Patents by Inventor Xin Zhao

Xin Zhao 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).

  • Publication number: 20200369674
    Abstract: Disclosed are a compound represented by the general Formula (I), or a stereisomer, tautomer, derivative, prodrug or pharmaceutically acceptable salt thereof, and a method for preparing the compound and use of the compound in manufacture of a medicament for treating a neuropathic pain and/or neuropathic pain syndrome or a medicament for combating an inflammation: wherein R1 is selected from hydrogen, halogen, alkyl, cyano and haloalkyl, R2 and R3 are independently selected from hydrogen, halogen, alkyl, haloalkyl and nitro, and R1, R2 and R3 are not hydrogen at the same time; furthermore, when either R2 or R3 is nitro or halogen, the other two of R1, R2 and R3 are not hydrogen at the same time. The compound has good effects in treating a neuropathic pain and/or neuropathic pain syndrome and good effects in combating an inflammation, and has not side effects such as addiction.
    Type: Application
    Filed: December 7, 2018
    Publication date: November 26, 2020
    Applicant: LUNAN PHARMACEUTICAL GROUP CORPORATION
    Inventors: Runtao LI, Jia YE, Xin WANG, Zemei GE, Yingying LIANG, Xiaolei DU, Ding WANG, Guimin ZHANG, Jingchun YAO, Guifang ZHAO
  • Publication number: 20200374560
    Abstract: Aspects of the disclosure provide methods and apparatuses for video encoding/decoding. In some examples, an apparatus for video decoding includes receiving circuitry and processing circuitry. The processing circuitry decodes a first syntax element at coding locations within a transform block for a current block in a first coding pass that scans the coding locations within the transform block, and decodes a second syntax element at the coding locations within the transform block in a second coding pass that is after the first coding pass and scans the coding locations within the transform block. Then, the processing circuitry determines residuals in the transform block based on at least the decoded first syntax element and the decoded second syntax element at the coding locations in the transform block, and reconstructs samples of the current block based on the residuals in the transform block.
    Type: Application
    Filed: May 1, 2020
    Publication date: November 26, 2020
    Applicant: TENCENT AMERICA LLC
    Inventors: Xin ZHAO, Xiang Li, Shan Liu
  • Publication number: 20200374531
    Abstract: According to an aspect of the disclosure, a method of video decoding is performed in a video decoder. In the method, coded information of a current block is received from a coded video bitstream. The coded information includes prediction information of the current block. A determination is made whether the current block is predicted using a neighboring reconstructed sample from a non-zero reference line based on the coded information. A primary transform type is determined based on the determination that the current block is predicted using the neighboring reconstructed sample from the non-zero reference line. A primary transform is performed for a transform block that is partitioned from the current block in accordance with the determined primary transform type.
    Type: Application
    Filed: April 29, 2020
    Publication date: November 26, 2020
    Applicant: TENCENT AMERICA LLC
    Inventors: Liang ZHAO, Xin ZHAO, Xiang LI, Shan LIU
  • Publication number: 20200374517
    Abstract: Aspects of the disclosure provide methods and an apparatus for video decoding. In some embodiments, the apparatus for video decoding includes processing circuitry. The processing circuitry decodes at least one syntax element from a coded video bitstream. The at least one syntax element is indicative of a block size of a non-square block under reconstruction that has a rectangular shape. The block size includes a first size in a first dimension and a second size in a second dimension. The first size is different from the second size. The processing circuitry predicts a sample of the non-square block based on a first set of intra prediction directions for the non-square block. The first set of intra prediction directions does not include at least one of a second set of intra prediction directions for a square block.
    Type: Application
    Filed: August 14, 2020
    Publication date: November 26, 2020
    Applicant: Tencent America LLC
    Inventors: Shan LIU, Stephan WENGER, Xin ZHAO, Xiang LI, Liang ZHAO
  • Publication number: 20200374526
    Abstract: A method, device, apparatus for predicting a video coding complexity and a computer-readable storage medium are provided. The method includes: acquiring an attribute feature of a target video; extracting a plurality of first target image frames from the target video; performing a frame difference calculation on the plurality of the first target image frames, to acquire a plurality of first frame difference images; determining a histogram feature for frame difference images of the target video according to a statistical histogram of each first frame difference image; and inputting a plurality of features of the target video into a coding complexity prediction model to acquire a coding complexity prediction value of the target video. Through the above method, the BPP prediction value can be acquired intelligently.
    Type: Application
    Filed: February 21, 2020
    Publication date: November 26, 2020
    Applicant: Beijing Baidu Netcom Science and Technology Co., Ltd
    Inventors: Zhichao Zhou, Dongliang He, Fu Li, Xiang Zhao, Xin Li, Zhizhen Chi, Xiang Long, Hao Sun
  • Publication number: 20200370408
    Abstract: The present disclosure belongs to the field of marine engineering, and in particular relates to a method and system for guaranteeing the safety of offshore oil well control equipment. The method comprises: identifying the state of a main structure of the offshore oil well control equipment, identifying the state of a hydraulic control unit of offshore oil well control equipment, identifying the state of an electronic control unit of offshore oil well control equipment, predicting the state of the offshore oil well control equipment and making a real-time decision based on existing information; and the system for guaranteeing the safety of the offshore oil well control equipment comprises a state identification subsystem of a main structure, a state identification subsystem of the hydraulic control unit, a state identification subsystem of the electronic control unit and a state prediction and real-time decision subsystem.
    Type: Application
    Filed: December 5, 2019
    Publication date: November 26, 2020
    Applicant: China University of Petroleum (East China)
    Inventors: Baoping CAI, Yonghong LIU, Chao YANG, Xiangdi KONG, Yi ZHAO, Hongqi XU, Xincheng LI, Yandong CHEN, Renjie JI, Zengkai LIU, Libing LIU, Rikui ZHANG, Yuqian YANG, Shitang LIU, Xin WEI
  • Patent number: 10846540
    Abstract: Lane level traffic levels are determined based on traffic camera images. A controller aligns a three-dimensional map with a traffic camera view, and identifies multiple lanes in the traffic camera view based on lane delineations of the three-dimensional map. The controller calculates a traffic parameter based on the multiple lanes in image frames from the traffic camera view and provides a traffic graphic based on the traffic parameter.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: November 24, 2020
    Assignee: HERE GLOBAL B.V.
    Inventors: Xin Chen, Xiang Ma, Roman Ostrovskiy, Terence Zhao
  • Patent number: 10848788
    Abstract: A method of decoding video comprising: receiving an encoded block of video data, determining a transform for the encoded block of video data, wherein the transform has a size S that is not a power of two, rounding S to a power of two creating a transform with a modified size S?, applying an inverse transform with the modified size S? to the encoded block of video data to create residual video data, and decoding the residual video data to create decoded block of video data.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: November 24, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Xiang Li, Xin Zhao, Li Zhang, Jianle Chen, Hsiao-Chiang Chuang, Marta Karczewicz
  • Patent number: 10848763
    Abstract: A method of controlling intra-inter prediction for decoding or encoding of a video sequence, is performed by at least one processor. The method includes determining whether a neighboring block of a current block is coded by an intra-inter prediction mode, and based on the neighboring block being determined to be coded by the intra-inter prediction mode, performing intra mode coding of the current block, using an intra prediction mode associated with the intra-inter prediction mode, setting a prediction mode flag associated with the neighboring block, deriving a context value, based on the set prediction mode flag associated with the neighboring block, and using the derived context value, performing entropy coding of a prediction mode flag associated with the current block that indicates that the current block is intra coded.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: November 24, 2020
    Assignee: TENCENT AMERICA LLC
    Inventors: Xin Zhao, Xiang Li, Shan Liu
  • Publication number: 20200361628
    Abstract: A gimbal for carrying a load includes a first frame configured to be coupled with the load, and a second frame rotatably coupled with the first frame. At least one of the first frame or the second frame includes a connecting segment and a movable segment movably coupled with the connecting segment. The movable segment is movable relative to the connecting segment to cause the at least one of the first frame or the second frame to extend or retract. The at least one of the first frame or the second frame includes a locking part disposed on one of the connecting segment and the movable segment. The locking part is configured to abut against the connecting segment or disengage from the connecting segment for placing the movable segment in a locked state or a movable state.
    Type: Application
    Filed: August 3, 2020
    Publication date: November 19, 2020
    Inventors: Rongjian SUN, Xifeng ZHAO, Xin YAN, Tianhang MA
  • Publication number: 20200366890
    Abstract: Method and decoder for reconstructing at least a sample of a block using an intra prediction angle determined from an intra prediction mode. The method includes decoding at least one syntax element from a coded video sequence. The at least one symax element is indicative of an intra prediction mode. An intra prediction angle is determined that corresponds to the indicated intra prediction mode based on a stored relationship between a plurality of intra prediction modes and a plurality of intra prediction angles. At least one sample of a block is reconstructed using the infra prediction angle that is determined to correspond to the indicated intra prediction mode. The plurality of intra prediction modes in the stored relationship can include at least one of a first plurality of wide angle prediction modes and a second plurality of wide angle prediction modes.
    Type: Application
    Filed: August 5, 2020
    Publication date: November 19, 2020
    Applicant: Tencent America LLC
    Inventors: Xin ZHAO, Liang Zhao, Shan Liu, Xiang Li
  • Patent number: 10841616
    Abstract: A method and apparatus for decoding a video sequence using a discrete sine transform (DST) type-VII transform core includes generating a set of tuples of transform core elements associated with an n-point DST-VII transform core. A first sum of a first subset of transform core elements of a first tuple is equal to a second sum of a second subset of remaining transform core elements of the first tuple. The n-point DST-VII transform core is generated based on generating the set of tuples of transform core elements. A transform on a block is performed using the n-point DST-VII transform core.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: November 17, 2020
    Assignee: TENCENT AMERICA LLC
    Inventors: Xin Zhao, Xiang Li, Shan Liu
  • Patent number: 10841593
    Abstract: A device includes one or more processors configured to derive M most probable modes (MPMs) for intra prediction of a block of video data. As part of deriving the M most probable modes, the one or more processors define a representative intra prediction mode for a left neighboring column and use the representative intra prediction mode for the left neighboring column as an MPM for the left neighboring column, and/or define a representative intra prediction mode for an above neighboring row and use the representative intra prediction mode for the above neighboring row as an MPM for the above neighboring row. A syntax element that indicates whether an MPM index or a non-MPM index is used to indicate a selected intra prediction mode for intra prediction of the block is decoded. The one or more processors reconstruct the block based on the selected intra prediction mode.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: November 17, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Xin Zhao, Jianle Chen, Li Zhang, Marta Karczewicz
  • Patent number: 10841578
    Abstract: A method for video decoding includes determining whether an angular intra prediction mode for a current block is a wide angle mode that is spaced apart from a vertical mode and a horizontal mode by an angular distance that is more than a predetermined threshold. The method further includes, in response to the determination that the angular intra prediction mode is the wide angle mode, determining a non-wide angle mode that corresponds to the wide angle mode, the non-wide angle mode being spaced apart from the vertical mode or the horizontal mode by an angular distance that is less than or equal to the predetermined threshold. The method includes determining whether a coding tool is specified for the determined corresponding non-wide angle mode, and, in response to the determination that the coding tool is specified for the determined corresponding non-wide angle mode, using the coding tool in a decoding process.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: November 17, 2020
    Assignee: Tencent America LLC
    Inventors: Liang Zhao, Xin Zhao, Xiang Li, Shan Liu
  • Publication number: 20200355888
    Abstract: The present disclosure discloses an optical lens group including a first lens, a second lens, a third lens and a fourth lens having refractive power. An object-side surface of the first lens is convex and an image-side surface thereof is concave; an image-side surface of the second lens is concave; the fourth lens has a positive refractive power, an object-side surface thereof is convex, and an image-side surface thereof is concave, and at least one of the object-side surface and the image-side surface of the fourth lens has a inflection point. The optical lens group further includes a stop disposed between the first lens and the second lens. A radius of curvature R4 of the image-side surface of the second lens and a radius of curvature R3 of an object-side surface of the second lens satisfy 0.50<R4/R3<2.00.
    Type: Application
    Filed: May 1, 2020
    Publication date: November 12, 2020
    Applicant: Zhejiang Sunny Optical Co., Ltd.
    Inventors: Yu TANG, Xin ZHOU, Fujian DAI, Liefeng ZHAO
  • Publication number: 20200359011
    Abstract: Aspects of the disclosure provide methods and apparatuses for video encoding/decoding. In some examples, an apparatus for video decoding includes receiving circuitry and processing circuitry. The processing circuitry decodes prediction information of a current block from a coded video bitstream. The prediction information is indicative of an inter prediction mode and a usage of a position dependent prediction combination (PDPC) in the inter prediction mode. Then, the processing circuitry calculates an intermediate value for a sample in the current block based on neighboring samples of the current block that are selected based on a position of the sample, and combines the intermediate value for the sample with an inter prediction value of the sample to reconstruct the sample.
    Type: Application
    Filed: April 27, 2020
    Publication date: November 12, 2020
    Applicant: Tencent America LLC
    Inventors: Liang Zhao, Xiang Li, Xin Zhao, Shan Liu
  • Publication number: 20200358589
    Abstract: A device may receive a signal from a wireless station; and determine a network-permitted Time Division Duplex (TDD) uplink duty cycle based on the signal. If the determined network-permitted TDD uplink duty cycle is greater than a maximum allowable TDD uplink duty cycle for the device, when the device performs TDD uplink transmission after receiving a scheduling grant from the wireless station, the device may decrease the TDD uplink duty cycle of the device or may decrease a time-average transmission power of the device.
    Type: Application
    Filed: May 7, 2019
    Publication date: November 12, 2020
    Inventors: Andrew E. Youtz, Xin Wang, Lily Zhu, Hui Zhao
  • Patent number: 10834393
    Abstract: A method and apparatus for selecting an intra interpolation filter for multi-line intra prediction based on a reference line index for decoding a video sequence includes identifying a set of reference lines associated with a coding unit. A first type of interpolation filter is applied to reference samples included in a first reference line, of the set of reference lines, that is adjacent to the coding unit to generate a first set of prediction samples based on the first reference line being associated with a first reference line index. A second type of interpolation filter is applied to reference samples included in a second reference line, of the set of reference lines, that is non-adjacent to the coding unit to generate a second set of prediction samples based on the second reference line being associated with a second reference line index.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: November 10, 2020
    Assignee: TENCENT AMERICA LLC
    Inventors: Liang Zhao, Xin Zhao, Xiang Li, Shan Liu
  • Patent number: 10833805
    Abstract: There are provided a method and an interface system for Bidirectional Synchronous Serial (BISS) protocol data decoding. The method includes: an MA drive module receiving an enable signal en and transmitting an MA clock signal to an SL receiving module, and then the SL receiving module detecting a trigger signal of SL; when a start bit of the SL is detected by the SL receiving module, the SL receiving module reading SL data; after the SL data is read, the SL receiving module transmitting a done signal to the MA drive module to stop operation of the MA drive module and transmitting a did signal to a CRC check module; and after the did signal is received by the CRC check module, the CRC check module performing CRC check on the SL data and outputting a correct position value after the check is completed.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: November 10, 2020
    Assignee: GUANGDONG UNIVERSITY OF TECHNOLOGY
    Inventors: Han Wang, Fangjian Zhang, Xin Chen, Xindu Chen, Nian Cai, Yunbo He, Yixiang Zhao, Canran Lin, Zhengyi Xin
  • Patent number: 10828565
    Abstract: A cross-platform game battle method and apparatus, a terminal, and a system are provided. The method includes sending a first request to a game server in response to a first operation, with respect to a game, on a first web page. A first response is received in response to the first request, and a game address is obtained according to the first response. The game address is sent to a second terminal, the game address being usable by the second terminal to obtain a second web page to start the game. The second terminal is on a platform that is different from a platform of the first web page.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: November 10, 2020
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Jun Zhang, Yipeng Zhao, Luxi Chen, Mingwei Zhang, Yunhui Yuan, Xin Zhou, Jianyang Wei, Yulin Huang, Jiaxing Li