Recording circuit

Details Recording circuit Recording circuit

1979-09-11

1982-09-14

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of biasing or erasing

360 68, G11B 547, G11B 502

Patent

active

043498485

ABSTRACT:
A recording circuit has a multi-channel recording head, impedance elements provided between one ends of the respective channels of the recording head and a ground circuit, and a bias oscillator for feeding a first bias current to one of the channels and a second bias current to another channel, with the phrases in the z circuits reversed. Since these currents have opposite phases, electromagnetic waves radiated from bias supply paths are cancelled each other.

REFERENCES:
patent: 3381098 (1968-01-01), Pezirtzoglou
patent: 3394234 (1968-07-01), Grace
patent: 3480739 (1969-11-01), Kinkel
patent: 3526727 (1970-09-01), Rziner et al.
patent: 3585312 (1971-06-01), Heizer
patent: 3621148 (1971-11-01), Johnson
J. Somerset Murray, Tape Recorder Circuits, Nov. 1962, pp. 531-534.

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