Patents by Inventor Sheryl Suet Ying Chau

Sheryl Suet Ying Chau 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).

  • Touch sensing method and serial manipulator using the same
    Patent number: 11931885
    Abstract: A touch sensing method and a serial manipulator using the same are disclosed. A serial manipulator using the method may detect and localize external torques by obtaining a torque value of each joint of a serial manipulator through a torque sensor at the joint; obtaining a preset joint angle of each joint from the serial manipulator; calculating a Jacobian matrices of the serial manipulator based on the joint angle of the joints; estimating joint torques of the serial manipulator based on the torque value of each joint and the Jacobian matrices; calculating an error between the torque value of each joint and the estimated joint torque corresponding to the joint; and determining a link of the serial manipulator that is connected to the joint with the minimum calculated error as having been touched.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: March 19, 2024
    Assignee: UBKANG (QINGDAO) TECHNOLOGY CO., LTD.
    Inventors: Sheryl Suet Ying Chau, Yang Shen, Chengkun Zhang, Huan Tan
  • TOUCH SENSING METHOD AND SERIAL MANIPULATOR USING THE SAME
    Publication number: 20230133207
    Abstract: A touch sensing method and a serial manipulator using the same are disclosed. A serial manipulator using the method may detect and localize external torques by obtaining a torque value of each joint of a serial manipulator through a torque sensor at the joint; obtaining a preset joint angle of each joint from the serial manipulator; calculating a Jacobian matrices of the serial manipulator based on the joint angle of the joints; estimating joint torques of the serial manipulator based on the torque value of each joint and the Jacobian matrices; calculating an error between the torque value of each joint and the estimated joint torque corresponding to the joint; and determining a link of the serial manipulator that is connected to the joint with the minimum calculated error as having been touched.
    Type: Application
    Filed: October 29, 2021
    Publication date: May 4, 2023
    Inventors: Sheryl Suet Ying Chau, Yang Shen, Chengkun Zhang, Huan Tan