Patents by Inventor Chang Te-Yi

Chang Te-Yi 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).

  • Power control device for GPS receiver and method of controlling power thereof
    Publication number: 20080012759
    Abstract: A power control device for selectively outputting power to a GPS receiver includes a position sensor and a power control module. The power control module determines whether to output power to the GPS receiver according to the variation quantity of the position information after receiving the position information. Therefore, as long as the GPS receiver remains still, the GPS receiver can be turned off since there is no need to receive the position information.
    Type: Application
    Filed: July 11, 2007
    Publication date: January 17, 2008
    Applicant: BEHAVIOR TECH COMPUTER CORP.
    Inventor: Chang Te-Yi