Patents by Inventor Chen-Ping Chang

Chen-Ping Chang 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).

  • Automobile bi-direction remote control transmission circuitry
    Patent number: 6636171
    Abstract: An automobile remote control circuitry. There are wireless transmission circuitry and wireless receiving circuitry each on the remote control itself and the circuitry inside the automobile. The special feature: the wireless transmission circuitry and wireless receiving circuitry apply the same specification of LO base band frequency circuitry. Based on above structure, it can reduce the number of components used in the bi-direction remote control, lower the total component cost and easier in manufacture processes.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: October 21, 2003
    Inventor: Chen-Ping Chang
  • Automobile bi-direction remote control transmission circuitry
    Publication number: 20020093448
    Abstract: An automobile remote control circuitry. There are wireless transmission circuitry and wireless receiving circuitry each on the remote control itself and the circuitry inside the automobile. The special feature: the wireless transmission circuitry and wireless receiving circuitry apply the same specification of LO base band frequency circuitry. Based on above structure, it can reduce the number of components used in the bi-direction remote control, lower the total component cost and easier in manufacture processes.
    Type: Application
    Filed: January 16, 2001
    Publication date: July 18, 2002
    Inventor: Chen-Ping Chang