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:
Feb. 02, 2010
Filed:
Jan. 31, 2007
Yukio Abe, Kawasaki, JP;
Takeshi Hara, Kawasaki, JP;
Mitsuo Kamimura, Kawasaki, JP;
Shunji Saitoh, Higashine, JP;
Yukio Abe, Kawasaki, JP;
Takeshi Hara, Kawasaki, JP;
Mitsuo Kamimura, Kawasaki, JP;
Shunji Saitoh, Higashine, JP;
Toshiba Storage Device Corporation, Tokyo, JP;
Abstract
A rewrite determining unit of a hard disk apparatus acquires a servo signal that includes an offtrack amount corresponding to each servo frame from a position information memory, and determines whether a write fault has occurred based on the servo signal. If a write fault has occurred, the rewrite determining unit determines a rewrite sector count, and a write controller controls a hard disk controller so that rewriting is performed to correspond to the rewrite sector count determined by the rewrite determining unit.