Patents by Inventor Claud L. Blevins

Claud L. Blevins 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).

  • Reduction of high-frequency electromagnetic emission quasi-peaks from disk drives
    Patent number: 7518817
    Abstract: A disk drive having reduced electromagnetic emission quasi-peaks is provided. The repetition rate of servo blocks or data is reduced, spread or otherwise altered. In one embodiment, the number of data zones is increased to achieve an emissions reduction goal. In one embodiment, the disk drive is configured to effectively have one track per zone. In one embodiment, the rotation rate of the disk is varied or the effective data bit density, as detected by the read/write head, is otherwise varied. In one embodiment, servo-sectors are intentionally positioned to vary the length, along the track, of inter-servo intervals.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: April 14, 2009
    Assignee: Maxtor Corporation
    Inventors: Arun Balakrishnan, John VanLaanen, Leo Lopez, John Shaw, Bruce D. Buch, Claud L. Blevins