Dynamic magnetic information storage or retrieval – General recording or reproducing – Specifics of equalizing
Patent
1980-02-01
1981-10-20
Canney, Vincent P.
Dynamic magnetic information storage or retrieval
General recording or reproducing
Specifics of equalizing
360 68, G11B 545, G11B 502
Patent
active
042964440
ABSTRACT:
To simplify coupling of a video recording transducer to a recording network, and to improve the fidelity of the signals as actually recorded with respect to the signals applied to the recording network, an amplifier, preferably a current amplifier including emitter-coupled transistors, is connected between a current-supplied compensating network and the transducer, the connection being through a short cable, preferably a coaxial cable which has a length substantially less than the wave length of the signals to be recorded, so that the overall response of the compensating network-amplifier-cable-transducer will be essentially linear with respect to the signals to be recorded.
REFERENCES:
patent: 2867693 (1959-01-01), Raisbeck
patent: 3007010 (1961-10-01), Erath et al.
patent: 3188616 (1965-06-01), Simon
patent: 3316360 (1967-04-01), Coleman, Jr. et al.
patent: 3524017 (1970-08-01), Pezirtzoglou
patent: 3927420 (1975-12-01), Hayashi et al.
"Electromagnetic Waves & Radiating Systems"-E. C. Jordan, Prentice-Hall Electrical Engr. Series, Eighth Printing, Jul. 1962, pp. 232 & 233.
Canney Vincent P.
Robert & Bosch GmbH
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