Patents by Inventor Xiang-An Li

Xiang-An Li 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: 11973937
    Abstract: A method of video encoding in an encoder is described. A triangle merge list of a current coding block in a set of coding blocks is constructed based on a number of triangular merge mode candidates. The number of triangular merge mode candidates in the triangle merge list is less than or equal to a maximum number of triangular merge mode candidates. A first syntax element that indicates the maximum number of triangular merge mode candidates is generated. Further, a coded video bit stream that includes the first syntax element is generated.
    Type: Grant
    Filed: July 27, 2022
    Date of Patent: April 30, 2024
    Assignee: TENCENT AMERICA LLC
    Inventors: Xiang Li, Guichun Li, Xiaozhong Xu, Shan Liu
  • Publication number: 20240137534
    Abstract: In a method of video encoding, whether an adaptive color transform (ACT) is to be applied to a current block is determined. The current block includes color components, the color components including a luma component, a first chroma component, and a second chroma component. Based on the ACT being determined to be applied to the current block, a color space conversion is applied on the current block based on color space conversion equations to generate modified color components of the current block. The current block is encoded based on the modified color components of the current block.
    Type: Application
    Filed: January 2, 2024
    Publication date: April 25, 2024
    Applicant: TENCENT AMERICA LLC
    Inventors: Ling LI, Xin ZHAO, Xiang Li, Shan LIU
  • Publication number: 20240137576
    Abstract: A method for video encoding includes determining a filter shape of a cross-component filter applied to a chroma coding block (CB), generating a first intermediate CB by applying a loop filter to the chroma CB, and generating a second intermediate CB by applying, to a corresponding luma CB, the cross-component filter applied to the chroma CB and having the determined filter shape. The method further includes determining a filtered chroma CB based on the first intermediate CB and the second intermediate CB by combining the loop filtered chroma CB with the cross-component filtered luma CB, and generating coded information of the chroma CB in a coded video bitstream. Determining the filter shape includes determining the filter shape of the cross-component filter based on the number of the filter coefficients and based on at least one of (i) the chroma subsampling format or (ii) the chroma sample type.
    Type: Application
    Filed: December 26, 2023
    Publication date: April 25, 2024
    Applicant: TENCENT AMERICA LLC
    Inventors: Xiang LI, Xin ZHAO, Yixin DU, Liang ZHAO, Shan LIU
  • Patent number: 11964700
    Abstract: Provided is a lightweight aluminum alloy carriage, which relates to the field of lightweight logistics equipment manufacturing application. The lightweight aluminum alloy carriage comprises a bottom plate assembly, and the bottom plate assembly comprises a front end part and a rear end part which are arranged front and back on an axis; the front end part comprises a transversely arranged aluminum alloy profile bottom plate, and the extrusion direction of the transversely arranged aluminum alloy profile bottom plate is perpendicular to the axis of the bottom plate assembly; and the rear end part comprises aluminum alloy square tube cross beams and a longitudinally arranged aluminum alloy profile bottom plate, and the aluminum alloy square tube cross beams are perpendicular to the axis of the bottom plate assembly.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: April 23, 2024
    Assignee: Fujian Minlu Lightweight Automobile Manufacturing Co., Ltd.
    Inventors: Kaizheng Xiao, Xiang Li, Donggui Zhang, Yongda Fan
  • Patent number: 11964249
    Abstract: The disclosure discloses a milk protein concentrate-based microencapsulation wall material and microcapsules, and belongs to the technical field of microcapsule preparation. In the disclosure, liquid or solid microcapsules are prepared by performing cation exchange treatment on milk protein concentrates, and then using the treated milk protein concentrates as a wall material. The prepared microcapsules have good physical and chemical stability during storage, and are suitable for protecting active functional factors and to be applied in the fields of food, medicine, health care products, cosmetics, daily chemicals and the like.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: April 23, 2024
    Assignee: JIANGNAN UNIVERSITY
    Inventors: Peng Zhou, Jinhua Hu, Fengchen Zhuang, Xiang Li, Yuejie Jin, Chaoyue Zhang, Minjun Cheng, Yongxue Liang
  • Patent number: 11968366
    Abstract: A video encoding method and apparatus is provided. The method includes determining a chroma format of a video frame, determining, for a currently decoded first quantization matrix (QM), a size of the first QM according to the determined chroma format and a size of a luma transform block (TB) when the first QM is a chroma QM, and decoding the first QM when the size of the first QM is greater than zero. Thus, a size of a chroma QM is flexibly determined according to a chroma format and a size of a luma TB, rather than a fixed size predefined according to an identifier of the QM, thereby improving flexibility during encoding and decoding of the chroma QM. Apparatus and non-transitory computer-readable storage medium counterpart embodiments are also provided.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: April 23, 2024
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Hongbin Zhang, Xiang Li, Guichun Li, Shan Liu
  • Patent number: 11968365
    Abstract: Aspects of the disclosure provide method and apparatus for video coding. In some examples, an apparatus includes receiving circuitry and processing circuitry. The processing circuitry decodes, from a coded video bitstream, a syntax element for an adjusted version of an initial quantization parameter (QP) value at a picture level for a picture. The adjusted version is in a range with an upper boundary that is changed with a maximum QP value. Then, the processing circuitry determines the initial QP value of a segment (such as a slice, a tile, a group of tiles and the like) in the picture based on the syntax element and determines a QP value for a block in the segment according to the initial QP value of the segment and adjustments associated with the block. Then, the processing circuitry performs an inverse quantization on quantized data of the block according to the determined QP value.
    Type: Grant
    Filed: April 7, 2023
    Date of Patent: April 23, 2024
    Assignee: TENCENT AMERICA LLC
    Inventors: Xiang Li, Xiaozhong Xu, Shan Liu
  • Patent number: 11968871
    Abstract: The disclosure provides a display substrate, a manufacturing method thereof and a display device. The display substrate has a plurality of subpixel regions. The display substrate includes a base substrate and a pixel definition layer on the base substrate. The pixel definition layer defines a plurality of subpixel openings and each of the subpixel openings occupies one subpixel region. The display substrate further includes a functional medium layer on a side of the pixel definition layer away from the base substrate. The functional medium layer includes a first portion covering side surfaces of the subpixel opening and a second portion covering a top surface of the pixel definition layer. In the same subpixel region, surface energy of the first portion is greater than surface energy of the second portion.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: April 23, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yong Yu, Yang Yue, Haitao Huang, Xiang Li, Shi Shu, Chuanxiang Xu
  • Publication number: 20240130253
    Abstract: An example phase change memory, as well as an electronic device comprising an example phase change memory, include a plurality of phase change memory cells. Each of the plurality of phase change memory cells includes a first electrode, a phase change body, and a second electrode, which are sequentially arranged in a first direction. The phase change body has a first end face facing the first electrode and a second end face facing the second electrode. The phase change body further includes a convergence portion, and the convergence portion is located between the first end face and the second end face, where a sectional area of the convergence portion in a direction perpendicular to the first direction is relatively smaller than an area of the first end face and an area of the second end face. A preparation method for a phase change memory is also provided.
    Type: Application
    Filed: December 14, 2023
    Publication date: April 18, 2024
    Inventors: Ping MA, Xiang LI
  • Publication number: 20240124853
    Abstract: Provided are transaminase mutants and uses thereof. The transaminase mutant is obtained by one or more amino acid mutations occurring in SEQ ID NO: 2 or is a mutant with a conserved amino acid mutation obtained by taking the sequence SEQ ID NO: 1 of a wild-type CvTA transaminase as a reference. Compared with wild-type transaminases, the catalytic activity of the mutant is improved to different degrees, so that the production efficiency of chiral amine compound synthesis may be improved.
    Type: Application
    Filed: July 6, 2021
    Publication date: April 18, 2024
    Inventors: Hao Hong, Gage James, Yi Xiao, Na Zhang, Xuecheng Jiao, Yulei Ma, Huiyan Mou, Zujian Wang, Kaihua Sun, Xiang Li, Tong Zhao, Shan Cao
  • Publication number: 20240121444
    Abstract: A method and apparatus for encoding or decoding a video sequence includes applying a Cross-Component Linear Model (CCLM) to a video sequence, and applying an interpolation filter in the Cross-Component Linear Model (CCLM), wherein the interpolation filter is dependent upon a YUV format of the video sequence.
    Type: Application
    Filed: December 1, 2023
    Publication date: April 11, 2024
    Applicant: TENCENT AMERICA LLC
    Inventors: Liang ZHAO, Xin Zhao, Xiang Li, Shan Liu
  • Patent number: 11952299
    Abstract: The disclosure relates to the technical field of energy saving and consumption reduction, and in particular, to a gas-liquid recycling device. A gas-liquid recycling device and a method of using same provided by the disclosure includes a gas-collection hood, a gas delivery pipe and a liquid delivery pipe. A gas inlet port of the gas delivery pipe is connected to the gas collection hood, a gas outlet port of the gas delivery pipe is inserted into a liquid outlet port of the liquid delivery pipe, and a liquid inlet port is located at an end of the liquid delivery pipe opposite to the liquid outlet port.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: April 9, 2024
    Assignee: SUZHOU UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Xiang Li, Yan Yuan, Yong Huang
  • Patent number: 11956456
    Abstract: A method of video encoding includes receiving a merge sharing region including a plurality of coding blocks, constructing a shared merge candidate list for the merge sharing region, and encoding a current inter coded coding block in the merge sharing region based on the shared merge candidate list. The method also includes determining whether to update a history-based motion vector prediction (HMVP) table with motion information of the current inter coded coding block based on whether the current inter coded coding block is inter coded with a merge/skip mode. The method further includes updating the HMVP table with the motion information of the current inter coded coding block when the HMVP table is determined to be updated with the motion information of the current inter coded coding block.
    Type: Grant
    Filed: June 27, 2023
    Date of Patent: April 9, 2024
    Assignee: TENCENT AMERICA LLC
    Inventors: Guichun Li, Xiaozhong Xu, Xiang Li, Shan Liu
  • Publication number: 20240114173
    Abstract: A method, computer program, and computer system for encoding or decoding video data, and indicating, with a syntax element, types of slices for all slices of a coded picture, the syntax element being coded using an unsigned integer.
    Type: Application
    Filed: November 17, 2023
    Publication date: April 4, 2024
    Applicant: TENCENT AMERICA LLC
    Inventors: Ling LI, Xiaozhong XU, Byeongdoo CHOI, Xiang LI, Stephan WENGER, Shan LIU
  • Publication number: 20240114808
    Abstract: Examples of phase-change arrays, phase-change memories, and electronic devices are described. In one example, a phase-change storage array includes a number of phase-change storage units, each of which includes a phase-change thin film. The phase-change thin film includes a phase-change material layer and a heterojunction layer, and the phase-change material layer is in contact with the heterojunction layer. The phase-change material layer is formed by using a phase-change material, and the heterojunction layer is formed by using a heterojunction material. A lattice mismatch degree between the heterojunction material and the phase-change material is less than or equal to 20%, a contact crystal surface of the heterojunction material and a contact crystal surface of the phase-change material have a same lattice angle, and a melting point of the heterojunction material is greater than a melting point of the phase-change material.
    Type: Application
    Filed: December 8, 2023
    Publication date: April 4, 2024
    Inventors: Xin CHEN, Xiang LI
  • Publication number: 20240113419
    Abstract: The present application is directed to a mounting system for a base station antenna. The system includes a passive antenna and an active antenna module and a mounting kit. The mounting kit includes an upper radio mounting bracket assembly and a lower radio mounting bracket assembly, and is configured to mount and secure an upper portion of the passive antenna to a mounting structure and mount and secure the active antenna module to the mounting structure behind the passive antenna. The system further includes a middle antenna mounting bracket assembly configured to pivotably mount a middle portion of the passive antenna to the mounting structure and a lower antenna mounting bracket assembly configured to slidably and/or pivotably mount a lower portion of the passive antenna to the mounting structure. The mounting system is configured to adjust the base station antenna downwardly or upwardly to a desired angle of tilt. Mounting kits and methods of operating same are also described herein.
    Type: Application
    Filed: September 27, 2023
    Publication date: April 4, 2024
    Inventors: Xiang Li, YongJie Xu, Ligang Wu, XiaoHua Hou, Qiyun Gu
  • Patent number: 11947211
    Abstract: A display panel includes: a liquid crystal cell; an optical layer configured to transmit part of light incident onto the optical layer whose polarization direction is parallel to a transmission axis of the optical layer, and reflect a remaining part of the light incident onto the optical layer; a first polarization structure configured to transmit part of light incident onto the first polarization structure whose polarization direction is parallel to a transmission axis of the first polarization structure, and absorb a remaining part of the light incident onto the first polarization structure; and a second polarization structure configured to transmit part of light incident onto the second polarization structure whose polarization direction is parallel to a transmission axis of the second polarization structure, and absorb a remaining part of the light incident onto the second polarization structure.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: April 2, 2024
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jing Wang, Yangyang Cai, Guojian Qu, Guangyun Tong, Fan Yang, Chengwei Wang, Zhanchang Bu, Bochang Wang, Yu Zhang, Hetao Wang, Xiang Li
  • Patent number: 11949902
    Abstract: A method for video decoding in a decoder is provided. Coding information of a current block (CB) from a coded video bitstream is decoded. The coding information includes weighted prediction information that indicates a weighted prediction for the CB. A determination is made as to whether to apply a prediction refinement with optical flow (PROF) on the CB based on the weighted prediction information. The CB is reconstructed based on the weighted prediction and whether the PROF is determined to be applied on the CB.
    Type: Grant
    Filed: March 30, 2022
    Date of Patent: April 2, 2024
    Assignee: TENCENT AMERICA LLC
    Inventors: Guichun Li, Xiang Li, Xiaozhong Xu, Shan Liu
  • Patent number: 11949849
    Abstract: A method for video decoding is provided. For a current block, whether an angular intra prediction mode for the current block is a wide angle mode that is in a direction outside of a range of directions that spans a bottom left diagonal direction and a top right diagonal direction of the current block is determined. Based on the angular intra prediction mode being determined as the wide angle mode, an intra smooth filter is enabled, the enabled intra smooth filter is applied to blocks neighboring the current block to generate filtered blocks, and intra prediction is performed based on the filtered blocks to decode the current block.
    Type: Grant
    Filed: November 28, 2022
    Date of Patent: April 2, 2024
    Assignee: TENCENT AMERICA LLC
    Inventors: Liang Zhao, Xin Zhao, Xiang Li, Shan Liu
  • Patent number: 11949863
    Abstract: In response to a current block being partitioned into a first partition and a second partition based on a geometric partition mode, a first prediction type for the first partition and a second prediction type for the second partition are determined based on a flag associated with one of intra prediction, inter prediction, and intra block copy (IBC). Each of the first and second prediction types is one of the intra prediction, the inter prediction, and the IBC. Based on the first prediction type, a first prediction mode for the first partition of the current block is determined. Based on the second prediction type, a second prediction mode for the second partition of the current block is determined. The first partition of the current block is reconstructed based on the first prediction mode and the second partition of the current block is reconstructed based on the second prediction mode.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: April 2, 2024
    Assignee: TENCENT AMERICA LLC
    Inventors: Lien-Fei Chen, Xiang Li, Ling Li, Shan Liu