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Wang, VA

Aihua Wang, Blacksburg, VA US

Patent application numberDescriptionPublished
20100009374SIRE EARLY SELECTION FOR MALE FERTILITY USING SINGLE NUCLEOTIDE POLYMORPHISMS (SNPS) OF THE DAZL GENE - Methods and materials for identifying bovine males which will produce semen which will exhibit a higher rate of successfully impregnation by either artificial insemination or natural mating. The method employs SNPs that have been identified in the bDAZL gene which are associated with enhanced (or decreased) male fertility in bovine males and haplotypes formed from such SNPs. The method herein can be used to identify male dairy or beef cattle. The method herein can be applied to bovine animals at an appropriate time and particularly at birth or in utero. The invention further provides kits for conduction assays to assess bovine male fertility/infertility. The invention additionally provides a method of breeding cattle employing the methods and materials herein.01-14-2010

Allen Y. Wang, Vienna, VA US

Patent application numberDescriptionPublished
20080287342Compositions Comprising Modified Collagen and Uses Therefor - The invention provides modified collagen and related therapeutic and diagnostic methods.11-20-2008

Anbo Wang, Blacksburg, VA US

Patent application numberDescriptionPublished
20090056383HOLEY OPTICAL FIBER WITH RANDOM PATTERN OF HOLES AND METHOD FOR MAKING SAME - A random array of holes is created in an optical fiber by gas generated during fiber drawing. The gas forms bubbles which are drawn into long, microscopic holes. The gas is created by a gas generating material such as silicon nitride. Silicon nitride oxidizes to produce nitrogen oxides when heated. The gas generating material can alternatively be silicon carbide or other nitrides or carbides. The random holes can provide cladding for optical confinement when located around a fiber core. The random holes can also be present in the fiber core. The fibers can be made of silica. The present random hole fibers are particularly useful as pressure sensors since they experience a large wavelength dependant increase in optical loss when pressure or force is applied.03-05-2009

Patent applications by Anbo Wang, Blacksburg, VA US

Chuantong Wang, Yorktown, VA US

Patent application numberDescriptionPublished
20110274139Wireless Temperature Sensing Having No Electrical Connections and Sensing Method for Use Therewith - A wireless temperature sensor includes an electrical conductor and a dielectric material on the conductor. The conductor is electrically unconnected and is shaped for storage of an electric field and a magnetic field. In the presence of a time-varying magnetic field, the conductor resonates to generate harmonic electric and magnetic field responses, each of which has a frequency associated therewith. The material is selected such that it experiences changes in either dielectric or magnetic permeability attributes in the presence of a temperature change. Shifts from the sensor's baseline frequency response indicate that the material has experienced a temperature change.11-10-2011

Chuanyun Wang, Blacksburg, VA US

Patent application numberDescriptionPublished
20080239771Asymmetrical Interleaving Strategy for Multi-Channel Power Converters - In a power converter having m=two or more channels of power factor correction (PFC) circuits connected in parallel and an electromagnetic interference (EMI) filter connected in series therewith, phase shifts in switching between the respective PFC channels can allow increase of EMI filter corner frequency allowing reduction of size and cost of the EMI filter at some switching frequencies. Asymmetrical phase shifts (other than 360°/m) such as 360°/2m and other phase shifts and variations in m allow increase of EMI filter corner frequency at switching frequencies where symmetrical, 360°/m phase shifts provide no benefit to EMI filter design by providing cancellation or partial cancellation of different harmonics of the switching noise; which cancellation may be arranged to be complementary to the EMI filter function at more than one peak of the noise spectrum. (Such asymmetrical phase shifts do not significantly increase ripple and consequent switching noise). Alteration of m and corresponding alteration of phase shift may be performed adaptively for purposes of improving efficiency at light loads and the like.10-02-2008

Dongyu Wang, Blacksburg, VA US

Patent application numberDescriptionPublished
20080223852Induction Heating and Control System and Method with High Reliability and Advanced Performance Features - An induction heating and control system and method have enhanced reliability and advanced performance features for use with induction cooking devices, such as induction heating ranges. Enhanced performance is facilitated via the use of an induction heating system which integrates voltage management, power management, thermal management, digital control sensing and regulation systems, and protection systems management.09-18-2008
20110290787INDUCTION HEATING AND CONTROL SYSTEM AND METHOD WITH HIGH RELIABILITY AND ADVANCED PERFORMANCE FEATURES - An induction heating and control system and method have enhanced reliability and advanced performance features for use with induction cooking devices, such as induction heating ranges. Enhanced performance is facilitated via the use of an induction heating system which integrates voltage management, power management, thermal management, digital control sensing and regulation systems, and protection systems management.12-01-2011

Patent applications by Dongyu Wang, Blacksburg, VA US

Fred Wang, Blacksburg, VA US

Patent application numberDescriptionPublished
20100027304ELECTRICAL POWER SYSTEM WITH HIGH-DENSITY PULSE WIDTH MODULATED (PWM) RECTIFIER - An electrical power system includes an alternating current (AC) power source configured to output an AC signal, a single phase pulse-width modulated (PWM) rectifier coupled to the AC power source and to an electrical load; a DC link capacitor coupled in parallel to the load and the PWM rectifier; and an active ripple energy storage circuit. The active ripple energy storage circuit has a first terminal, a second terminal and a third terminal, the active ripple energy storage circuit being coupled in parallel to the electrical load, the PWM rectifier and the DC link capacitor via the first terminal and the second terminal, the third terminal being coupled to the second terminal, the active ripple energy storage circuit being configured to selectively absorb and discharge at least part of the ripple energy02-04-2010

Ge Wang, Blacksburg, VA US

Patent application numberDescriptionPublished
20090196393Interior Tomography and Instant Tomography by Reconstruction from Truncated Limited-Angle Projection Data - A system and method for tomographic image reconstruction using truncated limited-angle projection data that allows exact interior reconstruction (interior tomography) of a region of interest (ROI) based on the linear attenuation coefficient distribution of a subregion within 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.08-06-2009
20100202583Systems and Methods for Exact or Approximate Cardiac Computed Tomography - A computed tomography (CT) system has a composite scanning mode in which the x-ray focal spot undergoes a circular or more general motion in the vertical plane facing an object to be reconstructed. The x-ray source also rotates along a circular trajectory along a gantry encircling the object. In this way, a series of composite scanning modes are implemented, including a composite-circling scanning (CCS) mode in which the x-ray focal spot undergoes two circular motions: while the x-ray focal spot is rotated on a plane facing a short object to be reconstructed, the x-ray source is also rotated around the object on the gantry plane. In contrast to the saddle curve cone-beam scanning, the CCS mode requires that the x-ray focal spot undergo a circular motion in a plane facing the short object to be reconstructed, while the x-ray source is rotated in the gantry plane. Because of the symmetry of the mechanical rotations and the compatibility with the physiological conditions, this new CCS mode has significant advantages over the saddle curve from perspectives of both engineering implementation and clinical applications.08-12-2010
20100310037Multi-Parameter X-Ray Computed Tomography - The present invention relates to the field of x-ray imaging. More particularly, embodiments of the invention relate to methods, systems, and apparatus for imaging, which can be used in a wide range of applications, including medical imaging, security screening, and industrial non-destructive testing to name a few. Specifically provided as embodiments of the invention are systems for x-ray imaging comprising: a) a first collimator-and-detector assembly having a first operable configuration to provide at least one first dataset comprising primary x-ray signals as a majority component of its data capable of being presented as a first image of an object subjected to x-ray imaging; b) a second collimator-and-detector assembly having a second operable configuration or wherein the first collimator-and-detector assembly is adjustable to a second configuration to provide at least one second dataset comprising primary and dark-field x-ray signals as a majority component of its data capable of being presented as a second image of the object; and c) a computer operably coupled with the collimator-and-detector assemblies comprising a computer readable medium embedded with processing means for combining the first dataset and the second dataset to extract the dark-field x-ray signals and produce a target image having higher contrast quality than the images based on the first or second dataset alone. Such systems can be configured to comprise at least two collimator-and-detector assemblies or configurations differing with respect to collimator height, collimator aperture, imaging geometry, or distance between an object subjected to the imaging and the collimator-and-detector assembly.12-09-2010
20110105880METHODS FOR IMPROVED SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY USING EXACT AND STABLE REGION OF INTEREST RECONSTRUCTIONS - The present invention provides systems, methods, and devices for improved computed tomography (CT) and, more specifically, to methods for improved single photon computed tomography (SPECT) using exact and stable region of interest (ROI) reconstructions. This technology can be extended across all tomographic modalities. Embodiments provide a method and a system for reconstructing an image from projection data provided by a single photon emission computed tomography scanner comprising: identifying a region of interest in an object; defining an attenuation coefficient and object boundary; computing the generalized Hilbert transform of the data through the defined region of interest and a known subregion; and reconstructing the image with improved temporal resolution at lower radiation doses, wherein the reconstructing comprises performing a reconstruction method that yields an exact and stable reconstruction. Embodiments also provide a method and a system for reconstructing an image from projection data provided by a single photon emission computed tomography scanner comprising: identifying a region of interest in an object; defining an attenuation coefficient and object boundary; and reconstructing the images by minimizing the high order total variation while minimizing the data discrepancy.05-05-2011
20110142316Tomography-Based and MRI-Based Imaging Systems - Tomography limitations in vivo due to incomplete, inconsistent and intricate measurements require solution of inverse problems. The new strategies disclosed in this application are capable of providing faster data acquisition, higher image quality, lower radiation dose, greater flexibility, and lower system cost. Such benefits can be used to advance research in cardiovascular diseases, regenerative medicine, inflammation, and nanotechnology. The present invention relates to the field of medical imaging. More particularly, embodiments of the invention relate to methods, systems, and devices for imaging, including tomography-based and MRI-based applications. For example, included in embodiments of the invention are compressive sampling based tomosynthesis methods, which have great potential to reduce the overall x-ray radiation dose for a patient. To name a few, compressive sensing based carbon nano-tube based interior tomosynthesis systems, tomography-based dynamic cardiac elastography systems, cardiac elastodynamic biomarkers from interior MR imaging, exact and stable interior ROI reconstructions for radial MRI, and interior reconstruction based ultrafast tomography systems are provided.06-16-2011
20110282181EXTENDED INTERIOR METHODS AND SYSTEMS FOR SPECTRAL, OPTICAL, AND PHOTOACOUSTIC IMAGING - The present invention relates to the field of medical imaging. More particularly, embodiments of the invention relate to methods, systems, and devices for imaging, including for tomography-based applications. Embodiments of the invention include, for example, a computed tomography based imaging system comprising: (a) at least one wide-beam gray-scale imaging chain capable of performing a global scan of an object and acquiring projection data relating to the object; (b) at least one narrow-beam true-color imaging chain capable of performing a spectral interior scan of a region of interest (ROI) of and acquiring projection data relating to the object; (c) a processing module operably configured for: (1) receiving the projection data; (2) reconstructing the ROI into an image by analyzing the data with a color interior tomography algorithm, aided by an individualized gray-scale reconstruction of an entire field of view (FOV), including the ROI; and (d) a processor for executing the processing module. The extended interior methods and systems for spectral, optical, and photoacoustic imaging presented in this application can lead to better medical diagnoses by providing images with higher resolution or quality, and can lead to safer procedures by providing systems capable of reducing a patient's exposure time to, and thus quantity of, potentially harmful x-rays. Embodiments of the invention also provide tools for real-time tomography-based analyses.11-17-2011
20110313298FIBER ARRAY FOR OPTICAL IMAGING AND THERAPEUTICS - The present invention relates to the field of optical imaging and therapeutics. More particularly, embodiments of the present invention provide minimally-invasive Fiberoptic Microneedle Devices (FMDs) for light-based therapeutics, which physically penetrate tissue and deliver light directly into the target area below the skin surface (FIG. 12-22-2011

Patent applications by Ge Wang, Blacksburg, VA US

Guanyu Wang, Fairfax, VA US

Patent application numberDescriptionPublished
20100299289SYSTEM AND METHOD FOR OBTAINING INFORMATION ABOUT BIOLOGICAL NETWORKS USING A LOGIC BASED APPROACH - A system and method of obtaining information concerning the structure-function relationship of biological networks can be studied holistically through the ensemble characterization of all the networks that realize a given biological function. A logic-based approach enables significant advances in computability and concept development (minimality and reducibility). The approach is applied to a biologically relevant trajectory and reveals some interesting properties. By using the approach, a cell cycle network is decomposed into three components with the functioning of each component explained.11-25-2010

Guoquan Wang, Charlottesville, VA US

Patent application numberDescriptionPublished
20080200456Substituted 8-Heteroaryl Xanthines - The present invention provides compounds and pharmaceutical compositions that are selective antagonists of A08-21-2008
20090082347PYRROLO[3,2-D]PYRIMIDINES THAT ARE SELECTIVE ANTAGONISTS OF A2B ADENOSINE RECEPTORS - The present invention provides compounds of the following formula and pharmaceutical compositions that are selective antagonists of A03-26-2009
20090163491SUBSTITUTED 8-[6-AMINO-3PYRIDYL]XANTHINES - The present invention provides substituted 8-[6-amino-3-pyridyl]xanthines and pharmaceutical compositions that are selective antagonists of A06-25-2009
20100004445METHODS FOR THE SYNTHESIS OF UNSYMMETRICAL CYCLOALKYL SUBSTITUTED XANTHINES - The present invention provides compounds and pharmaceutical compositions that are selective antagonists of A01-07-2010
20100120765PYRAZOLYL SUBSTITUTED XANTHINES - The present invention provides compounds and pharmaceutical compositions that are selective antagonists of A05-13-2010
20100273780SUBSTITUTED 8-HETEROARYL XANTHINES - The present invention provides compounds and pharmaceutical compositions that are selective antagonists of A10-28-2010

Patent applications by Guoquan Wang, Charlottesville, VA US

Guoquan Wang, Charlottesvlle, VA US

Patent application numberDescriptionPublished
20110082139SUBSTITUTED 8-[6-AMINO-3-PYRIDYL]XANTHINES - The present invention provides substituted 8-[6-amino-3-pyridyl]xanthines and pharmaceutical compositions that are selective antagonists of A04-07-2011

Haining Wang, Vienna, VA US

Patent application numberDescriptionPublished
20100082747REAL-TIME COLLABORATIVE BROWSING - A method, a system, and a computer-readable medium are provided which support a collaborative browsing session. A connection request is received at a first device from a second device. The connection request indicates a request for a collaborative browsing session between the first device and the second device. In response to the connection request, a web page is sent to the second device from the first device. The web page includes embedded computer-executable instructions to support the collaborative browsing session. A browser application at the first device is monitored for a change in state. An indicator of the change in state of the browser application is sent to the second device from the first device.04-01-2010
20110126289CLIENT SIDE USERNAME/PASSWORD CREDENTIAL PROTECTION - A method of protecting username/password (U/P) credentials operates on a client computer that cooperates with an anti-phishing scheme that generates a client warning at the client computer when a suspected phishing website issues a U/P request. At the client computer, a set of S fake U/P credentials is generated when the client warning is heeded, or a set of (S−1) fake U/P credentials are derived from a client-supplied U/P credential provided after the client warning is ignored. The client computer then transmits to the suspected phishing website one of (i) the set of S fake U/P credentials, and (ii) the client-supplied U/P credential along with the set of (S−1) fake U/P credentials.05-26-2011

Jiang Wang, Fairfax, VA US

Patent application numberDescriptionPublished
20090125902ON-DEMAND DISPOSABLE VIRTUAL WORK SYSTEM - An on-demand disposable virtual work system that includes: a virtual machine monitor to host virtual machines, a virtual machine pool manager, a host operating system, a host program permissions list, and a request handler module. The virtual machine pool manager manages virtual machine resources. The host operating system interfaces with a user and virtual machines created with an image of a reference operating system. The host program permissions list may be a black list and/or a white list used to indicate allowable programs. The request handler module allows execution of the program if the program is allowable. If the program is not allowable, the host request handler module: denies program execution and urges a virtual machine specified by the virtual machine pool manager to execute the program. The virtual machine is terminated when the program closes.05-14-2009
20100122343Distributed Sensor for Detecting Malicious Software - Processor(s) for detecting malicious software. A hardware virtual machine monitor (HVMM) operates under a host OS. Container(s) initialized with network application template(s)operate under a guest OS VM. A detection module operates under the guest OS VM includes a trigger detection module, a logging module and a container command module. The trigger detection module monitors activity on container(s) for a trigger event. The logging module writes activity report(s) in response to trigger event(s). The container command module issues command(s) in response to trigger event(s). The command(s) include a container start, stop and revert commands. A virtual machine control console operates under the host OS and starts/stops the HVMM. A container control module operates under the guest OSVM and controls container(s) in response to the command(s). The server communication module sends activity report(s) to a central collection network appliance that maintains a repository of activities for infected devices.05-13-2010
20110167492Virtual Browsing Environment - An embodiment for providing a secure virtual browsing environment includes creating a virtual browsing environment with a virtualized operating system sharing an operating system kernel of a supporting operating system and executing the browser application within the virtual browsing environment. Another embodiment includes receiving a website selection within a browser application, determining if the website selection corresponds to a secure bookmark, and creating a second virtual browsing environment and executing the browser application within the second virtual browsing environment to access the website selection when the website selection corresponds to a website specified as a secure bookmark. Yet another embodiment includes monitoring operation of the operating system within the at least one virtual browsing environment, determining when the operation of the operating system includes potential malicious activity, and terminating the virtual browsing environment when the operation includes potential malicious activity.07-07-2011

Patent applications by Jiang Wang, Fairfax, VA US

Jianjun Wang, Williamsburg, VA US

Patent application numberDescriptionPublished
20090011204CARBON NANOSTRUCTURES AND METHODS OF MAKING AND USING THE SAME - Carbon nanoflakes, methods of making the nanoflakes, and applications of the carbon nanoflakes are provided. In some embodiments, the carbon nanoflakes are carbon nanosheets, which are less than 2 nm thick. The carbon nanoflakes may be made using RF-PECVD. Carbon nanoflakes may be useful as field emitters, for hydrogen storage applications, for sensors, and as catalyst supports.01-08-2009

Jianmin Wang, Blacksburg, VA US

Patent application numberDescriptionPublished
20100075961MODULATORS OF GLUCOCORTICOID RECEPTOR, AP-1, AND/OR NF-kB ACTIVITY AND USE THEREOF - Novel non-steroidal compounds are provided which are useful in treating diseases associated with modulation of the glucocorticoid receptor, AP-1, and/or NF-κB activity including inflammatory and immune diseases, obesity and diabetes having the structure of formula (I), its enantiomers, diastereomers, or a pharmaceutically acceptable salt, or hydrate, thereof, wherein X is (Ia); or X is (Ib); or X is (Ic); (Id) is heterocycle or heteroaryl; E is —N—, —NR03-25-2010
20100184814Ester Derivatives of Losartan, Methods for Their Preparation, and Uses Thereof - The present invention relates to compounds represented by the formula (I) as prodrugs of the formula (II) (Losartan) and their salts, solvates, hydrates, polymorphs, optical isomers, enantiomers, and pharmaceutical compositions comprising these compounds and methods of preparing them and administering them for the treatment of circulatory diseases such as hypertension, congestive heart failure, angina, and the like.07-22-2010

Lixin Wang, Charlottesville, VA US

Patent application numberDescriptionPublished
20080274550Use Of Replicators To Prevent Gene Silencing - Regulatory elements, specifically replicators and transgene constructs containing replicator nucleic acid sequences, are disclosed herein. Methods of using replicators and transgene constructs including replicators to inhibit, delay, or prevent gene silencing are also disclosed herein.11-06-2008

Qiong J. Wang, Reston, VA US

Patent application numberDescriptionPublished
20090042798T CELL RECEPTORS AND RELATED MATERIALS AND METHODS OF USE - The invention provids an isolated or purified T cell receptor (TCR) having antigenic specificity for a cancer antigen, e.g., a renal cell carcinoma antigen, wherein the TCR recognizes the cancer antigen in a major histocompatibility complex (MHC)-independent manner. Also provided are related polypeptides, proteins, nucleic acids, recombinant expression vectors, isolated host cells, populations of cells, antibodies, or antigen binding portions thereof, and pharmaceutical compositions. The invention further provides a method of detecting the presence of cancer in a host and a method of treating or preventing cancer in a host using the inventive TCRs or related materials.02-12-2009
20110104129T CELL RECEPTORS AND RELATED MATERIALS AND METHODS OF USE - The invention provides an isolated or purified T cell receptor (TCR) having antigenic specificity for a cancer antigen, e.g., a renal cell carcinoma antigen, wherein the TCR recognizes the cancer antigen in a major histocompatibility complex (MHC)-independent manner. Also provided are related polypeptides, proteins, nucleic acids, recombinant expression vectors, isolated host cells, populations of cells, antibodies, or antigen binding portions thereof, and pharmaceutical compositions. The invention further provides a method of detecting the presence of cancer in a host and a method of treating or preventing cancer in a host using the inventive TCRs or related materials.05-05-2011

Ray Wang, Mclean, VA US

Patent application numberDescriptionPublished
20090189739PASSIVE VOICE ENABLED RFID DEVICES - Passive voice enabled RFID devices. The passive voice enabled RFID devices include a power harvesting circuit that converts natural and artificial energy sources to voltage and current to power the device, thus, the device does not require a battery. It provides a voice capable RFID device with a power harvesting circuit that is powered by harvesting energy from various artificial or energy sources and/or natural energy sources such as: voice signals, other electromagnetic waves, sun light, vibrations, RF noise, etc. and used voice signals received to uniquely identify a generator of the voice signals or other sound signals.07-30-2009
20110019587METHOD AND SYSTEM FOR DYNAMIC INFORMATION EXCHANGE ON LOCATION AWARE MESH NETWORK DEVICES - A method and system for dynamic information exchange on mesh network devices. The dynamic information exchange includes allowing a mesh network device to communicate location information with a network device at pre-determined physical location and invite social contacts of the mesh network device to come to the pre-determined physical location. The network device sends various types of electronic messages (e.g., text message, e-mail, etc.) on a mesh network and/or a non-mesh communications network (e.g., the Internet, etc.) and to social networking sites. The dynamic information exchange also includes exchanging plural activity messages including a security identification authorization message for allowing access to a secure area, a building management message for automatically and dynamically managing heating, ventilation and/or air conditioning (HVAC) and/or an emergency location message for providing three-dimensional (3D) emergency location information.01-27-2011
20110210816MESH NETWORK REMOTE CONTROL DEVICE - The mesh network remote control device is able to dynamically exchange information with other mesh network devices via a mesh network, partial mesh network, ad-hoc network or with an non-mesh network such as the Internet or an intranet. The mesh network remote control device controls devices connected to such mesh or non-mesh networks. The mesh network remote control device accepts commands from mesh network devices, non-mesh network devices, non-mesh communications networks (e.g., URLs, device commands, social networking logins, etc.), stores the original commands and transforms the original commands into simple display commands that are used by a user to control remote mesh network or non-mesh network devices.09-01-2011
20110235627METHOD AND SYSTEM FOR DYNAMIC INFORMATION EXCHANGE ON A MESH NETWORK IN A VEHICLE - A method and system for dynamic information exchange on a mesh network in a vehicle. The dynamic information exchange includes determining if a vehicle needs immediate repair. And if so, automatically determining a nearest repair facility and sending a message to the nearest repair facility indicating the vehicle will be arriving shortly. The message also includes a list of parts required to repair the vehicle. The dynamic information exchange on the mesh network also includes information about vehicle movement, including, an accident impact, theft or illness or injury to an operator of the vehicle.09-29-2011

Patent applications by Ray Wang, Mclean, VA US

Ruxi Wang, Blacksburg, VA US

Patent application numberDescriptionPublished
20100027304ELECTRICAL POWER SYSTEM WITH HIGH-DENSITY PULSE WIDTH MODULATED (PWM) RECTIFIER - An electrical power system includes an alternating current (AC) power source configured to output an AC signal, a single phase pulse-width modulated (PWM) rectifier coupled to the AC power source and to an electrical load; a DC link capacitor coupled in parallel to the load and the PWM rectifier; and an active ripple energy storage circuit. The active ripple energy storage circuit has a first terminal, a second terminal and a third terminal, the active ripple energy storage circuit being coupled in parallel to the electrical load, the PWM rectifier and the DC link capacitor via the first terminal and the second terminal, the third terminal being coupled to the second terminal, the active ripple energy storage circuit being configured to selectively absorb and discharge at least part of the ripple energy02-04-2010

Shuo Wang, Blacksburg, VA US

Patent application numberDescriptionPublished
20080204126COMMON MODE NOISE REDUCTION USING PARASITIC CAPACITANCE CANCELLATION - A negative capacitance is developed by configuring an inductor as two inversely or opposingly coupled windings having different numbers of turns and connecting a capacitance to a center tap between the two windings. The negative capacitance is developed on the side of the inductor having the winding with the greater number of turns. The negative capacitance so developed may advantageously be used to cancel any capacitance or parasitic capacitance desired for reducing power loss, increasing switching speed or reducing or eliminating common mode noise in a swiched circuit such as a switched power converter.08-28-2008
20110050358Electromagnetic Interference Noise Separator - Improved performance of a noise separator circuit capable of separating common mode (CM) and differential mode (DM) components of electromagnetic interference (EMI) noise are provided by arrangement of terminating impedances such that the circuit is fully symmetric with respect of a pair of input ports. The noise separator circuit is further improved by perfecting features for canceling effects of parasitic inductances and capacitances, parasitic capacitance and inductance between circuit connections such as printed circuit board traces, minimizing leakage inductance effects of pairs of coupled inductors and mutual inductance effects between pairs of coupled inductors, providing sufficient magnetizing inductance for low frequency response, and preventing saturation of inductors using switched attenuators, providing a plurality of ground planes, choices of terminating resistors and circuit layout.03-03-2011

Patent applications by Shuo Wang, Blacksburg, VA US

Tianxin Wang, Columbia, VA US

Patent application numberDescriptionPublished
20100297604METHODS AND REAGENTS FOR VIRUS ISOLATION AND DETECTION - The present invention relates to reagents and methods used in virus isolation and analysis.11-25-2010

Patent applications by Tianxin Wang, Columbia, VA US

Tiehong Wang, Arlington, VA US

Patent application numberDescriptionPublished
20100057887SYSTEM AND METHOD FOR PROVIDING LOCALLY APPLICABLE INTERNET CONTENT WITH SECURE ACTION REQUESTS AND ITEM CONDITION ALERTS - Optimized delivery of locally applicable Internet content to users. A cache of locally applicable Internet content is maintained in a local content server, based upon a monitoring of locations of users requesting Internet content. Requests for Internet content are received from user equipment through a wireless network base station, and served from the local content server, which is logically proximate to the wireless network base station. The caching of locally applicable Internet content may be maintained on a layered basis. Secure action request receipt and corresponding performance, and item condition alerts are also described.03-04-2010
20110173073Method and system for improving client server transmission over fading channel with wireless location and authentication technology via electromagnetic radiation - Wireless personal area network (Zigbee, Bluetooth, UWB) and wireless identification technologies (Near Field Communication (NFC), Radio Frequency Identification (RFID)) are implemented in particular client server functions and communications. Connected with an Authentication Server, a wireless HUB authenticates user identification and provides the user with access to secure data communication with a wireless terminal such as a cellular phone or a PDA. A Location Server provides user locations via methods such as RSSI, TDOA, and GPS and sends location information to a Center Control Server and the Authentication Server. With location information, the Center Control Server initiates and optimizes secure information processes and coordinates the functions of servers and user terminals.07-14-2011
20110208590System and method for providing locally applicable internet content with secure action requests and item condition alerts - Optimized delivery of locally applicable Internet content to users. A cache of locally applicable Internet content is maintained in a local content server, based upon a monitoring of locations of users requesting Internet content. Requests for Internet content are received from user equipment through a wireless network base station, and served from the local content server, which is logically proximate to the wireless network base station. The caching of locally applicable Internet content may be maintained on a layered basis. Secure action request receipt and corresponding performance, and item condition alerts are also described.08-25-2011
20110211113Method and apparatus for multimedia communications with different user terminals - Multimedia communications with cross-layer optimization in multimedia communications with different user terminals. Various optimization for the delivery of multimedia content across different channels are provided concurrently to a plurality of user terminals.09-01-2011
20110246370FACILITATING TRANSACTIONS USING UNSUPPORTED TRANSACTION IDENTIFIER TYPES - Facilitating transactions using unsupported transaction identifier types entails receiving a unique transaction indicator having a transaction indicator type, and an indication that a corresponding transaction is to be carried out with a device that does not adequately support the transaction indicator type, and sending information to the device to allow the corresponding transaction to be completed. In one example, an encoded version of the unique transaction indicator is prepared by dividing an image constituting the unique transaction indicator into a plurality of sub-areas, and representing each of the sub-areas using the characters, which respectively represent the content of each sub-area.10-06-2011
20120009944System and method for providing locally applicable internet content with secure action requests and item condition alerts - Optimized delivery of locally applicable Internet content to users. A cache of locally applicable Internet content is maintained in a local content server, based upon a monitoring of locations of users requesting Internet content. Requests for Internet content are received from user equipment through a wireless network base station, and served from the local content server, which is logically proximate to the wireless network base station. The caching of locally applicable Internet content may be maintained on a layered basis. Secure action request receipt and corresponding performance, and item condition alerts are also described.01-12-2012

Patent applications by Tiehong Wang, Arlington, VA US

Tiehong Wang, Arlingrton, VA US

Patent application numberDescriptionPublished
20100191593METHOD AND SYSTEM FOR IMPROVING CLIENT SERVER TRANSMISSION OVER FADING CHANNEL WITH WIRELESS LOCATION AND AUTHENTICATION TECHNOLOGY VIA ELECTROMAGNETIC RADIATION - Wireless personal area network (Zigbee, Bluetooth, UWB) and wireless identification technologies (Near Field Communication (NFC), Radio Frequency Identification (RFID)) are implemented in particular client server functions and communications. Connected with an Authentication Server, a wireless HUB authenticates user identification and provides the user with access to secure data communication with a wireless terminal such as a cellular phone or a PDA. A Location Server provides user locations via methods such as RSSI, TDOA, and GPS and sends location information to a Center Control Server and the Authentication Server. With location information, the Center Control Server initiates and optimizes secure information processes and coordinates the functions of servers and user terminals.07-29-2010

Tiehong Ann Wang, Arlington, VA US

Patent application numberDescriptionPublished
20110149148Methods, systems and apparatus for displaying the multimedia information from wireless communication networks - Video signals for a mobile terminal are converted to accommodate reproduction by an alternative display terminal. The video signal is processed to provide a converted video signal appropriate for an alternative display terminal that is separate from the mobile terminal. This converted video signal is then provided for the alternative display terminal to accommodate the corresponding video display on a screen provided by the alternative (e.g., external) display terminal.06-23-2011

Tiejun Wang, Arlington, VA US

Patent application numberDescriptionPublished
20110208590System and method for providing locally applicable internet content with secure action requests and item condition alerts - Optimized delivery of locally applicable Internet content to users. A cache of locally applicable Internet content is maintained in a local content server, based upon a monitoring of locations of users requesting Internet content. Requests for Internet content are received from user equipment through a wireless network base station, and served from the local content server, which is logically proximate to the wireless network base station. The caching of locally applicable Internet content may be maintained on a layered basis. Secure action request receipt and corresponding performance, and item condition alerts are also described.08-25-2011
20110246370FACILITATING TRANSACTIONS USING UNSUPPORTED TRANSACTION IDENTIFIER TYPES - Facilitating transactions using unsupported transaction identifier types entails receiving a unique transaction indicator having a transaction indicator type, and an indication that a corresponding transaction is to be carried out with a device that does not adequately support the transaction indicator type, and sending information to the device to allow the corresponding transaction to be completed. In one example, an encoded version of the unique transaction indicator is prepared by dividing an image constituting the unique transaction indicator into a plurality of sub-areas, and representing each of the sub-areas using the characters, which respectively represent the content of each sub-area.10-06-2011

Victor W. Wang, Fairfax, VA US

Patent application numberDescriptionPublished
20110031322Novel air regulation device and air conditioning system - A multiple zone HVAC system comprises powered flow rate adjustable registers. It can further comprise zone controllers that can wirelessly control the registers, and a central controller that controls the HVAC unit and coordinates zone controllers.02-10-2011

Wen Wang, Charlottesville, VA US

Patent application numberDescriptionPublished
20100238794N+1 Protection Using a Processor-Based Protection Device - In an N+1 protection scheme for a router in a data or telecommunications network, a processor-based protection unit has a replica device handle, corresponding to each of the N working units, stored in the protection unit's local memory. Each replica device handle is an image of the connections provided by the corresponding working unit. In one implementation, upon detection of a failure of one of the working units, the router's controller unit sends a single command to instruct the protection unit to reconfigure itself using the corresponding locally stored replica device handle to assume the routing functions of the failed working unit.09-23-2010

Xinyuan Wang, Clifton, VA US

Patent application numberDescriptionPublished
20080222414Transparent Authentication of Continuous Data Streams - A system, apparatus and method for transparently authenticating continuous data streams. A continuous data stream is divided into data blocks. Block authentication code(s) are determined using the data in the data blocks, a hash function and a key. The block authentication code(s) are embedded into the data block(s) by adjusting the timing between the packets in the data block(s). Timing delays may be used to separate the blocks. The continuous data stream may be received and authenticated by comparing an extracted block authentication code with a new calculated content-based block authentication code.09-11-2008
20080222729Containment of Unknown and Polymorphic Fast Spreading Worms - A worm containment system comprising a host computing machine, a virtual machine running under the control of a virtual machine monitor, a worm detector, a diverter and a buffer. The host computing machine has a host operating system and host application(s). The virtual machine has a clone of the host operating system and a clone of the host application(s). The worm detector is configured to monitor the virtual machine traffic for signs of worm propagation. The splitter is configured to duplicate packets intended for the host computing machine into diverted packets and buffered packets. The diverter is configured to route the diverted packets to the virtual machine. The buffer is configured to store the buffered packets and then forward the buffered packets to the host operating system on indication from the worm detector that no worm propagation behavior was detected.09-11-2008
20080232363Interval Centroid Based Watermark - An interval centroid-based watermark encoder encodes a watermark into a packet flow. Intervals are defined for the packet flow. Some of the intervals are selected as group A intervals while other intervals are selected as group B intervals. Group A and group B intervals are paired and assigned to watermark bits. A first or second value may be encoded by increasing the relative packet time between packets in either the group A (for the first bit value) or group B (for the second bit value) interval(s) of the interval pair(s) assigned to the watermark bits that are to represent the first or second bit value and the beginning of the same group interval(s). The relative packet times may be measured by a decoder and used to calculate a centroid difference for each interval pair. The centroid differences may be used to reconstruct the watermark.09-25-2008
20100067377Live Botmaster Traceback - Embodiments locate a botmaster on a network. A honeynet host is configured to join a botnet and generate a watermarked packet flow by applying a watermark to an outgoing packet flow in response to commands from the botmaster. The watermark is applied to the outgoing packet flow by: choosing distinct packets from the outgoing packet flow; forming packet pair(s) from the distinct packets, that include a reference packet and an encoding packet; and encoding bits in the watermark to the packet pair(s) by increasing the length of the encoding packet when watermark bits have a predetermined value. The cooperating node(s) are configured to: inspect passing packet flows for the watermarked packet flow and generate tracking information related to detection of the watermarked packet flow. The path determination processor is configured to analyze the tracking information to locate a path taken by the watermarked packet flow.03-18-2010
20100195819Interval Centroid Based Watermark Decoder - An interval centroid-based watermark encoder encodes a watermark into a packet flow. Intervals are defined for the packet flow. Some of the intervals are selected as group A intervals while other intervals are selected as group B intervals. Group A and group B intervals are paired and assigned to watermark bits. A first or second value may be encoded by increasing the relative packet time between packets in either the group A (for the first bit value) or group B (for the second bit value) interval(s) of the interval pair(s) assigned to the watermark bits that are to represent the first or second bit value and the beginning of the same group interval(s). The relative packet times may be measured by a decoder and used to calculate a centroid difference for each interval pair. The centroid differences may be used to reconstruct the watermark.08-05-2010

Yin Wang, Blacksburg, VA US

Patent application numberDescriptionPublished
20120014138PULSE WIDTH MODULATED RESONANT POWER CONVERSION - A power converter including a resonant circuit is controlled by pulse width modulation (PWM) of a switching circuit to control current in the resonant circuit near the frequency of the resonant circuit (a null-immittance criterion) in order to control current and voltage at the output of the resonant circuit. Further control of voltage can be performed by PWM of a switching circuit at the output of the resonant circuit such that centers of the duty cycles of respective switches for the output of the resonant circuit are substantially synchronized and substantially symmetrical about centers of said duty cycles of respective switches at the input of the resonant circuit. Thus, operation of the converter is substantially simplified by using only PWM, a wide range of input and output voltages can be achieved and the converter circuit can be configured for bi-directional power transfer.01-19-2012

Yingping Wang, Richmond, VA US

Patent application numberDescriptionPublished
20090304732Cryptosporidium Hominis Genes and Gene Products for Chemotherapeutic, Immunoprophylactic and Diagnostic Applications - genes and gene products are provided. The genes and gene products are useful for chemotherapeutic, immunotherapeutic, immunoprophylactic and diagnostic applications.12-10-2009

Yongping Wang, Leesburg, VA US

Patent application numberDescriptionPublished
20120002160FRAME DESIGN FOR ELECTRONIC SPECTACLES - A first device is provided. The first device comprises a frame, where the frame further comprises: a lens housing adapted to support a first lens and a second lens, a first temple coupled to the lens housing, and a second temple coupled to the lens housing. The first device further comprises a first conductive path provided by one or more frame elements from the first temple to the lens housing and a second conductive path provided by one or more frame elements from the first temple to the lens housing. The first conductive path is electrically isolated from the second conductive path.01-05-2012