Patents by Inventor Lien-An Li

Lien-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: 12238294
    Abstract: Aspects of the disclosure provide a method and an apparatus including processing circuitry that determines, based on a syntax element in a coded video bitstream, that a current block including a plurality of subblocks is coded in a subblock-based temporal motion vector prediction (SbTMVP) mode. Motion vector offset (MVO) information indicating an MVO is received. The MVO indicates a motion offset of a displacement vector (DV) used to adjust a location of a collocated block in a collocated reference picture. An updated DV of the current block is determined based on the DV and the MVO. SbTMVP information of a respective subblock in the plurality of subblocks is derived based on motion information of a corresponding subblock in the collocated block indicated by the updated DV. The plurality of subblocks in the SbTMVP mode is reconstructed based on the SbTMVP information of the subblock in the plurality of subblocks.
    Type: Grant
    Filed: November 9, 2022
    Date of Patent: February 25, 2025
    Assignee: Tencent America LLC
    Inventors: Lien-Fei Chen, Xiang Li, Guichun Li, Shan Liu
  • Patent number: 12237419
    Abstract: A method includes forming a first source/drain region and a second source/drain region in a semiconductor fin; depositing a first dielectric layer over the first source/drain region and the second source/drain region; etching an opening through the first dielectric layer, wherein etching the opening comprises etching the first dielectric layer; forming first sidewall spacers on sidewalls of the opening; and forming a gate stack in the opening, wherein the gate stack is disposed between the first sidewall spacers.
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: February 25, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yu-Lien Huang, Tze-Liang Lee, Jr-Hung Li, Chi-Hao Chang
  • Publication number: 20250063191
    Abstract: In a method of video encoding, a corresponding block of a current block in a current picture is determined based on an offset vector that indicates an offset between the current block and the corresponding block. The current block includes a plurality of subblocks to be encoded in a subblock-based frame-rate up conversion (FRUC) mode. A temporal motion vector predictor (TMVP) of a first subblock in the corresponding block is determined based on a subblock in a forward reference picture of the current picture and a subblock in a backward reference picture of the current picture. The subblocks in the forward reference picture and the backward reference picture are matched using the subblock-based FRUC mode. Based on the TMVP, a TMVP of a subblock is determined in the plurality of subblocks in the current block.
    Type: Application
    Filed: October 31, 2024
    Publication date: February 20, 2025
    Applicant: Tencent America LLC
    Inventors: Lien-Fei CHEN, Guichun LI, Xiang LI, Shan LIU
  • Publication number: 20250063157
    Abstract: In a method of video decoding, coded information of a current block in a current picture of a video is received from a coded video bitstream. The coded information indicates that the current block is an intra block copy (IBC) block. The current block is divided into a plurality of partitions based on a geometric partition mode (GPM). An intra prediction mode for a subblock is derived from one of the plurality of partitions as an intra mode of a pixel positioned at a location of a reference subblock in a reference block referenced by a block vector of the IBC block. The intra prediction mode for the subblock is stored. A neighboring block of the current block is determined as an IBC block. A most probable mode (MPM) list for the neighboring block is constructed using the stored intra prediction mode for the subblock of the current block.
    Type: Application
    Filed: November 4, 2024
    Publication date: February 20, 2025
    Applicant: Tencent America LLC
    Inventors: Lien-Fei CHEN, Xiang LI, Ling LI, Shan LIU
  • Patent number: 12231622
    Abstract: A method performed by a video decoder includes receiving a coded video bitstream including a current picture that includes at least one block. The method includes determining that the at least one block is to be predicted in a reconstruction-reordered intra block copy (RR-IBC) mode. The method includes obtaining a syntax element from the at least one block, the syntax element indicating a flip mode. The method includes determining whether reconstruction flip is applied to the at least one block. The method includes, in response to determining the reconstruction flip is applied to the at least one block, predicting a flip pattern for the at least one block based on neighboring reconstruction samples of the at least block and a corresponding reference block of the at least one block. The method further includes decoding the at least one block based on the flip mode and the predicted flip pattern.
    Type: Grant
    Filed: November 7, 2022
    Date of Patent: February 18, 2025
    Assignee: TENCENT AMERICA LLC
    Inventors: Xin Zhao, Xiaozhong Xu, Lien-Fei Chen, Guichun Li, Shan Liu
  • Patent number: 12231621
    Abstract: Processing circuitry decodes, from a bitstream carrying a video including a current picture, a signal indicative of a subblock based intra block copy (IBC) merge mode for predicting a current block in the current picture. The processing circuitry determines a predictor offset (also referred to as offset BV) associated with the current block. The predictor offset indicates a predictor block in the current picture corresponding to the current block, the predictor block includes a plurality of predictor subblocks respectively corresponding to a plurality of subblocks in the current block. The processing circuitry determines a first block vector of a first subblock according to a first predictor block vector associated with a first predictor subblock. The processing circuitry reconstructs the first subblock in the current block according to the first block vector that points to a reference block for the first subblock in the current picture.
    Type: Grant
    Filed: November 1, 2022
    Date of Patent: February 18, 2025
    Assignee: Tencent America LLC
    Inventors: Guichun Li, Xiang Li, Lien-Fei Chen, Shan Liu
  • Publication number: 20250056005
    Abstract: Aspects of the disclosure provide methods for video decoding, encoding, and processing visual media data. The method for video decoding includes decoding prediction information of a current block from a coded video bitstream. The prediction information indicates that local illumination compensation (LIC) is applied to the current block and indicates an adjustment parameter used to adjust at least one parameter of the LIC. The method for video decoding includes determining a final scaling parameter ?f of the current block based on the adjustment parameter and an initial scaling parameter ?i that is one of the at least one parameter of the LIC, determining an updated predictor of the current block based on the final scaling parameter ?f and the predictor, and reconstructing the current block based on the updated predictor.
    Type: Application
    Filed: October 31, 2024
    Publication date: February 13, 2025
    Applicant: Tencent America LLC
    Inventors: Lien-Fei CHEN, Xiang LI, Shan LIU
  • Patent number: 12225207
    Abstract: Processing circuitry receives a coded bitstream carrying at least a picture, determines that a current coding unit (CU) in the picture is coded in a subblock based inter prediction mode based on a first syntax element value in the coded bitstream, and determines that one or more first subblocks in the current CU that is coded in the subblock based inter prediction mode are coded by intra prediction. The processing circuitry reconstructs one or more second subblocks of the current CU by inter prediction based on the subblock based inter prediction mode, the one or more second subblocks do not overlap with the one or more first subblocks in the current CU. The processing circuitry reconstructs the one or more first subblocks of the current CU by the intra prediction while the current CU is coded in the subblock based inter prediction mode.
    Type: Grant
    Filed: June 8, 2023
    Date of Patent: February 11, 2025
    Assignee: TENCENT AMERICA LLC
    Inventors: Xin Zhao, Guichun Li, Lien-Fei Chen, Shan Liu
  • Patent number: 12219128
    Abstract: A feature value is determined based on at least one of (i) neighboring reconstructed chroma samples of a current chroma block and (ii) neighboring reconstructed luma samples of a luma block that is collocated with the current chroma block. Chroma samples of the current chroma block and luma samples of the luma block that is collocated with the current chroma block are grouped into a plurality of groups based on a threshold of the feature value. Each of the plurality of groups includes a respective chroma sample and a respective luma sample. A respective cross-component prediction mode is determined for each of the plurality of groups by comparing the respective chroma sample and the respective luma sample of each respective group to the determined feature value. The current chroma block is reconstructed based on the determined cross-component prediction modes of the plurality of groups.
    Type: Grant
    Filed: November 7, 2022
    Date of Patent: February 4, 2025
    Assignee: Tencent America LLC
    Inventors: Xin Zhao, Guichun Li, Lien-Fei Chen, Shan Liu
  • Publication number: 20250039388
    Abstract: In a method for video coding in a decoder, prediction information of a current block of a current picture in a coded bitstream is decoded. The prediction information indicates a geometric partitioning mode (GPM) for the current block. The current block is partitioned into two partitions in the GPM mode, and each of the partitions is associated with a respective predictor. A weighting index for a sample of the current block is determined based on a position of the sample. A weighting factor is calculated based on the weighting index of the sample according to an equation that converts the weighting index to the weighting factor. The calculation includes performing a right shift operation based at least on a sum of the weighting index and an offset value, and clipping a result of the right shift operation to be within a predefined range. The sample is reconstructed based on the weighting factor and the predictor corresponding to the sample.
    Type: Application
    Filed: October 4, 2024
    Publication date: January 30, 2025
    Applicant: TENCENT AMERICA LLC
    Inventors: Lien-Fei CHEN, Xiang LI, Guichun LI, Shan LIU
  • Publication number: 20250039443
    Abstract: A method includes receiving a coded video bitstream that includes a current picture with at least one block located at a boundary of the current picture and coded in accordance with an intra template matching (intraTMP) mode; determining boundary filtering is enabled for the at least one block based on a syntax element in the received coded video stream; filtering one or more boundary samples corresponding to the at least one block to generate one or more filtered samples; and decoding the at least one block based on the generated one or more filtered samples.
    Type: Application
    Filed: October 11, 2024
    Publication date: January 30, 2025
    Applicant: TENCENT AMERICA LLC
    Inventors: Xin Zhao, Guichun Li, Lien-Fei Chen, Shan Liu
  • Patent number: 12211924
    Abstract: A method of forming a semiconductor device includes forming a dummy gate structure across a fin protruding from a substrate, forming gate spacers on opposite sidewalls of the dummy gate structure, forming source/drain epitaxial structures on opposite sides of the dummy gate structure, forming a first interlayer dielectric (ILD) layer on the source/drain epitaxial structures and outer sidewalls of the gate spacers, replacing the dummy gate structure with a replacement gate structure, etching back the replacement gate structure to form a recess between the gate spacers, performing a first non-conformal deposition process to fill the recess with a first gate cap material, and planarizing the first gate cap material to remove a portion of the first gate cap material outside the recess.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: January 28, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Yu-Lien Huang, Tze-Liang Lee, Jr-Hung Li, Chi-Hao Chang, Bor Chiuan Hsieh
  • Patent number: 12206861
    Abstract: Aspects of the disclosure provide a method and an apparatus for video decoding. The apparatus includes processing circuitry that determines motion information of a current block. The motion information indicates one or more reference blocks of the current block. If a motion information constraint indicates that the one or more reference blocks are within picture boundaries of respective one or more reference pictures, the processing circuitry reconstructs the current block based on the one or more reference blocks. If a first motion vector (MV) points from a region in the current block to a first reference region of a first reference block that is outside a picture boundary of a first reference picture, the processing circuitry determines a first clipped MV pointing from the region to an updated first reference region by clipping the first MV where the updated first reference region is within the picture boundary.
    Type: Grant
    Filed: October 13, 2022
    Date of Patent: January 21, 2025
    Assignee: Tencent America LLC
    Inventors: Xiang Li, Lien-Fei Chen, Shan Liu
  • Publication number: 20250024066
    Abstract: Method, apparatus, and non-transitory storage medium for coding and decoding video data using temporal motion vector prediction (TMVP) is provided. The method may include receiving video bitstream comprising one or more pictures; determining that the one or more pictures are to be predicted in a regular merge mode or an adaptive motion vector prediction (AMVP) mode. A displacement vector associated with a current block in a current picture is obtained, the displacement vector being signaled in the video bitstream to identify a reference block in the current picture. A TMVP candidate list comprising the motion information is generated and a motion vector for the current block using the TMVP candidate list is derived. Then the current block is decoded using the derived motion vector for prediction in the regular merge mode or the adaptive motion vector prediction (AMVP) mode.
    Type: Application
    Filed: September 27, 2024
    Publication date: January 16, 2025
    Applicant: TENCENT AMERICA LLC
    Inventors: Xin ZHAO, Guichun LI, Lien-Fei CHEN, Shan LIU
  • Publication number: 20240145398
    Abstract: A carrier structure is provided, in which at least one positioning area is defined on a chip-placement area of a package substrate, and at least one alignment portion is disposed on the positioning area. Therefore, the precision of manufacturing the alignment portion is improved by disposing the positioning area on the chip-placement area, such that the carrier structure can provide a better alignment mechanism for the chip placement operation.
    Type: Application
    Filed: December 8, 2022
    Publication date: May 2, 2024
    Applicant: SILICONWARE PRECISION INDUSTRIES CO., LTD.
    Inventors: Cheng-Liang HSU, Wan-Rou CHEN, Hsin-Yin CHANG, Tsung-Li LIN, Hsiu-Jung LI, Chiu-Lien LI, Fu-Quan XU, Yi-Wen LIU, Chih-Chieh SUN
  • Publication number: 20240088054
    Abstract: A carrier structure is provided with a plurality of package substrates connected via connecting sections, and a functional element and a groove are formed on the connecting section, such that the groove is located between the package substrate and the functional element. Therefore, when a cladding layer covering a chip is formed on the package substrate, the groove can accommodate a glue material overflowing from the cladding layer to prevent the glue material from contaminating the functional element.
    Type: Application
    Filed: December 8, 2022
    Publication date: March 14, 2024
    Applicant: SILICONWARE PRECISION INDUSTRIES CO., LTD.
    Inventors: Shu-Ting LAI, Chiu-Lien LI, Che-Min SU, Chun-Huan HUNG, Mu-Hung HSIEH, Cheng-Han YAO, Fajanilan Darcyjo Directo, Cheng-Liang HSU
  • Publication number: 20190091522
    Abstract: A golf putter includes a head and a shaft. The head has a head body having a top surface that is formed with a mounting groove. The shaft has a main body portion and a connecting portion connected to the main body portion. The connecting portion is inserted into the mounting groove, is movable along the mounting in a longitudinal direction, and has a non-circular cross-section, such that the connecting portion is non-rotatable relative to the mounting groove of the head.
    Type: Application
    Filed: February 22, 2018
    Publication date: March 28, 2019
    Inventor: Lien-An LI
  • Publication number: 20190091530
    Abstract: A club head is adapted to be connected to a shaft of a golf putter. The club head includes a head unit formed with a fixing hole that is adapted for insertion of the shaft thereinto. The fixing hole has a width in a lengthwise direction of the head unit adapted to be larger than a width of the shaft in the lengthwise direction, such that the position of the head unit relative to the shaft is adjustable in the lengthwise direction.
    Type: Application
    Filed: February 22, 2018
    Publication date: March 28, 2019
    Inventor: Lien-An LI
  • Publication number: 20190091523
    Abstract: A coupling device is adapted for use in a golf putter. The golf putter includes a shaft and a head. The coupling device is adapted for interconnecting the shaft and the head, and includes a first coupling member and a second coupling member. The first coupling member is adapted to be connected to the shaft. The second coupling member is adapted to be connected to the head, and is pivotally connected to the first coupling member so that an angle between the shaft and the head is adjustable.
    Type: Application
    Filed: February 22, 2018
    Publication date: March 28, 2019
    Inventor: Lien-An Li
  • Patent number: 10238923
    Abstract: A golf putter includes a head and a shaft. The head has a head body having a top surface that is formed with a mounting groove. The shaft has a main body portion and a connecting portion connected to the main body portion. The connecting portion is inserted into the mounting groove, is movable along the mounting in a longitudinal direction, and has a non-circular cross-section, such that the connecting portion is non-rotatable relative to the mounting groove of the head.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: March 26, 2019
    Inventor: Lien-An Li