Video magnetic transducer system with phase correcting network

Details Video magnetic transducer system with phase correcting network Video magnetic transducer system with phase correcting network

1974-08-09

1976-06-29

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of equalizing

G11B 545

Patent

active

039673189

ABSTRACT:
One embodiment of video transducing system supplies a reproduced video signal with compensated amplitude response so as to exhibit a substantial phase advance for recorded half wavelengths less than the thickness of the magnetizable layer, and a phase correcting network is inserted between the playback winding and the playback amplifier.
In a further embodiment, amplitude and phase are partially compensated such that there is a substantial amplitude fall off and a moderate phase advance at the highest frequencies of the useful range, and such that the leading edge of a step function when played back has an overshoot of approximately one to six decibels.

REFERENCES:
patent: 2588915 (1952-03-01), Erikson
patent: 2657276 (1953-10-01), Eliot
patent: 2876296 (1959-03-01), Youngquist
patent: 3843573 (1974-10-01), Kosaka

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