Automatic gain control device for a single-sideband receiver

Details Automatic gain control device for a single-sideband receiver Automatic gain control device for a single-sideband receiver

1978-10-20

1980-05-20

Mullins, James B.

Amplifiers

With control of power supply or bias voltage

With control of input electrode or gain control electrode bias

330138, 455234, 330141, H03G 320

Patent

active

042041724

ABSTRACT:
A circuit determines whether the signal transmitted by a variable-gain amplifier comprises information or not. If it comprises information, its level is regulated, by comparison with a first reference signal, in order to give a predetermined correct listening level at the output of the receiver. If it does not comprise any, its level is regulated, by comparison with a second reference signal, in order to give at the output of the receiver the listening level corresponding to the hearing threshold.

REFERENCES:
patent: 4112384 (1978-09-01), Buchberger

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