Patents by Inventor Fu Hsiang-Yi

Fu Hsiang-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).

  • Generating tracking control output signals for compensating tracking error signals
    Patent number: 7260042
    Abstract: The present disclosure provides systems and methods for tracking of control and error signals in optical disk drives. Successive square waves are generated as a tracking control output signal, and a tracking error signal is generated as a function of both the tracking control output signal and an offset correction factor. Due to the characteristics of the square wave, more reliable tracking is possible by the use of the square wave.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: August 21, 2007
    Assignee: Lite-On IT Corporation
    Inventors: Hsu Jen-Yu, Fu Hsiang-Yi, Lee Tun-Chieh, Chen Fu-Hsiang, Tsai Yao-Chou
  • Generating tracking control output signals for compensating tracking error signals
    Publication number: 20050007903
    Abstract: The present disclosure provides systems and methods for tracking of control and error signals in optical disk drives. Successive square waves are generated as a tracking control output signal, and a tracking error signal is generated as a function of both the tracking control output signal and an offset correction factor. Due to the characteristics of the square wave, more reliable tracking is possible by the use of the square wave.
    Type: Application
    Filed: June 9, 2004
    Publication date: January 13, 2005
    Inventors: Hsu Jen-Yu, Fu Hsiang-Yi, Lee Tun-Chieh, Chen Fu-Hsiang, Tsai Yao-Chou