Patents by Inventor Xiaoqin Zhao

Xiaoqin 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).

  • Vehicle clutch
    Patent number: 11920639
    Abstract: A vehicle clutch, comprising a primary clutch (1).
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: March 5, 2024
    Assignee: TAIAN SHENGTAI AUTO PARTS CO., LTD.
    Inventors: Xiaoqin Wu, Chuanchang Zhao, Hsingchang Kuo, Defu Xue
  • Camera automatic calibration method and optical motion capture system
    Patent number: 10666934
    Abstract: A camera automatic calibration method includes determining a camera to be recalibrated; and determining a point-to-point matching relationship between a first projection point set and a first collection point set. The first projection point set is formed in a camera coordinate system when first spatial coordinates, formed by capturing a plurality of test points using cameras other than the camera to be recalibrated, are projected onto the camera to be recalibrated, and the first collection point set is formed by capturing the test points using the camera to be recalibrated. The method includes calculating a distance difference between each point in the first projection point set and a matching point in the first collection point set according to the point-to-point matching relationship; obtaining a new calibration parameter of the camera to be recalibrated; and updating the current calibration parameter of the camera to be recalibrated with the new calibration parameter.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: May 26, 2020
    Assignee: SHENZHEN REALIS MULTIMEDIA TECHNOLOGY CO., LTD.
    Inventors: Yue Wang, Xiaoqin Zhao, Qiuzi Xu