Patents by Inventor Unkyong Hand

Unkyong Hand 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 reducing seek acoustics in a disk drive using feedback during large current transitions
    Patent number: 7082010
    Abstract: A method and apparatus for reducing seek acoustics in a disk drive using feedback during large current transitions is provided. A desired transition profile, which uses feedback, is followed in order to smoothen transitions of a commanded current profile that is supplied to a VCM for moving a head relative to a disk surface during a seek operation. Linear interpolation is used to provide feedback for following the desired transition profile.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: July 25, 2006
    Assignee: Maxtor Corporation
    Inventors: Fred Hansen, Unkyong Hand, Fernando Zayas