Patents by Inventor Kai Zhang

Kai 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).

  • Publication number: 20220150540
    Abstract: A method for video processing is described. The method includes determining, for a conversion between a current video block of a video picture of a video and a coded representation of the video, a number of reference samples in a reference region of the video picture used for predicting the current video block, based on a rule, wherein the rule specifies that the number of reference samples is limited to a certain range; and performing, based on the determining, the conversion.
    Type: Application
    Filed: January 24, 2022
    Publication date: May 12, 2022
    Inventors: Jizheng XU, Li ZHANG, Kai ZHANG, Hongbin LIU
  • Publication number: 20220150474
    Abstract: A method of video processing includes maintaining, for a conversion between a current video block of a current picture of a visual media data and a bitstream representation of the visual media data, a buffer comprising reference samples from the current picture for a derivation of prediction samples of the current video block. One or more reference samples in the buffer that are marked unavailable for the derivation have values outside of a pixel value range.
    Type: Application
    Filed: January 7, 2022
    Publication date: May 12, 2022
    Inventors: Jizheng XU, Li ZHANG, Kai ZHANG, Hongbin LIU, Yue WANG
  • Patent number: 11330257
    Abstract: The present application relates to extended application of combined intra-inter prediction. A method for processing video includes: storing a combined inter-intra prediction (CIIP) flag and/or intra mode of the CIIP mode with motion information in a history-based motion vector prediction (HMVP) table; and performing, at least based on the HMVP table, a conversion between a current block in a video data and a bitstream representation of the current block.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: May 10, 2022
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Hongbin Liu, Li Zhang, Kai Zhang, Jizheng Xu, Yue Wang, Na Zhang
  • Patent number: 11325229
    Abstract: An assembly of a wrench and a socket. The wrench has a penetrating driving hole, which has a retaining ring mounted therein. The socket, having a front end and a tail end, comprises a socketing portion axially extended between the front end and the tail end thereof for driving a fastening element. The socket comprises a retaining portion formed on the periphery thereof. The retaining portion has a retaining groove arranged at retaining corners radially indented for matching the retaining ring. The retaining groove is positioned between the front end and the tail end. The retaining portion further has a buffer groove formed between the retaining groove and the front end, so as to allow the buffer groove to successively provide a buffer or damping effect with the retaining ring when the retaining groove is decoupled from the retaining ring. Accordingly, the user is allowed to control his/her force more easily and improves the operational safety for the process of pulling out of the socket.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: May 10, 2022
    Inventor: Kai Zhang
  • Patent number: 11329075
    Abstract: An array substrate, its fabricating method, a display panel and a display device are disclosed. The method includes forming an active layer on a substrate, forming a gate layer on a side of the active layer facing or away from the substrate; forming an interlayer dielectric layer on a side of the active layer away from the substrate, which includes a first, second, third and fourth film stacked in this order in a direction away from the substrate; forming a via hole extending from the interlayer dielectric layer to the active layer; forming a source and drain layer on a side of the interlayer dielectric layer away from the substrate, and in a region not covered by the source and drain layer, removing the fourth film in the interlayer dielectric layer at a same time as forming the source and drain layer.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: May 10, 2022
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventors: Lulu Ye, Lei Yao, Kai Zhang, Dawei Shi, Nana Gao, Panpan Zhang
  • Patent number: 11330289
    Abstract: A method for video processing is provided. The method includes determining that a conversion between a current video block of a video and a coded representation of the current video block is based on a non-affine inter AMVR mode; and performing the conversion based on the determining, wherein the coded representation of the current video block is based on a context based coding, and wherein a context used for coding the current video block is modeled without using an affine AMVR mode information of a neighboring block during the conversion.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: May 10, 2022
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Hongbin Liu, Li Zhang, Kai Zhang, Yue Wang
  • Patent number: 11330288
    Abstract: Embodiments of the present disclosure relates to constraints for usage of updated motion information. A method for video processing is provided, including: determining original motion information associated with a current block; generating updated motion information based on specific prediction mode; and performing, based on the updated motion information, a conversion between the current block and a bitstream representation of a video data including the current block, wherein the specific prediction mode includes one or more of bi-directional optical flow (BIO) refinement, a decoder-side motion vector refinement (DMVR), frame-rate up conversion (FRUC) techniques or a template matching technique.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: May 10, 2022
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Hongbin Liu, Li Zhang, Kai Zhang, Yue Wang
  • Publication number: 20220141461
    Abstract: A method of video processing includes determining, for a conversion between a block that is in a video picture of a video and a bitstream representation of the video, a manner of padding a first set of samples located across boundaries of multiple video regions of the video picture for a current sample in an adaptive loop filter process. The method also includes performing the conversion according to the determining.
    Type: Application
    Filed: January 7, 2022
    Publication date: May 5, 2022
    Inventors: Li ZHANG, Kai ZHANG, Hongbin LIU, Yue WANG
  • Patent number: 11323725
    Abstract: Devices, systems and methods for sub-block based prediction are described. In a representative aspect, a method for video encoding includes partitioning, based on a first rule, a luma component of a block of video data into a first set of sub-blocks. The method also includes partitioning, based on a second rule, a first chroma component of the block of video data into a second set of sub-blocks. The first and the second set of sub-blocks include different numbers of sub-blocks. The method also includes performing a subsequent motion prediction based on the first and the second set of sub-blocks.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: May 3, 2022
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11323697
    Abstract: A method of video processing is provided to include: maintaining, prior to a conversion between a current video block of a video region and a coded representation of the video, at least one history-based motion vector prediction (HMVP) table, wherein the HMVP table includes one or more entries corresponding to motion information of one or more previously processed blocks; and performing the conversion using the at least one HMVP table; and wherein the motion information of each entry is configured to include interpolation filter information for the one or more previously processed blocks, wherein the interpolation filter information indicates interpolation filters used for interpolating prediction blocks of the one or more previously processed blocks.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: May 3, 2022
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Hongbin Liu, Li Zhang, Kai Zhang, Jizheng Xu, Yue Wang
  • Patent number: 11323738
    Abstract: Devices, systems and methods for coding video using one or more tables to store motion information and processing subsequent blocks are described. In one aspect, a video coding method is provided to include deriving motion information for a first video block, wherein one or more candidates of one or more tables are selectively checked during a motion candidate list construction process which is used to derive the motion information for the first video block, wherein each table of the one or more tables includes motion candidates derived from previously coded video blocks that are coded prior to the first video block; and coding, based on the motion information, the first video block.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: May 3, 2022
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11323741
    Abstract: A video processing method is provided to include determining, for a current video block of a video, a final prediction block for the current video block by refining one or more initial predictions for the current video block using an optical flow calculation based on a gradient of initial prediction samples according to a precision rule; and performing a conversion between the current video block and a coded representation using the final prediction block, wherein the optical flow calculation includes a prediction refinement with optical flow (PROF) procedure or a bi-directional optical flow (BDOF) procedure, wherein the precision rule specifies to use a same precision for representing the gradient for both the PROF procedure and the BDOF procedure.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: May 3, 2022
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11323719
    Abstract: Devices, systems and methods for digital video coding, which includes matrix-based intra prediction methods for video coding, are described. In a representative aspect, a method for video processing includes performing a first determination that a luma video block of a video is coded using a matrix based intra prediction (MIP) mode in which a prediction block of the luma video block is determined by performing, on previously coded samples of the video, a boundary downsampling operation, followed by a matrix vector multiplication operation, and selectively followed by an upsampling operation, performing, based on the first determination, a second determination about a chroma intra mode to be used for a chroma video block associated with the luma video block, and performing, based on the second determination, a conversion between the chroma video block and a bitstream representation of the chroma video block.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: May 3, 2022
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Zhipin Deng, Kai Zhang, Li Zhang, Hongbin Liu, Jizheng Xu
  • Patent number: 11323698
    Abstract: A video processing method includes determining, for a conversion between a current video block of a video including multiple video blocks and a coded representation of the video, and from types of reference pictures used for the conversion, applicability of a coding tool to the current video block and performing the conversion based on the determining. The method may be performed by a video decoder or a video encoder or a video transcoder.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: May 3, 2022
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Na Zhang, Hongbin Liu, Li Zhang, Kai Zhang, Yue Wang
  • Patent number: 11323336
    Abstract: This application discloses a network slice management method and a device that is designed to improve network slice deployment efficiency. In the network slice management method, after obtaining indication information of a network slice template and performance requirement information of a target network slice, a first network management device may determine deployment information of the target network slice based on the two pieces of information, and may manage the target network slice based on the deployment information of the target network slice, without manual involvement. Therefore, network slice deployment efficiency can be improved.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: May 3, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ruiyue Xu, Kai Zhang, Yan Li
  • Patent number: 11323712
    Abstract: Provided are systems, methods, and computer-readable medium for encoding and decoding video data. In various examples, a coding device can include multiple luma QP and chroma QP relationship tables. In performing quantization or inverse quantization one video data being encoded or decoded, respectively, the coding device can select a table. The table can be selected based on, for example, a slice type, a prediction mode, and/or a luminance value, among other factors. The coding device can then use the luma QP value to look up a chroma QP value from the table. The luma QP and chroma QP values can then be used in quantization or inverse quantization.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: May 3, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Wei-Jung Chien, Kai Zhang, Yi-Wen Chen, Marta Karczewicz
  • Patent number: 11322064
    Abstract: A signal line capacitance compensation circuit and a display panel are provided, a signal line capacitance compensation circuit includes: a plurality of signal lines; at least one control line, a compensation capacitor being provided between the control line and at least one of the plurality of signal lines; and a signal source configured to send a charging signal to one or more control lines of the at least one control line, the charging signal being used to charge the compensation capacitor between the one or more control lines receiving the charging signal and the at least one signal line.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: May 3, 2022
    Assignees: CHONGQING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shicheng Sun, Jonguk Kwak, Dawei Shi, Weixin Meng, Kai Zhang, Wei Zhang, Shuang Hu
  • Patent number: 11323694
    Abstract: Devices, systems and methods for encoding and decoding digital video are described. In a representative aspect, a method for video processing includes maintaining one or more tables of intra prediction mode candidates based on one or more previous video blocks of a video and performing a conversion between a current video block of the video and a bitstream representation of the video using the one or more tables of intra prediction mode candidates.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: May 3, 2022
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • Publication number: 20220132119
    Abstract: A visual media processing method includes performing a conversion between a current video block of a visual media data and a bitstream representation of the current video block, wherein the bitstream representation is configured according to a format rule that specifies that a syntax element is selectively included or excluded in the bitstream representation indicative of a maximum number of merge candidates for a coding tool, thereby indicating whether the coding tool is enabled or disabled for the conversion, wherein the maximum number of merge candidates for the coding tool is zero or a positive number.
    Type: Application
    Filed: January 11, 2022
    Publication date: April 28, 2022
    Inventors: Li ZHANG, Kai ZHANG, Hongbin LIU, Yue WANG
  • Publication number: 20220131077
    Abstract: The present disclosure provides a mask plate, a display panel and a display device. The mask plate comprises: a transparent substrate; an opaque film layer, the opaque film layer being disposed on the transparent substrate. The opaque film layer includes a plurality of first regions and a plurality of second regions, a first sub-region in the first region and the second region are transmissive, and the remaining portion in the first region is semi-transmissive. The mask plate is used to form via holes in the planarization layer of the display panel by exposure, so that the angles between the metal electrode layers disposed in the via holes and the source/drain layers of the display panel are small and diversified, decreasing the visibility of the metal electrode layers.
    Type: Application
    Filed: August 19, 2021
    Publication date: April 28, 2022
    Inventors: Wenhui GAO, Kai ZHANG, Erlong SONG, Lingran WANG, Jianjie LIU