Patents by Inventor Zhen-Guo Sun

Zhen-Guo Sun 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).

  • Memory card control apparatus and protection method thereof
    Patent number: 8032777
    Abstract: A control apparatus for accessing a memory card includes a bus, a detecting circuit, and an adjusting circuit. The bus is regarded as a signal transmission line between the control apparatus and the memory card. The bus has a power signal transmission line for providing the memory card with a power signal. The detecting circuit detects an operating status of the control apparatus and generates an indication signal when the operating status exceeds a predetermined operating range. The adjusting circuit is coupled to the bus and detecting circuit, and is utilized for adjusting a current passing through the power signal transmission line according to the indication signal without closing the power signal transmission line thereby making the operating status operated within the predetermined operating range.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: October 4, 2011
    Assignee: Realtek Semiconductor Corp.
    Inventors: An-Ming Lee, Zhen-Guo Sun, Ying-Hui Zhu, Chih-Ching Chien
  • MEMORY CARD CONTROL APPARATUS AND PROTECTION METHOD THEREOF
    Publication number: 20080148077
    Abstract: A control apparatus for accessing a memory card includes a bus, a detecting circuit, and an adjusting circuit. The bus is regarded as a signal transmission line between the control apparatus and the memory card. The bus has a power signal transmission line for providing the memory card with a power signal. The detecting circuit detects an operating status of the control apparatus and generates an indication signal when the operating status exceeds a predetermined operating range. The adjusting circuit is coupled to the bus and detecting circuit, and is utilized for adjusting a current passing through the power signal transmission line according to the indication signal without closing the power signal transmission line thereby making the operating status operated within the predetermined operating range.
    Type: Application
    Filed: December 13, 2007
    Publication date: June 19, 2008
    Inventors: An-Ming Lee, Zhen-Guo Sun, Ying-Hui Zhu, Chih-Ching Chien