Reproducing apparatus with controlled gain output independent of

Details Reproducing apparatus with controlled gain output independent of Reproducing apparatus with controlled gain output independent of

1982-07-22

1985-05-14

Konick, Bernard

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of the amplifier

360 47, G11B 502

Patent

active

045176124

ABSTRACT:
An apparatus for reproducing information from a track of a magnetic record carrier by means of a reproducing head divided into two reproducing portions. The apparatus comprises an amplifier circuit having a pair of input terminals, connected to the outputs of the two reproducing portions, a first signal combination unit, at least one variable gain amplifier and an output terminal. The controllable amplifier is connected between the output of the signal combination unit and the output terminal of the amplifier circuit. The gain of the amplifier is controlled in such a way that upon application of the two signals to the input terminals of the amplifier circuit, a signal is obtained on the output terminal having an amplitude u which is in a fixed ratio to the amplitude of the larger of the two signals applied to the two input terminals.

REFERENCES:
patent: 2977579 (1961-03-01), Mullin
patent: 3246307 (1966-04-01), Stanley
patent: 3501585 (1970-03-01), De Lange
patent: 4055849 (1977-10-01), Hickok

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