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:
Apr. 22, 2008
Filed:
Apr. 20, 2006
Toshifumi Kumano, Kanagawa, JP;
Toshifumi Kumano, Kanagawa, JP;
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Abstract
Embodiments of the invention provide a recording method capable of improving reliability of write data in a magnetic disk drive employing the servo area data system. In a magnetic disk drive according to one embodiment, vibration of a head/slider can be detected with a vibration sensor attached to a head support mechanism. Writing of user data is started from a data area in a track. An abnormal vibration signal is generated by detecting vibration of the head/slider at a colliding position, and an operation for writing user data is interrupted in response to the abnormal vibration signal. After the data sector with the write operation interrupted therein reaches a position of a write head in association with rotation of the magnetic disk as indicated by the line representing a relative operating direction of the write head relative to the track of the write head, the operation for writing the interrupted user data is restarted from the following data sector as indicated by the colliding position.