Patents by Inventor Yi-Len Chen

Yi-Len 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).

  • System and method for calibrating tool center point of robot
    Patent number: 10926414
    Abstract: A system for calibrating tool center point of robot is provided, which may include a first image sensor, a second image sensor, and a controller. The first image sensor may have a first image central axis. The second image sensor may have a second image central axis not parallel to the first image central axis, and intersect the first image central axis at an intersection point. The controller may control a robot to repeatedly move a tool center point thereof between the first and the second image central axis. The controller may record a calibration point including the coordinates of the joints of the robot when the tool center point overlaps the intersection point, and then move the tool center point and repeat the above steps to generate several calibration points, whereby the controller may calculate the coordinate of the tool center point according to the calibration points.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: February 23, 2021
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Cheng-Kai Huang, Yeou-Bin Guu, Yi-Len Chen, Chwen-Yi Yang, Jan-Hao Chen
  • SYSTEM AND METHOD FOR CALIBRATING TOOL CENTER POINT OF ROBOT
    Publication number: 20190099887
    Abstract: A system for calibrating tool center point of robot is provided, which may include a first image sensor, a second image sensor, and a controller. The first image sensor may have a first image central axis. The second image sensor may have a second image central axis not parallel to the first image central axis, and intersect the first image central axis at an intersection point. The controller may control a robot to repeatedly move a tool center point thereof between the first and the second image central axis. The controller may record a calibration point including the coordinates of the joints of the robot when the tool center point overlaps the intersection point, and then move the tool center point and repeat the above steps to generate several calibration points, whereby the controller may calculate the coordinate of the tool center point according to the calibration points.
    Type: Application
    Filed: December 18, 2017
    Publication date: April 4, 2019
    Inventors: Cheng-Kai Huang, Yeou-Bin Guu, Yi-Len Chen, Chwen-Yi Yang, Jan-Hao Chen