Dynamic magnetic information storage or retrieval – General recording or reproducing – Specifics of biasing or erasing
Patent
1982-07-20
1985-03-12
Canney, Vincent P.
Dynamic magnetic information storage or retrieval
General recording or reproducing
Specifics of biasing or erasing
G11B 547
Patent
active
045048746
ABSTRACT:
In the disclosed tape recorder, the erasing head normally receives DC current to erase signals previously recorded by a recording/reproducing head, and the recorder housing is adapted to receive an AC erasing current from an external AC generator to supplant the DC current at the erasing head when AC erasure is required.
REFERENCES:
patent: 3354270 (1967-11-01), Smith et al.
patent: 3449529 (1969-06-01), Camras
patent: 3652807 (1972-03-01), Kusich
patent: 3689904 (1972-09-01), Blitchingron Jr.
patent: 3934267 (1976-01-01), Kosaka et al.
patent: 4258402 (1981-03-01), Sato
Canney Vincent P.
Olympus Optical Co,. Ltd.
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