Head positioning control system

Details Head positioning control system Head positioning control system

1995-04-28

1997-08-26

Psitos, A.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7705, G11B 5596

Patent

active

056616171

ABSTRACT:
A head positioning control system applied to a magnetic disk unit in which a positioning operation is carded out with reference to a history of past positioning errors stored in memory. A control unit determines whether or not the head is on-track by comparing past position error signals stored in memory to current position signals. The target position is compensated according to the past position error when the target position is designated.

REFERENCES:
patent: 4679103 (1987-07-01), Workman
patent: 5153789 (1992-10-01), Bernett et al.
patent: 5187620 (1993-02-01), Notake et al.
patent: 5208711 (1993-05-01), Kitamura et al.
patent: 5307330 (1994-04-01), Okamura

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