Patents by Inventor Guo-Yuan Ma

Guo-Yuan Ma 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 ESTABLISHING COMMUNICATION BETWEEN A USB DEVICE AND A HOST
    Publication number: 20060143319
    Abstract: A method for establishing communication between a USB having a first memory device and a second memory device and a host includes reading first USB identification data stored in the first memory device, determining if the USB device can communicate with the host based on the first USB identification data, and reading second USB identification data stored in the second memory device for establishing communication between the USB device and the host if the USB device cannot communicate with the host based on the first USB identification data.
    Type: Application
    Filed: August 25, 2005
    Publication date: June 29, 2006
    Inventors: Hung-Yuan Hsu, Shih-Feng Huang, Chien-Hsing Hsieh, Ching-Lin Chung, Guo-Yuan Ma
  • Reset-pulse generator
    Patent number: 6876237
    Abstract: A reset pulse generator. The CPU generates an oscillating disable signal after initialization. The oscillating circuit is coupled to the CPU to output a sequence of reset pulses to the CPU. The oscillating disable circuit is coupled to the oscillating circuit for disabling the oscillating circuit and initiating normal mode CPU operation when the oscillating disable signal is received.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: April 5, 2005
    Assignee: Pixart Imaging, Inc.
    Inventors: Hsuan-Hsien Lee, Chih-Hung Lu, Guo-Yuan Ma, Jin-Hsin Yang
  • Reset-pulse generator
    Publication number: 20040095173
    Abstract: A reset pulse generator. The CPU generates an oscillating disable signal after initialization. The oscillating circuit is coupled to the CPU to output a sequence of reset pulses to the CPU. The oscillating disable circuit is coupled to the oscillating circuit for disabling the oscillating circuit and initiating normal mode CPU operation when the oscillating disable signal is received.
    Type: Application
    Filed: October 31, 2003
    Publication date: May 20, 2004
    Inventors: Hsuan-Hsien Lee, Chih-Hung Lu, Guo-Yuan Ma, Jin-Hsin Yang