The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 08, 2006
Filed:
Apr. 23, 2002
Applicants:
Stan Shepherd, Morgan Hill, CA (US);
Nathan J. Hays, San Francisco, CA (US);
Inventors:
Stan Shepherd, Morgan Hill, CA (US);
Nathan J. Hays, San Francisco, CA (US);
Assignee:
Maxtor Corporation, Longmont, CO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 5/09 (2006.01); G11B 21/02 (2006.01); G11B 5/596 (2006.01);
U.S. Cl.
CPC ...
Abstract
A disk drive includes a head and a disk, spiral patterns are located on the disk, and the disk drive self-writes servo patterns on the disk using the spiral patterns as a reference for servoing the head. In an embodiment, the disk drive uses preliminary servo patterns to determine repeatable runout of the spiral patterns. In another embodiment, the disk drive reads each spiral pattern with multiple timing windows.