Patents by Inventor Li Zhang

Li 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).

  • Patent number: 11870974
    Abstract: A method, a video processing apparatus and computer-readable program medium for video process is disclosed. The method of video processing includes deriving, during a conversion between a current block of video and a bitstream representation of the current block, a new affine model using multiple original affine models with control point motion vectors; and performing the conversion by using the new affine model.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: January 9, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11870979
    Abstract: Methods, apparatus, systems for video processing, including video encoding or video decoding are described. One example method includes performing a conversion between a video comprising a video picture that includes a video slice and a bitstream of the video. The bitstream conforms to a format rule specifying that, in case a slice type of the video slice is type P and temporal motion vector prediction is enabled, usage of reference picture resampling (RPR) for a reference picture in a collocated reference picture list is disabled. The reference picture is indicated by a reference index of a collocated picture of the video slice used for the temporal motion vector prediction.
    Type: Grant
    Filed: August 11, 2022
    Date of Patent: January 9, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Zhipin Deng, Li Zhang, Kai Zhang, Ye-kui Wang, Kui Fan
  • Patent number: 11870996
    Abstract: A method for video processing includes determining that a size of a residual block of a video is larger than a maximum block size allowed for a transform skip mode, in which, during a decoding operation, residual coefficients are decoded without performing an inverse transform operation; splitting, based on the size of a residual block, the residual block into multiple regions, wherein each region represents a portion of the residual block of a difference between a portion of a current video block and a prediction block corresponding to the portion of the current video block; and determining a reconstructed current video block from the residual block based on selectively performing the inverse transform operation according to an indicator that indicates the transform skip mode.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: January 9, 2024
    Assignee: BYTEDANCE INC.
    Inventors: Weijia Zhu, Li Zhang, Jizheng Xu
  • Patent number: 11871039
    Abstract: Several techniques for video encoding and video decoding are described. One example method includes performing a conversion between a video including a video unit and a bitstream of the video according to a rule, wherein the rule specifies whether a transform skip residual coding operation is enabled for the video unit, and wherein one or more syntax elements are included in the bitstream at a video segment level indicative of whether the transform skip residual coding operation is enabled for the video unit.
    Type: Grant
    Filed: August 26, 2022
    Date of Patent: January 9, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Jizheng Xu, Li Zhang, Ye-kui Wang, Kai Zhang, Zhipin Deng
  • Patent number: 11870987
    Abstract: Devices, systems and methods for digital video coding, which includes using default motion candidates for video coding, are described. An exemplary method for video processing includes determining, for a conversion between a block of a video and a bitstream representation of the video, weights to use for a weighted average of prediction samples along an edge of two partitions of the block. The two partitions are generated according to a geometry partition mode, and the weights are selected from a first weighting factor group that at least one of the weights is equal to 0 or 1. The method also includes performing the conversion based on the determining.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: January 9, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Jizheng Xu, Yue Wang
  • Patent number: 11866262
    Abstract: An automatically tray feeding device includes: at least one conveying mechanism configured to convey a tray at different heights; at least one lifting mechanism configured to move the tray on a conveying mechanism at a first height to a conveying mechanism at a second height different from the first height; and a sorting table frame configured to carry the at least one conveying mechanism and the at least one lifting mechanism.
    Type: Grant
    Filed: October 27, 2021
    Date of Patent: January 9, 2024
    Assignees: Nuctech Company Limited, Tsinghua University
    Inventors: Zhiqiang Chen, Li Zhang, Jinning Liang, Qingping Huang, Mingzhi Hong, Yanhua Lu, Bo Li, Yue Li, Majie Weng
  • Patent number: 11870576
    Abstract: An apparatus for wireless communication is provided. The apparatus may be a receiver device that includes an error correction decoder, such as a low-density parity check (LDPC) decoder. The apparatus may achieve power savings and/or operation cycle savings by disabling the error correction decoder in scenarios where bits of a codeword in a signal transmission are received without errors. The apparatus obtains a first set of bits of a codeword, wherein the codeword includes the first set of bits and a second set of bits, and wherein the second set of bits is punctured. The apparatus recovers the second set of bits based on at least the first set of bits and determines whether to operate an error correction decoder based on a result of an error detection operation performed on the codeword using the first set of bits and the second set of bits.
    Type: Grant
    Filed: March 29, 2022
    Date of Patent: January 9, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Hobin Kim, Hari Sankar, Alessandro Risso, Harsha Acharya, Alexei Yurievitch Gorokhov, Li Zhang
  • Patent number: 11866502
    Abstract: Provided herein are monoclonal antibodies, and antigen-binding fragments thereof, that bind fibroblast growth factor receptor 2 (FGFR2), and methods of use thereof and methods of use thereof. Also included are antibody-drug conjugates (ADCs) comprising the anti-FGFR2 antibodies or antigen-binding fragments thereof linked to a cytotoxic agent, radionuclide, or other moiety, as well as methods of treatment using the same.
    Type: Grant
    Filed: October 21, 2021
    Date of Patent: January 9, 2024
    Assignee: Regeneron Pharmaceuticals, Inc.
    Inventors: Christopher Daly, Frank Delfino, Amy Han, Thomas Nittoli, Li Zhang
  • Patent number: 11871006
    Abstract: Devices, systems and methods for digital video coding, which includes inter prediction with refinement, are described. An exemplary method of video processing includes determining to use, for a conversion between a current block of a video and a bitstream representation of the video, a first linear optimization model for the conversion using a first coding mode, the first linear optimization model being derived from a second linear optimization model that is used for the conversion using a second coding mode, and performing, based on the determining, the conversion. Another exemplary method of video processing includes determining to use, for a conversion between a current block of a video and a bitstream representation of the video, a gradient value computation algorithm for a bi-directional optical flow tool, and performing, based on the determining, the conversion.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: January 9, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11871025
    Abstract: Devices, systems and methods for digital video coding, which include sub-block based inter prediction methods, are described. An exemplary method for video processing includes determining, for a conversion between a current block of video and a bitstream representation of the video, a maximum number of candidates in a sub-block based merge candidate list and/or whether to add sub-block based temporal motion vector prediction (SbTMVP) candidates to the sub-block based merge candidate list based on whether temporal motion vector prediction (TMVP) is enabled for use during the conversion or whether a current picture referencing (CPR) coding mode is used for the conversion, and performing, based on the determining, the conversion.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: January 9, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Jizheng Xu, Yue Wang
  • Patent number: 11871487
    Abstract: A portable lighting device includes a housing, a light source supported by the housing, and an alkaline battery positioned within the housing and coupled to the light source. The alkaline battery is configured to provide a drive current to the light source, and an intensity of the light source is dependent on the drive current. The portable lighting device also includes an electronic processor positioned within the housing and coupled to the light source and the alkaline battery. The electronic processor is configured to monitor a voltage of the alkaline battery, and execute a ramp-up algorithm to control the drive current based on the voltage of the alkaline battery.
    Type: Grant
    Filed: January 6, 2023
    Date of Patent: January 9, 2024
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventors: Li Zhang, Hao Cui, DanJun Guo
  • Publication number: 20240007664
    Abstract: Devices, systems, and methods for asymmetric weighted bi-predictive merging in video coding are described. In a representative aspect, a method for decoding video data includes determining that a current video block of the video data is predicted from an asymmetric bi-predictive merge candidate, where different weights are used for a first reference block and a second reference block, and making, based on the determination, a determination between enabling and disabling a coding tool for the current video block. In a case that the current video block is predicted from an asymmetric bi-predictive merge candidate, the coding tool is not applied to the current video block.
    Type: Application
    Filed: July 14, 2023
    Publication date: January 4, 2024
    Inventors: Hongbin LIU, Li ZHANG, Kai ZHANG, Yue WANG
  • Publication number: 20240007628
    Abstract: A mechanism for processing video data implemented by a video coding apparatus is disclosed. The mechanism determines usage of one or more of a separate tree coding and a partitioning beyond a minimum size threshold for a video unit. The mechanism also disables a cross-component coding tool for the video unit based on the determination. A conversion between a visual media data and a bitstream is performed in accordance with the coding tool being disabled.
    Type: Application
    Filed: September 18, 2023
    Publication date: January 4, 2024
    Inventors: Kai Zhang, Li Zhang, Xi Xie, Junru Li, Meng Wang
  • Patent number: 11861963
    Abstract: The present disclosure provides a smart lock, including: a lock body and an unlocking structure; a Bluetooth communication module configured to receive a lock instruction or an unlock instruction based on Bluetooth communication; and one or more binding tags, each binding tag being associated with a Bluetooth address of the smart lock, wherein the unlocking structure is configured to lock or unlock the smart lock based on the lock instruction or the unlock instruction, or lock or unlock the smart lock based on an operation performed for the one or more binding tags. The present disclosure further provides a system and method for monitoring an object equipped with the smart lock.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: January 2, 2024
    Assignees: NUCTECH COMPANY LIMITED, Tsinghua University
    Inventors: Li Zhang, Gang Peng, Qingping Huang, Liang Li, Fan Yang, Jiabao Chen, Kun Cheng, Zhifeng He
  • Patent number: 11863771
    Abstract: A method for processing a video includes maintaining one or more tables, wherein each table includes motion candidates derived from previously processed video blocks that are processed prior to a first video block of a video; deriving motion information for the first video block; applying refinement to the motion information when at least one decoder side motion vector derivation (DMVD) technologies is enabled; performing a conversion between a bitstream representation of the first video block and the first video block using the refined motion information; and determining, whether to use the refined motion information or un-refined motion information for updating one or more tables.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: January 2, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Jizheng Xu, Yue Wang
  • Patent number: 11863768
    Abstract: Systems, methods and apparatus for processing image data are described. One example method includes performing a conversion between a visual media file and a bitstream. The visual media file comprises image items each comprising a sequence of pictures according to a media file format, and the bitstream comprises access units each comprising one or more pictures each belonging to a layer according to a video coding format. The media file format specifies a suggested transition period of an image item to be applied for a transition between the image item and a next image item during displaying of the pictures as a slideshow.
    Type: Grant
    Filed: September 1, 2021
    Date of Patent: January 2, 2024
    Assignee: Lemon Inc.
    Inventors: Ye-Kui Wang, Li Zhang
  • Patent number: 11863781
    Abstract: A method includes performing a conversion between a current slice of a current picture of a video and a bitstream of the video, wherein the bitstream conforms to a format rule, and wherein the format rule specifies that a general constraint information syntax structure, which comprises one or more constraint flags indicating constraints on an explicit weighted prediction being enabled for slices of a set of pictures, is present.
    Type: Grant
    Filed: August 19, 2022
    Date of Patent: January 2, 2024
    Assignee: BYTEDANCE INC.
    Inventors: Ye-kui Wang, Li Zhang
  • Patent number: 11858566
    Abstract: A track link having sensor-receiving cavities and a method of producing a track link is disclosed. The track link may include a link body and a cavity formed in the link body configured to receive a sensing device. The track link may also include a protrusion substantially surrounding the cavity. The protrusion may include a substantially flat surface.
    Type: Grant
    Filed: July 27, 2021
    Date of Patent: January 2, 2024
    Assignees: Caterpillar Inc., AsiaTrak (Tianjin) Ltd.
    Inventors: Donald J. Kalmes, William P. Shoemaker, Yaodong Zhou, Li Zhang
  • Patent number: 11863762
    Abstract: Embodiments for video processing, including video coding, video decoding and video transcoding are described. One example method includes performing a conversion between a video having one or more layers having one or more video pictures having one or more subpictures and a bitstream of the video according to a rule, wherein the rule defines network abstraction layer (NAL) units to be extracted from a bitstream during a sub-bitstream extraction process to output a sub-bitstream, wherein the rule further specifies that one or more inputs to the sub-bitstream extraction process include a target output layer set (OLS) index (targetOlsIdx) that identifies an OLS index of a target OLS and is equal to an index to a list of OLSs specified by a video parameter set, and wherein the one or more inputs satisfy a set of conditions.
    Type: Grant
    Filed: November 22, 2022
    Date of Patent: January 2, 2024
    Assignees: BEIJING BYTEDANCE TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Ye-kui Wang, Zhipin Deng, Kai Zhang, Li Zhang
  • Patent number: D1010700
    Type: Grant
    Filed: November 7, 2022
    Date of Patent: January 9, 2024
    Assignees: SHENZHEN YOUBIXING TECHNOLOGY CO., LTD, UBTECH ROBOTICS CORP LTD
    Inventors: Yiping Li, Guangchao Zhao, Qiujie Lin, Guisong Lu, Lì Zhang, Ke Wen