Magnetic disk apparatus

Details Magnetic disk apparatus Magnetic disk apparatus

1989-06-01

1990-12-25

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7703, G11B 5596

Patent

active

049807846

ABSTRACT:
In the magnetic disk apparatus according to the invention, the latch circuit latches the content of the logic signal provided from the comparative operational circuit at the end of the seek operation and holds the latched content during a track trace operation, and the linear position signal selected to constitute a closed loop positioning system is fixed to that at the end of seek operation for controlling the head position, so that recoverable allowance of the deviation from the center of the desired track (i.e., off-track amount) of the head at the time of the track trace operation can be increased to increase the reliability of seek operation.

REFERENCES:
patent: 4516177 (1985-05-01), Moon et al.
patent: 4524397 (1985-06-01), Chalmers et al.
patent: 4609953 (1986-09-01), Mizuno et al.
Fujitsu Limited, M2361A Mini-Disk Drives Ce Manual, Tokyo, Japan, 1985, pp. 4-68 to 4-87.

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