Servo control gain correction method of disk recording system

Details Servo control gain correction method of disk recording system Servo control gain correction method of disk recording system

1995-11-17

1998-06-30

Sircus, Brian

Electricity: motive power systems

Positional servo systems

Adaptive or optimizing systems including 'bang-bang' servos

31856822, 360 7804, G11B 5596

Patent

active

057739480

ABSTRACT:
A servo control method of a disk recording system enhanced with a servo control gain correction method. In a disk recording system for reading and writing information upon a disk recording medium by driving an actuator, the system contemplates supplying a given reference current to the actuator and calibrating a current moving distance of the actuator on the disk recording medium while it is rotated at a constant speed during a reference time, obtaining a distance difference between a given reference moving distance and the current moving distance, and obtaining a correction gain of the actuator in proportion to a given reference direct current gain value from the distance difference. The actuator is then driven in correspondence to the correction gain upon moving a head to a desired target position to read or write data on the disk recording medium.

REFERENCES:
patent: 5189571 (1993-02-01), Murphy et al.
patent: 5206570 (1993-04-01), Hargarten et al.
patent: 5305160 (1994-04-01), Funches et al.
patent: 5333083 (1994-07-01), Nakano
patent: 5369345 (1994-11-01), Phan et al.
patent: 5404255 (1995-04-01), Kobayashi et al.
patent: 5457587 (1995-10-01), Suzuki

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