Patents by Inventor Chiang Shih Chung

Chiang Shih Chung 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).

  • Apparatus and method for layer jump braking control in an optical drive
    Patent number: 7489602
    Abstract: An apparatus and method for layer jump braking control is disclosed. The apparatus is applied to an optical drive and generates a non-fixed braking signal according to a focusing error signal. The non-fixed braking signal is provided to a driver for outputting a corresponding driving force, thereby controlling a pick up head of the optical drive to perform a layer jump braking process. By using the non-fixed braking signal, the disadvantage of the conventional fixed braking signal, which cannot adapt to variations of optical disks and is subject to layer jump failure, can be avoided.
    Type: Grant
    Filed: May 20, 2005
    Date of Patent: February 10, 2009
    Assignee: Realtek Semiconductor Corp.
    Inventor: Chiang Shih Chung
  • Apparatus and method for layer jump braking control in an optical drive
    Publication number: 20050259529
    Abstract: An apparatus and method for layer jump braking control is disclosed. The apparatus is applied to an optical drive and generates a non-fixed braking signal according to a focusing error signal. The non-fixed braking signal is provided to a driver for outputting a corresponding driving force, thereby controlling a pick up head of the optical drive to perform a layer jump braking process. By using the non-fixed braking signal, the disadvantage of the conventional fixed braking signal, which cannot adapt to variations of optical disks and is subject to layer jump failure, can be avoided.
    Type: Application
    Filed: May 20, 2005
    Publication date: November 24, 2005
    Inventor: Chiang Shih Chung