Dynamic magnetic information storage or retrieval – General recording or reproducing – Specifics of biasing or erasing
Patent
1993-11-17
1995-01-31
Canney, Vincent P.
Dynamic magnetic information storage or retrieval
General recording or reproducing
Specifics of biasing or erasing
G11B 503
Patent
active
053863275
ABSTRACT:
The recording and reproducing apparatus for recording and reproducing one field or a plurality of fields of recorded signals in a predetermined track position of a disc-type recording medium comprises an erasing circuit to erase the recorded signals recorded on the track, a tracking fine control mechanism for fine adjustment of a head arranged nearly opposite to the track, and an erasure control circuit to make the erasing circuit to execute a predetermined erasing operation to erase the recorded signals on the track on a basis of the head position after the tracking fine control mechanism executes the fine adjustment of tracking, and the erasure control circuit is designed to execute the erasing operation by the erasing circuit after executing the tracking fine control and displaying the recorded signals on a reproducing monitor for a predetermined time, in order to erase the predetermined recorded signals on the track without mis-erasure.
REFERENCES:
patent: 2898408 (1959-08-01), Folse
patent: 4581661 (1986-04-01), Uehara et al.
patent: 5062009 (1991-10-01), Yamagata et al.
Canney Vincent P.
Canon Kabushiki Kaisha
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