Method and apparatus for controlling the speed of movement of th

Details Method and apparatus for controlling the speed of movement of th Method and apparatus for controlling the speed of movement of th

1991-05-24

1995-02-21

Psitos, Aristotelis

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7807, 360 7804, G11B 5596

Patent

active

053921747

ABSTRACT:
A method for controlling a speed at which a head of a disk drive apparatus is moved toward a target track of a plurality of tracks disposed on a disk shaped recording medium, comprising the steps of, reproducing a signal recorded on the medium and detecting a current position of the head by using the reproduced signal, obtaining the distance between the current position of the head and the position of the target track, dividing a speed profile representing head speed relative to distance of the head to the target track into a plurality of distance ranges, generating a speed profiled in a range in accordance with the distance to the target track by using an approximation calculation, and controlling a speed of the head toward the target track in accordance with the speed profile.

REFERENCES:
patent: 4931889 (1990-02-01), Osafume
patent: 4937689 (1990-06-01), Seaver et al.
patent: 5021898 (1991-06-01), Sakai et al.
patent: 5065382 (1991-11-01), Seko et al.

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