Patents by Inventor SHU-JUN FU

SHU-JUN FU 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).

  • Vision correction method for tool center point of a robot manipulator
    Patent number: 9043024
    Abstract: A vision correction method for establishing the position of a tool center point (TCP) for a robot manipulator includes the steps of: defining a preset position of the TCP; defining a preset coordinate system TG with the preset position of the TCP as its origin; capturing a two-dimensional picture of the preset coordinate system TG to establish a visual coordinate system TV; calculating a scaling ratio ? of the vision coordinate system TV relative to the preset coordinate system TG; rotating the TCP relative to axes of the preset coordinate system TG; capturing pictures of the TCP prior to and after rotation; calculating the deviation ?P between the preset position and actual position of the TCP; correcting the preset position and corresponding coordinate system TG using ?P, and repeating the rotation through correction steps until ?P is less than or equal to a maximum allowable deviation of the robot manipulator.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: May 26, 2015
    Assignees: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Long-En Chiu, Shu-Jun Fu, Gang Zhao
  • VISION CORRECTION METHOD FOR TOOL CENTER POINT OF A ROBOT MANIPULATOR
    Publication number: 20130035791
    Abstract: A vision correction method for establishing the position of a tool center point (TCP) for a robot manipulator includes the steps of: defining a preset position of the TCP; defining a preset coordinate system TG with the preset position of the TCP as its origin; capturing a two-dimensional picture of the preset coordinate system TG to establish a visual coordinate system TV; calculating a scaling ratio ? of the vision coordinate system TV relative to the preset coordinate system TG; rotating the TCP relative to axes of the preset coordinate system TG; capturing pictures of the TCP prior to and after rotation; calculating the deviation ?P between the preset position and actual position of the TCP; correcting the preset position and corresponding coordinate system TG using ?P, and repeating the rotation through correction steps until ?P is less than or equal to a maximum allowable deviation of the robot manipulator.
    Type: Application
    Filed: March 8, 2012
    Publication date: February 7, 2013
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD
    Inventors: LONG-EN CHIU, SHU-JUN FU, GANG ZHAO