Patents by Inventor Cheul Han

Cheul Han 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 writing optical disc
    Publication number: 20070086296
    Abstract: An optical disk writing method including determining a writing scheme for recording information on the optical disc based on received tracking error signals. The method also includes moving an optical pickup across tracks of the optical disc while the optical pickup emits a laser beam, counting a number of the tracking error signal, and determining a storage capacity of the optical disc based on the counted number of tracking error signals.
    Type: Application
    Filed: October 10, 2006
    Publication date: April 19, 2007
    Applicant: HITACHI-LG DATA STORAGE KOREA, INC.
    Inventor: Cheul Han
  • Recording method for optical disc device
    Publication number: 20060262660
    Abstract: An optical disc device recording method, which includes determining whether or not a recording process that records information on a label surface of an optical disc has failed, detecting a recording failure position at which the recording process has failed when the determining step determines the recording process has failed, and resuming the recording process from the detected recording failure position.
    Type: Application
    Filed: April 26, 2006
    Publication date: November 23, 2006
    Applicant: HITACHI-LG DATA STORAGE KOREA, INC.
    Inventor: Cheul Han