Patents by Inventor Rui Zhang

Rui 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).

  • LIDAR SYSTEMS AND METHODS WITH BEAM STEERING AND WIDE ANGLE SIGNAL DETECTION
    Publication number: 20200225330
    Abstract: Embodiments discussed herein refer to using LiDAR systems for steering consecutive light pulses using micro electro-mechanical system (MEMS) to illuminate objects in a field of view. Embodiments discussed herein also refer to using a multiple lens array to process returned light pulses.
    Type: Application
    Filed: January 8, 2020
    Publication date: July 16, 2020
    Inventors: Rui Zhang, Yimin Li, Junwei Bao, Jim Li
  • Organic light emitting diode display pixel crosstalk compensation
    Patent number: 10714020
    Abstract: A portion of an image frame of video content is received and a grey level total of the portion of the image frame is calculated. A grey level offset value corresponding to the grey level total is determined. The grey level offset value corresponds to a pixel portion of an Organic Light Emitting Diode (OLED) display that will display the portion of the image frame. Compensated pixel grey levels are generated by adjusting individual pixel grey levels using the grey level offset value. The compensated pixel grey levels are driven onto the pixel portion of the OLED display.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: July 14, 2020
    Assignee: Facebook Technologies, LLC
    Inventor: Rui Zhang
  • Method for improving fault tolerance of touchscreen and touchscreen terminal
    Patent number: 10712870
    Abstract: A method for improving fault tolerance of a touchscreen determines an abnormal node, and shield the abnormal node to improve the fault tolerance of the touchscreen. The method includes detecting a capacitance value of each node in the touchscreen, comparing the detected capacitance value of each node with a preset capacitance value of each node to determine N target nodes, where N is an integer greater than or equal to zero, and the target nodes are nodes whose capacitance values vary, determining whether an abnormal node is included in the N target nodes, where the abnormal node is a target node determined when no touch operation occurs on the touchscreen, and discarding a row value, a column value, and a capacitance variation value of the abnormal node when the abnormal node is included in the N target nodes.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: July 14, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Wenchao Xiao, Shaowu Hu, Gang Xu, Rui Zhang, Wushuang Jiang
  • METHOD AND APPARATUS FOR ANTI-SPOOFING DETECTION, AND STORAGE MEDIUM
    Publication number: 20200218916
    Abstract: A method for anti-spoofing detection includes: obtaining at least one image subsequence from an image sequence, where the image sequence is acquired by an image acquisition apparatus after prompting a user to read a specified content, and the image subsequence includes at least one image in the image sequence; performing lipreading on the at least one image subsequence to obtain a lipreading result of the at least one image subsequence; and determining an anti-spoofing detection result based on the lipreading result of the at least one image subsequence.
    Type: Application
    Filed: March 23, 2020
    Publication date: July 9, 2020
    Inventors: Liwei WU, Rui ZHANG, Junjie YAN, Yigang PENG
  • Low-temperature high-performance thermoelectric material and preparation method thereof
    Publication number: 20200220063
    Abstract: A low-temperature high-performance thermoelectric material possesses a chemical formula of (AgyCu2?y)1?xTe1?zSez, wherein ?0.025?x?0.075, 0.6?y?1.4, 0<z?0.25, diffraction peaks of a main phase of the thermoelectric material are indexed as a cubic structure at room temperature of 300 K, a highest ZT value between 300 K and 673 K is in range of 0.4 to 1.6, an average ZT value (ZT)avg is in range of 0.2 to 1.4. The highest ZT value of this material at the room temperature is comparable to that of Bi2Te3, which is an excellent complement to existing low-temperature thermoelectric materials. At the same time, the present invention also indicates a new strategy to improve the low-temperature thermoelectric performance of Cu2X-based (here, X is S, Se, Te) materials, and lays a foundation for the application of Cu2X-based materials in the field of low-temperature thermoelectricity.
    Type: Application
    Filed: May 22, 2019
    Publication date: July 9, 2020
    Inventors: Jing Jiang, Yan Pan, Yi Niu, Ting Zhou, Rui Zhang, Xinrui He, Chao Wang
  • RESIN MATERIAL, METHOD FOR PRODUCING RESIN MATERIAL, AND LAMINATE
    Publication number: 20200216659
    Abstract: Provided is a resin material capable of effectively enhancing adhesiveness and long-term insulation reliability. The resin material according to the present invention contains first inorganic particles having an average aspect ratio of 2 or less, second inorganic particles having an average aspect ratio of more than 2, and a binder resin, an absolute value of a difference between an average particle diameter of the first inorganic particles and an average major diameter of the second inorganic particles is 10 ?m or less, the average particle diameter of the first inorganic particles is 1 ?m or more and less than 20 ?m, the average major diameter of the second inorganic particles is 2 ?m or more, and the content of the second inorganic particles is more than 40% by volume relative to 100% by volume of sum of the first inorganic particles and the second inorganic particles.
    Type: Application
    Filed: June 21, 2018
    Publication date: July 9, 2020
    Inventors: Yuko KAWAHARA, Keigo OOWASHI, Kouji ASHIBA, Rui ZHANG, Osamu INUI, Hiroshi MAENAKA
  • Method for demodulating frequency modulated signal of PMA standard wireless charging device
    Patent number: 10708096
    Abstract: The present disclosure relates to a method for demodulating a frequency modulated signal of a PMA standard wireless charging device, including: (1) reading coil signals, sampling the coil signals, and counting cycles; (2) extracting a frequency change according to a change in a cycle count; (3) determining data according to the frequency change and a frequency duration and outputting the data; and (4) splicing the outputted data. With the method, a demodulation part does not require a complex analog circuit, and the highest frequency desired at a digital circuit part is only 4 MHz. Moreover, at this frequency, there is only a simple addition operation, and the main operating frequency is below 236 KHz.
    Type: Grant
    Filed: July 29, 2017
    Date of Patent: July 7, 2020
    Assignee: WUXI CHINA RESOURCES SEMICO CO., LTD.
    Inventors: Congying Wang, Wenli Shu, Rui Zhang, Qiyi Zhao
  • Monitoring dynamic quality of service based on changing user context
    Patent number: 10708147
    Abstract: One embodiment provides a method for monitoring context-dependent quality of service in a shared computing environment that includes detecting, by a processor, a change in context. Service classes are dynamically assigned to individual users and respective applications within shared computing environment customers based on the change in context. Service level agreement (SLA) statistics for each assigned service class are aggregated and collected.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: July 7, 2020
    Assignee: International Business Machines Corporation
    Inventors: Nathalie Baracaldo Angel, Heiko H. Ludwig, Rui Zhang
  • PIEZOELECTRIC MICROPHONE
    Publication number: 20200213769
    Abstract: The present application provides a piezoelectric microphone including a substrate having a back cavity and a piezoelectric cantilever diaphragm fixed to the substrate, the piezoelectric cantilever diaphragm includes a fixed end fixedly connected to the substrate and a movable end connected to the fixed end and suspended above the back cavity, the piezoelectric microphone further includes a support back plate, the support back plate includes a support arm opposite to and spaced apart from the movable end of the piezoelectric cantilever diaphragm and a fixing arm that fixes the support arm. The piezoelectric microphone of the present disclosure has better stability compared to the related art.
    Type: Application
    Filed: December 4, 2019
    Publication date: July 2, 2020
    Inventors: Lian Duan, Rui Zhang
  • PIEZOELECTRIC MICROPHONE
    Publication number: 20200213771
    Abstract: The present application provides a piezoelectric microphone, including a substrate having a back cavity and a piezoelectric cantilever diaphragm fixed to the substrate. The piezoelectric cantilever diaphragm includes a first diaphragm located at its center and suspended above the back cavity, and a second diaphragm fixed to the substrate and provided around the first diaphragm. The second diaphragm includes a fixed end fixed to one side of the substrate and a movable end close to the first diaphragm side and suspended above the back cavity. The piezoelectric microphone further includes one or more elastically stretchable members each connecting the first diaphragm with the movable end. The piezoelectric microphone of the present disclosure has better performance.
    Type: Application
    Filed: December 4, 2019
    Publication date: July 2, 2020
    Inventors: Lian Duan, Rui Zhang
  • PIEZOELECTRIC MICROPHONE
    Publication number: 20200213770
    Abstract: The present application provides a piezoelectric microphone, and it includes a substrate having a back cavity and a piezoelectric cantilever diaphragm fixed to the substrate. The piezoelectric cantilever diaphragm includes a plurality of diaphragm flaps, and each of the diaphragm flaps has one end fixed to the substrate and another end suspended above the back cavity. Every two adjacent ones of the diaphragm flaps are spaced apart to form a gap. The piezoelectric microphone further comprises an elastically stretchable member connecting the two adjacent diaphragm flaps, and the elastically stretchable member is provided between at least one set of two adjacent ones of the diaphragm flaps. The piezoelectric microphone of the present disclosure has better performance.
    Type: Application
    Filed: December 4, 2019
    Publication date: July 2, 2020
    Inventors: Lian Duan, Rui Zhang
  • Low-power-consumption high-speed zero-current switch
    Publication number: 20200204172
    Abstract: A low-power-consumption high-speed zero-current switch includes a delay controller, a driving stage and a power transistor MN, wherein: an input of the delay controller is connected with an external clock CLK, an output of the delay controller is connected with an input of the driving stage, and an output of the driving stage is connected with a gate of the power transistor MN; the delay controller includes a gate signal generator, a sampling circuit and a current controller, and three of which form a negative feedback loop for stabilizing the turn-on voltage VON and the turn-off voltage VD to 0, so that when the power transistor MN is turned on or off, the source-drain voltage thereof is 0. The present invention no longer uses a high-power-consumption high-speed comparator, but uses a low-power-consumption delay controller to generate turn-on and turn-off signals of the power transistor.
    Type: Application
    Filed: May 25, 2018
    Publication date: June 25, 2020
    Inventors: Li Geng, Zhongming Xue, Lina Zhang, Wei Gou, Rui Zhang, Ruiqiang Zhang
  • RESIN MATERIAL, METHOD FOR PRODUCING RESIN MATERIAL, AND LAMINATE
    Publication number: 20200181358
    Abstract: Provided is a resin material capable of effectively enhancing insulation properties, adhesiveness and long-term insulation reliability. The resin material according to the present invention contains first inorganic particles having an average aspect ratio of 2 or less and an average circularity of 0.90 or less, second inorganic particles having an average aspect ratio of 2 or less and an average circularity of 0.95 or more, third inorganic particles having an average aspect ratio of more than 2, and a binder resin.
    Type: Application
    Filed: June 21, 2018
    Publication date: June 11, 2020
    Inventors: Yuko Kawahara, Keigo Oowashi, Kouji Ashiba, Rui Zhang, Kazuyuki Yahara, Osamu Inui, Hiroshi Maenaka
  • FACE UNLOCKING METHOD AND APPARATUS, AND STORAGE MEDIUM
    Publication number: 20200184059
    Abstract: A face unlocking method includes: performing face detection on one or more images; performing face feature extraction on an image in which a face is detected; performing authentication on extracted face features based on stored face features, wherein the stored face features at least comprise face features of face images of at least two different angles corresponding to a same identity (ID); and performing an unlocking operation at least in response to the extracted face features passing the authentication.
    Type: Application
    Filed: February 13, 2020
    Publication date: June 11, 2020
    Applicant: BEIJING SENSETIME TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Liwei WU, Xiao JIN, Hongwei QIN, Rui ZHANG, Tianpeng BAO, Guanglu SONG, Xin SU, Junjie YAN
  • Nuclear instrumentation system and method for locating the same
    Patent number: 10679760
    Abstract: A nuclear instrumentation system includes a source range channel, an intermediate range channel, and a power range channel. Each channel includes one detector installed around the pressure vessel. The detectors of the power range channel and the intermediate range channel both include several fission chambers. The detectors of the intermediate range channel and power range channel share several fission chambers. Since some detectors employ fission chambers, the Gamma radiation resistance property, anti-noise property, and anti-electromagnetic interference property are improved. Sharing fission chambers reduces the number of detectors to be installed, thus relieving the installation workload and the positioning of a follow-up detector. Further, the system increases the number of some channels, which increases redundancy and improves system reliability.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: June 9, 2020
    Assignees: CHINA NUCLEAR POWER ENGINEERING COMPANY LTD., CHINA GENERAL NUCLEAR POWER CORPORATION
    Inventors: Tianyou Li, Li Zeng, Rui Zhang, Hao Yang, Xing Wang, Yajie Tian, Ji Shi, Wei Wang, Huaqing Peng, Weihua Chen, Weijun Huang, Hui Jiang
  • Apparatus, system, and method for image normalization for adjustable head-mounted displays
    Patent number: 10671118
    Abstract: An apparatus for head-mounted displays may include (i) a flexible planar support frame, (ii) a left eye cup coupled to a left side of the flexible planar support frame and a right eye cup coupled to a right side of the flexible planar support frame, (iii) left-eye and right-eye display screen areas mounted to the flexible planar support frame such that the left-eye display screen area projects toward a left eye aperture defined by the left eye cup and the right-eye display screen area projects toward a right eye aperture defined by the right eye cup, and (iv) a deflection sensor coupled to the flexible planar support frame that generates a deflection signal describing an extent to which the support frame is bent, where images displayed by the left-eye and right-eye display screen areas are normalized based on the deflection signal. Various other devices, systems, and methods are also disclosed.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: June 2, 2020
    Assignee: Facebook Technologies, LLC
    Inventor: Rui Zhang
  • Apparatuses, systems, and methods for determining interpupillary distances of head-mounted displays
    Patent number: 10674141
    Abstract: A head-mounted-display system may include 1) a support assembly and 2) a pair of display assemblies moveably coupled to the support assembly such that the display assemblies are moveable between a plurality of positions corresponding to a plurality of user interpupillary distances, with the pair of display assemblies respectively defining separate viewing regions for a user's right and left eyes. Each of the pair of display assemblies may include a lens and a display screen. The head-mounted-display system may also include a detection subsystem having 1) at least one position sensor and 2) a determination module that determines a positional relationship between the pair of display assemblies based on measurements obtained by the at least one position sensor. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: June 2, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Rui Zhang, Dong Yang
  • MEMORY MANAGEMENT FOR COMPLEX IMAGE ANALYSIS
    Publication number: 20200167891
    Abstract: Various embodiments are provided for managing memory for image analysis in a computing environment by a processor. An estimated amount of memory may be reserved for an image analysis job. During a processing of the image analysis job, at least one thread of the image analysis job is partially suspended by restricting the image analysis job from requesting allocation of additional memory upon memory requirements for the image analysis job exceeding the estimated amount of memory. Commensurate with partially suspending the at least one thread, a state of the image analysis job is maintained in the memory notwithstanding the processing of the at least one thread associated with the state is suspended.
    Type: Application
    Filed: November 23, 2018
    Publication date: May 28, 2020
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Rui ZHANG, Subashini BALACHANDRAN, Lukas RUPPRECHT, Hongzhi WANG, Renu TEWARI
  • ANOMALY LOCALIZATION IN A PIPELINE
    Publication number: 20200159976
    Abstract: A method for locating an anomaly in a fluid transmission pipeline system is provided. The method may include receiving data for one or more physical conditions measured at an input and output of a pipeline portion, performing multiple simulations on a model of the pipeline portion to determine sets of simulated conditions that respectively correspond to simulated leak locations, determining a probability for a leak at one or more of the simulated leak locations by comparing one or more sets of simulated conditions to the received output data, and determining a highest probability location for the leak based on the probability for the leak at the one or more of the simulated leak locations. At least one simulation of the multiple simulations may be performed as a stochastic process and may be based on the received input data.
    Type: Application
    Filed: October 23, 2019
    Publication date: May 21, 2020
    Inventors: Tarun Kumar, Chandramouli Visweswariah, Bo Zhang, Rui Zhang
  • TRAINING IMAGE-TO-IMAGE TRANSLATION NEURAL NETWORKS
    Publication number: 20200160113
    Abstract: A computer-implemented method for training a forward generator neural network G to translate a source image in a source domain X to a corresponding target image in a target domain Y is described.
    Type: Application
    Filed: November 19, 2019
    Publication date: May 21, 2020
    Inventors: Rui Zhang, Jia Li, Tomas Jon Pfister