Patents by Inventor Philip S. Weilbacher

Philip S. Weilbacher 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).

  • Digital servo control system for use in disk drives, including sample integrity tester for reducing effects of spurious sampled position values
    Patent number: 5602689
    Abstract: A servo control system provides adaptive compensation for a variety of tracking and seek problems found in disk drives. The servo control system is ideally implemented in digital form for accuracy, speed and compactness. A first embodiment includes two modes, a tracking (or position) mode and a seek (or velocity) mode, each mode employing a variety of compensation functions. A second embodiment includes a single comprehensive control system which functions during both tracking and seek operations.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: February 11, 1997
    Assignee: Rodime PLC
    Inventors: Ronald J. Kadlec, Paul H. Kelley, Philip S. Weilbacher