Patents by Inventor James Shih-Shyn Wu

James Shih-Shyn Wu 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).

  • Thermal error compensation method for machine tools
    Patent number: 8255075
    Abstract: A thermal error compensation method for machine tools is disclosed, which comprises the steps of: disposing at least a thermal sensor at positions neighboring to the at least one heat source of a machine tool; driving the machine tool to operate under a specific operation condition for enabling the at least one heat source to generate heat; generating a thermal signal according to the temperature detected by the at least one thermal sensor; using a heat conducting calculation unit to access the thermal signal and the information relating to the specific operation condition to be used in a calculation for obtaining and thus outputting at least a node temperature; and using an error compensation unit to access the at least one node temperature to be used in a calculation for obtaining thermal error compensation values for the machine tool.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: August 28, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Feng-Ming Ou, James Shih-Shyn Wu
  • THERMAL ERROR COMPENSATION METHOD FOR MACHINE TOOLS
    Publication number: 20100152881
    Abstract: A thermal error compensation method for machine tools is disclosed, which comprises the steps of: disposing at least a thermal sensor at positions neighboring to the at least one heat source of a machine tool; driving the machine tool to operate under a specific operation condition for enabling the at least one heat source to generate heat; generating a thermal signal according to the temperature detected by the at least one thermal sensor; using a heat conducting calculation unit to access the thermal signal and the information relating to the specific operation condition to be used in a calculation for obtaining and thus outputting at least a node temperature; and using an error compensation unit to access the at least one node temperature to be used in a calculation for obtaining thermal error compensation values for the machine tool.
    Type: Application
    Filed: November 25, 2009
    Publication date: June 17, 2010
    Applicant: Industrial Technology Research Institute
    Inventors: FENG-MING OU, James Shih-Shyn Wu