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).

  • Modifying bit depths in color-space transform coding
    Patent number: 11070810
    Abstract: In general, this disclosure describes techniques for coding video blocks using a color-space conversion process. A video coder, such as a video encoder or a video decoder, may determine a bit-depth of a luma component of the video data and a bit-depth of a chroma component of the video data. In response to the bit-depth of the luma component being different than the bit depth of the chroma component, the video coder may modify one or both of the bit depth of the luma component and the bit depth of the chroma component such that the bit depths are equal. The video coder may further apply the color-space transform process in encoding the video data.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: July 20, 2021
    Assignee: Qualcomm Incorporated
    Inventors: Li Zhang, Jianle Chen, Marta Karczewicz, Joel Sole Rojals, Woo-Shik Kim
  • Method for training voice data set, computer device, and computer-readable storage medium
    Patent number: 11069342
    Abstract: A method for training a voice data set is provided. A first test set of data selected from a first voice data set, and a first voice model parameter obtained by performing first voice model training based on a first voice data set, are obtained. Data from a second voice data set is randomly selected to generate a second test set. Further, second voice model training is performed based on the second voice data set and the first voice model parameter when the second test set and the first test set satisfy a similarity condition.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: July 20, 2021
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Tao Sun, Yueteng Kang, Xiaoming Zhang, Li Zhang
  • Construction of chimeric antigen receptor targeting CD20 antigen and activity identification of engineered T cells thereof
    Patent number: 11066457
    Abstract: Provided are a chimeric antigen receptor targeting CD20 antigen and a preparation method thereof. The extracellular antigen binding domain of the chimeric antigen receptor includes an antibody heavy chain variable region shown in SEQ ID NO: 7 or 9 or 33 and an antibody light chain variable region shown in SEQ ID NO: 11 or 13 or 35, and is capable of killing tumor cells.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: July 20, 2021
    Assignee: CELLULAR BIOMEDICINE GROUP HK LIMITED
    Inventors: Yihong Yao, Jiaqi Huang, Shigui Zhu, Wei Zhu, Xin Yao, Zhiyuan Li, Li Zhang, Lin Zhu, Anyun Ma, Yutian Wei, Yanfeng Li, Qingxia Wang, Jiaping He
  • MESSAGING FOR RANDOM ACCESS PROCEDURES
    Publication number: 20210219348
    Abstract: A method of wireless communication includes repeatedly transmitting, from a mobile device to a communication node, a first message using increasing power levels for initiating a two-step random-access procedure until a termination condition is met. The first message includes a payload part and optionally a preamble sequence. The termination condition includes (1) the mobile device receives an indication from the communication node that the payload part was received successfully, or (2) a number of repeated transmissions reaches a threshold.
    Type: Application
    Filed: March 26, 2021
    Publication date: July 15, 2021
    Inventor: Li ZHANG
  • REAGENT AND METHOD FOR FLUORESCENCE QUANTITATIVE REAL-TIME PCR DETECTION OF RCL
    Publication number: 20210214789
    Abstract: The present invention provides a reagent and method for detecting a replication-competent lentivirus (RCL) by fluorescence quantitative real-time polymerase chain reaction (PCR). In particular, the present invention provides a primer and probe combination for detecting RCL, and a method for performing detection using said primer and probe; the present invention also provides a reagent kit comprising said primer and probe. The primer and probe combination of the present invention detects RCL with high amplification efficiency and good specificity, and can be used for RCL detection and RCL monitoring of clinical patient peripheral blood samples which may occur during a production process.
    Type: Application
    Filed: January 21, 2019
    Publication date: July 15, 2021
    Applicants: SHANGHAI CELLULAR BIOPHAMACEUTICAL GROUP LTD., WUXI CELLULAR BIOPHAMACEUTICAL GROUP LTD.
    Inventors: Fang Liu, Liping Lan, Yutian Wei, Xun Ye, Li Zhang, Jiaqi Huang, Yihong Yao
  • SIMPLIFIED HISTORY BASED MOTION VECTOR PREDICTION
    Publication number: 20210218980
    Abstract: A video coding or decoding method includes using history-based motion vector prediction (HMVP) for conversion between multiple video blocks including a current block of video and a bitstream representation of the multiple video blocks such that for a uni-predicted block that for which a single reference picture is used for motion compensation, refraining from updating a look-up table for HMVP candidates for the uni-predicted block. The video coding or decoding method further includes performing the conversion using look-up tables for the multiple video blocks.
    Type: Application
    Filed: March 24, 2021
    Publication date: July 15, 2021
    Inventors: Li ZHANG, Kai ZHANG, Hongbin LIU, Yue WANG
  • INTERACTION OF ASYMMETRIC WEIGHTED MERGES AND OTHER CODING TOOLS
    Publication number: 20210218985
    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, wherein 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: April 1, 2021
    Publication date: July 15, 2021
    Inventors: Hongbin LIU, Li ZHANG, Kai ZHANG, Yue WANG
  • MICROWAVE-ASSISTED STERILIZATION AND PASTEURIZATION SYSTEM USING SYNERGISTIC PACKAGING, CARRIER AND LAUNCHER CONFIGURATIONS
    Publication number: 20210219392
    Abstract: Processes and systems that enhance the heating of packaged foodstuffs and other items in various microwave heating systems are described herein. It has been unexpectedly found that configuring the microwave heating zone of a microwave-assisted pasteurization or sterilization system so that the article carrier, the microwave launchers, and/or the packages have certain relative dimensions may significantly enhance the uniformity of heating of the articles. The result is pasteurized or sterilized articles that exhibit fewer hot and cold spots, a consistent microbial lethality rate, and desirable end properties, such as visual appearance, taste, and texture.
    Type: Application
    Filed: March 29, 2021
    Publication date: July 15, 2021
    Inventors: Matthew RAIDER, David BEHRINGER, Li ZHANG, Harold Dail KIMREY, JR.
  • Merging filters for multiple classes of blocks for video coding
    Patent number: 11064195
    Abstract: In one example, a device includes a memory configured to store video data, and one or more processing units implemented in circuitry configured to construct a plurality of filters for classes of blocks of a current picture of the video data, wherein to construct the plurality of filters, the one or more processing units are configured to generate a plurality of sets of filter coefficients, and for a subset of the plurality of filters, determine respective indexes that identify one of the sets of filter coefficients for the corresponding filter of the subset; decode a current block of the current picture, determine a class for the current block, select a filter of the plurality of filters that corresponds to the class for the current block, and filter at least one pixel of the current block using the selected filter.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: July 13, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Marta Karczewicz, Wei-Jung Chien, Li Zhang
  • Inter prediction with refinement in video processing
    Patent number: 11064206
    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: August 20, 2020
    Date of Patent: July 13, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Yue Wang
  • SELECTION OF ADJACENT NEIGHBORING BLOCK FOR INTRA CODING
    Publication number: 20210211655
    Abstract: Devices, systems and methods for digital video processing, which includes selection of adjacent neighboring block for intra coding, are described. In a representative aspect, a method for video processing includes selecting, for a conversion between a current block of visual media data and a bitstream representation of the current block, an intra prediction mode based on at least one of spatial neighboring blocks to the current block, and performing the conversion based on the intra prediction mode. The at least one of the spatial neighboring blocks is different from a first block that is located to a left of a first row of the current block and a second block that is located above a first column of the current block.
    Type: Application
    Filed: March 18, 2021
    Publication date: July 8, 2021
    Inventors: Li ZHANG, Kai ZHANG, Hongbin LIU, Yue WANG
  • SIMPLIFIED PARAMETER DERIVATION FOR INTRA PREDICTION
    Publication number: 20210211681
    Abstract: A method for video processing is provided. The method includes determining, for a conversion between a current video block of a video that is a chroma block and a coded representation of the video, parameters of a cross-component linear model that are completely determinable by two chroma samples and corresponding two luma samples; and performing the conversion based on the determining.
    Type: Application
    Filed: March 15, 2021
    Publication date: July 8, 2021
    Inventors: Kai ZHANG, Li ZHANG, Hongbin LIU, Jizheng XU, Yue WANG
  • UTILIZATION OF NON-SUB BLOCK SPATIAL-TEMPORAL MOTION VECTOR PREDICTION IN INTER MODE
    Publication number: 20210211647
    Abstract: A method of video processing includes determining, for a current block, at least one motion candidate list; and performing a conversion between the current block and a bitstream representation of the current block using the at least one motion candidate list, the at least one motion candidate list including at least one motion candidate derived from a set of neighboring blocks including one or more spatial and temporal neighboring blocks.
    Type: Application
    Filed: March 19, 2021
    Publication date: July 8, 2021
    Inventors: Hongbin LIU, Li ZHANG, Kai ZHANG, Yue WANG
  • REPRESENTATION OF AFFINE MODEL
    Publication number: 20210211714
    Abstract: A method, a video processing apparatus and computer-readable program medium for video process is disclosed. A method of video processing includes storing, during a conversion between a current block of video and a bitstream representation of the current block, affine model parameters for the current block; and performing the conversion using the affine model parameters, wherein the affine model parameters are derived at least from motion vectors of control points of the current block.
    Type: Application
    Filed: March 5, 2021
    Publication date: July 8, 2021
    Inventors: Kai ZHANG, Li ZHANG, Hongbin LIU, Yue WANG
  • WLAN BASEBAND CHIP AND FDMA PPDU GENERATION METHOD
    Publication number: 20210211344
    Abstract: A WLAN baseband chip and an FDMA PPDU generation method are disclosed. The WLAN baseband chip obtains a subcarrier coefficient corresponding to a subcarrier set, m LDR SYNC sequences, and n?m HDR SYNC sequences. The WLAN baseband chip performs duplicating processing on m data streams in n data streams, to obtain m data sequences on which the duplicating processing has been performed and n?m remaining data streams. The WLAN baseband chip obtains m pieces of to-be-modulated data based on the m LDR SYNC sequences and the m data sequences on which the duplicating processing has been performed, and obtains n?m pieces of to-be-modulated data based on the n?m HDR SYNC sequences and the n?m remaining data streams, to obtain n pieces of to-be-modulated data. The WLAN baseband chip performs postprocessing to obtain a frequency-domain symbol sequence, to obtain an FDMA PPDU.
    Type: Application
    Filed: January 5, 2021
    Publication date: July 8, 2021
    Inventors: Shengsen Wang, Li Zhang
  • METHOD FOR PREPARING HYDROCRACKING CATALYST
    Publication number: 20210205801
    Abstract: This invention discloses a preparation method of a hydrocracking catalyst. According to the method, a new functional group is modified through chemical bonds on the surface of a traditionally prepared inorganic carrier, and a VIB group metal element and a VIIIB metal element are then loaded on the carrier to prepare the hydrocracking catalyst. The hydrocracking catalyst prepared according to the invention has a higher diesel liquid yield.
    Type: Application
    Filed: October 11, 2018
    Publication date: July 8, 2021
    Applicant: FU ZHOU UNIVERSITY
    Inventors: Changkun LIU, Wenqing FAN, Jintian WU, Li ZHANG
  • NON-AFFINE BLOCKS PREDICTED FROM AFFINE MOTION
    Publication number: 20210211679
    Abstract: A method, a video processing apparatus and computer-readable program medium for video process is disclosed. The method of video coding including: using, during a conversion between a current block of video and a bitstream representation of the current block, an affine motion mode for the current block; updating motion information of the current block after motion compensation so as to obtain updated motion information of the current block; and using the updated motion information during conversion of subsequent video blocks and their respective bitstream representations.
    Type: Application
    Filed: March 23, 2021
    Publication date: July 8, 2021
    Inventors: Kai ZHANG, Li ZHANG, Hongbin LIU, Yue WANG
  • INTRA MODE CODING BASED ON HISTORY INFORMATION
    Publication number: 20210211654
    Abstract: Devices, systems and methods for digital video processing, which includes intra mode coding based on history information, are described. In a representative aspect, a method for video processing includes selecting, for a conversion between a current block of visual media data and a bitstream representation of the current block, a first intra prediction mode based on at least a first set of history intra coding information that includes statistical information of a set of intra prediction modes, and performing the conversion based on the first intra prediction mode.
    Type: Application
    Filed: March 18, 2021
    Publication date: July 8, 2021
    Inventors: Li ZHANG, Kai ZHANG, Hongbin LIU, Yue WANG
  • MV PLANAR MODE WITH BLOCK LEVEL
    Publication number: 20210211678
    Abstract: A method of video processing includes: deriving, from a set of neighboring blocks, a motion prediction of a current block which can be split into multiple sub-blocks; and performing a conversion between the current block and a bitstream representation of the current block using the derived motion prediction, the motion prediction being applied to the current block on a basis of a block level instead of on a sub-block level.
    Type: Application
    Filed: March 19, 2021
    Publication date: July 8, 2021
    Inventors: Hongbin LIU, Li ZHANG, Kai ZHANG, Yue WANG
  • MOTION VECTOR RANGE BASED ON MOTION VECTOR PRECISION
    Publication number: 20210211710
    Abstract: A method for video processing is provided to comprise: determining a motion vector precision of one or more motion vectors related to a current video block of a video; selecting, based on the motion vector precision, a motion vector range; and performing, based on the motion vector range, a conversion between the current video block and a bitstream representation of the video.
    Type: Application
    Filed: March 25, 2021
    Publication date: July 8, 2021
    Inventors: Li ZHANG, Kai ZHANG, Hongbin LIU, Jizheng XU, Yue WANG