Patents by Inventor Hung-Mao Chang

Hung-Mao 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).

  • OPERATION METHOD OF WIRELESS POINTING INPUT APPARATUS
    Publication number: 20080204413
    Abstract: An operation method of a wireless pointing input apparatus is provided. The operation method includes following steps. The displacement vector of the wireless pointing input apparatus is detected with a resolution. The displacement vector of the wireless pointing input apparatus is transmitted to a host in a wireless way every a time interval. The time interval is decreased correspondingly if the resolution is increased. Or, the time interval is increased correspondingly if the resolution is decreased.
    Type: Application
    Filed: February 27, 2007
    Publication date: August 28, 2008
    Applicant: INTEGRATED SYSTEM SOLUTION CORP.
    Inventors: Hsin-Ju Wu, Hung-Mao Chang, Hisn-Ling Chu, Albert Chen
  • Method of data transferring for bluetooth mouse
    Publication number: 20070273650
    Abstract: The present invention discloses a method of data transferring for a Bluetooth mouse, wherein the time interval between data transmissions is adjusted according to the coordinate displacement values created by the movements of the mouse; before displacement detection and data transference, the method firstly checks whether the current data transfer rate is at a higher value or a lower value and then determines whether the time interval with a higher transfer frequency is to be reduced to the time interval with a lower transfer frequency.
    Type: Application
    Filed: May 25, 2006
    Publication date: November 29, 2007
    Inventors: Hsin-Ju Wu, Hung-Mao Chang, Hsin-Ling Chu, Albert Chen