Position control device for positioning magnetic head on selecte

Details Position control device for positioning magnetic head on selecte Position control device for positioning magnetic head on selecte

1990-04-19

1992-08-04

Psitos, Aristotelis

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7702.77.05, 360 7804, 369 32, 369 4429, G11B 555, G11B 2108

Patent

active

051364417

ABSTRACT:
A position control circuit for use in a servo circuit generate a position error signal corresponding to a position error between a head and a selected track of a disk at a time of position control and positions the head on the selected track. The position control circuit includes a) an integrator for integrating the position error, of the position of the head and the position of the selected track, to generate an integrated signal which is one component of the position error signal generated by the position control circuit and b) an integral control circuit for stopping the integral action of the integrator for a predetermined period shorter than a one-track seek time after the position control is initiated.

REFERENCES:
patent: 4679103 (1987-07-01), Workman
patent: 4949201 (1990-08-01), Abed
patent: 4963806 (1990-10-01), Shinohara et al.

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