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:
May. 31, 2006
Masatoshi Ichikawa, Kanagawa, JP;
Akira Kojima, Kanagawa, JP;
Yoshinori Makita, Kanagawa, JP;
Kazunari Kose, Kanagawa, JP;
Masatoshi Ichikawa, Kanagawa, JP;
Akira Kojima, Kanagawa, JP;
Yoshinori Makita, Kanagawa, JP;
Kazunari Kose, Kanagawa, JP;
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Abstract
Embodiments of the invention provide an error recovery scheme that allows a data read/write error in a data storage device to be processed within a short time, and a data storage device that attempts error recovery using the error recovery scheme. In one embodiment, a data storage device conducts an error recovery process for a data access error in accordance with an error recovery procedure having multiple error recovery steps; the data storage device including a head that accesses a data region of a user data storage medium, and a controller that controls the error recovery process by using not only address information of the sector where the access error to the data region has occurred, but also an error recovery log which has address information of the data region and past error recovery information associated with the latter address information.