Patents by Inventor Po-Chuan Shih

Po-Chuan Shih 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).

  • Method of Switching Functions of a Device without Attaching and Detaching the Device
    Publication number: 20090217304
    Abstract: According to different VID/PIDs stored in a device descriptor of a USB composite device, various functions and corresponding drivers are assigned and switched. Therefore, the switches of functions are achieved without detaching and attaching the USB composite device. Possible problems while switching operation systems of different platforms are overcome. And the high cost in embedding various drivers into a mainframe is reduced.
    Type: Application
    Filed: May 5, 2008
    Publication date: August 27, 2009
    Inventors: Po-Chuan Shih, Chen-Pang Hsu