Patents by Inventor Geng-lin Chen

Geng-lin Chen 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).

  • Patent number: 7184361
    Abstract: A method and apparatus for avoiding bi-directional signal fighting of a serial interface is disclosed. The serial peripheral interface includes a clock signal line and a data line. In this method, during normal operation, a first clock signal is received and transformed to output a second clock signal in the clock signal line, wherein the second clock signal has a first duty period. When the output of the data in the data line switches to input, the second clock signal switches to have the second duty period, wherein the second duty period is larger than the first duty period.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: February 27, 2007
    Assignee: Sunplus Technology Co., Ltd.
    Inventors: Yu-Chu Lee, Sheng-Ping Chen, Geng-Lin Chen
  • Publication number: 20060187741
    Abstract: A method and apparatus for avoiding bi-directional signal fighting of a serial interface is disclosed. The serial peripheral interface includes a clock signal line and a data line. In this method, during normal operation, a first clock signal is received and transformed to output a second clock signal in the clock signal line, wherein the second clock signal has a first duty period. When the output of the data in the data line switches to input, the second clock signal switches to have the second duty period, wherein the second duty period is larger than the first duty period.
    Type: Application
    Filed: June 21, 2005
    Publication date: August 24, 2006
    Inventors: Yu-Chu Lee, Sheng-Ping Chen, Geng-Lin Chen
  • Publication number: 20060143366
    Abstract: An apparatus and a system having in-system-programming function are disclosed. The apparatus comprises a non-volatile memory, a controller and a serial interface unit. When the non-volatile memory is to be programmed, the controller will actively catch the program data from an external device via the serial interface unit and save the program data in non-volatile memory. Thus, the programming efficiency is enhanced, an additional programmer is unnecessary, and the production cost can be saved.
    Type: Application
    Filed: May 6, 2005
    Publication date: June 29, 2006
    Inventors: Ying-Chih Yang, Geng-Lin Chen, Jen-Yi Liao
  • Publication number: 20050114579
    Abstract: The present invention provides a system for accessing a plurality of devices by using a single bus and a control apparatus therein. The system comprises a control apparatus, a bus isolator, a shared bus, a first device and a second device. The control apparatus controls to switch between the first device and the second device so as to share the shared bus, and also optionally use the bus isolator to isolate the second device from the shared bus according to whether the first device is selected. Since a plurality of devices is accessed through a single bus, a number of buses as well as a pin count in an integrated circuit can be reduced.
    Type: Application
    Filed: March 26, 2004
    Publication date: May 26, 2005
    Inventors: GENG-LIN CHEN, YING-CHIH YANG, YUAN-NING CHEN
  • Patent number: 6862242
    Abstract: An SRAM control circuit with a power saving function is disclosed, which uses an address comparator to compare a current address and a previous address in an SRAM read operation. When the two addresses are the same, data is outputted directly from a buffer without enabling a memory unit, thereby saving power.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: March 1, 2005
    Assignee: Sunplus Technology Co., Ltd.
    Inventor: Geng-lin Chen
  • Publication number: 20040213069
    Abstract: An SRAM control circuit with a power saving function is disclosed, which uses an address comparator to compare a current address and a previous address in an SRAM read operation. When the two addresses are the same, data is outputted directly from a buffer without enabling a memory unit, thereby saving power.
    Type: Application
    Filed: September 25, 2003
    Publication date: October 28, 2004
    Applicant: Sunplus Technology Co. , Ltd.
    Inventor: Geng-Lin Chen