Now showing items 21-40 of 619

    • Hybrid interleaving structure with adaptive phase locked loop for variable frequency controlled switching converter 

      Virginia Tech Intellectual Properties, Inc.; Li, Qiang; Liu, Pei-Hsin; Lee, Fred C. (United States Patent and Trademark Office, 2018-07-03)
      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, improved stability of high ...
    • 3D printing part removal and interface for a 3D printing vending machine 

      Virginia Tech Intellectual Properties, Inc.; Kline, Kevin D. (United States Patent and Trademark Office, 2018-04-03)
      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 area. Also provided is an ...
    • Porcine torque teno virus vaccines and diagnosis 

      Virginia Tech Intellectual Properties, Inc.; Meng, Xiang-Jin; Huang, Yaowei (United States Patent and Trademark Office, 2018-02-20)
      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 PTTV2c-VA. The present ...
    • System and method for genotyping using informed error profiles 

      Virginia Tech Intellectual Properties, Inc.; Mittelman, David A.; Franck, Christopher T. (United States Patent and Trademark Office, 2018-03-13)
      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 sequence reads and reference ...
    • Method and apparatus for current/power balancing 

      Virginia Tech Intellectual Properties, Inc.; Toyota Motor Engineering & Manufacturing North American, Inc.; Wang, Chi-Ming; Mao, Yincan; Miao, Zichen; Ngo, Khai D. (United States Patent and Trademark Office, 2018-03-20)
      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 a second transistor. ...
    • Ladder chair 

      Virginia Tech Intellectual Properties, Inc.; Taylor, Alex (United States Patent and Trademark Office, 2016-12-13)
      A configurable furniture system and method are disclosed. The system and method include one or more panels, each of the panels having one or more working edges. One or more hinges successively connect the panels together ...
    • Energy storage for power factor correction in battery charger for electric-powered vehicles 

      Virginia Tech Intellectual Properties, Inc.; Wang, Hui; Ngo, Khai Doan (United States Patent and Trademark Office, 2018-03-13)
      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 inductor during battery charging. ...
    • Analysis system using brokers that access information sources 

      Virginia Polytechnic Institute and State Univ.; Marathe, Madhav V.; Barrett, Christopher L.; Bisset, Keith R. (United States Patent and Trademark Office, 2018-01-16)
      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 includes receiving a ...
    • Chimeric infectious DNA clones, chimeric porcine circoviruses and uses thereof 

      Virginia Tech Intellectual Properties, Inc.; Iowa State University Reserach Foundation, Inc.; Meng, Xiang-Jin; Halbur, Patrick G.; Fenaux, Martijn (United States Patent and Trademark Office, 2018-02-13)
      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 multisystemic wasting syndrome ...
    • Detection of stealthy malware activities with traffic causality and scalable triggering relation discovery 

      Virginia Tech Intellectual Properties, Inc.; Zhang, Hao; Yao, Danfeng (United States Patent and Trademark Office, 2018-02-06)
      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 coupled to the CPU. The memory ...
    • System and method for heterogenous spectrum sharing between commercial cellular operators and legacy incumbent users in wireless networks 

      Virginia Tech Intellectual Properties, Inc.; FEDERATED WIRELESS, INC.; Kumar, Akshay; Mitola, III, Joseph; Reed, Jeffrey H.; Clancy, III, Thomas Charles; Amanna, III, Ashwin; McGweir, Robert; Sengupta, Avik (United States Patent and Trademark Office, 2016-12-06)
      Described herein are systems and methods for telecommunications spectrum sharing between multiple heterogeneous users, which leverage a hybrid approach that includes both distributed spectrum sharing, spectrum-sensing, and ...
    • Universal system structure for low power adapters 

      Virginia Tech Intellectual Properties, Inc.; Li, Qiang; Lee, Fred C.; Huang, Xiucheng (United States Patent and Trademark Office, 2017-12-19)
      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 feeds an output voltage ...
    • Irreversible electroporation using tissue vasculature to treat aberrant cell masses or create tissue scaffolds 

      Virginia Tech Intellectual Properties, Inc.; Davalos, Rafael V.; Sano, Michael B.; Garcia, Paulo A.; Robertson, John L.; Neal, II, Robert E. (United States Patent and Trademark Office, 2018-01-16)
      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 Irreversible Electroporation ...
    • Live attenuated chimeric porcine circovirus vaccine 

      Virginia Tech Intellectual Properties, Inc.; Meng, Xiang-Jin; Beach, Nathan M.; Ramamoorthy, Sheela (United States Patent and Trademark Office, 2018-01-02)
      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 non-pathogenic PCV1 virus ...
    • Hybrid detector modules and dynamic thresholding for spectral CT 

      Virginia Tech Intellectual Properties, Inc.; Wang, Ge; Cong, Wenxiang; Chu, Jiyang (United States Patent and Trademark Office, 2018-01-09)
      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 X-rays through the object for ...
    • Resistive volatile/non-volatile floating electrode logic/memory cell 

      Virginia Tech Intellectual Properties, Inc.; Liu, Tong; Orlowski, Marius K.; Verma, Mohini; Kang, Yuhong (United States Patent and Trademark Office, 2017-10-17)
      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 to the minimum available ...
    • Methodology for assessing the biomechanical performance of helmets 

      Virginia Tech Intellectual Properties, Inc.; Duma, Stefan M.; Rowson, Steven; McNally, Craig (United States Patent and Trademark Office, 2017-10-24)
      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 concussion. In certain embodiments, ...
    • Cognitive reconfigurable RF technology 

      Virginia Tech Intellectual Properties, Inc.; Reed, Jeffrey H.; Imana, Eyosias Yoseph; Yang, Tae Young (United States Patent and Trademark Office, 2017-11-21)
      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 path is tuned to a desired ...
    • Circuit and method for driving synchronous rectifiers for high-frequency flyback converters 

      Virginia Tech Intellectual Properties, Inc.; Li, Qiang; Lee, Fred C.; Huang, Xiucheng (United States Patent and Trademark Office, 2017-11-07)
      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 resistor and capacitor ...
    • Energy harvester 

      Virginia Tech Intellectual Properties, Inc.; Samsung Electronics Co., Lgd.; Park, Hwi-yeol; Cho, Kyunghoon; Heo, Jin S.; Priya, Shashank; Abdelkefi, Abdessattar; Sharpes, Nathan; Hajj, Muhammad R. (United States Patent and Trademark Office, 2017-10-10)
      An energy harvester for converting vibration energy into electrical energy and harvesting the electrical energy includes: a base; a clamping structure which is supported by the base and is spaced apart from the base; an ...