Noise eliminator for radio receiver

Details Noise eliminator for radio receiver Noise eliminator for radio receiver

1979-10-15

1981-10-06

Olms, Douglas W.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

455223, H04H 500

Patent

active

042937361

ABSTRACT:
A noise eliminator for a radio receiver comprises an automatic gain control amplifier for amplifying a noise signal extracted from an intermediate-frequency signal or a detector output signal of the receiver, a circuit for producing a faithfully pulsating noise signal and an average noise signal from the output of the amplifier circuit, an operational circuit for detecting an impulse noise component through a comparative operation of the pulsating noise signal and the average noise signal, and a gate circuit for controlling a signal transmission in the receiver in accordance with the detected impulse noise component.

REFERENCES:
patent: 3626294 (1971-12-01), Dancy
patent: 4006419 (1977-02-01), Liman
patent: 4044309 (1977-08-01), Smith
patent: 4154980 (1979-05-01), Schmidt et al.

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