Muting signal generation circuit for an FM receiver

Details Muting signal generation circuit for an FM receiver Muting signal generation circuit for an FM receiver

1979-10-02

1981-08-11

Richardson, Robert L.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency or phase modulation

H04B 116

Patent

active

042837936

ABSTRACT:
An improved muting signal generation circuit of an FM receiver of the type in which the deviation of an FM detection signal relative to a predetermined level is detected. When the deviation of the FM detected signal is above or below a predetermined value, a muting signal is generated. A band elimination filter is provided for eliminating the frequency components of an information signal contained in the FM detection signal. A detuning detection circuit detects detuning in response to the output of the band elimination filter. A muting signal generation circuit generates a muting signal in response to the detection output of the detuning detection circuit.

REFERENCES:
patent: 2959673 (1960-11-01), Magnuski
patent: 3889192 (1975-06-01), Schiebelhuth et al.

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