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:
Sep. 12, 2006
Filed:
Dec. 11, 2002
Yu Sun, Fremont, CA (US);
Lin Guo, Milpitas, CA (US);
Don Brunnett, Pleasanton, CA (US);
Georgie Tan, Singapore, SG;
John Purkett, Longmont, CO (US);
Yu Sun, Fremont, CA (US);
Lin Guo, Milpitas, CA (US);
Don Brunnett, Pleasanton, CA (US);
Georgie Tan, Singapore, SG;
John Purkett, Longmont, CO (US);
Maxtor Corporation, Longmont, CO (US);
Abstract
A method and apparatus for determining embedded runout correction values when self-servo writing or partial self-servo writing is disclosed. In one embodiment, a disk surface, which has servo information written thereon, is provided. The servo information is grouped intoservo sectors andservo sectors, and theservo sectors and theservo sectors form a plurality of tracks. A read head servos on theservo sectors associated with a track. Both position error signals due to repeatable runout for theservo sectors and information related to position error signals due to repeatable runout for theservo sectors are determined, while servoing on theservo sectors. Embedded runout correction values for theservo sectors and theservo sectors are calculated.