Dynamic magnetic information storage or retrieval – General recording or reproducing – Specifics of the amplifier
Patent
1983-12-20
1986-02-04
Canney, Vincent P.
Dynamic magnetic information storage or retrieval
General recording or reproducing
Specifics of the amplifier
360137, G11B 502, G11B 500
Patent
active
045689873
ABSTRACT:
Disclosed is a circuit arrangement having an amplifier with first and second input terminals which are adapted to be coupled to a playback head, wherein the first input terminal of the amplifier is coupled through a first circuit section of a conductive pattern to a first terminal of the playback head and the second input terminal of the amplifier is coupled through a second circuit section of the conductive pattern to a second terminal of the playback head. The first and second circuit sections (3, 4) are arranged to insulatively cross each other at an intersection (6) to form a figure eight pattern having two loop sections of substantially equal areas to equalize the amounts of currents which are oppositely respectively induced in the first and second loop sections by an externally generated magnetic flux.
REFERENCES:
patent: 2584984 (1952-02-01), Camras
patent: 3215995 (1965-11-01), Sierra
patent: 3705954 (1972-12-01), Camras
patent: 4349848 (1982-09-01), Ishii et al.
"A Replay Amplifier Using Integrated Circuits" by G. Corinth, Funkschau, vol. 47, #5, pp. 75-76.
Canney Vincent P.
Victor Company of Japan , Limited
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