Patents by Inventor Shao-Yu Chou

Shao-Yu Chou 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: 6566847
    Abstract: A charge pump voltage regulating circuit which uses a constant current generator and a second current generator, controlled by the output voltage of the charge pump circuit. The current from the constant current generator is divided between the input to a current controlled oscillator and the second current generator. When the output voltage of the charge pump circuit increases the current in the second current generator increases, the current flowing into the current controlled oscillator decreases, the frequency of the clock signals supplied to the charge pump circuit decreases, and the output voltage of the charge pump circuit decreases. When the output voltage of the charge pump circuit decreases the current in the second current generator decreases, the current flowing into the current controlled oscillator increases, the frequency of the clock signals supplied to the charge pump circuit increases, and the output voltage of the charge pump circuit increases.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: May 20, 2003
    Assignee: Taiwan Semiconductor Manufacturing Company
    Inventors: Shao-Yu Chou, Yue-Der Chih, Hung-Wen Chang
  • Publication number: 20020046373
    Abstract: The present invention discloses a memory testing apparatus. The testing apparatus can be embedded on a chip with embedded memory block or a memory chip to reduce the testing time of memory blocks or memory devices. Through the selection of testing modes and the data processing of the processing device, the correctness of the output data of a memory block can be represent with the data state of a verifying data. The data output can be pre-processed and simplified as the verifying data to reduce the test time.
    Type: Application
    Filed: September 30, 1998
    Publication date: April 18, 2002
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: SHAO-YU CHOU, YUE-DER CHIH