Patents by Inventor Jung-Huang Huang

Jung-Huang Huang 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).

  • Method for identifying type of optical disk
    Patent number: 7869324
    Abstract: A method for identifying a type of an optical disk includes the steps of: turning on a laser diode of an optical pickup and focusing light emitted from the laser diode on the optical disk; moving the optical pickup to obtain a plurality of servo signals; reading a specific servo signal from the servo signals; and determining the type of the optical disk according to the count of enabled times of the specific servo signal and a corresponding enabled time period.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: January 11, 2011
    Assignee: Sunplus Technology Co., Ltd.
    Inventors: Jung-Huang Huang, Chia-Ming Chang
  • METHOD FOR IDENTIFYING TYPE OF OPTICAL DISK
    Publication number: 20090225637
    Abstract: A method for identifying a type of an optical disk includes the steps of: turning on a laser diode of an optical pickup and focusing light emitted from the laser diode on the optical disk; moving the optical pickup to obtain a plurality of servo signals; reading a specific servo signal from the servo signals; and determining the type of the optical disk according to the count of enabled times of the specific servo signal and a corresponding enabled time period.
    Type: Application
    Filed: June 17, 2008
    Publication date: September 10, 2009
    Inventors: Jung-Huang HUANG, Chia-Ming Chang
  • Layer jump control apparatus and method
    Publication number: 20070127331
    Abstract: A layer jump control apparatus and method is provided to control an optical drive during a layer jump operation. According to the magnitude variations of a focus error signal during a predetermined period, the invention estimates the position and relative velocity of a pickup head and a disk so as to dynamically modify the magnitude of a braking force, causing the optical pickup head to make a stable jump on the target layer, then brake and finally reactivate a closed-loop focus control process without going into an out of lock state.
    Type: Application
    Filed: December 6, 2006
    Publication date: June 7, 2007
    Inventors: Yao-Yu Lee, Ching-Chuan Chen, Jung-Huang Huang