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.:

US 7046477 B1

PDF
Full Text
Expired
Date of Patent:
May. 16, 2006

Filed:

Dec. 02, 2004
Applicant:

Satoshi Shibata, Ome, JP;

Inventor:

Satoshi Shibata, Ome, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/596 (2006.01);
U.S. Cl.
CPC ...
Abstract

A main controller, such as a CPU, causes a runout detector to relearn a runout component using as an initial value a learned value for a runout component of a disk runout that may occur as a disk rotates, the learned value being acquired during manufacture of a disk drive. The learned value for the runout component used as the initial value is saved to a nonvolatile storage device. The main controller calculates a disk shift amount on the basis of a runout component obtained through relearning (that is, a relearned value) and the learned value acquired during the manufacture of the disk drive and used as the initial value.


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Shibata, Satoshi. (2006). Apparatus and method for calculating disk shift amount in disk drive (U.S. Patent No. 7046477). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7046477

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