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: 20200304782
    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. For example, the processing circuitry receives a bitstream including bits corresponding to residues of a block in a coded picture and parses the bitstream to extract at least one bit that is indicative of a potential usage of an angular prediction of the block. Further, the processing circuitry determines context for coding information of a secondary transform based on the at least one bit that is indicative of the potential usage of the angular prediction of the block, and decode the bits corresponding to the residues of the block using the secondary transform information that is decoded based on the context.
    Type: Application
    Filed: March 19, 2020
    Publication date: September 24, 2020
    Applicant: Tencent America LLC
    Inventors: Xin ZHAO, Xiang LI, Shan LIU
  • Publication number: 20200304815
    Abstract: Aspects of the disclosure provide methods and an apparatus including processing circuitry that decodes coded information of a coding block (CB) in a picture from a coded video bitstream. The coded information indicates a width W and a height H of the CB. The processing circuitry partitions the CB into sub-processing units (SPUs) having a width being a minimum one of W and K and a height being a minimum one of H and K. At least one of the width W and the height H is larger than a processing data unit size K. The processing circuitry determines a partitioning structure to partition the SPUs based on the width, the height, and a maximum transform unit (TU) size M. At least one of the width and the height is larger than M. The processing circuitry partitions each of the SPUs into TUs of M×M based on the partitioning structure.
    Type: Application
    Filed: March 19, 2020
    Publication date: September 24, 2020
    Applicant: Tencent America LLC
    Inventors: Xin ZHAO, Xiang LI, Shan LIU
  • Publication number: 20200296398
    Abstract: A method of video decoding performed in a video decoder. The method including receiving a coded video bitstream including a current picture. The method further including, performing an inverse quantization on a current block included in the current picture. The method further including performing, after performing the inverse quantization, an inverse transform on the current block. The method further including performing a prediction process on the current block after performing the inverse transform. The method further including, after performing the prediction process on the current block, determining whether a predetermined condition is satisfied. The method further including, in response to determining that the predetermined condition is met, performing an inverse color transform on the current block.
    Type: Application
    Filed: March 12, 2020
    Publication date: September 17, 2020
    Applicant: Tencent America LLC
    Inventors: Xin ZHAO, Xiaozhong XU, Xiang LI, Shan LIU
  • Publication number: 20200296421
    Abstract: Aspects of the disclosure provide methods and apparatuses for video encoding/decoding. An apparatus for video decoding includes processing circuitry that decodes prediction information for a current block in a current picture that is a part of a coded video sequence. The prediction information indicates a specific inter prediction mode, a position dependent prediction combination (PDPC) process, and a coded residual for the current block. The processing circuitry determines at least one of (i) a partition of the current block to which a transform process is to be applied and (ii) a transform type of the transform process for the current block based on the prediction information. The processing circuitry performs the transform process on the coded residual to generate a decoded residual. The processing circuitry reconstructs the current block based on the decoded residual.
    Type: Application
    Filed: March 11, 2020
    Publication date: September 17, 2020
    Applicant: Tencent America LLC
    Inventors: Liang ZHAO, Xiang LI, Xin ZHAO, Shan LIU
  • Publication number: 20200296399
    Abstract: A method for video decoding in a decoder is provided. In the method, transform block signaling information is acquired from a coded video bitstream. A transform type is determined based on the transform block signaling information. A low frequency coefficient of one of a plurality of sub transform units is determined based on the transform type and neighboring sub transform units of the one of the plurality of sub transform units. The plurality of sub transform units is partitioned from a current coding block unit (CU). The current coding block unit is subsequently decoded based on low frequency coefficients of the plurality of sub transform units, where the low frequency coefficients include the low frequency coefficient of the one of the plurality of sub transform units.
    Type: Application
    Filed: March 14, 2020
    Publication date: September 17, 2020
    Applicant: Tencent America LLC
    Inventors: Xin Zhao, Xiang Li, Shan Liu
  • Publication number: 20200296382
    Abstract: A method and apparatus for encoding or decoding a video sequence includes encoding or decoding the video sequence using a 4:4:4 chroma format, or encoding or decoding the video sequence using a 4:2:2 chroma format, wherein when encoding or decoding the video sequence using the 4:4:4 chroma format, copying an affine motion vector of one 4×4 luma block using an operation other than an averaging operation and associating the affine motion vector to a co-located 4×4 chroma block, and when encoding or decoding the video sequence using the 4:2:2 chroma format, associating each 4×4 chroma block with two 4×4 co-located luma blocks such that an affine motion vector of one 4×4 chroma block is an average of the motion vectors of the two co-located luma blocks.
    Type: Application
    Filed: March 11, 2020
    Publication date: September 17, 2020
    Applicant: TENCENT AMERICA LLC
    Inventors: Xin ZHAO, Xiaozhong XU, Xiang LI, Shan LIU
  • Publication number: 20200296418
    Abstract: A method of video decoding performed in a video decoder is provided. In the method, coded information of neighboring blocks of a current block is received from a coded video bitstream. The coded information includes intra prediction information of the neighboring blocks. Intra prediction information of the current block is determined based on the coded information of the neighboring blocks. An intra prediction direction mode is determined based on the intra prediction information of the current block. At least one sample of the current block is reconstructed according to the intra prediction direction mode of the current block.
    Type: Application
    Filed: March 12, 2020
    Publication date: September 17, 2020
    Applicant: TENCENT AMERICA LLC
    Inventors: Liang ZHAO, Xin ZHAO, Xiang LI, Shan LIU
  • Patent number: 10778751
    Abstract: It involves the field of power trading technology and a method for microservice transformation of power trading function comprising the following steps: (1) divide the function in extranet trading cloud into many multiple individual micro services and divide the function in intranet trading cloud into multiple individual micro services; (2) register a node information for each individual micro service in service registry when service deployment starts; (3) extranet users and intranet users enter into extranet trading cloud and intranet trading cloud respectively through PC terminal or mobile terminal, obtain the actual network address that needs to be served from service registry, send a request to the requested service, and perform related business operation.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: September 15, 2020
    Assignees: BEIJING KEDONG POWER CONTROL SYSTEM CO., LTD, NARI GROUP CORPORATION, STATE GRID CORPORATION OF CHINA
    Inventors: Lin Cheng, Haining Wang, Xian Zhang, Chuncheng Gao, Yonghui Liu, Yin Fang, Shuhong Shi, Yong Dai, Li Tao, Chunyan Wang, Mingzhu Yuan, Lei Wang, Tao Wang, Jie Liu, Xian Zhao, Xiang Tan, Ning Yang, Shoubao Li, Peiyu Xi, Qian Zhang, Dong Liu, Wujun Dong, Wentao Lv, Shulu Wan, Wei Wang, Xiaopeng Yuan, Junliang Lv, Lin Zhang, Xin Chang, Yujian Wu
  • Patent number: 10778971
    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: Grant
    Filed: September 28, 2018
    Date of Patent: September 15, 2020
    Assignee: Tencent America LLC
    Inventors: Shan Liu, Stephan Wenger, Xin Zhao, Xiang Li, Liang Zhao
  • Patent number: 10778993
    Abstract: The techniques described herein relate to methods, apparatus, and computer readable media configured to derive a composite track. Three-dimensional video data includes a plurality of two-dimensional sub-picture tracks associated with a viewport. A composite track derivation for composing the plurality of two-dimensional sub-picture tracks for the viewport includes data indicative of the plurality of two-dimensional sub-picture tracks belonging to a same group, placement information to compose sample images from the plurality of two-dimensional tracks into a canvas associated with the viewport, and a composition layout operation to adjust the composition if the canvas comprises a composition layout created by two or more of the plurality of two-dimensional sub-picture tracks composed on the canvas. The composite track derivation can be encoded and/or used to decode the three-dimensional video data.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: September 15, 2020
    Assignee: MediaTek Inc.
    Inventors: Xin Wang, Lulin Chen, Shuai Zhao
  • Publication number: 20200282411
    Abstract: The present disclosure provides an electrostatic nozzle and a controllable jet minimal quantity lubrication (MQL) grinding system. The electrostatic nozzle comprises a nozzle core; an upper nozzle body is connected above the nozzle core; a free space is formed between the upper nozzle body and the nozzle core for storing compressed air and reducing pressure; a lower nozzle body is connected below the nozzle core; a gas-liquid mixing chamber, an acceleration chamber and a nozzle outlet are sequentially arranged inside the nozzle core from top to bottom; and micro-bulges are uniformly distributed on an inner wall of the acceleration chamber.
    Type: Application
    Filed: January 15, 2020
    Publication date: September 10, 2020
    Inventors: Changhe LI, Dongzhou JIA, Huajun CAO, Xuefeng XU, Zhiguang HAN, Naiqing ZHANG, Huayang ZHAO, Min YANG, Yanbin ZHANG, Xiaoming WANG, Runze LI, Teng GAO, Wentao WU, Xin CUI, Yali HOU
  • Publication number: 20200288131
    Abstract: A method and apparatus for performing maximum transform size control for decoding of a video sequence includes identifying, by a decoder, a high-level syntax element associated with the video sequence. A maximum transform size associated with the video sequence is determined based on identifying the high-level syntax element associated with the video sequence. The video sequence is decoded using the maximum transform size based on determining the maximum transform size associated with the video sequence. The video sequence is transmitted based on decoding the video sequence using the maximum transform size.
    Type: Application
    Filed: February 28, 2020
    Publication date: September 10, 2020
    Applicant: TENCENT AMERICA LLC
    Inventors: Xin ZHAO, Xiang LI, Shan LIU
  • Publication number: 20200288121
    Abstract: Aspects of the disclosure provide methods and apparatuses for video encoding/decoding. In some examples, an apparatus for video decoding includes processing circuitry. The processing circuitry can decode coding information of a coefficient block from a coded video bitstream. The coding information can indicate a size of the coefficient block. The processing circuitry can determine, based on the size of the coefficient block, an order in which inverse horizontal and inverse vertical transforms of an inverse primary transform are to be performed on transform coefficients of the coefficient block to obtain residual data of a residual block. When the size of the coefficient block satisfies a condition, the inverse vertical transform is performed after the inverse horizontal transform is performed on the transform coefficients of the coefficient block. The processing circuitry can reconstruct a sample in the residual block based on the residual data.
    Type: Application
    Filed: March 6, 2020
    Publication date: September 10, 2020
    Applicant: Tencent America LLC
    Inventors: Xin ZHAO, Xiang LI, Shan LIU
  • Publication number: 20200281913
    Abstract: The present invention relates to metallo-?-lactamase inhibitor compounds of Formula (I) and pharmaceutically acceptable salts thereof, wherein Z, RA, X1, X2 and R1 are as defined herein. The present invention also relates to compositions which comprise a metallo-?-lactamase inhibitor compound of the invention or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier, optionally in combination with a beta lactam antibiotic and/or a beta-lactamase inhibitor. The invention further relates to methods for treating a bacterial infection comprising administering to a patient a therapeutically effective amount of a compound of the invention, in combination with a therapeutically effective amount of one or more ?-lactam antibiotics and optionally in combination with one or more beta-lactamase inhibitor compounds. The compounds of the invention are useful in the methods described herein for overcoming antibiotic resistance.
    Type: Application
    Filed: July 12, 2018
    Publication date: September 10, 2020
    Applicant: Merck Sharp & Dohme Corp.
    Inventors: Alexander Pasternak, Shuzhi Dong, Jack D. Scott, Haiqun Tang, Zhiqiang Zhao, Dexi Yang, Xin Gu, Jinlong Jiang, Li Xiao
  • Patent number: 10771778
    Abstract: A method of and device for controlling multi-line intra prediction using a non-zero reference line. The method includes determining whether an intra prediction mode of a first neighboring block of a current block is an angular mode, determining whether an intra prediction mode of a second neighboring block of the current block is an angular mode, and generating a Most Probable Mode (MPM) list that consists of six candidate modes for intra prediction of the current block. Each of the six candidate modes are angular modes.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: September 8, 2020
    Assignee: TENCENT AMERICA LLC
    Inventors: Liang Zhao, Xin Zhao, Xiang Li, Shan Liu
  • Patent number: 10766636
    Abstract: A holding apparatus includes a support base configured to hold an electronic device, a driving device configured to drive the support base, a detecting device configured to detect a mounting state of the electronic device, and a control circuit coupled to the detecting device. The control circuit is configured to receive a detection result from the detecting device and control a power output of the driving device according to the detection result.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: September 8, 2020
    Assignee: SZ DJI OSMO TECHNOLOGY CO., LTD.
    Inventors: Xin Yan, Xifeng Zhao, Guoqing Li
  • Patent number: 10771782
    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 syntax 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 intra 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: Grant
    Filed: March 20, 2019
    Date of Patent: September 8, 2020
    Assignee: Tencent America LLC
    Inventors: Xin Zhao, Liang Zhao, Shan Liu, Xiang Li
  • Patent number: 10768434
    Abstract: A laser beam combining system, including at least one beam combining unit. The beam combining unit includes reflective device, polarization conversion element and beam combining device. The reflective device includes two reflective surfaces configured to divide a high-polarization laser into a first beam and a second beam. The first beam is incident on the beam combining device. The polarization conversion element is provided on a propagation path of the second beam to convert the second beam into a light having a polarization direction perpendicular to an original polarization direction of the second beam. The converted light is guided to the beam combining device which is configured to combine the first beam and the converted light into one beam for outputting.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: September 8, 2020
    Assignee: Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy Of Sciences
    Inventors: Cunzhu Tong, Yufei Zhao, Fangyuan Sun, Shili Shu, Lijie Wang, Xin Zhang, Sicong Tian, Lijun Wang
  • Patent number: 10763811
    Abstract: A system may include a digital modulator configured to modulate an input signal received at an input of the digital modulator to generate a modulated input signal at an output of the digital modulator, a digital gain element having a digital gain and coupled to the digital modulator, an open-loop Class-D amplifier coupled to an output of the digital modulator and configured to amplify the modulated input signal, wherein the open-loop Class-D amplifier is powered from a variable power supply having a variable supply voltage which is variable in response to one or more characteristics of the input signal, and a control circuit configured to control the digital gain to approximately cancel changes in an analog gain of the open-loop Class-D amplifier due to variation in the variable supply voltage in response to the one or more characteristics of the input signal.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: September 1, 2020
    Assignee: Cirrus Logic, Inc.
    Inventors: Lei Zhu, Tejasvi Das, John L. Melanson, Wai-shun Wilson Shum, Jing Bai, Xin Zhao, Xiaofan Fei
  • Patent number: 10763768
    Abstract: An on-load tap changer that includes an actuator configured to adjust a turn ratio of the transformer, and a processing unit configured to control the actuator and to communicate with a control device via a digital signal connection. The processing unit is further configured to receive a status detected by a sensor. A method of manufacturing the on-load tap changer is also disclosed. Embodiments according to the present disclosure provide a digitalized on-load tap changer that allows various statuses to be monitored or controlled, by which various advantages can be achieved. For example, the life of a contact of the transformer can be predicted. Other data can be used to determine whether it is safe to adjust the contact of the transformer. Moreover, the optical fibers between the on-load tap changer and an external device enable an isolated transmission of control and data signals that almost eliminates interferences.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: September 1, 2020
    Assignee: ABB Power Grids Switzerland AG
    Inventors: Bo Hu, Xin Zhao, Huigang Sun