Patents by Inventor Ling-Hao Yu

Ling-Hao Yu 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).

  • Tilt control method of near-field optical system
    Patent number: 8050162
    Abstract: A tilt control method for a near-field optical disc drive is provided. A gap between a lens and a disc is estimated. A tilt compensation for the lens is estimated according to a tilt signal when the lens is within a far-field region. A coarse tilt control is performed on the lens according to the tilt compensation when the lens is within the far-field region.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: November 1, 2011
    Assignee: Lite-On It Corporation
    Inventors: Wei-Chih Lin, Ling-Hao Yu, Chen-I Kuo
  • TILT CONTROL METHOD OF NEAR-FIELD OPTICAL SYSTEM
    Publication number: 20110141864
    Abstract: A tilt control method for a near-field optical disc drive is provided. A gap between a lens and a disc is estimated. A tilt compensation for the lens is estimated according to a tilt signal when the lens is within a far-field region. A coarse tilt control is performed on the lens according to the tilt compensation when the lens is within the far-field region.
    Type: Application
    Filed: May 21, 2010
    Publication date: June 16, 2011
    Applicant: LITE-ON IT CORPORATION
    Inventors: Wei-Chih LIN, Ling-Hao Yu, Chen-I Kuo