Patents and Patent Applications from Virginia Tech


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10024073 Pool cleaner with laser range finder system and method  
A swimming pool cleaner includes a chassis that supports a motor and a camera that is associated with the chassis and configured to identify at least one object. A controller is in communication...
US20180194954 POROUS THERMALLY INSULATING COMPOSITIONS CONTAINING HOLLOW SPHERICAL NANOPARTICLES  
A method of thermally insulating a surface, the method comprising applying a coating of a thermally insulating composition onto said surface, wherein said thermally insulating composition...
10013007 Hybrid interleaving structure with adaptive phase locked loop for variable frequency controlled switching converter  
In a multi-phase power converter using a phase-locked loop (PLL) arrangement for interleaving of pulse frequency modulated (PFM) pulses of the respective phases, improved transient response,...
US20180161086 IMMUNOTHERAPEUTIC METHODS USING IRREVERSIBLE ELECTROPORATION  
Methods for treating tissue with irreversible electroporation and immunotherapy are described. The methods include placing a probe in tissue within a human body, wherein the probe has at least a...
9998111 Power switch drivers with equalizers for paralleled switches  
Capacitors connected between gate terminals of a plurality of parallel-connected power transistors are charged and discharged in each switching cycle to provide a plurality of power transistor...
US20180154377 SYSTEM CONTROL BASED ON ACOUSTIC SIGNALS  
An example system includes at least one acoustic sensor configured to generate at least one time-dependent acoustic data signal indicative of an acoustic signal generated by a thermal spray system...
9989620 Estimating the location of a wireless terminal based on radio-frequency pattern matching and cooperative measurements  
A method for estimating the location of a wireless terminal is disclosed that is based on using: the known location of one or more devices, empirical data that indicates the relative position of...
US20180147275 CHIMERIC INFECTIOUS DNA CLONES, CHIMERIC PORCINE CIRCOVIRUSES AND USES THEREOF  
The present invention relates to infectious DNA clones, infectious chimeric DNA clones of porcine circovirus (PCV), vaccines and means of protecting pigs against viral infection or postweaning...
US20180125565 IRREVERSIBLE ELECTROPORATION USING TISSUE VASCULATURE TO TREAT ABERRANT CELL MASSES OR CREATE TISSUE SCAFFOLDS  
The present invention relates to the field of medical treatment of diseases and disorders, as well as the field of biomedical engineering. Embodiments of the invention relate to the delivery of...
9966874 Power-cell switching-cycle capacitor voltage control for modular multi-level converters  
In a modular multi-level power converter, additional switching states are interleaved between main switching states that control output voltage or waveform. The additional switching states provide...
US20180122746 COOLER WITH EMI-LIMITING INDUCTOR  
A power device package includes a dielectric substrate having an upper conductor layer and a lower conductor layer, a semiconductor die coupled to the upper conductor layer of the dielectric...
US20180108817 WHITE LIGHT SOURCE DEVICE  
A white light source device includes a first light-emitting element, and at least one second light-emitting element. The first light-emitting element includes a first light-emitting unit and a...
US20180107931 Complex Situation Analysis System Using a Plurality of Brokers that Control Access to Information Sources  
Systems, methods, and computer-readable media for generating a data set are provided. One method includes generating a data set based on input data using a plurality of brokers. The method further...
9947994 Time-variant antenna module for wireless communication devices  
A plug-and-play antenna may be used with many different types of wireless communication devices. An antenna may be coupled to an impedance tuning component and a waveform generator. A calibration...
9944618 Inhibiting neurotransmitter reuptake  
This document relates to compounds as well as methods and materials involved in modulating neurotransmitter reuptake. For example, compounds, methods for synthesizing compounds, and methods for...
9931784 3D printing part removal and interface for a 3D printing vending machine  
The present invention concerns a system and method for fabricating a three-dimensional object. A build platform is provided that defines a build area and includes a print bed within the build...
9923560 Method and apparatus for current/power balancing  
Aspects of the disclosure provide a system having a power circuit. The power circuit includes a first switch circuit having at least a first transistor and a second switch circuit having at least...
US20180076915 Method for Jointly Adapting an OFDM Waveform and the Demodulator for Interference Mitigation and Harsh Channels  
The present invention provides a method and system for a processing multicarrier signal to create a spectral correlation across multiple antennas. The system includes at least one transmitter...
US20180076723 VARIABLE DC LINK CONVERTER AND TRANSFORMER FOR WIDE OUTPUT VOLTAGE RANGE APPLICATIONS  
A variable direct current (DC) link power converter is described. In one example, the power converter includes a first converter stage configured to convert power from a power source to power at...
9916416 System and method for genotyping using informed error profiles  
A system and method for genotyping tandem repeats in sequencing data. The invention uses Bayesian model selection guided by an empirically-derived error model that incorporates properties of...
9914362 Energy storage for power factor correction in battery charger for electric-powered vehicles  
Switches of a switching circuit used to control operation of an electric motor such as in an electrically powered vehicle connect respective windings of the electric motor as a single phase...
9908313 Process for bonding lignocellulosic substrates without an added adhesive and products thereof  
Processes for bonding lignocellulosic substrates without an added adhesive are described. The processes of the invention may include exposing the surfaces of the lignocellulosic substrate to a...
US20180054140 INTERFACE CONVERTER COMMON MODE VOLTAGE CONTROL  
Aspects of interface converter common mode (CM) voltage control are described. In one embodiment, a bi-directional alternating current (AC) to direct current (DC) interface converter system...
9897605 Porcine torque teno virus vaccines and diagnosis  
The present invention provides four purified preparation containing a polynucleic acid molecule encoding porcine Torque teno virus (PTTV) genotypes or subtypes PTTV1a-VA, PTTV1b-VA, PTTV2b-VA, and...
9889187 Chimeric infectious DNA clones, chimeric porcine circoviruses and uses thereof  
The present invention relates to infectious DNA clones, infectious chimeric DNA clones of porcine circovirus (PCV), vaccines and means of protecting pigs against viral infection or postweaning...
US20180036741 Cleaning and Dewatering Fine Coal  
Fine coal is cleaned of its mineral matter impurities and dewatered by mixing the aqueous slurry containing both with a hydrophobic liquid, subjecting the mixture to a phase separation. The...
US20180036651 Apparatus for Dewatering and Demineralization of Fine Particles  
Hydrophobic particles such as coal and hydrophobized mineral fines can be readily separated from hydrophilic impurities by forming agglomerates in water using a hydrophobic liquids such as oil....
9888030 Detection of stealthy malware activities with traffic causality and scalable triggering relation discovery  
A computer system for distinguishing user-initiated network traffic from malware-initiated network traffic comprising at least one central processing unit (CPU) and a memory communicatively...
9879048 Isolation, identification, and uses of antifungal compounds  
In one aspect, the invention relates to isolated compounds useful as antifungal agents, for example, compounds having a structure represented by a formula: wherein R1 is hydrogen or hydroxyl;...
9870531 Analysis system using brokers that access information sources  
Systems, methods, and computer-readable media for generating a data set are provided. One method includes generating a data set based on input data using a plurality of brokers. The method further...
9867652 Irreversible electroporation using tissue vasculature to treat aberrant cell masses or create tissue scaffolds  
The present invention relates to the field of medical treatment of diseases and disorders, as well as the field of biomedical engineering. Embodiments of the invention relate to the delivery of...
9861324 Hybrid detector modules and dynamic thresholding for spectral CT  
A system and method that comprises an X-ray source configured to emit an X-ray beam; an object positioned to receive the X-ray beam; a detector configured to receive an attenuated beam of the...
US20180006644 PARALLEL DEVICES HAVING BALANCED SWITCHING CURRENT AND POWER  
A power circuit includes a power source for providing electrical power and two driving transistors being disposed in parallel and receiving electrical power from the power source. Each of the two...
9855327 Live attenuated chimeric porcine circovirus vaccine  
The present invention provides a novel chimeric porcine circovirus infectious DNA clone and live attenuated chimeric virus with the PCV2, preferably of subtype PCV2b, capsid gene integrated into a...
US20170360326 DEVICES, SYSTEMS, AND METHODS FOR REAL-TIME MONITORING OF ELECTROPHYSICAL EFFECTS DURING TISSUE TREATMENT  
Provided herein are devices, systems, and methods for monitoring lesion or treated area in a tissue during focal ablation or cell membrane disruption therapy. Provided herein are embodiments of an...
9847710 Universal system structure for low power adapters  
A two-stage power converter architecture including an isolation transformer and rectification of the isolation transformer output by an LLC resonant circuit and methodology for operating the same...
US20170356773 SYSTEM AND METHOD OF NON-INTRUSIVE ANEMOMETRY  
A system and method of non-intrusive anemometry. The system comprises an acoustic transmitter disposed at a boundary of fluid flow and first and second acoustic receivers adapted to receive...
US20170344438 MICROPROCESSOR FAULT DETECTION AND RESPONSE SYSTEM  
Aspects disclosed in the detailed description include a microprocessor fault detection and response system. The microprocessor fault detection and response system utilizes a hardware-based...
9825653 Cognitive reconfigurable RF technology  
The present invention provides a radio architecture that contains a main radio path and a sensing path. The parameters of the main radio path are controlled by a cognitive engine. The main radio...
9812978 Circuit and method for driving synchronous rectifiers for high-frequency flyback converters  
A voltage waveform similar to a waveform of a magnetizing current of an isolation transformer and immune to high frequency oscillatory resonant behavior is developed across a capacitor of a series...
US20170316324 Computerized Event-Forecasting System and User Interface  
Systems, methods, and computer-readable media for simulating the course of an event or for collecting data for the simulation are provided. A processing unit can receive attributes of synthetic...
US20170313825 POLYCARBONATE-POLYOLEFIN BLOCK COPOLYMERS AND METHODS OF MAKING THEM  
A polycarbonate-polyolefin block copolymer and a process to form a polycarbonate-polyolefin block copolymer by combining mono- or di-hydroxyaryl with vinyl/vinylidene terminated polyolefin to form...
US20170310482 Using Power Fingerprinting (PFP) to Monitor the Integrity and Enhance Security of Computer Based Systems  
Procedures are described for enhancing target system execution integrity determined by power fingerprinting (PFP): by integrating PFP into the detection phase of comprehensive defense-in-depth...
9797821 Methodology for assessing the biomechanical performance of helmets  
The present invention provides a method for testing a helmet that uses a risk function that incorporates both linear and rotational acceleration to predict the helmet's ability to prevent a...
US20170302270 METHOD AND APPARATUS FOR CURRENT/POWER BALANCING  
Aspects of the disclosure provide a system having a power circuit. The power circuit includes a first switch circuit having at least a first transistor and a second switch circuit having at least...
US20170300657 Computerized Event Simulation Using Synthetic Populations  
Systems, methods, and computer-readable media for simulating the course of an event are provided. A processing unit can receive attributes of a synthetic population and select a...
US20170298032 SPHINGOSINE KINASE INHIBITORS  
Sphingosine kinases are enzymes that catalyze the biosynthesis of sphingosine-1-phosphate. The invention provides compounds that are effective for inhibition of sphingosine kinase type 1,...
US20170296700 STEM CELL COMPOSITIONS, SYSTEMS AND USES THEREOF  
Described herein are stem cells and stem cell compositions that can be used to treat soft tissue injuries, including tendon and ligament injuries. Also described herein are cellular scaffolds that...
9792985 Resistive volatile/non-volatile floating electrode logic/memory cell  
A resistive floating electrode device (RFED) provides a logic cell or non-volatile storage or dynamic or static random access memory on an extremely compact matrix with individual cells scalable...
9789492 Cleaning and dewatering fine coal  
Fine coal is cleaned of its mineral matter impurities and dewatered by mixing the aqueous slurry containing both with a hydrophobic liquid, subjecting the mixture to a phase separation. The...