Head position control method and disk device

Details Head position control method and disk device Head position control method and disk device

2006-07-11

2006-07-11

Young, Wayne (Department: 2651)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S063000, C360S078040

Reexamination Certificate

active

07075747

ABSTRACT:
A disk device that has displacement of servo signals in the circumference direction and radius direction between a plurality of disks, prevents a drop in performance due to the displacement when the heads are switched. To deal with the displacement in the circumference direction, the sector numbers on the disk are converted by a table for each head. Also the servo gate time is corrected by the table according to the eccentricity of the disk, so the servo signal detection accuracy improves. Also to deal with the displacement in the radius direction, the track numbers on the disk are converted by the table using the difference value based on the reference head.

REFERENCES:
patent: 5784220 (1998-07-01), Nishimura et al.
patent: 5835299 (1998-11-01), Lee et al.
patent: 5859742 (1999-01-01), Takaishi
patent: 5943179 (1999-08-01), Fukushima
patent: 5969895 (1999-10-01), Ueda et al.
patent: 6067206 (2000-05-01), Hull et al.
patent: 6710957 (2004-03-01), Nakasato
patent: 2001/0013984 (2001-08-01), Takaishi
patent: 2001/0022702 (2001-09-01), Takaishi
patent: 2002/0060867 (2002-05-01), Enokida et al.
patent: 673 033 (1995-09-01), None
patent: 9-128915 (1997-05-01), None
patent: 10-97772 (1998-04-01), None
patent: 2000-311454 (2000-11-01), None
patent: 3226499 (2001-08-01), None
patent: 2001-266454 (2001-09-01), None
“Method, System and Interface for Mapping Tracks in No-Id Disk Drives;”IBM Tech. Disclosure Bulletin; vol. 38, No. 12, Dec. 1994; pp. 275-277.

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