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. 20, 2015
Filed:
Jun. 03, 2014
Applicant:
Kabushiki Kaisha Toshiba, Minato-ku, Tokyo, JP;
Inventors:
Takashi Matsuo, Fujisawa, JP;
Takumi Sato, Karnakura, JP;
Assignee:
Kabushiki Kaisha Tosbhia, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/09 (2006.01); G11B 27/36 (2006.01);
U.S. Cl.
CPC ...
G11B 5/09 (2013.01);
Abstract
According to one embodiment, a hard disk drive includes a detecting circuit configured to detect abnormality of a supply voltage. The hard disk drive also includes a refresh controller configured to, when the abnormality of the supply voltage is detected during a data refresh process in sector units to a magnetic disk, finish the data refresh process to a sector after writing of data to a data area is finished, the data area to which the writing is performed when the abnormality of the supply voltage is detected, without stepping over a servo area.