Recording/reproducing apparatus

Details Recording/reproducing apparatus Recording/reproducing apparatus

1997-12-05

1999-11-30

Huber, Paul W.

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

369 4428, G11B 390, G11B 700

Patent

active

059954639

ABSTRACT:
A recording/reproducing apparatus comprises a disk (2) which is rotatably driven, a scratch detection circuit (6) for detecting a scratch in the disk (2) on the basis of a reproduced signal read from the disk (2) through a head (4), and a coarse movement stop control unit (14) for predicting the timing of a scratch which will appear next on the basis of the cycle of scratches detected by the scratch detection circuit (6) and stopping a coarse movement of the head (4) in a period from time immediately before at least the predicted timing to time at which the next appearing scratch passes.

REFERENCES:
patent: 4748610 (1988-05-01), Nakata et al.
patent: 5161141 (1992-11-01), Sawata

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