Track-following servo for disk drive with multiple reference win

Details Track-following servo for disk drive with multiple reference win Track-following servo for disk drive with multiple reference win

1987-03-10

1989-06-13

Faber, Alan

Dynamic magnetic information storage or retrieval

General recording or reproducing

Recording-or erasing-prevention

360 7702, 369 43, G11B 1504, G11B 5596

Patent

active

048397512

ABSTRACT:
Disclosed is a Fine positioning arrangement for track-follow servo means in a disk drive arrangement wherein servo head output is processed logically to indicate violation by the head of a near-boundry or a far-boundry for prescribed times to indicate whether the transducer is truly "on-center" or not and to logically exclude noise and other error conditions that might compromise this indication.

REFERENCES:
patent: 4553182 (1985-11-01), Narita
patent: 4734851 (1988-03-01), Director

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