosymmetry in the film, thus forming high net polar ordering which is very useful for various electro-optical applications. Compared to existing electro-optic modulators, this innovation offers advantages, including, higher nonlinear susceptibilities, high modulation rates, and lower device fabrication costs.Mon, 03 Sep 2012 08:20:33 GMTvtippatents@vtip.org DC Circuit Breaker, 03 Sep 2012 08:20:31 GMTvtippatents@vtip.org Topologies for Multiple Energy Sources Power Conversions, 03 Sep 2012 08:20:25 GMTvtippatents@vtip.org Fourpoint Antenna, 03 Sep 2012 08:20:21 GMTvtippatents@vtip.org Hepatitis E Virus (avian HEV) and Its Uses Thereof, 03 Sep 2012 08:20:20 GMTvtippatents@vtip.org Device for Vibrational and Sound Radiation Control, 03 Sep 2012 08:20:02 GMTvtippatents@vtip.org Start-up Circuit and Control for Isolated Boost DC/DC Converters, 06 Aug 2012 10:26:14 GMTvtippatents@vtip.org Accelerated Commutation for Passive-Clamped Isolated Boost Converters, 06 Aug 2012 10:26:13 GMTvtippatents@vtip.org Compounds to Inhibit Plant Diseases, 06 Aug 2012 10:26:03 GMTvtippatents@vtip.org Dimming Electronic Ballast with Constant Lamp Power Control, 29 Mar 2012 07:36:46 GMTvtippatents@vtip.org Gas Discharge Lamp Inverter with a Wide Input Voltage Range novel electronic ballast which can achieve low line input current harmonics, low crest factor constant lamp power, low DC bus voltage stress, and low switching current stress over a wide range of line input voltages.Thu, 29 Mar 2012 07:36:43 GMTvtippatents@vtip.org