Tape recorder

Details Tape recorder Tape recorder

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

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