Storage apparatus, seek control method and program

Details Storage apparatus, seek control method and program Storage apparatus, seek control method and program

2007-10-02

2007-10-02

Duda, Rina (Department: 2837)

Electricity: motive power systems

Positional servo systems

C318S609000, C318S610000, C318S432000, C360S075000, C360S078010

Reexamination Certificate

active

11434967

ABSTRACT:
A movement controlling unit performs movement control of a head toward a target track on a magnetic disk medium driving a head actuator, and a position controlling unit performs position control of the head actuator in accordance with proportional integral calculations such that a deviation of a head position relative to a track center is eliminated when the moving head arrives at the target track. A gain retaining unit retains an integral gain of the proportional integral calculations in an increased state during a predetermined retention time from the start of the position control, and a gain switching unit switches the increased integral gain smoothly to the original integral gain when the retention time has elapsed.

REFERENCES:
patent: 5377058 (1994-12-01), Good et al.
patent: 5994868 (1999-11-01), Takeuchi et al.
patent: 6628581 (2003-09-01), Tsukahara et al.
patent: 6898035 (2005-05-01), Chainer et al.
patent: 2004/0190397 (2004-09-01), Kuwahara et al.
patent: 5-041048 (1993-02-01), None
patent: 10-125020 (1998-05-01), None

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