Patents by Inventor Xiang Zhao

Xiang Zhao 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: 20210362317
    Abstract: An electric tool includes a body housing, a motor, a signal switch, and an operating component. The body housing includes a first housing portion, a second housing portion, and a third housing portion which are arranged sequentially from front to back. The motor is supported in the first housing portion and includes a motor shaft rotatable around a rotation axis. The signal switch includes a trigger portion capable of being triggered to control start-up or interruption of the motor. The operating component is disposed on the body housing, and the operating component is configured to move on the body housing to turn on or off the signal switch. A moving direction of the trigger portion is substantially perpendicular to an operating direction of the operating component.
    Type: Application
    Filed: May 13, 2021
    Publication date: November 25, 2021
    Inventors: Jiayu Li, Xiang Zhao
  • Publication number: 20210359461
    Abstract: An electric tool includes a body, a battery pack, and a guide portion including a primary guide unit and a secondary guide unit. The primary guide unit and the secondary guide unit each extend in a preset direction and the primary guide unit and the secondary guide unit each are arranged in the longitudinal direction between a connecting portion of the battery pack and a mounting portion of the body. The primary guide unit and the secondary guide unit implement rigid mating. The primary guide unit includes primary mating surfaces mating with each other in the transverse direction, the secondary guide unit includes secondary mating surfaces mating with each other in the transverse direction, and a ratio of a width of a transverse gap between the primary mating surfaces to a width of a transverse gap between the secondary mating surfaces is greater than or equal to 0.3.
    Type: Application
    Filed: March 19, 2021
    Publication date: November 18, 2021
    Inventors: Fukinuki Masatoshi, Xiang Zhao, Muyang Ni
  • Publication number: 20210355932
    Abstract: An analysis method of absolute energy efficiency and relative energy efficiency of the compressed air system. For the compressed air system operating in a form of a single compressor, a gas flow rate and a corresponding operating power of the compressor operating in the single compressor model are measured under a specified flow rate. Meanwhile, influencing factors of the compressor operation are monitored. The absolute energy efficiency of the compressor is defined, and a curve of the absolute energy efficiency of the compressor varying with the operating time versus the above factors are plotted in a same coordinate system. Obtaining absolute energy efficiency data of the compressor in a corresponding state. By analyzing the absolute energy efficiency under corresponding conditions and based on the corresponding chart, the actual unit consumption of a given single compressor and its changing rule under different production and environmental operating conditions can be intuitively analyzed.
    Type: Application
    Filed: July 29, 2021
    Publication date: November 18, 2021
    Inventors: Xiaohua Wang, Chaoyang Zhai, Kai Zhao, Qi Lu, Zhongcai Tang, Xiang Fan
  • Patent number: 11174254
    Abstract: The present invention relates to a 1,2-dihydropyrrol[3,4-c]pyridin/pyrimidin-3-one derivative substituted by N-(3-aminophenyl)acrylamide and a preparation method and pharmaceutical use thereof. In particular, the present invention relates to a compound of formula (II) or a pharmaceutically acceptable salt, stereoisomer, solvate, or prodrug thereof and a preparation method and application of the same. The definition of each substituent in the formula is described in detail in the specification and claims.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: November 16, 2021
    Assignees: YANGTZE RIVER PHARMACEUTICAL GROUP CO., LTD., SHANGHAI HAIYAN PHARMACEUTICAL TECHNOLOGY CO., LTD.
    Inventors: Shuchun Guo, Fusheng Zhou, Xiang Chen, Jinzhu Zhao, Dong Huang, Jing Xie, Changjiang Qiao, Wan He, Kai Zhang, Xi Chen, Jiong Lan
  • Patent number: 11175442
    Abstract: The present disclosure provides a color filter substrate and a display panel. The color filter substrate is divided into a display region and a non-display region around the display region, and includes a base and a color filter layer on the base. The color filter layer includes a plurality of columns of color resists arranged at intervals, any two adjacent columns of color resists in the display region define one of a plurality of first openings, any two adjacent color resists in the non-display region define one of a plurality of second openings, and a width of an orthographic projection of the second opening on the base is greater than a width of an orthographic projection of the first opening on the base.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: November 16, 2021
    Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chunhong Ma, Baojie Zhao, Wei Wang, Xiongwei Wang, Xiang Hui, Yan Zhao, Yanbin Zhang, Li Wang
  • Patent number: 11178396
    Abstract: A method of selecting a reference sample used to encode a current block in an encoded video bitstream using at least one processor includes determining that a constrained intra prediction (CIP) mode is enabled; determining that a neighboring sample of the current block belongs to a coding block that is coded using intra block copy (IBC) coding; based on the determining that the neighboring sample belongs to the coding block that is coded using the IBC coding, selecting the neighboring sample as the reference sample; and encoding the current block using intra prediction coding based on the reference sample.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: November 16, 2021
    Assignee: TENCENT AMERICA LLC
    Inventors: Xin Zhao, Xiang Li, Liang Zhao, Shan Liu
  • Publication number: 20210352327
    Abstract: A method of partitioning a coding unit (CU) into one or more transform units (TUs) for encoding a video sequence using at least one processor includes determining a height of the CU; determining a width of the CU; determining a TU size of each of the one or more TUs based on the height of the CU and the width of the CU; determining one or more TU positions of the one or more TUs based on the height of the CU and the width of the CU; and partitioning the CU into the one or more TUs based on the determined size of the one or more TUs and the one or more positions of the one or more TUs.
    Type: Application
    Filed: July 16, 2021
    Publication date: November 11, 2021
    Applicant: TENCENT AMERICA LLC
    Inventors: Xin ZHAO, Liang ZHAO, Xiang LI, Shan LIU
  • Patent number: 11172197
    Abstract: A method of signaling an intra prediction mode used to encode a current block in an encoded video bitstream using at least one processor includes determining a plurality of candidate intra prediction modes; generating a most probable mode (MPM) list using the plurality of candidate intra prediction modes; signaling a reference line index indicating a reference line used to encode the current block from among a plurality of reference lines including an adjacent reference line and a plurality of non-adjacent reference lines; and signaling an intra mode index indicating the intra prediction mode, wherein the MPM list is generated based on the reference line used to encode the current block and whether an intra sub-partition (ISP) mode is enabled.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: November 9, 2021
    Assignee: TENCENT AMERICA LLC
    Inventors: Liang Zhao, Xin Zhao, Xiang Li, Shan Liu
  • Patent number: 11172211
    Abstract: Aspects of the disclosure provide methods and an apparatus for video encoding/decoding. The apparatus includes processing circuitry that decodes coded information of a coding unit (CU) from a coded video bitstream. The coded information indicates a last position of non-zero transform coefficients of a first coding block (CB) of the CU. The processing circuitry determines whether a secondary transform index is signaled in the coded information based on the last position and whether to perform a secondary transform on a second CB based on whether the secondary transform index is determined to be signaled in the coded information. When the secondary transform is determined to be performed, the processing circuitry performs the secondary transform on the second CB and reconstructs the second CB. Responsive to the secondary transform being determined not to be performed, the processing circuitry reconstructs the second CB without performing the secondary transform on the second CB.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: November 9, 2021
    Assignee: Tencent America LLC
    Inventors: Xin Zhao, Xiang Li, Shan Liu
  • Patent number: 11172199
    Abstract: A method, computer program, and computer system is provided for video coding. Video data comprising a chroma component and a luma component is received. Luma samples are extracted from the luma component of the received video data. The chroma component is filtered by a cross-component adaptive loop filter (CC-ALF) based on a location of a chroma sample associated with the chroma component, the extracted luma samples, filter weights associated with the extracted luma samples, and an offset value.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: November 9, 2021
    Assignee: TENCENT AMERICA LLC
    Inventors: Yixin Du, Xin Zhao, Xiang Li, Shan Liu
  • Patent number: 11172230
    Abstract: A method for video decoding in a decoder includes deriving for a block encoded under an intra prediction mode, a candidate list that includes a first candidate intra prediction mode value (Mode1) that corresponds to an intra prediction mode of a neighbor block that neighbors the encoded block as a first one of the plurality of intra prediction modes, and a second candidate intra prediction mode value (Mode2) and a third candidate intra prediction mode value (Mode3) that are determined in accordance with a predetermined offset from the first candidate intra prediction mode value and a modulo M operation, in which M is a power of 2 and not equal to 32. The method further includes determining an intra prediction mode value for the encoded block in accordance with the derived candidate list.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: November 9, 2021
    Assignee: Tencent America LLC
    Inventors: Xin Zhao, Shan Liu, Liang Zhao, Xiang Li
  • Publication number: 20210344961
    Abstract: A method of video decoding performed in a video decoder includes determining whether a first block associated with a second block is coded with a block differential pulse code modulation (BDPCM) mode. The method further includes, in response to determining that the first block is coded with the BDPCM mode, associating the first block with an intra prediction mode value based on a BDPCM directional flag. The method further includes determining an inter prediction mode value for the second block using the intra prediction mode value associated with the first block. The method further includes reconstructing the second block using the determined intra prediction mode value.
    Type: Application
    Filed: April 29, 2020
    Publication date: November 4, 2021
    Applicant: Tencent America LLC
    Inventors: Xin ZHAO, Xiang LI, Liang ZHAO, Shan LIU
  • Publication number: 20210344966
    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: July 12, 2021
    Publication date: November 4, 2021
    Applicant: TENCENT AMERICA LLC
    Inventors: Liang ZHAO, Xin ZHAO, Xiang LI, Shan LIU
  • Patent number: 11166044
    Abstract: A method of controlling residual coding for decoding or encoding of a video sequence, is performed by at least one processor and includes determining whether a small transform size of a primary transform is to be used for the residual coding of a coded block of the video sequence. The method further includes based on the small transform size of the primary transform being determined to be used, identifying, as the primary transform, a first transform set including discrete sine transform (DST)-4 and discrete cosine transform (DCT)-4, based on the small transform size of the primary transform being determined to not be used, identifying, as the primary transform, a second transform set including DST-7 and DCT-8, and performing the residual coding of the coded block, using the identified primary transform.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: November 2, 2021
    Assignee: TENCENT AMERICA LLC
    Inventors: Xin Zhao, Xiang Li, Shan Liu
  • Publication number: 20210336569
    Abstract: Provided is a Direct Circuit (DC) bus discharge control method, including that: an active discharge instruction is received; a motor current signal is acquired according to the active discharge instruction; the motor current signal is converted into a current signal in a stator coordinate system; a voltage control signal in the stator coordinate system is output based on the current signal in the stator coordinate system and a current reference instruction of a preset stator coordinate system, the current reference instruction of the preset stator coordinate system being a high-frequency alternating current; and the voltage control signal in the stator coordinate system is converted into a three-phase voltage control signal, and a working state of a switching device is controlled according to the three-phase voltage control signal.
    Type: Application
    Filed: August 31, 2018
    Publication date: October 28, 2021
    Inventors: Zhuliang XIA, Lingwei LIANG, Shu CHENG, Xiaokun ZHAO, Xiutian LIU, Xiang HAN
  • Publication number: 20210337191
    Abstract: A method of video decoding includes determining, for a current block of a picture, one of a plurality of reference lines. The method includes determining an intra prediction mode for the current block in accordance with the determined one of the plurality of reference lines. The method further includes performing intra prediction for the current block based on the determined intra prediction mode and one or more samples included in the determined one of the plurality of reference lines. The plurality of reference lines includes an adjacent reference line that is adjacent to the current block and at least one non-adjacent reference line that is not adjacent to the current block, and each of the at least one non-adjacent reference line is associated with a decreasing number of intra prediction modes with respect to a direction away from the current block.
    Type: Application
    Filed: July 9, 2021
    Publication date: October 28, 2021
    Applicant: TENCENT AMERICA LLC
    Inventors: Xin ZHAO, Xiang LI, Shan LIU, Liang ZHAO
  • Publication number: 20210335127
    Abstract: The present application discloses a traffic monitoring method, an apparatus, a device, and a storage medium, relates to fields of autonomous driving, intelligent transportation, big data. The specific implementation is: acquiring road condition information and/or vehicle state information collected by a terminal device, where the terminal device is at least one of an unmanned vehicle and an unmanned aerial vehicle; performing a data analysis on the road condition information and/or the vehicle state information, and identifying a traffic event. Through the above procedure, monitoring efficiency of the traffic state is improved.
    Type: Application
    Filed: July 2, 2021
    Publication date: October 28, 2021
    Inventors: Yuan WANG, Jin ZHAO, Xing SU, Shewei DENG, Xiang YANG, Hao ZHOU, Jing YAN, Shenglin QIN, Xiaoliang CONG, Yaling ZHANG
  • Patent number: 11159795
    Abstract: A method and apparatus for performing maximum transform size control for decoding of a video sequence includes identifying, by a decoder, a high-level syntax element associated with the video sequence. A maximum transform size associated with the video sequence is determined based on identifying the high-level syntax element associated with the video sequence. The video sequence is decoded using the maximum transform size based on determining the maximum transform size associated with the video sequence. The video sequence is transmitted based on decoding the video sequence using the maximum transform size.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: October 26, 2021
    Assignee: TENCENT AMERICA LLC
    Inventors: Xin Zhao, Xiang Li, Shan Liu
  • Patent number: 11159792
    Abstract: A method, computer program, and computer system is provided for video coding. Video data comprising a chroma component and a luma component is received. Luma samples are extracted from the luma component of the received video data. The chroma component is filtered based on the extracted luma samples using a cross-component adaptive loop filter (CC-ALF). Coefficients associated with the CC-ALF are constrained to be less than a sum of a bit-depth value associated with the luma samples and a positive offset value.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: October 26, 2021
    Assignee: TENCENT AMERICA LLC
    Inventors: Xiang Li, Xin Zhao, Shan Liu, Guichun Li, Xiaozhong Xu, Yixin Du
  • Patent number: 11155546
    Abstract: The present disclosure relates to 4,6,7-trisubstituted 1,2-dihydropyrrolo[3,4-c]pyridin/pyrimidin-3-one derivatives, and their preparations and medicinal use. Specifically, the present disclosure discloses a compound of formula (I) or a pharmaceutically acceptable salt, stereoisomer, solvate or prodrug thereof, and a preparation method and use thereof, wherein the definition of each group is as described in the specification and claims.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: October 26, 2021
    Assignees: SHANGHAI HAIYAN PHARMACEUTICAL TECHNOLOGY CO., LTD., YANGTZE RIVER PHARMACEUTICAL GROUP CO., LTD.
    Inventors: Shuchun Guo, Fusheng Zhou, Xiang Chen, Jinzhu Zhao, Dong Huang, Jing Xie, Changjiang Qiao, Wan He, Kai Zhang, Xi Chen, Jiong Lan