Erasing device

Details Erasing device Erasing device

1990-09-06

1991-08-27

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of biasing or erasing

G11B 547

Patent

active

050438310

ABSTRACT:
An erasing device for erasing a signal recorded on a recording medium on which an audio signal and a video signal are recorded together has a first erasing mode for erasing the audio signal, a second erasing mode for erasing the video signal, and a third erasing mode for erasing both the audio and video signals.

REFERENCES:
patent: 4742404 (1988-05-01), Yunoki
patent: 4766505 (1988-08-01), Nakano et al.
patent: 4772962 (1988-09-01), Tanaka et al.

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