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).

  • Publication number: 20240073430
    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, in which 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, 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 the one or more inputs satisfy a set of conditions.
    Type: Application
    Filed: November 8, 2023
    Publication date: February 29, 2024
    Inventors: Ye-kui Wang, Zhipin Deng, Kai Zhang, Li Zhang
  • Publication number: 20240069259
    Abstract: The present invention describes photoluminescent apparatuses or colour filters (100a,100b,100c,100d) and methods (1000a,1000b) for manufacturing. A photoluminescent (PL) or quantum dot (QD) material (100) fills a pattern of trenches (40,42) formed on a surface or on opposite surfaces of an optically transparent substrate (20), being cured and sealed by an optically transparent cover (22); in another embodiment, the PL or QD material (100) are cured and sealed when two patterned optically substrates (20) are bonded together. Sealing of the PL or QD material in the trenches (40,42) preserves the optical and performance stability of these colour filters. These colour filters (100a, . . . 100d) are suitable for use in next generation UHD display screens or lighting applications.
    Type: Application
    Filed: January 13, 2022
    Publication date: February 29, 2024
    Applicant: Massachusetts Institute of Technology
    Inventors: Saurabh SRIVASTAVA, Li ZHANG, Kenneth Eng Kian LEE, Silvija GRADECAK-GARAJ
  • Publication number: 20240074063
    Abstract: A photosensitive assembly includes a circuit board and a photosensitive chip disposed on the circuit board. A first direction is defined as a direction from the circuit board to the photosensitive chip. The circuit board is convex in the first direction or an opposite direction of the first direction. The photosensitive chip is in the first direction or the opposite direction of the first direction. A bending direction of the circuit board is the same as a bending direction of the photosensitive chip.
    Type: Application
    Filed: November 22, 2022
    Publication date: February 29, 2024
    Inventors: WEN-CHING LAI, WAN-LI ZHANG, ZHI-WEI LI, YA-JIE NIU
  • Publication number: 20240073426
    Abstract: An example method of video processing includes determining, for a conversion between a block of a chroma component of a video and a bitstream representation of the video, whether or how to apply a filtering process to an edge of the block based on a first quantization information for a first video region including samples on one side of the edge and/or a second quantization information for a second video region including samples on the other side of the edge according to a rule that is based on a coding mode applicable to the block for coding the samples on the one side or the samples on the other side of the edge. The rule specifies that multiple QP offsets at different video unit levels are used to determine the first quantization information or the second quantization information. The method also includes performing the conversion based on the determining.
    Type: Application
    Filed: October 31, 2023
    Publication date: February 29, 2024
    Inventors: Weijia Zhu, Li Zhang, Jizheng Xu
  • Publication number: 20240073456
    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. The rule specifies whether a transform skip residual coding operation is enabled for the video unit. 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: Application
    Filed: October 31, 2023
    Publication date: February 29, 2024
    Inventors: Jizheng Xu, Li Zhang, Ye-kui Wang, Kai Zhang, Zhipin Deng
  • Publication number: 20240073417
    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: Application
    Filed: November 2, 2023
    Publication date: February 29, 2024
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Jizheng Xu, Yue Wang
  • Publication number: 20240073429
    Abstract: A method for video processing includes determining, for a conversion between a current video block of a video and a coded representation of the video, whether an intra block copy (IBC) mode in which a prediction block for the current video block is calculated based on a block vector in a picture that includes current video block is enabled based on a rule on a block dimension; and performing the conversion based on the determining.
    Type: Application
    Filed: November 7, 2023
    Publication date: February 29, 2024
    Inventors: Hongbin Liu, Li Zhang, Kai Zhang, Jizheng Xu, Yue Wang
  • Publication number: 20240073419
    Abstract: A method of video processing, including performing a conversion between a video unit of a video and a bitstream of the video according to a rule, wherein the rule specifies that whether a cross-component adaptive loop filter (CC-ALF) mode and an adaptive loop filter (ALF) mode are enabled for coding the video unit are indicated in the bitstream in a mutually independent manner.
    Type: Application
    Filed: October 31, 2023
    Publication date: February 29, 2024
    Inventors: Weijia Zhu, Li Zhang, Jizheng Xu, Kai Zhang, Ye-kui Wang
  • Publication number: 20240073457
    Abstract: Methods, apparatus and systems for processing video are described. One example method includes performing a conversion between a video comprising a video unit and a bitstream of the video, wherein the bitstream conforms to a format rule, and wherein the format rule specifies that a first syntax element indicating whether an in-loop filtering operation is performed across tile boundaries is selectively included in the bitstream responsive to whether or how the video unit is partitioned into tiles.
    Type: Application
    Filed: November 1, 2023
    Publication date: February 29, 2024
    Inventors: Kai Zhang, Li Zhang, Yang Wang, Ye-kui Wang, Zhipin Deng, Jizheng Xu, Hongbin Liu
  • Patent number: 11917169
    Abstract: Video processing methods, systems and apparatus are described. One example method includes performing a conversion between a video block of a video and a bitstream of the video using a palette mode in which samples of the video block are represented using a palette of representative color values. A size of the palette of the video block is determined based on whether a local dual tree is applied for the conversion.
    Type: Grant
    Filed: August 5, 2022
    Date of Patent: February 27, 2024
    Assignees: BEIJING BYTEDANCE NEWTORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Jizheng Xu, Li Zhang, Ye-kui Wang, Kai Zhang, Weijia Zhu, Yue Wang, Yang Wang, Hongbin Liu
  • Patent number: 11917183
    Abstract: A method includes performing a conversion, according to a rule, between a current slice of a current picture of a video and a bitstream of the video, wherein the rule specifies that a first syntax element of a picture parameter set (PPS) and a second syntax element of the PPS control whether a third syntax element is included in the bitstream, and wherein the first syntax element indicates whether a weighted prediction is enabled for bi-directional slices of coded pictures referring to the PPS, the second syntax element indicates whether information related to the weighted prediction is present in picture headers or slice headers of coded pictures referring to the PPS, and the third syntax element indicates a number of weights associated with a reference picture list 1 of the current slice.
    Type: Grant
    Filed: August 17, 2022
    Date of Patent: February 27, 2024
    Assignee: BYTEDANCE INC.
    Inventors: Ye-kui Wang, Li Zhang
  • Patent number: 11917197
    Abstract: Extensions of intra coding modes in video coding are described. One example is a method for video processing, comprising: generating, for a conversion between a current video block of a video and a bitstream representation of a video, a set of extended intra prediction modes (IPMs) associated with the current video block by revising a set of existing IPMs to include at least one new coding method, wherein the new coding method is different from coding methods in the existing IPMs and is to be treated as IPM; and performing the conversion based on the set of extended IPMs.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: February 27, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Weijia Zhu, Li Zhang, Jizheng Xu, Kai Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11917211
    Abstract: Techniques for video processing, including video coding, video decoding and video transcoding are described. One example method includes performing a conversion between a video including a video picture including a video tile including one or more slices and a bitstream of the video according to a rule. The rule specifies that a second slice in a tile that includes a first slice in a picture has a height that is represented in a unit of coding tree units. The first slice has a first slice index, and the second slice has a second slice index that is determined based on the first slice index and a number of explicitly provided slice heights in the video tile. The height of the second slice is determined based on the first slice index and the second slice index.
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: February 27, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Ye-Kui Wang, Zhipin Deng, Kui Fan, Jizheng Xu, Hongbin Liu
  • Patent number: 11917196
    Abstract: A video processing method includes performing a conversion between a video comprising multiple video units and a coded representation of the video in which the multiple video units are processed in an order, where, when a video unit of the multiple video units is processed in the conversion, one or more frequence tables and/or one or more sorted intra prediction mode (IPM) tables are reset or initialized, where the one or more frequence tables include information about frequence of one or more intra prediction modes used for processing previous video units in the multiple video units, where the previous video units precede in time the video unit, where the frequence indicates an occurrence of the one or more intra prediction modes used for the conversion, and where the one or more sorted IPM tables indicate the one or more intra prediction modes used in the processing.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: February 27, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC., Bytedance (HK) Limited
    Inventors: Junru Li, Meng Wang, Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang, Shiqi Wang
  • Patent number: 11917208
    Abstract: Several techniques for video encoding and video decoding are described. One example method includes performing a conversion between a subpicture in a video picture of a video and a bitstream of the video according to a rule. The rule specifies that multiple syntax elements are used to specify usage of a reference picture resampling tool.
    Type: Grant
    Filed: September 21, 2022
    Date of Patent: February 27, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Ye-kui Wang, Li Zhang, Kai Zhang, Zhipin Deng
  • Publication number: 20240060053
    Abstract: Provided is a method for large-scale production of lentivirus by using GMP-level serum-free suspension cells. Said method comprises the following steps: (a) providing a seed solution of packaged cells; (b) inoculating the seed solution in a first culture solution; (c) carrying out subculture of the packaged cells; (d) starting a liquid change operation when a liquid change trigger condition is met; (e) repeating steps (c) and (d) 1, 2 or 3 times; (f) starting a transfection operation when a transfection trigger condition is met; (g) optionally performing liquid change after transfection; (h) cultivating the transfected packaged cells; (i) starting harvesting and liquid change operations when a liquid change trigger condition is met; (j) repeating steps (h) and (i) 1, 2 or 3 times; (k) combining each of the recovered liquids; and (l) performing a purifying treatment. The culture solution used in each step is a serum-free cell culture solution.
    Type: Application
    Filed: October 31, 2023
    Publication date: February 22, 2024
    Applicant: Shanghai Cellular Biopharmaceutical Group Ltd.
    Inventors: Yi HONG, Ting YAN, Jiangguo YING, Haojie ZHANG, Luyi ZHANG, Li ZHANG
  • Publication number: 20240064315
    Abstract: Methods, systems, and devices for implementing an adaptive color transform (ACT) during image/video encoding and decoding, including: determining, for a conversion between a video including a block and a bitstream of the video, that a size of the block is greater than a maximum allowed size for an ACT mode, and performing, based on the determining, the conversion. In response to the size of the block being greater than the maximum allowed size for the ACT mode, the block is partitioned into multiple sub-blocks. Each of the multiple sub-blocks share a same prediction mode, and the ACT mode is enabled at a sub-block level.
    Type: Application
    Filed: September 21, 2023
    Publication date: February 22, 2024
    Inventors: Weijia Zhu, Jizheng Xu, Li Zhang, Kai Zhang, Yue Wang
  • Publication number: 20240060041
    Abstract: Provided are methods for expanding tumor-infiltrating lymphocytes (TILs), which include co-culturing an initial cell population containing TILs with first feeder cells to obtain a first expanded cell population; and then co-culturing the first expanded cell population with second feeder cells to obtain an expanded TIL population. The methods can quickly produce a large number of TILs from a small tumor sample.
    Type: Application
    Filed: December 29, 2021
    Publication date: February 22, 2024
    Inventors: Jia LI, Jiyan HOU, Zizhen GONG, Yijie QU, Shichao QIN, Shenchen WANG, Wangqin SHU, Junfeng WU, Fei WANG, Li ZHANG
  • Publication number: 20240064288
    Abstract: A method of video processing includes determining, based on a video characteristic of a first video block, an enabling or disabling of a pruning process for a table updating process; updating one or multiple tables, based on the determination and motion information of the first video block, the one or multiple motion tables being History-based Motion Vector Prediction (HMVP) tables; and performing a conversion between a subsequent video block of the video and bitstream representation of the subsequent video block based on the updated tables.
    Type: Application
    Filed: October 27, 2023
    Publication date: February 22, 2024
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Jizheng Xu, Yue Wang
  • Publication number: 20240062938
    Abstract: A magnetic manipulation system and method for moving and navigating a magnetic device in a body are provided. The system includes a robotic parallel mechanism having at least three electromagnets and at least three electromagnetic coils coupled to the at least three electromagnets, respectively. The electromagnetic coils are actuated to keep the electromagnets in static conditions or move the electromagnets along a desired trajectory, a current control unit supplying currents to the electromagnetic coils which have soft iron cores. The currents supplied by the control unit are configured to generate dynamic magnetic field in the soft iron core's linear region. The current control unit and the robotic parallel mechanism are configured to generate desired dynamic magnetic fields in desired positions within a workspace to control a magnetic device, and a three-dimensional position sensor is configured for performing a close loop control of the robotic parallel mechanism.
    Type: Application
    Filed: October 6, 2023
    Publication date: February 22, 2024
    Inventors: Li ZHANG, Lidong YANG, Moqiu ZHANG