Patents by Inventor Xi Zhang

Xi Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Deep magnetic field generating apparatus
    Patent number: 9320912
    Abstract: A deep magnetic field generating apparatus includes a first coil unit and a second coil unit. The second coil unit is connected with the first coil unit, and disposed around the first coil unit horizontally. Accordingly, the deep magnetic field generating apparatus can generate a desired deep magnetic field.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: April 26, 2016
    Assignees: National Cheng Kung University, Metal Industries Research & Development Centre
    Inventors: Cheng-Chi Tai, Shyh-Jier Huang, Xi-Zhang Lin, Chien-Chang Chen, Tsung-Chih Yu
  • Recovering performance of degraded solar cells with electrical pulses
    Patent number: 9299503
    Abstract: A system and method for recovering performance of a degraded solar cell are provided. The system includes a solar cell having electrodes arranged on opposing sides of an electrolyte and defining a solar cell polarity therebetween and a power source connected to the electrodes. A controller controls the power source for applying a voltage pulse(s) across the solar cell. The voltage pulse may be applied at the solar cell polarity so as to define a forward electrical bias of the solar cell.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: March 29, 2016
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Hongrui Jiang, Xi Zhang, Xuezhen Huang
  • LOW POWER FLIP-FLOP ELEMENT WITH GATED CLOCK
    Publication number: 20160043706
    Abstract: A flip-flop element is configured to gate the clock inversions within a master-slave flip-flop element. The flip-flop element reduces the number of circuit elements within the flip-flop element by collapsing elements with common functionality into a single circuit element. Further, by making the actions of judiciously selected circuit elements conditional upon the state of the input data, the flip-flop element circuit reduces the number of internal transitions. In this manner, by reducing the number of circuit elements as well as the number of transitions, the flip-flop element achieves substantial reduction in overall system power consumption, resulting in a more efficient system.
    Type: Application
    Filed: August 11, 2014
    Publication date: February 11, 2016
    Inventors: Ilyas ELKIN, Ge YANG, Xi ZHANG, Jiani YU
  • Emission surface for an X-ray device
    Patent number: 9251987
    Abstract: Embodiments of the disclosure relate to electron emitters for use in conjunction with X-ray devices. In one embodiment, the emitter features a round emission area capable of emitting electrons when heated, wherein the round emission area comprises at least one of a gap, a channel, or a combination thereof that separates a first portion of the round emission area from a second portion of the round emission area and permits thermal expansion of the first portion and the second portion within the at least one gap or channel without permitting the first portion and the second portion to touch one another. The two electrically conductive legs coupled to the surface at respective locations outside the round emission area and that are capable of supplying current to the round emission area.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: February 2, 2016
    Assignee: General Electric Company
    Inventors: Xi Zhang, Carey Shawn Rogers, Ethan James Westcot, Mark Alan Frontera, Vance Scott Robinson, Yun Zou
  • X-ray source with moving anode or cathode
    Patent number: 9237872
    Abstract: An X-ray source comprising a cathode element adapted to generate a stream of electrons. The X-ray source includes an anode element adapted to present a focal spot position for the stream of electrons. A vacuum chamber contains the cathode element and anode element. The anode element and/or the cathode element can be moveable with respect to the other in coordination with the generation of the stream of electrons.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: January 19, 2016
    Assignee: General Electric Company
    Inventors: John Eric Tkaczyk, Remy Andre Klausz, Scott Stephen Zelakiewicz, Vasile Bogdan Neculaes, Xi Zhang
  • Hydraulic fracturing
    Patent number: 9222337
    Abstract: Method and apparatus for forecasting curving of an hydraulic fracture to be initiated in the vicinity of one or more previously placed fractures along a bore hole. Physical parameters that will affect the growth of the hydraulic fracture are received by a dimensionless parameter deriver which derives a series of dimensionless parameters as groupings of the physical parameters that are selected as similarity parameters with respect to the shape of the hydraulic fracture path. The dimensionless parameters may comprise a dimensionless viscosity parameter, a dimensionless confining stress parameter, a coefficient of friction parameter and a dimensionless deviatoric stress parameter. A comparator sequentially compares the determined dimensionless parameters with predetermined threshold values to provide an indication as to possible curving of the hydraulic fracture.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: December 29, 2015
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Andrew P. Bunger, Robert G. Jeffrey, Xi Zhang, James Kear
  • Low tau synchronizer flip-flop with dual loop feedback approach to improve mean time between failure
    Patent number: 9219480
    Abstract: A flip-flop and a method of receiving a digital signal from an asynchronous domain. In one embodiment, the flip-flop includes: (1) a first loop coupled to a flip-flop input and having first and second stable states and (2) a second loop coupled to the first loop and having the first and second stable states, properties of cross-coupled inverters in the first and second loops creating a metastable state skewed toward the first stable state in the first loop and skewed toward the second stable state in the second loop. Certain embodiments of the flip-flop have lower time constant and thus a higher Mean Time Between Failure (MTBF).
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: December 22, 2015
    Assignee: Nvidia Corporation
    Inventors: Hwong-Kwo Lin, Ge Yang, Xi Zhang, Ying Huang
  • METHOD AND APPARATUS FOR ROOF TYPE CLASSIFICATION AND RECONSTRUCTION BASED ON TWO DIMENSIONAL AERIAL IMAGES
    Publication number: 20150363645
    Abstract: A method, apparatus and computer program product are provided for roof type classification and reconstruction based on two dimensional aerial images. In the context of a method, the method includes receiving a roof image, determining a segmentation of the roof image based on cutting lines associated with roof features and classifying roof segments based on roof features within the segment. The classifying roof segments is based on the roof features correlation to a roof type pattern.
    Type: Application
    Filed: June 11, 2014
    Publication date: December 17, 2015
    Inventors: Xin Chen, Andi Zang, Xi Zhang
  • EMITTER DEVICES FOR USE IN X-RAY TUBES
    Publication number: 20150311025
    Abstract: An emitter device having an emission surface includes a plurality of ligaments configured to emit electrons in response to an applied electric field resulting from an applied electrical voltage. Further, the emitter device includes a plurality of slots configured to provide physical separation between two or more adjacently disposed ligaments of the plurality of ligaments, where one or more slots of the plurality of slots define an electrical path. Moreover, the emitter device includes a low work function layer disposed on at least a portion of a ligament of the plurality of ligaments.
    Type: Application
    Filed: April 29, 2014
    Publication date: October 29, 2015
    Applicant: General Electric Company
    Inventors: Yun Zou, Carey Shawn Rogers, Sergio Lemaitre, Mark Alan Frontera, Xi Zhang
  • METHOD AND COMPUTER DEVICE FOR MONITORING WIRELESS NETWORK
    Publication number: 20150295953
    Abstract: The present disclosure discloses a method and computer device for monitoring a wireless network. The method is implemented as follows. The computer device obtains configuration file information for accessing the wireless network after the computer device accesses the wireless network, wherein the configuration file information comprises an IP address and a subnet mask of the computer device. The computer device calculates an IP address range of the wireless network according to the IP address and the subnet mask of the computer device. The computer device searches for a device that accesses the wireless network and of which IP address is within the IP address range.
    Type: Application
    Filed: June 4, 2015
    Publication date: October 15, 2015
    Inventors: Ke CHEN, Xi ZHANG
  • Restricting Network Applications
    Publication number: 20150271094
    Abstract: Various embodiments provide a method and an apparatus for restricting network applications to increase network speed of the local device. A network using scene is identified, and a network application running in the network using scene is restricted using a network speed protecting policy corresponding to the network using scene identified.
    Type: Application
    Filed: June 3, 2015
    Publication date: September 24, 2015
    Inventors: Jie LIN, Xi ZHANG, Jing YANG
  • Systems and methods for providing a personal channel via television
    Patent number: 9143735
    Abstract: Preferred systems and methods provide a personal channel for broadcasting personal content to televisions over a network, such as a fiber optic access network. A service provider assigns a personal channel identifier to a broadcaster. This identifier allows viewers to tune to the personal channel. The broadcaster sends personal content to the service provider together with a list of authorized viewers for that personal content. The service provider stores the personal content and makes it available as specified by the subscriber for viewing. When requested, the service provider sends the personal content to the specified set top boxes on the assigned personal channel identifier. By tuning the set top box to the broadcaster's channel, viewers may view the personal content on television as though it were broadcast from any network television station.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: September 22, 2015
    Assignee: VERIZON PATENT AND LICENSING INC.
    Inventors: Joel S. Angiolillo, Xi Zhang
  • Flip-flop circuit having a reduced hold time requirement for a scan input
    Patent number: 9110141
    Abstract: A scan flip-flop circuit comprises a scan input sub-circuit and a selection sub-circuit. The scan input sub-circuit is configured to receive a scan input signal and a scan enable signal and, when the scan enable signal is activated, generate complementary scan input signals representing the scan input signal that are delayed relative to a transition of a clock input signal between two different logic levels. The selection sub-circuit is coupled to the scan input sub-circuit and configured to receive the complementary scan input signals and, based on the scan enable signal, output an inverted version of either the scan input signal or a data signal as a first selected input signal.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: August 18, 2015
    Assignee: NVIDIA Corporation
    Inventors: Hwong-Kwo Lin, Ge Yang, Xi Zhang, Jiani Yu, Ting-Hsiang Chu
  • LOW TAU SYNCHRONIZER FLIP-FLOP WITH DUAL LOOP FEEDBACK APPROACH TO IMPROVE MEAN TIME BETWEEN FAILURE
    Publication number: 20150222266
    Abstract: A flip-flop and a method of receiving a digital signal from an asynchronous domain. In one embodiment, the flip-flop includes: (1) a first loop coupled to a flip-flop input and having first and second stable states and (2) a second loop coupled to the first loop and having the first and second stable states, properties of cross-coupled inverters in the first and second loops creating a metastable state skewed toward the first stable state in the first loop and skewed toward the second stable state in the second loop. Certain embodiments of the flip-flop have lower time constant and thus a higher Mean Time Between Failure (MTBF).
    Type: Application
    Filed: January 31, 2014
    Publication date: August 6, 2015
    Applicant: Nvidia Corporation
    Inventors: Hwong-Kwo Lin, Ge Yang, Xi Zhang, Ying Huang
  • Electromagnetic thermotherapeutic apparatus
    Patent number: 9095329
    Abstract: An electromagnetic thermotherapeutic apparatus includes: a plurality of needle units respectively having head portions and needle portions; a base unit having a base plate that is formed with a plurality of first through holes, and a base pad that is formed with a plurality of second through holes, the needle portions of the needle units removably extending through the second and first through holes, the head portions of the needle units abutting against the base pad; a temperature monitor disposed between the base plate and the base pad; an upper unit disposed above the base pad and abutting against the head portions; and a clamp unit clamping and pressing the base unit against the upper unit.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: August 4, 2015
    Assignee: National Cheng Kung University
    Inventors: Gwo-Bin Lee, Xi-Zhang Lin, Sheng-Chieh Huang, Yi-Yuan Chang, Yan-Shen Shan, Sheng-Jye Hwang, Tung-Jen Lee, Szu-Yin Chen, Ping-Hen Chen
  • Systems and Methods for Refining Building Alignment in an Aerial Image
    Publication number: 20150199557
    Abstract: Systems, apparatuses, and methods are provided for refining building alignment in an aerial image. At least one candidate shifting vector and matching score value are determined for a local building. At least one dominant shifting vector is determined for at least one random group of neighboring buildings of the local building. At least one optimized matching score is calculated using the at least one candidate shifting vector for the local building and the at least one dominant shifting vector for the at least one random group of the neighboring buildings. A final shifting vector for the local building is found using the at least one optimized matching score.
    Type: Application
    Filed: January 13, 2014
    Publication date: July 16, 2015
    Applicant: HERE Global B.V.
    Inventors: Xi Zhang, Xin Chen
  • GOLD NANO-PARTICLES COATED LARGE FILM GRAPHENE AND GRAPHENE FLAKES AND METHODS FOR FORMING THE SAME
    Publication number: 20150198886
    Abstract: A single-layer GNPs/graphene includes a carrier layer as a substrate; a graphene layer on the carrier layer; and a plurality of gold nanoparticles (GNPs) evenly distributed on the graphene layer, which formed as a GNP layer; and wherein the graphene layer and the GNP layer has the effect of UV absorption; and longitudinal sizes of the GNP layers will affect the absorbing wavelengths. For forming multi-layer GNPs/graphene, the above second and third steps can be repeated until the number of the GNP layer and graphene layer has achieved to a predetermined one. Moreover, the methods for forming above structures are provided in the present invention.
    Type: Application
    Filed: January 14, 2014
    Publication date: July 16, 2015
    Inventors: Chung-Ping Lai, Juanjuan Zhou, Xi Zhang
  • ELECTRON EMISSION SURFACE FOR X-RAY GENERATION
    Publication number: 20150187534
    Abstract: Embodiments of the disclosure relate to electron emitters for use in conjunction with X-ray emitting devices. In certain embodiments the emitter includes features that prevent, limit, or control deflection of the electron emitter at operating temperatures. In this manner, the electron emitter may be kept substantially flat or at a desired curvature during operation.
    Type: Application
    Filed: December 30, 2013
    Publication date: July 2, 2015
    Inventors: Vance Scott Robinson, Carey Shawn Rogers, Sergio Lemaitre, Mark Alan Frontera, Sergiy Zalyubovskiy, Xi Zhang
  • Low power, single-rail level shifters employing power down signal from output power domain and a method of converting a data signal between power domains
    Patent number: 9071240
    Abstract: Provided herein is a voltage level shifter, an apparatus including a voltage level shifter and a method of converting voltages between input and output power domains. In one embodiment, the voltage level shifter includes: (1) an input circuit configured to receive a data signal from an input power domain and a power down signal from a output power domain and (2) a transition circuit coupled to the input circuit and configured to receive the data signal and an inverted signal of the power down signal, wherein the input circuit and the transition circuit are both configured to connect to a supply voltage of the output power domain as a power source.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: June 30, 2015
    Assignee: Nvidia Corporation
    Inventors: Hank Lin, Ge Yang, Xi Zhang, Jiani Yu, Haiyan Gong
  • Electronic devices holder
    Patent number: D736217
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: August 11, 2015
    Inventor: Xi-Zhang Wang