Hard disc apparatus and head alignment method

Details Hard disc apparatus and head alignment method Hard disc apparatus and head alignment method

2011-01-04

2011-01-04

Tzeng, Fred (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

Reexamination Certificate

active

07864486

ABSTRACT:
According to one embodiment, a hard disc apparatus comprises a disc, wherein areas between neighboring servo areas are allocated to data areas including data sectors, a head module, and a storage module configured to store head alignment data, wherein the head alignment data are defined for the data areas, and includes information indicating an interval from the servo area to a first data sector, information indicating a data area in one track, a first data sector which is a start sector of the track, and information indicating the presence/absence of a defective sector including a primary defect, and the start sector of a track including the defective sector is a data sector next to the defective sector.

REFERENCES:
patent: 5589998 (1996-12-01), Yu
patent: 5715105 (1998-02-01), Katayama et al.
patent: 5796543 (1998-08-01), Ton-That
patent: 5802584 (1998-09-01), Kool et al.
patent: 5818654 (1998-10-01), Reddy et al.
patent: 6078452 (2000-06-01), Kittilson et al.
patent: 6084739 (2000-07-01), Assouad
patent: 6108158 (2000-08-01), Katayama et al.
patent: 6236528 (2001-05-01), Katayama et al.
patent: 6400523 (2002-06-01), Katayama et al.
patent: 6456451 (2002-09-01), Asano et al.
patent: 6995940 (2006-02-01), Ehrlich
patent: 7106548 (2006-09-01), Ehrlich
patent: 7336438 (2008-02-01), Park et al.
patent: 7405899 (2008-07-01), Ryu et al.
patent: 7529059 (2009-05-01), Ryu et al.
patent: 7542229 (2009-06-01), Yasui et al.
patent: 7602576 (2009-10-01), Yoshida
patent: 2005/0141126 (2005-06-01), Ehrlich et al.
patent: 2005/0237648 (2005-10-01), Ehrlich
patent: H03-168978 (1991-07-01), None
patent: 03-259460 (1991-11-01), None
patent: H04-146573 (1992-05-01), None
patent: 07-45004 (1995-02-01), None
patent: 08-273162 (1996-10-01), None
patent: 2005-25892 (2005-01-01), None
Explanation of Non-English Language References.
Notice of Reasons for Rejection mailed by Japan Patent Office on Jun. 16, 2009 in the corresponding Japanese patent application No. 2008-021903.

Affiliated with

Also associated with

Rating

Hard disc apparatus and head alignment method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hard disc apparatus and head alignment method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hard disc apparatus and head alignment method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2673237