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. 08, 2015
Filed:
Jul. 21, 2014
Applicant:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Inventor:
Michio Yamamoto, Inagi, JP;
Assignee:
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 19/04 (2006.01); G11B 27/36 (2006.01); G11B 5/09 (2006.01); G11B 5/012 (2006.01); G11B 20/12 (2006.01); G11B 20/18 (2006.01);
U.S. Cl.
CPC ...
G11B 27/36 (2013.01); G11B 5/012 (2013.01); G11B 20/1258 (2013.01); G11B 2020/1823 (2013.01);
Abstract
According to one embodiment, a controller in a magnetic disk drive manages the influence, on a first track on a disk, of data writes to tracks within outer and inner adjacent track ranges, using first and second counters associated with the first track. The first and second counters are indicative of the numbers of data writes to tracks within the outer and inner adjacent track ranges, respectively. Based on the values of the first and second counters, the controller reads data from the first track, and rewrites the read data to the first track.