Patents by Inventor Liang Zhao

Liang 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: 20230086949
    Abstract: This disclosure relates generally to video coding and particularly to methods and systems for providing signaling schemes for motion vector difference. An example method for decoding a current video block of a video bitstream is disclosed. The method includes receiving a coded video bitstream; obtaining, from the coded video bitstream, a first motion vector difference (MVD) and a dynamic reference list (DRL) index for a current video block; deriving a second MVD for the current video block based on the first MVD; generating, by the device, a motion vector (MV) pair based on the first MVD, the derived second MVD, and a motion vector predictor (MVP) indicated by the DRL index; and decoding, by the device based on the MV pair, the current video block.
    Type: Application
    Filed: September 15, 2022
    Publication date: March 23, 2023
    Applicant: Tencent America LLC
    Inventors: Liang ZHAO, Xin ZHAO, Shan LIU
  • Publication number: 20230093043
    Abstract: This disclosure relates to adaptively reordering reference frames for video coding technologies. Template matching (TM) may be used to reorder the reference frames or reference frame pairs for each block by comparing the difference between the template of a current block and the template of a reference block with reference to the motion information of the spatial reference motion information (or spatial motion vectors) and/or temporal reference motion information (or temporal motion vectors). The difference between the template of current block and the template of the reference block may be calculated for each spatial reference motion information and/or temporal reference motion information, and marked as the score value of the associated reference frames or reference frame pairs. The available reference frames or reference frame pairs are ranked based on the score value.
    Type: Application
    Filed: September 15, 2022
    Publication date: March 23, 2023
    Applicant: TENCENT AMERICA LLC
    Inventors: Liang Zhao, Xin Zhao, Shan Liu
  • Publication number: 20230093663
    Abstract: A method of signaling an intra prediction mode used to encode a current block in an encoded video bitstream using at least one processor includes generating a first most probable mode (MPM) list corresponding to a zero reference line of the current block, wherein the first MPM list includes a plurality of angular intra prediction modes; generating a second MPM list corresponding to one or more non-zero reference lines of the current block, wherein the second MPM list includes the plurality of angular intra prediction modes; signaling a reference line index indicating a reference line used to encode the current block from among the zero reference line and the one or more non-zero reference lines; and signaling an intra mode index indicating the intra prediction mode within the first MPM list or the second MPM list.
    Type: Application
    Filed: November 29, 2022
    Publication date: March 23, 2023
    Applicant: TENCENT AMERICA LLC
    Inventors: Liang ZHAO, Xin ZHAO, Xiang LI, Shan LIU
  • Publication number: 20230078666
    Abstract: A satellite signal method includes: receiving a satellite signal at an apparatus; transmitting, from the apparatus, one or more outbound signals; and inhibiting processing, by the apparatus, of at least a first portion of the satellite signal spanning a first frequency set that includes at least a portion of an interference signal corresponding to transmission of the one or more outbound signals.
    Type: Application
    Filed: September 15, 2021
    Publication date: March 16, 2023
    Inventors: Jean-Pierre RAFFEGEAU, Jordan COOKMAN, Daniel CAROLIN, Liang ZHAO, Angelica WONG, Jeffrey WONG
  • Publication number: 20230069984
    Abstract: Methods, apparatus, and computer readable storage medium for intra prediction mode coding in video decoding. The method includes receiving a coded video bitstream; constructing a list of intra modes for a block in the coded video bitstream according to a pre-defined rule based on a size of the block; dividing the list of intra modes into a plurality of intra mode sets for the block; extracting, from the coded video bitstream, a set index indicating an intra mode set from the plurality of intra mode sets; extracting, from the coded video bitstream, a mode index indicating an intra prediction mode from the intra mode set; determining the intra prediction mode for the block based on the set index and the mode index; and decoding the coded video bitstream based on the intra prediction mode.
    Type: Application
    Filed: January 12, 2022
    Publication date: March 9, 2023
    Applicant: Tencent America LLC
    Inventors: Liang ZHAO, Xin ZHAO, Shan LIU
  • Publication number: 20230071554
    Abstract: Techniques are provided for improving ranging accuracy of ultrawideband (UWB) devices. An example method for obtaining a distance measurement with a wireless node includes obtaining a first distance measurement using a first radio link, determining a status of a second radio link in response to the first distance measurement being less than a threshold distance, configuring one or more transceiver parameters associated with the second radio link in response to determining the second radio link is utilizing a non-line of sight path, and obtaining a second distance measurement using the second radio link and the one or more transceiver parameters.
    Type: Application
    Filed: September 9, 2021
    Publication date: March 9, 2023
    Inventors: Xiaoxin ZHANG, Le Nguyen LUONG, Liang ZHAO, Rishabh RAJ, Ravindra CHAUHAN
  • Publication number: 20230060151
    Abstract: A method for video encoding includes determining an intra prediction angle for encoding a current block in a coded video sequence, the intra prediction angle being (i) beyond a bottom left direction diagonal mode, or (ii) beyond a top right direction diagonal mode. The method further includes determining an intra prediction mode corresponding to the intra prediction angle used to encode the current block based on a predetermined relationship between a plurality of intra prediction modes and a corresponding plurality of intra prediction angles, and generating prediction information indicating the determined intra prediction mode corresponding to the intra prediction angle used to encode the current block.
    Type: Application
    Filed: October 31, 2022
    Publication date: March 2, 2023
    Applicant: Tencent America LLC
    Inventors: Xin ZHAO, Liang ZHAO, Shan LIU, Xiang LI
  • Publication number: 20230063434
    Abstract: A method for inhibiting jammed signal use includes: receiving a desired signal wirelessly at a receiver; receiving an undesired signal wirelessly at the receiver, the undesired signal varying in strength over time; and inhibiting measurement of the desired signal, or use of a measurement of the desired signal, based on a determination that the undesired signal is a jamming signal based on a variation of the undesired signal being indicative of jamming.
    Type: Application
    Filed: August 26, 2021
    Publication date: March 2, 2023
    Inventors: Jordan COOKMAN, Daniel CAROLIN, Angelica WONG, Krishnaranjan RAO, Liang ZHAO, Jeffrey WONG
  • Publication number: 20230067256
    Abstract: A satellite signal processing method includes: receiving, at a user equipment, a first satellite signal of a first frequency band from at least one satellite of a constellation of satellites; receiving, at the user equipment, a second satellite signal of a second frequency band and from the at least one satellite of the constellation of satellites; and controlling an activation status of at least one of: a first satellite signal receive chain, of the user equipment, configured to measure the first satellite signal; or a second satellite signal receive chain, of the user equipment, configured to measure the second satellite signal.
    Type: Application
    Filed: August 25, 2021
    Publication date: March 2, 2023
    Inventors: Rayman PON, Pranav IYENGAR, Liang ZHAO
  • Publication number: 20230061507
    Abstract: A method for video decoding includes determining that an angular intra prediction mode for a current block is a wide angle mode. The method further includes 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 further includes, in response to a determination that an intra prediction coding tool and coding tool parameters are specified for the determined non-wide angle mode, performing intra prediction for the current block using the wide angle mode, using the intra prediction coding tool, and using the coding tool parameters specified for the determined non-wide angle mode.
    Type: Application
    Filed: October 28, 2022
    Publication date: March 2, 2023
    Applicant: Tencent America LLC
    Inventors: Liang ZHAO, Xin ZHAO, Xiang LI, Shan LIU
  • Patent number: 11595688
    Abstract: Methods, apparatuses, and non-transitory computer-readable storage mediums for video encoding/decoding are provided. In a method, prediction information of a current block of a coding unit tree is generated. The prediction information indicates at least one block partitioning structure is allowed for the current block and a SBT mode is used for the current block. A partition direction and a partition size of the SBT mode for the current block is determined based on the at least one allowed block partitioning structure indicated in the prediction information and based on a comparison between at least one dimension of the current block and a first threshold. A partition of the current block based on the partition direction and the partition size of the SBT mode is different from at least one partition of the current block based on the at least one allowed block partitioning structure indicated in the prediction information.
    Type: Grant
    Filed: April 8, 2022
    Date of Patent: February 28, 2023
    Assignee: Tencent America LLC
    Inventors: Xiang Li, Xin Zhao, Liang Zhao, Shan Liu
  • Patent number: 11595666
    Abstract: A method of performing intra prediction of a current block of a picture of a video sequence, includes determining whether a first flag indicates that an intra prediction mode corresponding to the current block is a directional mode, and based on the first flag being determined to indicate that the intra prediction mode corresponding to the current block is the directional mode, determining an index of the intra prediction mode in an allowed intra prediction modes (AIPM) list, and performing the intra prediction of the current block, using the intra prediction mode corresponding to the determined index in the AIPM list.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: February 28, 2023
    Assignee: TENCENT AMERICA LLC
    Inventors: Liang Zhao, Xin Zhao, Shan Liu
  • Publication number: 20230056191
    Abstract: Aspects of the disclosure include methods, apparatuses, and non-transitory computer-readable storage mediums for video encoding/decoding. An apparatus includes processing circuitry that decodes prediction information of a current block in a current picture that is a part of a coded video sequence. The prediction information indicates one of a plurality of intra prediction directions for the current block. The processing circuitry determines a subset of a plurality of reference lines based on (i) a reference line index of each of the subset of the plurality of reference lines and (ii) a tangent value of a prediction angle associated with the one of the plurality of intra prediction directions indicated in the prediction information. The processing circuitry performs an intra prediction of the current block based on the determined subset of the plurality of reference lines, and reconstructs the current block based on the intra prediction of the current block.
    Type: Application
    Filed: November 4, 2022
    Publication date: February 23, 2023
    Applicant: Tencent America LLC
    Inventors: Xin ZHAO, Liang ZHAO, Shan LIU
  • Publication number: 20230053500
    Abstract: The present disclosure relates to a semiconductor device and a forming method thereof. The forming method includes: providing a substrate; forming node contacts inside the substrate; forming landing pads on an upper surface of the substrate, where the landing pad is in contact with the node contact; forming a barrier layer on exposed surfaces of the landing pads and the node contacts; and after performing an electrical test on the semiconductor device on which the barrier layer is formed, removing the barrier layer on an upper surface of the landing pads.
    Type: Application
    Filed: April 12, 2021
    Publication date: February 23, 2023
    Inventors: Kai CAO, Liang ZHAO
  • Publication number: 20230051558
    Abstract: Systems and methods for improved delta angle signaling for blocks in video compression are provided. A method includes encoding a bitstream that includes a picture. The encoding includes obtaining a nominal angle of a current block of the picture for intra prediction; obtaining a nominal angle of at least one neighboring block of the current block for intra prediction; determining whether to signal all allowed delta angles of the nominal angle of the current block, or only a subset of the allowed delta angles of the nominal angle of the current block, based on a comparison between the nominal angle of the current block and the nominal angle of the at least one neighboring block; and signaling, within the bitstream, all the allowed delta angles or the subset of the allowed delta angles of the nominal angle of the current block based on the determining.
    Type: Application
    Filed: October 14, 2022
    Publication date: February 16, 2023
    Applicant: Tencent America LLC
    Inventors: Liang ZHAO, Xin ZHAO, Shan LIU
  • Publication number: 20230052287
    Abstract: An electroplated steel wire segment-combined grinding wheel includes a base component for connecting an external device, and steel wire segments, wherein the steel wire segments are combined and assembled on the base component in a ring, and outer walls of the steel wire segments are plated with diamonds to form a grinding surface. The steel wire segments are combined and assembled mechanically on a support base, wherein the support base is a reusable tool, and replacing the grinding surface combined by the steel wire segments is convenient for reducing a renovation cost of the electroplated steel wire segment-combined grinding wheel. For the electroplated steel wire segment-combined grinding wheel, drainage channels are naturally formed between the steel wire segments and segment arcs, and thus, internally cooled type cooling and rapid chip removal are facilitated.
    Type: Application
    Filed: December 28, 2020
    Publication date: February 16, 2023
    Applicants: GUILIN CHAMPION UNION DIAMOND CO., LTD.
    Inventors: Jingxin SONG, Huiling LONG, Anning LIANG, Liang ZHAO, Zhiyong WANG
  • Publication number: 20230040520
    Abstract: An approach for encoding/decoding video data including parsing video data to obtain partitioning parameters; obtaining a partitioned super block; and decoding based on the partitioned super block, wherein based on a luma block area size, or a luma splitting depth of the smallest luma block, either luma blocks and chroma blocks of the partitioned super block are partitioned based on a first block partitioning structure, or the luma blocks are partitioned based on the first block partitioning structure, and the chroma blocks are partitioned based on a second block partitioning structure.
    Type: Application
    Filed: September 29, 2022
    Publication date: February 9, 2023
    Applicant: TENCENT AMERICA LLC
    Inventors: Liang ZHAO, Xin ZHAO, Shan LIU
  • Publication number: 20230037509
    Abstract: A video decoding method includes: obtaining a bitstream including a plurality of coded frames of a video signal; decoding each of the plurality of coded frames into a plurality of super blocks and each of the plurality of super blocks into a plurality of residual blocks; recovering a coded block (CB) for each of the plurality of residual blocks based on multiple reference line intra prediction (MRLP) flags and reference samples included in each coded frame, wherein multiple reference lines are divided into above-side reference lines and left-side reference lines and one above-side reference line and one left-side reference line are selected for intra prediction; reconstructing each frame of the video signal by storing the recovered CB for each of the plurality of residual blocks in a frame buffer; and continuously outputting the reconstructed frames to restore the video signal.
    Type: Application
    Filed: October 8, 2022
    Publication date: February 9, 2023
    Inventors: Liang ZHAO, Xin ZHAO, Shan LIU
  • Patent number: 11575918
    Abstract: A method, computer program, and computer system is provided for encoding video data. Data corresponding to a video frame is received. One or more luma and chroma samples from are identified from the received image data. Two or more linear models are determined from the identified luma and chroma samples. The luma and chroma samples are classified into a number of categories corresponding to a number of linear models, and each category has one or more corresponding linear model parameters signaled to the bitstream.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: February 7, 2023
    Assignee: TENCENT AMERICA LLC
    Inventors: Liang Zhao, Xin Zhao, Shan Liu
  • Patent number: D980096
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: March 7, 2023
    Assignees: Mettler-Toledo (Changzhou) Measurement Technology Ltd., Mettler-Toledo (Changzhou) Precision Instruments Ltd., Mettler-Toledo International Trading (Shanghai) Co., Ltd.
    Inventors: Peng Jiang, Wanchuan Hu, Xu Sun, Dongsong Li, Liang Zhao, Jian Gong, Guangteng Zhu