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:
Oct. 10, 2006
Filed:
Jun. 28, 2002
Reed D. Hanson, Chaska, MN (US);
Nathaniel B. Wilson, Edmond, OK (US);
John C. Morris, Minneapolis, MN (US);
Timothy F. Ellis, Tonka Bay, MN (US);
Reed D. Hanson, Chaska, MN (US);
Nathaniel B. Wilson, Edmond, OK (US);
John C. Morris, Minneapolis, MN (US);
Timothy F. Ellis, Tonka Bay, MN (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
An apparatus and method for tracking radially-dependent repeatable run-out in a disc drive having a servo loop for positioning a head over a rotating disc is provided. The disc includes multiple tracks. Radially-dependent repeatable run-out control components for at least a subset of the multiple tracks are first determined. Data representative of the radially-dependent repeatable run-out control components for the subset of the multiple tracks is then stored. The stored data representative of the radially-dependent repeatable run-out control components is retrieved before settling on the target track, and subsequently used to follow the selected track.