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: 20230345004
    Abstract: In a method, a video bitstream comprising a current coding tree unit (CTU) in a current picture and a source CTU in a source picture is received. A value of a syntax element is determined. The syntax element indicates whether the current CTU is encoded using context-adaptive binary arithmetic coding (CABAC). Context parameters of a context model of the current CTU are derived based on (i) predefined context model initialization information, and (ii) CABAC state information of the source CTU corresponding to the current CTU. The CABAC state information is stored at a CTU level instead of a picture level or a slice level. The context model of the current CTU is determined based on the derived context parameters. The current CTU is reconstructed based on the determined context model.
    Type: Application
    Filed: April 18, 2023
    Publication date: October 26, 2023
    Applicant: Tencent America LLC
    Inventors: Guichun LI, Xiang LI, Lien-Fei CHEN
  • Publication number: 20230345023
    Abstract: Aspects of the disclosure provide a method and an apparatus including processing circuitry that decodes a value of a syntax element that indicates whether a current block is coded with a geometric partition mode (GPM) along a partition edge intersecting the current block. If the value of the syntax element indicates that the current block is coded with the GPM and a condition for adaptive blending is satisfied, width candidates in a width candidate list are reordered using template matching (TM) that is based on a current template of the current block and reference templates that correspond to the respective width candidates. A width candidate is selected from the reordered width candidate list. A width of a blending area defined by boundaries on both sides of the partition edge is determined based on the selected width candidate. The blending area is determined based on the width of the blending area.
    Type: Application
    Filed: April 18, 2023
    Publication date: October 26, 2023
    Applicant: Tencent America LLC
    Inventors: Lien-Fei Chen, Guichun LI, Xiang LI, Shan LIU
  • Publication number: 20230344541
    Abstract: A dummy light signal generation apparatus, which can be used in the communication field. The apparatus includes: a light source module configured to generate a first wavelength signal and a second wavelength signal, where the first wavelength signal has N first channels, and the second wavelength signal has M second channels; and a polarization beam combiner configured to polarize and combine the first wavelength signal and the second wavelength signal to output a dummy light signal, where the dummy light signal has N+M channels. A polarization state of a wavelength signal of a dummy light signal on any first channel is orthogonal to a polarization state of a wavelength signal of the dummy light signal on the second channel.
    Type: Application
    Filed: June 30, 2023
    Publication date: October 26, 2023
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Fei CHEN, Zhuang ZHAO, Ming LI
  • Publication number: 20230343254
    Abstract: A system is presented for a display engine. An optical imaging pathway comprises at least a selectively reflective image forming device. An illumination beam pathway comprises an optical source cluster including one or more optical sources, optical componentry configured to generate uniform illumination of the selectively reflective image forming device, and one or more photodiodes positioned to capture light reflected off the selectively reflective image forming device. A controller is configured to command the selectively reflective image forming device to operate with a predetermined reflectivity. While the selectively reflective image forming device is operating with the predetermined reflectivity, the optical source is commanded to emit a pulse of light and the one or more photodiodes are read out. A performance profile of one or more of the optical sources and the selectively reflective image forming device is adjusted based on the photodiode readout.
    Type: Application
    Filed: April 26, 2022
    Publication date: October 26, 2023
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Dmitriy CHURIN, Dmitry RESHIDKO, Parry Byron JOHNSON, Fei CHEN, Sean Patrick DEVER
  • Publication number: 20230336712
    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: Application
    Filed: November 1, 2022
    Publication date: October 19, 2023
    Applicant: Tencent America LLC
    Inventors: Guichun LI, Xiang LI, Lien-Fei CHEN, Shan LIU
  • Publication number: 20230336774
    Abstract: Aspects of the disclosure provide a method and an apparatus including processing circuitry that adds merge candidates into a merge candidate list of a current block in a current picture. The merge candidates include available merge candidates including one or more of spatial motion vector predictors (MVP(s)), temporal MVP(s), non-adjacent MVP(s), history-based MVP(s), and pairwise average MVP(s). Whether the merge candidate list includes all available SMVP, TMVP, NA-MVP, HMVP, and PAMVP, and no merge candidate in the merge candidate list has a zero motion vector (zero MV) are determined. If the merge candidate list includes all available SMVP, TMVP, NA-MVP, HMVP, and PAMVP, and no merge candidate in the merge candidate list has the zero MV, the merge candidate having the zero MV is added to the merge candidate list. Merge candidates in the merge candidate list including the merge candidate having the zero MV are reordered using template matching.
    Type: Application
    Filed: April 17, 2023
    Publication date: October 19, 2023
    Applicant: Tencent America LLC
    Inventors: Lien-Fei Chen, Guichun Li, Xiang Li, Shan Liu
  • Publication number: 20230336737
    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: Application
    Filed: November 9, 2022
    Publication date: October 19, 2023
    Applicant: Tencent America LLC
    Inventors: Lien-Fei CHEN, Xiang LI, Guichun LI, Shan LIU
  • Patent number: 11792403
    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 partitions a current block of a current picture based on a geometric partitioning mode (GPM). The current block is partitioned into two partitions in the GPM mode. 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 sample is encoded based on the weighting factor and the predictor corresponding to the sample.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: October 17, 2023
    Assignee: TENCENT AMERICA LLC
    Inventors: Lien-Fei Chen, Xiang Li, Guichun Li, Shan Liu
  • Publication number: 20230322953
    Abstract: Disclosed is a binding protein having at least two protein functional regions, the binding protein comprising a protein functional region A and a protein functional region B; the protein functional region A and the protein functional region B target different antigens or epitopes, the protein functional region A is a Fab or a scFv structure, the protein functional region B is a VH structure, and there are one or more of each of the protein functional region A and the protein functional region B. A multi-specific binding protein has a smaller molecular weight, fewer polypeptide chains, and a simpler structure. By means of different structure types, relative positions, binding valence and other parameters, the functional activities for different targets can be adjusted, and then different combinations of activities can be designed so as to meet the needs of different dose combinations of clinical combinations.
    Type: Application
    Filed: June 29, 2021
    Publication date: October 12, 2023
    Applicant: HARBOUR BIOMED (SHANGHAI) CO., LTD
    Inventors: Yun HE, Lei SHI, Haishan LUO, Qiang LV, Jinqiu HE, Zenglin PEI, Yongqiang WANG, Chen ZHONG, Bing HUANG, Jianxun ZHAO, Xingxing JIA, Xuekun ZHANG, Chuchu ZHAO, Fei CHEN, Lei NIU
  • Patent number: 11785358
    Abstract: A method and a system for reducing column noise of an image sensor are provided. The method includes: reading dark pixel data in each image frame and reading initial effective pixel data in each image frame, where dark pixels and initial effective pixels are both arranged in N columns; sequentially calculating the dark pixel data to obtain an average value of each column of dark pixels and an entire average value of the dark pixels in each image frame; obtaining a corrected value of each column according to the average value of each column of dark pixels and the entire average value of the dark pixels; and calculating the corrected value of each column and the corresponding initial effective pixel data in each image frame to obtain target effective pixel data. In the method, the dark pixel data is pre-processed.
    Type: Grant
    Filed: August 26, 2022
    Date of Patent: October 10, 2023
    Assignee: Chengdu Image Design Technology Co., Ltd.
    Inventors: Hua Cai, Yong Wang, Zheng Chen, Fei Chen, Tian Xia
  • Publication number: 20230312722
    Abstract: Provided are a B7H4-targeting antibody or a variant thereof, and a bispecific antibody containing the B7H4-targeting antibody, wherein the B7H4-targeting antibody comprises a light chain variable region and a heavy chain variable region. The variant has an amino acid mutation in the light chain variable region or heavy chain variable region of the antibody and can maintain the function of the antibody. The B7H4-targeting antibody has the activity of binding to human B7H4 and cynomolgus macaque B7H4, and does not cross-react with other B7 family members. The B7H4-targeting antibody exhibits good anti-tumor activity, T-cell activation activity and internalization activity in in-vivo and in-vitro experiments, and is more suitable for use as an ADC drug. Further provided is a bispecific antibody targeting B7H4 and CD3, which has a longer half-life, retains good stability and hydrophilicity, and reduces toxicity while ensuring efficacy.
    Type: Application
    Filed: June 29, 2021
    Publication date: October 5, 2023
    Applicant: NONA BIOSCIENCES (SUZHOU) CO., LTD.
    Inventors: Xiaodong WU, Yongqiang WANG, Fei CHEN, Jinqiu HE, Gezi JIA, Chuchu ZHAO, Qingfang CHEN, Yiping RONG
  • Publication number: 20230309619
    Abstract: A vaporization core for an electronic vaporization device includes: a porous body; and a heating film arranged on a surface of the porous body. The porous body has at least one unit layer, the at least one unit layer having a liquid storage advantage layer and a liquid locking advantage layer combined with the liquid storage advantage layer. The heating film is combined with a surface of the liquid locking advantage layer and at least partially infiltrates in the liquid locking advantage layer.
    Type: Application
    Filed: March 14, 2023
    Publication date: October 5, 2023
    Inventors: Bo LI, Yaohua ZHANG, Feng CHEN, Jicai LONG, Fei CHEN, Hongming ZHOU
  • Publication number: 20230309616
    Abstract: A vaporization core for an electronic vaporization device includes: a porous body; and a heating film arranged on a surface of the porous body. The porous body has at least one unit layer including a liquid storage advantage layer and a liquid locking advantage layer combined with the liquid storage advantage layer. The heating film is combined with a surface of the liquid storage advantage layer and at least partially infiltrates in the liquid storage advantage layer.
    Type: Application
    Filed: February 28, 2023
    Publication date: October 5, 2023
    Inventors: Bo LI, Yaohua ZHANG, Feng CHEN, Jicai LONG, Fei CHEN, Hongming ZHOU
  • Publication number: 20230314804
    Abstract: An illumination system for non-emissive polarization-sensitive microdisplays such as LCoS is implemented in a waveguide that guides illumination light from an unpolarized source to the microdisplay while simultaneously recycling light of the wrong polarization for the microdisplay to improve illumination efficiency. Polarization recycling may be performed at one or more of an input coupler that in-couples illumination light to the waveguide, the waveguide itself, or an output coupler that out-couples the illumination light from the waveguide to the microdisplay.
    Type: Application
    Filed: March 31, 2022
    Publication date: October 5, 2023
    Inventors: Ishan CHATTERJEE, Poon Yarn CHEE, Joel Steven KOLLIN, Fei CHEN
  • Patent number: 11775586
    Abstract: An embodiment of the present invention is directed to cloud automation that is environment agnostic and requires no prior knowledge of services and no service configuration. The innovative system provides a zero knowledge cloud service operation automation, with the limited exception of defining smart query logic.
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: October 3, 2023
    Assignee: JPMORGAN CHASE BANK, N.A.
    Inventor: Fei Chen
  • Publication number: 20230306372
    Abstract: In an example embodiment, a deep neural network is used to predict a classification for ingested job listings for a piece of information that is missing from the ingested job listings. More particularly, the deep neural network may comprise a multi-layer perceptron with a plurality of rectifier linear units (ReLUs). For a given category of information, a plurality of different information entities may be evaluated by the multi-layer perceptron against features of a job listing, producing a probability prediction of reach of those information entities for the job listing. The information entity with the highest predicted probability is identified by the multi-layer perceptron as the predicted information entity for that given category of information for the job listing.
    Type: Application
    Filed: March 7, 2022
    Publication date: September 28, 2023
    Inventors: Xilun Chen, Chen-Kun Chuang, Xing Wu, Fei Chen, Wenxuan Gao, Jingwei Wu, Rohan Rajiv, Swathi Singh, Mathias Arkayin, Andrew Wu
  • Publication number: 20230300364
    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 in a current picture is coded in a subblock-based frame-rate up conversion (FRUC) mode and determines a corresponding block of the current block based on an offset vector indicating an offset between the current block and the corresponding block in the current picture. The processing circuitry determines a temporal motion vector predictor (TMVP) of a first subblock in the corresponding block based on a subblock in a forward reference picture and a subblock in a backward reference picture. The subblocks in the forward and backward reference pictures are matched using the subblock-based FRUC mode. The processing circuitry determines a TMVP of a subblock in the current block based on the TMVP of the first subblock in the corresponding block.
    Type: Application
    Filed: November 9, 2022
    Publication date: September 21, 2023
    Applicant: Tencent America LLC
    Inventors: Lien-Fei CHEN, Guichun LI, Xiang LI, Shan LIU
  • Publication number: 20230296887
    Abstract: An emissive panel display comprising an array of microLEDs for producing pixels for images in a projection display system is configured with an array of microlenses in which each microlens in the array corresponds to a respective pixel on the panel display. The configuration of the microlenses varies based on their distance in the plane of the panel display from a central projected axis. Microlenses may be configured with surfaces that are optimized to improve optical efficiency. To improve display illumination uniformity, a microlens may be configured to manipulate the emission angular profile for a given pixel over a wide range to match its chief ray angle (CRA), in which the chief ray for the pixel passes through a center of an entrance pupil of projection optics in the display system.
    Type: Application
    Filed: March 18, 2022
    Publication date: September 21, 2023
    Inventors: Xuzhou LI, FEI CHEN, Ruipeng SUN
  • Patent number: 11750292
    Abstract: A method for determining an optical signal power change, wherein the method includes: A first optical signal that includes a plurality of wavelength signals is obtained, where the plurality of wavelength signals are distributed in a plurality of bands. Then, an optical power of each band and a center wavelength signal of each band are detected, and a preset single-wavelength transmit power and a preset coefficient are obtained. Next, an equivalent quantity N of equivalent wavelength signals is determined, and an equivalent wavelength signal corresponding to the first optical signal is determined. Further, a target power that is used to compensate for a first power change value of the first optical signal in transmission over an optical fiber is determined based on the preset coefficient, the equivalent wavelength signal, the equivalent quantity, and the preset single-wavelength transmit power.
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: September 5, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yuanwu Wang, Wei Liu, Fei Chen, Yufeng Su
  • Publication number: 20230274793
    Abstract: A DNA movable type storage system and method based on movable type printing including: (1) construct a physical DNA movable type library of data payloads and a physical DNA movable type library of indexes based on “DNA movable type codebook”, which consist of a variety of DNA oligonucleotides corresponding to all “DNA payload movable type elements” and “DNA index movable type elements” in the two libraries, respectively; (2) transcode from the storage binary data into corresponding “DNA movable type units”, each of which contains corresponding DNA payload movable type elements and related DNA index movable type elements; (3) link the abovementioned DNA payload and index movable type elements to form a physical “DNA movable type unit”, and put all generated DNA movable type units together for DNA storage, which cover all data information of the target file.
    Type: Application
    Filed: June 7, 2021
    Publication date: August 31, 2023
    Inventors: Fei CHEN, Dongbo BU, Guannan MA, Chenyang WANG, Jing XING