Zhu, VA
Chao Zhu, Mclean, VA US
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20080254104 | Advanced functional biocompatible polymeric matrix containing nano-compartments - The present invention provides a novel biomaterial which is a hybrid, self-assembling biopolymeric networked film that is functionalized through hydrophobic interactions with vesicles loaded with bioactive agents. The biomaterial compound is a polymeric network of hydrophobically modified chitosan scaffolds that is taken from solution and formed as a solid film. This solid state film is capable of hydrophobic interactions with the functionalized vesicles. The vesicles include one or more lamellar structures forming one or more nano-compartments that are capable of containing similar or alternative active moieties within. Use of the film results in a degradation of the chitosan scaffold thereby releasing the active moieties within the vesicles from the scaffold. Application of the current invention occurs through various delivery mechanisms and routes of administration as will be described herein. | 10-16-2008 |
Chenxi Zhu, Fairfax, VA US
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20120183093 | Power Setting and Pre-Coding for Wireless Data Transmission from Multiple Locations to a Single Device - In one embodiment, a mobile device determines channel coefficient matrices for radio transmission from antennas at a plurality of locations, generates a power scaling vector based on the channel coefficient matrices, and selects one or more pre-coding matrices based on at least in part the power scaling vector. The antennas are operably connected to one or more base stations. The mobile device transmits the selected pre-coding matrices and the power scaling vector to the base stations, causing the base stations to transmit further data to the mobile device based on the selected pre-coding matrices and the power scaling vector. | 07-19-2012 |
20120218911 | Transceiver Set Assignment Scheme For A Distributed Antenna System - According to one embodiment, a method includes establishing a plurality of wired connections between a base station and a plurality of geographically distributed remote transceivers. Each remote transceiver of the plurality of remote transceivers has one or more physical antenna ports. The plurality of remote transceivers are assigned to a plurality of sets where each set has one or more of the plurality of remote transceivers. One or more logical ports is assigned to each set of the plurality of sets. Each logical port of a set corresponds to at least one physical antenna port of the one or more remote transceivers of the respective set. Data traffic is sent from the base station to the endpoint using at least one wireless connection between the endpoint and at least one physical antenna port of the one or more remote transceivers of a first set of the plurality of sets. | 08-30-2012 |
20120220333 | Transceiver Set Selection And Communication Scheme For A Distributed Antenna System - According to one embodiment, a method includes establishing a plurality of wired connections between a plurality of nodes. The plurality of nodes include a base station and a plurality of geographically distributed remote transceivers. The base station is assigned to a first set and the base station and a first remote transceiver of the plurality of remote transceivers are assigned to a second set. Each set is configured to wirelessly transmit a respective channel reference signal. Signal quality feedback that indicates the strength of the respective channel reference signals is received from an endpoint. One of the sets is selected to use for transmitting data traffic from the base station to the endpoint based on the signal quality feedback. The method further includes transmitting data traffic from the base station to the endpoint using at least one wireless connection between the endpoint and each node of the selected set. | 08-30-2012 |
20120289281 | Beamforming From Multiple Transmission Sites - According to one embodiment, a method includes selecting a first transmission site from a plurality of transmission sites based on the quality of a first channel between the first transmission site and an endpoint. The method further includes determining a first precoding matrix corresponding to the first transmission site. The first precoding matrix may be applied to data transmitted by the first transmission site to the endpoint. The method further includes determining a second precoding matrix corresponding to a second transmission site of the plurality of transmission sites. The second precoding matrix may be determined based on at least a first spatial direction that is calculated based on at least the first channel. | 11-15-2012 |
20130023277 | Method and Apparatus for Centrally Managed Allocation of Bandwidth in a Wireless Network - A method for allocating bandwidth in a wireless network includes communicating wirelessly with at least one endpoint using a first frequency bandwidth. The method may also include receiving a measurement of a signal quality from the at least one endpoint and communicating an indication of the signal quality to a server. The method may further include receiving from the server a second frequency bandwidth based on the signal quality and a cost per unit of frequency bandwidth. The second frequency bandwidth may indicate an amount of frequency bandwidth to use in communicating wirelessly with the at least one endpoint. The method may additionally include communicating wirelessly with the at least one endpoint using the second frequency bandwidth. | 01-24-2013 |
20130028113 | Method and Apparatus for Locally Managed Allocation of Bandwidth in a Wireless Network - A method for fabricating read-only copy protected optical medium comprising: a substrate ( | 01-31-2013 |
20130083826 | SPREADING DATA SYMBOLS AMONG MULTIPLE LAYERS IN A MIMO TRANSMISSION SCHEME - According to one embodiment, a method includes encoding a bit stream into a plurality of codewords. For each codeword of the plurality of codewords, a plurality of data symbols that represent the respective codeword are generated. Each data symbol of the respective codeword encodes one or more bits of the respective codeword into one or more modulation characteristics of a carrier wave. The method further includes spreading, by one or more processors, each data symbol of at least a subset of at least one codeword of the plurality of codewords among a plurality of layers such that each layer includes a portion of the respective data symbol. Information indicated by the plurality of layers is transmitted to an transceiver. | 04-04-2013 |
20130121439 | Design of a Global Codebook for Coordinated Multi-Point Processing - In accordance with one or more embodiments of the present disclosure a method for generating a codebook comprises generating a plurality of wireless communication channel representations. The method further comprises generating a precoding matrix for each of the plurality of wireless communication channel representations. The method additionally comprises performing a clustering operation on the precoding matrices to determine a plurality of centroids associated with the precoding matrices. Also the method includes determining codewords based on the centroids and generating a codebook based on the codewords. | 05-16-2013 |
20130122946 | SYSTEM AND METHOD FOR SELECTING TRANSCEIVERS TO PROVIDE WIRELESS COMMUNICATION SERVICE FOR A WIRELESS USER ENDPOINT - In accordance with one or more embodiments of the present disclosure a method for selecting transceivers to provide wireless communication service for a wireless user endpoint comprises determining at least one characteristic of at least one communication channel between a wireless user endpoint and a first plurality of transceivers. The determination of the at least one characteristic is based on a reference signal generated by the wireless user endpoint for reception by the first plurality of transceivers. The method further comprises analyzing the at least one characteristic of the at least one communication channel. The method additionally comprises selecting at least one transceiver of the first plurality of transceivers to provide wireless communication service for the wireless user endpoint. The selection of the at least one transceiver is based on the at least one characteristic of the at least one communication channel. | 05-16-2013 |
20130194997 | Low Power Narrowband Operation By An Endpoint - According to one embodiment, a method includes receiving a communication from a transceiver. An endpoint searches a search space for one or more control signals addressed to the endpoint. The search space includes one or more subcarrier frequencies of the plurality of subcarrier frequencies that are located within the narrowband portion of the frequency range and no subcarrier frequencies located outside the narrowband portion of the frequency range. The endpoint decodes at least one control signal addressed to the endpoint and transmitted using at least subcarrier frequency of the search space. The at least one decoded control signal indicates at least one time and at least one set of subcarrier frequencies of the plurality of subcarrier frequencies used to transmit at least one data signal of the communication to the endpoint. The method further includes recovering, by the endpoint, the at least one data signal transmitted to the endpoint. | 08-01-2013 |
20130195072 | Enhanced Control Signals Multiplexed With Data Signals - According to one embodiment, a method includes scheduling at least one time and at least one set of subcarrier frequencies to be used to transmit each of a plurality of data signals. Control signals may be addressed to at least one endpoint and may indicate at least one time and at least one set of subcarrier frequencies to be used to transmit one or more of the data signals to the at least one endpoint. For each control signal, at least one time and at least one set of frequencies selected from the frequency range to be used to transmit the control signal may be scheduled. At least one of the plurality of control signals and at least one of the plurality of data signals are scheduled to be transmitted simultaneously by the transceiver. The data signals and the control signals are transmitted to the plurality of endpoints. | 08-01-2013 |
20130195217 | PRECODING FOR WIRELESS SIGNALS - A system for determining precoding for a wireless signal may include a derivation module and a selection module. The derivation module may be configured to determine precoding information for a composite channel. The composite channel may represent characterizations of multiple wireless paths established between multiple receiving antennas and multiple transmitting antennas. The transmitting antennas may be distributed among multiple transmission points. The selection module may further be configured to select a codeword for each transmission point from a subset of predefined codewords based on the precoding information. The codeword for each transmission point may be used to manipulate data signals sent over the wireless paths established between the receiving antennas and the transmitting antennas of the respective transmission point. | 08-01-2013 |
20130244640 | MULTIPLE TIME ADVANCE FOR RADIO ACCESS NETWORKS - In an example embodiment, a system may include a mobile terminal. The mobile terminal may be configured to receive a first signal including a first time advance value. The first signal may be transmitted by a first base station. The mobile terminal may be further configured to receive a second signal. The second signal may be transmitted by a second base station. The mobile base station may be further configured to determine a difference in propagation delay between the first and second signals. The mobile terminal may be further configured to determine a second time advance value by correlating the first time advance value with the difference in propagation delay. | 09-19-2013 |
20130301526 | SIGNALING SCHEME FOR COORDINATED TRANSMISSIONS - A method of signal transmission in a wireless communications network is disclosed. The method includes identifying a particular transmission point to transmit to a mobile device in a particular transmission and determining whether the particular transmission point will operate at a power level equivalent to that of a serving cell of the mobile device. The method further includes transmitting to the mobile device an identification of the value of a cell-specific parameter associated with the cell of the particular transmission point, if the particular transmission point will not operate at a power level equivalent that of the serving cell. The method still further includes transmitting to the particular transmission point an identification of a value of the cell-specific parameter associated with the serving cell, if the particular transmission point will operate at a power level equivalent to a power level of the serving cell. | 11-14-2013 |
20130308474 | COORDINATED MULTIPOINT RESOURCE MANAGEMENT - A method for resource management includes determining a Coordinated Multi-point Processing (CoMP) resource management set of a user equipment (UE), receiving a set of channel state information reference signals (CSI-RS) at the UE from a transmission point (TP) included within the CoMP resource management set, determining a resource management parameter based upon the CSI-RS signals, and sending the determined resource management parameter to the TP. The CoMP resource management set includes a plurality of candidate TPs for which downlink communication may be established with the UE. | 11-21-2013 |
20140016536 | ENHANCING COORDINATED MULTI-POINT PROCESSING TRANSMISSION THROUGH RESOURCE ELEMENT MUTING - A system and method of signal transmission in a wireless communications network is disclosed. A coordinated transmission is transmitted from a plurality of base stations, each including a transmission point. Each transmission point is configured to transmit a cell specific reference signal in a particular set of resource elements. Additionally, a determination is made regarding which of the plurality of base stations will serve as a lead base station in the coordinated transmission and data is mapped to all available resource elements in a physical resource block, except the resource elements in which the lead base station is configured to transmit a cell-specific reference signal. Further, each remaining base station is instructed to mute transmissions in the particular set of resource elements in which the corresponding transmission point is configured to transmit a cell specific reference signal. | 01-16-2014 |
20140098660 | METHOD AND SYSTEM FOR OPTIMIZED ACCESS OF A PHYSICAL RANDOM ACCESS CHANNEL - A method for optimized access of a physical random access channel (PRACH) includes sampling a plurality of mapped zones associated with a base station. Each of the mapped zones has a plurality of endpoints. The method further includes determining a subset of disconnected endpoints in the given mapped zone where the disconnected endpoints are disconnected from a wireless network. The method also includes estimating a PRACH load based on the subset of disconnected endpoints. Additionally, based on whether the estimated PRACH load is a pre-determined factor larger than an original PRACH allocation, the method includes increasing the PRACH allocation to accommodate reconnection of the subset of disconnected endpoints in the given mapped zone. | 04-10-2014 |
20140161049 | System and Method for User-Over-Control Plane Messaging in a Wireless Network - A method is provided for managing a wireless network traffic by comprising designating a first resource block of a first base station for access by a random access channel (RACH). The method additionally comprises designating a first plurality of random access subframes associated with the first resource block for access by a user-over-control plane message, and receiving a random access signal at the first base station over a subframe from an endpoint. The random access signal is received on the RACH using a wireless network and is attempting to access one of the first plurality of designated random access subframes. Further, the method comprises determining if the random access signal is a user-over-control plane message, and processing the random access signal on the one of the first plurality of designated random access subframes. | 06-12-2014 |
20140169283 | System and Method for Optimized Access Messaging in a Wireless Network - A method is provided for managing wireless network traffic that includes designating a first resource block of a macro base station and a second resource block of a small cell base station for access by a physical random access channel (PRACH). The method further includes designating a first random access subframe associated with the first resource block and a second random access subframe associated with the second resource block for access by a random access channel message. The first random access subframe has a first allocation of random access signatures that are configured to receive a plurality of random access requests. The second random access subframe is time-aligned with the first random access subframe and has a second allocation of random access signatures that are configured to receive a plurality of random access requests. | 06-19-2014 |
20140204779 | WIRELESS COMMUNICATION PRECODER DETERMINATION - According to an aspect of an embodiment, a method of determining a precoder for wireless communications may include acquiring first channel information associated with a first channel between a first node of a wireless communication network and a second node of the wireless communication network. The first node may be configured to transmit a first wireless signal in a wireless communication resource to the second node via the first channel. The method may further include acquiring second channel information associated with a second channel between the first node and a third node of the wireless communication network. The third node being may be configured to receive a second wireless signal transmitted in the wireless communication resource. Additionally, the method may include determining a precoder for transmission of the first wireless signal based on the first channel information and the second channel information. | 07-24-2014 |
20140269494 | NETWORK SUPERVISED WIRELESS DEVICE NEIGHBOR DISCOVERY - A method of discovering neighboring wireless devices may include assigning a discovery channel resource to a transmitting wireless device. The transmitting wireless device may accordingly be configured to transmit a neighbor discovery signal based on the discovery channel resource. The method may further include receiving neighbor discovery signal information associated with the neighbor discovery signal as received by a receiving wireless device that may be configured to receive the neighbor discovery signal. Additionally, the method may include directing the transmitting wireless device and the receiving wireless device to participate in device-to-device communication with each other based on the neighbor discovery signal information. | 09-18-2014 |
20140269528 | NETWORK SUPERVISED DEVICE-TO-DEVICE COMMUNICATION - A method of supervising device-to-device communication may include determining that a first wireless device and a second wireless device are configured to communicate with each other through device-to-device communication as a device-to-device pair. The method may further include assigning a pair identifier to the device-to-device pair. The pair identifier may be configured to allow the device-to-device pair to communicate with each other and an access point of a wireless communication network while protecting from eavesdropping. Further, the method may include directing the first wireless device and the second wireless device to use the pair identifier while participating in the device-to-device communication. | 09-18-2014 |
20140269668 | SIGNAL TIMING IN DEVICE-TO-DEVICE COMMUNICATION - A method of compensating for transmitting to multiple devices during device-to-device (D2D) communications may include determining that a receiving wireless device of a device-to-device (D2D) pair may experience a timing conflict. The timing conflict may be with respect to the receiving wireless device receiving at least a portion of a D2D communication transmitted by a transmitting wireless device of the D2D pair while the receiving wireless device is transitioning between a transmitting mode and a receiving mode. The method may also include adjusting the D2D communication to compensate for the timing conflict. | 09-18-2014 |
20140274183 | WIRELESS RESOURCE ALLOCATION OF DEVICE-TO-DEVICE COMMUNICATION - A method of allocating a wireless communication resource to a device-to-device (D2D) pair of wireless devices may include determining an access-point interference threshold of an access point of a wireless communication network. The method may further include determining a device-to-device (D2D) signal power of a D2D signal at the access point. The D2D signal may be associated with D2D communications between a D2D pair of wireless devices. The method may also include assigning a wireless communication resource to the D2D pair based on a comparison of the access-point interference threshold with an access-point interference value where the access-point interference value is based on the determined D2D signal power at the access point. | 09-18-2014 |
20140274192 | POWER CONTROL OF NEIGHBOR DISCOVERY SIGNALS - A method of adjusting power of a neighbor discovery signal may include determining a maximum transmission power of a transmitting wireless device. The transmitting wireless device may be configured to transmit a neighbor discovery signal to one or more receiving wireless devices. The one or more receiving wireless devices may be discovered neighbor wireless devices of the transmitting wireless device and may be configured to receive the neighbor discovery signal. The method may further include determining a power level of the neighbor discovery signal based on the maximum transmission power of the transmitting wireless device and a number of the discovered neighbor wireless devices. | 09-18-2014 |
20150189626 | Signalling Scheme for Coordinated Transmissions - A method of signal transmission in a wireless communications network is disclosed. The method includes identifying a particular set of transmission points that can be utilized to transmit data to a mobile device, constructing an indexed list of the particular set of transmission points, and transmitting the indexed list to the mobile device. The method further includes selecting at least one transmission point from the particular set of transmission points to transmit data to the mobile device in a particular transmission, and transmitting to the mobile device an indicator of the index corresponding to the at least one transmission point. | 07-02-2015 |
Dian Zhu, Chantilly, VA US
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20140066129 | Touch-Screen Mobile Electronic Communication Device and Controller - A touch-screen mobile electronic cellular/communication devices having ergonomic buttons and controls for improved control of gaming activities, for interface with and control of a gaming console without the need for a game controller, and for remote control of home entertainment devices, home appliances, furniture, transportation vessels (automobile, aircraft, water vehicles, submersibles), machinery, robots, weapons, sports equipment, other consumer electronics, security devices, musical instruments, toys, recreational hobby/devices, and other devices that can be controlled through wireless signal input. | 03-06-2014 |
20150138719 | Small High Performance Computer Enclosure - A computer enclosure having a shape, size and specific orientation of components for incorporation of basic computer components, such as a mother board, power supply unit, data storage unit, and disc drive, as well as high-performance components, such as dual large fans, radiator, and long expansion card, with minimal internal air space separating the components, minimizing overall volume. | 05-21-2015 |
Guohua Zhu, Norfolk, VA US
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20120305802 | Nanoparticles and Methods of Generating Coherent Emission Therefrom - Nanoparticles with a metal or metallic core and an outer shell comprising a matrix and a dopant. For example, a nanoparticle can have a gold core and outer shell comprising silica and an organic dye. Such nanoparticles can have use in, for example, optical communication applications, chemical and biosensing applications, and imaging applications. | 12-06-2012 |
Jerry Zhu, Glen Allen, VA US
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20100306732 | CORRECTNESS BY PROOF - A methodology and system for defining enterprise software requirements is provided. The methodology, called correctness by proof, is based on biology of cognition and mathematical logic. The methodology decomposes requirements engineering problem into three standalone sub-problems each of which is solved using axiomatic method to construct an axiomatic theory. The whole of enterprise software requirements is represented as three hierarchically organized axiomatic theories. Every theorem of an axiomatic theory is proved to be true, resulting all requirements correct by construction. Requirements constructed in form of axiomatic theories have three attributes: consistent (free of contradiction), complete (no missing requirements) and normalized (free of redundancies) as ensured by the properties of axiomatic systems. This proposed innovation anticipates immediate benefits for a discontinuous progress in defining correct and precise requirements by construction impossible with today's approaches. It also expects to reshape the landscape of requirements definition technologies to automate tasks with scientific exactitude. | 12-02-2010 |
Jiajun Zhu, Charlottesville, VA US
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20090179895 | Three-Dimensional Annotations for Street View Data - The present invention relates to annotating images. In an embodiment, the present invention enables users to create annotations corresponding to three-dimensional objects while viewing two-dimensional images. In one embodiment, this is achieved by projecting a selecting object onto a three-dimensional model created from a plurality of two-dimensional images. The selecting object is input by a user while viewing a first image corresponding to a portion of the three-dimensional model. A location corresponding to the projection on the three-dimensional model is determined, and content entered by the user while viewing the first image is associated with the location. The content is stored together with the location information to form an annotation. The annotation can be retrieved and displayed together with other images corresponding to the location. | 07-16-2009 |
20090213112 | Using Image Content to Facilitate Navigation in Panoramic Image Data - The present invention relates to using image content to facilitate navigation in panoramic image data. In an embodiment, a computer-implemented method for navigating in panoramic image data includes: (1) determining an intersection of a ray and a virtual model, wherein the ray extends from a camera viewport of an image and the virtual model comprises a plurality of facade planes; (2) retrieving a panoramic image; (3) orienting the panoramic image to the intersection; and (4) displaying the oriented panoramic image. | 08-27-2009 |
20120038638 | Three-Dimensional Annotations For Street View Data - The present invention relates to annotating images. In an embodiment, the present invention enables users to create annotations corresponding to three-dimensional objects while viewing two-dimensional images. In one embodiment, this is achieved by projecting a selecting object onto a three-dimensional model created from a plurality of two-dimensional images. The selecting object is input by a user while viewing a first image corresponding to a portion of the three-dimensional model. A location corresponding to the projection on the three-dimensional model is determined, and content entered by the user while viewing the first image is associated with the location. The content is stored together with the location information to form an annotation. The annotation can be retrieved and displayed together with other images corresponding to the location. | 02-16-2012 |
20120327184 | USING IMAGE CONTENT TO FACILITATE NAVIGATION IN PANORAMIC IMAGE DATA - The present invention relates to using image content to facilitate navigation in panoramic image data. In an embodiment, a computer-implemented method for navigating in panoramic image data includes: (1) determining an intersection of a ray and a virtual model, wherein the ray extends from a camera viewport of an image and the virtual model comprises a plurality of facade planes; (2) retrieving a panoramic image; (3) orienting the panoramic image to the intersection; and (4) displaying the oriented panoramic image. | 12-27-2012 |
Jianzhong Zhu, Crozet, VA US
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20150068299 | Gaseous Flow Sensor and Related Method Thereof - A gas flow sensing device, and related method of manufacturing, comprising a conductive layer encapsulated in dielectric film, suspended over a cavity to form a diaphragm. The conductive layer functions as both a heating a sensing element and is patterned to provide uniform heat distribution across the diaphragm. The device is designed to sense flow from any direction relative to the device and the design of the dielectric film and diaphragm reduces sensor drift during prolonged operation. | 03-12-2015 |
Mantian Zhu, Oakton, VA US
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20140100859 | Diet planning system and method - A diet planning system and method that provide a user an electronic device for inputting food items that represent a partial diet menu for a time period. The system computes the difference between the nutritional values of the user specified food items and a pre-established user-specifiable set of target intake nutritional values. The system suggests food items, of which nutritional values match or are close to the difference computed above to complete the diet menu for the specified time period. The system then displays on the electronic device the complete diet menu comprising of the user specified and the system suggested food items for the time period. The system optionally displays the total nutritional values of the food items in the diet menu and the target intake nutritional values. | 04-10-2014 |
Mingyao Zhu, Williamsburg, VA US
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20090011204 | CARBON 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 |
20090011241 | Carbon Nanoflake Compositions and Methods of Production - Novel compositions and morphologies of carbon nanoflakes are described, as well as methods for making carbon nanoflakes using a radio frequency plasma enhanced chemical vapor deposition (RF-PECVD) process. Acetylene is used as a CVD source gas. By utilizing high concentrations of acetylene in the CVD source gas at relatively low temperatures, carbon nanoflake growth rate and robustness are improved, and the resulting carbon nanoflakes have enhanced height uniformity. | 01-08-2009 |
Qing Zhu, Herndon, VA US
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20160078003 | SYSTEM AND METHOD FOR NETWORK USER INTERFACE REPORT FORMATTING - In some embodiments, a web-browser-based presentation and report requests over a network may be facilitated. A request for a first report may be obtained from a user system through a web browser. The first report request may comprise a selection of one or more template or filter combinations for formatting the first report. Control of the web browser may be returned to enable a user to use the web browser to perform one or more other tasks while the first report request is being processed. The one or more other tasks may comprise requesting another report or other task. The first report request may be processed by obtaining and formatting the first report in accordance with the one or more selected template or filter combinations of the first report request. The formatted first report may be transmitted over the network to the web browser of the user system. | 03-17-2016 |
Reiyao Zhu, Midlothian, VA US
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20090053956 | Flame resistant spun staple yarns made from blends of fibers derived from diamino diphenyl sulfone, low thermal shrinkage fibers, flame resistant fibers, and antitstatic fibers and fabrics and garments made therefrom and methods for making same - The invention concerns a flame-resistant spun staple yarns and fabrics and garments comprising these yarns and methods of making the same. The yarns have at least 25 parts by weight of a polymeric staple fiber containing a polymer or copolymer derived from a monomer selected from the group consisting of 4,4′diaminodiphenyl sulfone, 3,3′diaminodiphenyl sulfone, and mixtures thereof; 2 to 15 parts by weight of a fiber having low thermal shrinkage; 1 to 5 parts by weight of an antistatic fiber; and the remainder being flame resistant fibers having a limiting oxygen index of 21 or greater, based on 100 total parts by weight of the polymeric fiber, the low thermal shrinkage fiber, the antistatic fiber, and the flame resistant fibers in the yarn. | 02-26-2009 |
20090139016 | Thermal Performance Garments Comprising an Outer Shell Fabric of PIPD and Aramid Fibers - This invention concerns a flame-resistant garment having an outer shell fabric comprising 30 to 70 parts by weight of a polypyridobisimidazole fiber having an inherent viscosity of greater than 20 dl/g and 30 to 70 parts by weight of an aramid fiber. | 06-04-2009 |
20090140450 | Fabrics Made from a Blend of Polypyridobisimidazole/Flame-Retardant Treated Cellulose Fibers and Articles Made Therefrom - The invention concerns flame retardant fabrics made from mixtures of polypyridobisimidazole fibers with cellulose fibers that have been treated to make them flame retardant and articles made therefrom. | 06-04-2009 |
20090260139 | Thermal Performance Garments Comprising an Ultraviolet Light Tolerant Outer Shell Fabric of Polypyridobisimidazole and Polybenzobisoxazole Fibers - The invention concerns a flame-resistant garment having an outer shell fabric comprising 5 to 40 parts by weight of a polybenzobisoxazole fiber and 60 to 95 parts by weight of a polypridobisimidazole fiber having an inherent viscosity of greater than 20 dl/g. | 10-22-2009 |
20090282601 | Garments Comprising a Flexible High Thermal Performance Outer Shell Fabric of Polybenzimidazole and Polypyridobisimidazole Fibers - This invention concerns a flame-resistant garment having an outer shell fabric comprising 5 to 50 parts by weight of a polypyridobisimidazole fiber having an inherent viscosity of greater than 20 dl/g and 50 to 95 parts by weight of polybenzimidazole fiber. | 11-19-2009 |
Reiyao H. Zhu, Midlothian, VA US
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20090247035 | PIPD Comfort Fabrics and Articles Made Therefrom - The invention concerns a fabric useful in apparel and garments comprising an intimate blend of staple fibers, the blend of fibers comprising 55 to 95 parts by weight of a polypyridobisimidazole fiber having an inherent viscosity of greater than 20 dl/g and a tensile modulus of greater than 120 GPa (820 gpd); and 5 to 45 parts by weight of a flexible fiber having a tensile modulus of less than 10 GPa (70 gpd). | 10-01-2009 |
20090258558 | Garments Comprising High Strength Extreme Thermal Performance Outer Shell Fabric of Polybenzimidazole and Polypyridobisimidazole Fibers - This invention concerns a flame-resistant garment having an outer shell fabric comprising 50 to 95 parts by weight of a polypyridobisimidazole fiber having an inherent viscosity of greater than 20 dl/g and 5 to 50 parts by weight of polybenzimidazole fiber. | 10-15-2009 |
20090260138 | Thermal Performance Garments Comprising a Bleach Tolerant Outer Shell Fabric of Polypyridobisimidazole and Polybenzobisoxazole Fibers - The invention concerns a flame-resistant garment having an outer shell fabric comprising 50 to 95 parts by weight of a polybenzobisoxazole fiber and 5 to 50 parts by weight of a polypridobisimidazole fiber having an inherent viscosity of greater than 20 dl/g. | 10-22-2009 |
Shiqi Zhu, Richmond, VA US
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20080245888 | Wall hanging fountain - The invention is directed toward a sealed-type fountain with infinitely variable fluid jets controlled by the user or changes in sound inputs therein. It is ideally designed for wall hanging in order to minimize the space required for its use. The wall hanging music fountain includes a frame and sealed fluid containment structure, fluid tank, controllers, and fluid pump coupled to a fluid distribution manifold. Fluid nozzles and LEDs are mounted in an aesthetically pleasing pattern onto a fluid distribution manifold mounted in proximity to the base of the fluid containment structure, and coupled to the controllers and fluid pump. When activated by the user, variations in sound from an integrated audio playback device cause aesthetically pleasing changes in the patterns of fluid nozzle and LED activation in the device. | 10-09-2008 |
20090038188 | Illuminated display with simulated motion - The invention is directed toward a decorative apparatus for presenting visual images having the appearance of motion constructed of a front panel picture member mounted to a rear panel housing. The front panel picture member is a rectangular glass pane painted on the front face to define a transparent window and a translucent photographic picture mounted on a rear face of the planar member and framed by a border painted on the front face. The rear panel housing has a drive motor mounted to the housing which is connected to a rotatable driving roller which is also mounted to the housing. A driven roller is mounted to the housing oriented parallel to driving roller with an endless loop of transparent film having random designs applied thereon engaging the rollers. A stationary blocking screen is mounted to the housing in front of the endless loop, the blocking screen defining transparent sections with undulating designs and opaque sections; and a light source mounted in the panel housing behind the endless loop of film to illuminate the loop of endless film and the photographic picture. | 02-12-2009 |
20090197729 | Dynamic decorative painting - The invention is directed toward an electro-mechanical simulated aquarium. It includes a novel combination of a planetary gear train driving two endless loops of transparent material in counter-rotating directions. Depictions of marine life are applied to the loops and the entire arrangement is housed in an aquarium-like enclosure in order to maximize its realism. | 08-06-2009 |
20100088941 | Frame with illuminated picture - The invention is directed toward an illuminated picture frame having a base panel and a front panel removably mounted to the base panel through the use of corner magnets. The base panel is formed with a top planar surface defining a rib structure extending from said planar surface for seating a light diffusion member, a photograph and a transparent cover for said photograph to be illuminated. A light source in the form of an LED strip is mounted on the top planar surface adjacent the light diffusion member and is connected by wiring to a battery power source. The base panel has a bottom planar surface with a mating assembly in the form of a plurality of sets of “L” shaped tracks formed on the planar surface for mounting a stand assembly, the stand assembly defining a housing containing at least one battery for powering the light source and defining a back planar surface with complimentary mating members which are slideably mounted on the base panel bottom planar surface tracks. | 04-15-2010 |
Shiqi Zhu, Ashland, VA US
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20120024556 | Three-in-one air tool - A three-in-one pneumatic tool combining interchangeable tool heads with a standard pneumatic rotary drive assembly. The system includes drill, die grinder, and ratchet tool heads that may be attached/detached as desired from a pneumatic drive assembly. A quick-release coupling mounted at the mating end of the pneumatic drive assembly allows the user to easily insert the corresponding mating end of the various tool heads into the pneumatic drive so they may then be used in the same manner as their more traditional versions. | 02-02-2012 |
20120292411 | Pneumatic spray gun with finger adjustable spray control - An improved paint spray gun, including high volume and low pressure air paint spray guns, siphon-type paint spray guns, and gravity-fed-type spray guns, in which the spray pattern may be adjusted single-handedly with the gripping hand while in use. The invention includes a thumb and/or finger adjustable wheel rotatably mounted in the spray gun that is accessible while gripping the spray gun and may be used to adjust the spray characteristics of paint or similar liquid being sprayed. | 11-22-2012 |
20130075489 | Pneumatic spray gun with digital pressure readout - An improved paint spray gun, including high volume and low pressure air paint spray guns, siphon-type paint spray guns, and gravity-fed-type spray guns, having a built-in gas pressure gauge. | 03-28-2013 |
Siqiang Zhu, Christiansburg, VA US
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20140331626 | PRE-COALESCING MULTI-LAYERED FILTER MEDIA - Fiber webs that may be used as filter media are provided. In some embodiments, the filter media may include multiple layers. Each layer may be designed to have separate functions in the filter media. For example, a first layer may be provided for improving dust holding capacity, a second layer for improving efficiency, and a third layer for providing support and strength to the media. By designing the layers to have separate functions, each layer may be optimized to enhance its function without negatively impacting the performance of another layer of the media. | 11-13-2014 |
20160059167 | PRE-COALESCING MULTI-LAYERED FILTER MEDIA - Fiber webs that may be used as filter media are provided. In some embodiments, the filter media may include multiple layers. Each layer may be designed to have separate functions in the filter media. For example, a first layer may be provided for improving dust holding capacity, a second layer for improving efficiency, and a third layer for providing support and strength to the media. By designing the layers to have separate functions, each layer may be optimized to enhance its function without negatively impacting the performance of another layer of the media. | 03-03-2016 |
Xiaoran Zhu, Crozet, VA US
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20160120441 | Portable Device for Direct Nasal Respiration Measurement - A portable and wireless connected device, comprising a breathing channel part, a sensor box, a nose piece and a cover, allows measuring air flow of respiration through each nostril. All components are in conjunction with other parts through quick assembly mechanisms. Multiple parameters including air flow speed, volume and respiration rate are determined by analyzing sensors data in real time, thereby allowing diagnosis, monitoring and interactive breathing training in patients with pulmonary diseases. | 05-05-2016 |
Xiaoxiao Zhu, Fairfax, VA US
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20100090198 | Nanowire Field Effect Junction Diode - A nanowire field effect junction diode constructed on an insulating transparent substrate that allows form(s) of radiation such as visual light, ultraviolet radiation; or infrared radiation to pass. A nanowire is disposed on the insulating transparent substrate. An anode is connected to a first end of the nanowire and a cathode is connected to the second end of the nanowire. An oxide layer covers the nanowire. A first conducting gate is disposed on top of the oxide layer adjacent with a non-zero separation to the anode. A second conducting gate is disposed on top of the oxide layer adjacent with a non-zero separation to the cathode and adjacent with a non-zero separation the first conducting gate. A controllable PN junction may be dynamically formed along the nanowire channel by applying opposite gate voltages. Radiation striking the nanowire through the substrate creates a current the anode and cathode. | 04-15-2010 |
Yizheng Zhu, Blacksburg, VA US
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20130128264 | SINGLE-MODE OPTICAL FIBER-BASED ANGLE-RESOLVED LOW COHERENCE INTERFEROMETRIC (LCI)(A/LCI) AND NON-INTERFEROMETRIC SYSTEMS AND METHODS - Optical fiber-based angle-resolved low coherence interferometric systems and methods are disclosed for imaging of scattering samples and measurement of optical and structural properties. A single-mode collection optical fiber can be employed and scanned to collect an angular scattering distribution of scattered light from the sample. Use of a single-mode collection optical fiber can reduce cost, increase signal accuracy, and provide compatibility with optical coherence tomography systems, as examples. In certain embodiments, collected angular scatterings of light from the sample are cross-correlated with a reference signal to provide an angular scattering distribution of scattering of light from the sample. The angular scattering distribution can be spectrally dispersed to yield an angle-resolved, spectrally-resolved cross-correlation profile having depth-resolved information about the sample at the scattering angles. The angle-resolved, spectrally-resolved cross-correlation profile can be analyzed to provide size and/or depth information about the sample. The systems and methods can also be employed in non-interferometric modes. | 05-23-2013 |
Zhiguang Zhu, Blacksburg,, VA US
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20160028101 | Complete Oxidation of Sugars to Electricity by Using Cell-Free Synthetic Enzymatic Pathways - The present invention is in the field of bioelectricity. The present invention provides energy generating systems, methods, and devices that are capable of converting chemical energy stored in sugars into useful electricity. | 01-28-2016 |