Patents by Inventor Fei Chen

Fei Chen 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: 20230073917
    Abstract: In a method, 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 partitioned into at least a first partition and a second partition based on a geometric partition mode (GPM). The first partition is associated with an intra block copy (IBC) prediction mode, and the second partition is associated with an intra prediction mode. Prediction mode information for a first subblock of a plurality of subblocks of the current block is stored. The prediction mode information includes one of a DC mode, a Planar mode, and an intra prediction mode based on whether the first subblock is associated with one of the IBC prediction mode, the intra prediction mode, and both the IBC prediction mode and the intra prediction mode.
    Type: Application
    Filed: August 29, 2022
    Publication date: March 9, 2023
    Applicant: Tencent America LLC
    Inventors: Lien-Fei CHEN, Xiang LI, Shan LIU
  • Publication number: 20230068035
    Abstract: A method of video decoding includes receiving a syntax element associated with a current coding block that is partitioned into a first part and a second part along a partition edge for prediction in a geometric partitioning mode. The method further includes determining a weight index at a sample position of the current coding block, and determining a stored motion vector type for a first motion storage unit in a motion field of the current coding block based on a motion index of the first motion storage unit. The method further includes storing the motion field of the current coding block based on the stored motion vector type determined for the first motion storage unit.
    Type: Application
    Filed: October 27, 2022
    Publication date: March 2, 2023
    Applicant: Tencent America LLC
    Inventors: Lien-Fei CHEN, Xiang LI, Guichun LI, Shan LIU
  • Publication number: 20230054289
    Abstract: Aspects of the disclosure provide a method and an apparatus for video decoding. The apparatus includes processing circuitry receiving prediction information of a plurality of blocks in a current picture from a coded video bitstream. The processing circuitry determines, based on the prediction information, whether at least one of a decoder-side motion vector refinement (DMVR) mode or a bi-directional optical flow (BDOF) mode is allowed for the plurality of blocks. If the DMVR mode or the BDOF mode is allowed for the plurality of blocks, the processing circuitry determines that a plurality of merge with motion vector difference (MMVD) merge flags indicating whether a MMVD mode is applied to the plurality of blocks, respectively, is inferred as false for the plurality of blocks. If the plurality of MMVD merge flags is inferred as false, the processing circuitry reconstructs each block in the plurality of blocks without applying the MMVD mode.
    Type: Application
    Filed: August 15, 2022
    Publication date: February 23, 2023
    Applicant: Tencent America LLC
    Inventors: Xiang LI, Lien-Fei CHEN, Shan LIU
  • Patent number: 11580457
    Abstract: Example prediction methods and apparatus are described. One example includes sending a first model parameter and a second model parameter by a server to a plurality of terminals. The first model parameter and the second model parameter are adapted to a prediction model of the terminal. The server receives a first prediction loss sent by at least one of the plurality of terminals. A first prediction loss sent by each of the at least one terminal is calculated by the terminal based on the prediction model that uses the first model parameter and the second model parameter. The server updates the first model parameter based on the first prediction loss sent by the at least one terminal to obtain an updated first model parameter. The server updates the second model parameter based on the first prediction loss sent by the at least one terminal to obtain an updated second model parameter.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: February 14, 2023
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Fei Chen, Zhenhua Dong, Zhenguo Li, Xiuqiang He, Li Qian, Shuaihua Peng
  • Publication number: 20230031886
    Abstract: Coded information indicates that an adaptive up-sampling filter is applied to a current block in a current picture. A respective class for each of a plurality of subblocks of the current block is determined. A respective filter coefficient set is determined for each of the plurality of subblocks from a plurality of filter coefficient sets of the adaptive up-sampling filter. The respective filter coefficient set is determined based on at least one class corresponding to the respective subblock and a respective sampling rate of reference pixel resampling (RPR) applied on a reference picture of the current picture. The respective sampling rate is associated with one of a plurality of phases of the RPR. The adaptive up-sampling filter is applied to the current block to generate filtered reconstructed samples of the current block based on the determined respective filter coefficient sets without applying a secondary adaptive loop filter (ALF).
    Type: Application
    Filed: July 29, 2022
    Publication date: February 2, 2023
    Applicant: Tencent America LLC
    Inventors: Lien-Fei CHEN, Xiang LI, Shan LIU
  • Publication number: 20230034458
    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: Application
    Filed: July 29, 2022
    Publication date: February 2, 2023
    Applicant: Tencent America LLC
    Inventors: Lien-Fei CHEN, Xiang LI, Ling LI, Shan LIU
  • Publication number: 20230033501
    Abstract: Coded information of a current block is received. The current block is partitioned into at least a first partition and a second partition based on a geometric partition mode (GPM). A first prediction mode for the first partition of the current block is determined based on a first number of neighboring reconstructed samples adjacent to the first partition being larger than a threshold value. The threshold value corresponds to availability of at least one intra prediction mode for the GPM. In response to the first number of neighboring reconstructed samples adjacent to the first partition being smaller than the threshold value, a flag indicating whether the current block is intra coded or inter coded is determined not to be included in the coded information. The first prediction mode is inferred as inter prediction mode. The first partition of the current block is reconstructed based on the first prediction mode.
    Type: Application
    Filed: July 29, 2022
    Publication date: February 2, 2023
    Applicant: Tencent America LLC
    Inventors: Lien-Fei CHEN, Ling LI, Xiang LI, Shan LIU
  • Patent number: 11553199
    Abstract: Aspects of the disclosure provide methods, apparatuses, and non-transitory computer-readable storage mediums for video encoding/decoding. An apparatus includes processing circuitry that decodes prediction information for a current block in a current picture that is a part of a coded video sequence. The prediction information includes an adaptive color transform (ACT) flag indicating whether ACT is enabled for the current block. The processing circuitry determines whether a transform unit (TU) split is performed on the current block based on a maximum transform size that is determined according to whether the ACT flag indicates the ACT is enabled for the current block. The processing circuitry determines a type of the TU split in response to the TU split being determined to be performed on the current block. The processing circuitry performs the TU split on the current block based on the determined type of the TU split.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: January 10, 2023
    Assignee: TENCENT AMERICA LLC
    Inventors: Lien-Fei Chen, Xiang Li, Shan Liu
  • Patent number: 11547702
    Abstract: Disclosed is use of amlexanox or a salt thereof or a solvate thereof in preparation of a drug having an inhibitory action on the smooth muscle cells, in particular a drug for preventing and treating vascular restenosis. Further disclosed is a medical device, particularly a drug stent, the surface of which is distributed with amlexanox or the salt thereof or the pharmaceutical composition thereof. Amlexanox has an activity in inhibition of the proliferation of smooth muscle cells, has a low inhibitory property of the endothelial cell growth, is particularly suitable for applying on a medical device to prevent the incidence of vascular restenosis, while not delaying the repair of endothelium.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: January 10, 2023
    Assignee: MICROPORT SINICA CO., LTD.
    Inventors: Lu Chen, Junfei Li, Fei Chen, Xiao Cheng
  • Publication number: 20230003444
    Abstract: Described herein are methods and systems for producing liquefied natural gas (LNG) from a methane-containing synthetic gas (MCSG). An MCSG feed stream may be cooled and partially liquefied using one or more heat exchanger units. A first phase separator and a second phase separator in downstream fluid flow communication with the first phase separator may be used to separate the partially liquefied MCSG stream into a first residue gas stream and first and second feed streams, the first and second feed streams then being fed into a distillation column to produce an LNG stream and a second residue gas stream.
    Type: Application
    Filed: June 28, 2021
    Publication date: January 5, 2023
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Mark Julian Roberts, Fei Chen, Russell B. Shnitser
  • Publication number: 20230001327
    Abstract: The present disclosure provides an automatic separation apparatus for four fractions of heavy oil and a separation method thereof, wherein the apparatus includes a solvent reservoir tank (1), a separation unit for four fractions of heavy oil (100) and a receiving apparatus (9). The separation unit for four fractions of heavy oil (100) includes: a filter disc (4) having one end in communication with the solvent reservoir tank (1), and the other end in communication with an inlet of a pre-column flow path switching valve (5); a chromatographic column (6) having an inlet in communication with an outlet of the pre-column flow path switching valve (5), and an outlet in communication with an inlet of a post-column flow path switching valve (8). The receiving apparatus is in communication with an outlet of the post-column flow path switching valve (8).
    Type: Application
    Filed: October 26, 2020
    Publication date: January 5, 2023
    Inventors: Qing Cao, Dawei Wen, Shengbao He, Yuan Xiu, Lin Tian, Dingzhong Yang, Jing He, Minna Dou, Fei Chen, Kunhong Liu, Chenchen Li, Huifeng Xue, Jianming Wang
  • Publication number: 20220411513
    Abstract: Provided is an anti-PD-L1 antigen binding protein, capable of binding to primate-derived PD-L1 with a KD value of 1×10?8 M or less. The antigen binding protein can block the binding of PD-1 and CD80 to PD-L1, stimulate the secretion of cytokines in immune cells, and can inhibit tumor growth and/or tumor cell proliferation. Also provided is a fusion protein, comprising human TGFBRII or a fragment thereof and the antigen binding protein. Also provided is an application of the antigen binding protein and/or the fusion protein in the prevention and treatment of tumors or cancers.
    Type: Application
    Filed: September 29, 2020
    Publication date: December 29, 2022
    Applicant: Harbour BioMed (Shanghai) Co., Ltd
    Inventors: Yun HE, Shuwen REN, Bin LIU, Xin GAN, Donghai LI, Fei CHEN, Ling WANG, Jin LI, Yiping RONG
  • Patent number: 11539395
    Abstract: Disclosed are a high-voltage pulse generator and a communication method therefor. The high-voltage pulse generator comprises a master controller and a sub-controller. Data transmitted between the master controller and the sub-controller at least comprise a first class of data and a second class of data, and, the second class of data at least comprise two types. The communication method comprises the following steps: during the present instance of transmitting a first class of data, transmitting partial types of a second class of data; during the next instance of transmitting the first class of data, transmitting other types of second class of data; and repeatedly executing the step until the transmission of all types of second class of data is completed. The present application ensures an increased real time performance in the transmission of the first class of data; moreover, controller pin resources occupied are reduced, costs are reduced, and the problem of data conflict is avoided.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: December 27, 2022
    Inventors: Shengfang Fan, Xiaosen Chen, Fei Chen, Jianwei Hao, Wanquan Wang
  • Publication number: 20220402012
    Abstract: The present invention discloses a preparation method for a metal material, including: horizontally placing a to-be-prepared metal material between wavy surfaces of a female die and a male die; connecting a press machine with the male die; pressing the metal material through the male die, so that the metal material makes complete contact with the male die and the female die; ejecting the pressed metal material; horizontally overturning the metal material, and then placing the metal material between the wavy surfaces of the female die and the male die; repeatedly performing the pressing and overturning processes until accumulated strain of the metal material meets a requirement; and taking out the metal material after the deformed metal material is flattened by a plane die. According to the present invention, a large-size nano grained material can be manufactured.
    Type: Application
    Filed: August 23, 2022
    Publication date: December 22, 2022
    Applicant: SHANGHAI JIAO TONG UNIVERSITY
    Inventors: Fei CHEN, Guangshan WU, Zhenshan CUI, Jiao ZHANG, Baode SUN
  • Publication number: 20220407715
    Abstract: The present disclosure relates to a method and apparatus for recording mileage data of a vehicle on a blockchain. A method for recording mileage data of a vehicle on a blockchain is provided, including: providing a vehicle database and a mileage database, where the vehicle database is configured to store an identification number that uniquely identifies a vehicle, and the mileage database is configured to store mileage data about vehicle kilometers of travel (VKT); obtaining a vehicle identification number (VIN) from the vehicle database; obtaining the mileage data of the vehicle from the mileage database according to the VIN; and storing data related to the mileage data in the blockchain.
    Type: Application
    Filed: December 16, 2021
    Publication date: December 22, 2022
    Applicant: ZHIJI AUTOMOTIVE TECHNOLOGY CO., LTD.
    Inventors: Fei Chen, Wei Zhang, Gang Qian, Yanyu Chen, Ruixue Wang, Ziyu Liu
  • Publication number: 20220406101
    Abstract: A vehicle data processing method and device are provided. The vehicle data processing method includes: acquiring vehicle data; determining a degree of completion of a preset goal according to the vehicle data; and determining incentive reference data associated with an incentive to a user according to the degree of completion of the preset goal.
    Type: Application
    Filed: December 17, 2021
    Publication date: December 22, 2022
    Applicant: ZHIJI AUTOMOTIVE TECHNOLOGY CO., LTD.
    Inventors: Shiyi FAN, Ruixue WANG, Gang QIAN, Minwei FANG, Fei CHEN, Zhou YANG
  • Patent number: 11533498
    Abstract: A method of video decoding including receiving a syntax element from a bitstream of a coded video associated with a current coding block that is partitioned into a first part and a second part along a partition edge for prediction in a geometric partitioning mode, and determining a weight index at a sample position of the current coding block. A stored motion vector type for a first motion storage unit in a motion field of the current coding block is determined based on a motion index of the first motion storage unit. The weight index at the sample position of the current coding block is used as the motion index of the first motion storage unit. The motion field of the current coding block can be stored based on the stored motion vector type determined for the first motion storage unit in the motion field of the current coding block.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: December 20, 2022
    Assignee: Tencent America LLC
    Inventors: Lien-Fei Chen, Xiang Li, Guichun Li, Shan Liu
  • Patent number: 11528216
    Abstract: A method and an apparatus for controlling a network traffic path are provided. The method includes: receiving routing advertisement information from a first network to a second network; determining all routing nodes included in a path through which data pass when flowing from the second network to the first network according to the routing advertisement information; and configuring a next hop routing node for each determined routing node, where the next hop routing node is a node in all the routing nodes included in the path and is adjacent to the routing node for which the next hop routing node is configured, and the routing node for which the next hop routing node is configured does not include a routing node of the first network or a routing node of the second network.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: December 13, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Shunwan Zhuang, Changjiang Yan, Fengqing Yu, Fei Chen, Lili Wang, Yuanbin Ouyang
  • Publication number: 20220389409
    Abstract: The present disclosure relates to compositions and methods for assessing relative DNA levels (e.g., levels of genomic DNA, mtDNA, viral DNA, bacterial DNA, etc.) in a spatially-defined manner across a tissue sample, specifically providing DNA sequence identity and relative abundance information at high-resolution across multiple locations assessed across the tissue sample.
    Type: Application
    Filed: November 9, 2020
    Publication date: December 8, 2022
    Applicants: THE BROAD INSTITUTE, INC., PRESIDENT AND FELLOWS OF HARVARD COLLEGE, THE GENERAL HOSPITAL CORPORATION
    Inventors: Tongtong Zhao, Fei Chen, Jason Buenrostro, Evan Macosko
  • Publication number: 20220391690
    Abstract: Described herein is a technique for mapping the raw text of a job title of an online job posting to an entity embedding, associated with an entity or entry of a title taxonomy. The raw text of the job title is first encoded to generate a multilingual word embedding in a multilingual word embedding space. Then, the vector representation of the job title, as represented in the multilingual word embedding space is translated, using a neural network, to a vector representation of the job title in the entity embedding space. Finally, a nearest neighbor search is performed to identify an entity embedding associated with an entity or entry in the title taxonomy that has a vector representation that is closest in distance to the vector output by the neural network.
    Type: Application
    Filed: June 7, 2021
    Publication date: December 8, 2022
    Inventors: Shuai Wang, Piede Zhong, Ji Yan, Feng Guo, Dan Shacham, Fei Chen