Patents by Inventor Yong-swon Lee

Yong-swon Lee 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 compensating for torque change in seek servo
    Publication number: 20050134997
    Abstract: A method and apparatus to compensate for a difference between an actual torque constant and a modeling torque constant used for servo design in a disc drive. The method has operations of: performing predetermined test seeks with respect to test seek positions into which a disc is divided; obtaining torque compensation constants from the test seeks; storing the torque compensation constants in a torque compensation constant table; and compensating for a gain of a seek control loop at a position where a seek is performed in a seek mode, using the torque compensation constants stored in the torque compensation constant table.
    Type: Application
    Filed: December 3, 2004
    Publication date: June 23, 2005
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-hoon Chu, Yong-swon Lee, Cheol-hoon Park