Patents by Inventor Jum Yong Cho

Jum Yong Cho 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 and apparatus for controlling reproduction speed of an optical disk
    Patent number: 7800995
    Abstract: A method and apparatus for controlling reproduction speed of an optical disk are provided. The method for controlling reproduction speed of an optical disk includes checking whether a read command has been received, and examining whether the received read command is intended for performance evaluation based on the number of backward track jumps of a laser beam irradiated on the optical disk. The method and apparatus for controlling reproduction speed of an optical disk provide designed read performance when an external host executes a performance test.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: September 21, 2010
    Assignee: Hitachi-LG Data Storage Korea, Inc.
    Inventor: Jum Yong Cho