FM Demodulator for a plurality of carrier frequencies

Details FM Demodulator for a plurality of carrier frequencies FM Demodulator for a plurality of carrier frequencies

1980-06-04

1982-11-16

Grimm, Siegfried H.

Demodulators

Amplitude modulation demodulator

Having specific distortion, noise or other interference...

329142, 329143, 358 23, 455214, H03D 326

Patent

active

043596940

ABSTRACT:
An FM signal demodulating circuit comprises a peak differential type amplifier having two input terminals, a resonance circuit network connected between the two input terminals of the peak differential type amplifier, and a capacitor between the resonance circuit network and the ground. The resonance circuit network comprises a plurality of parallel resonance circuits which are connected in series and have respectively different parallel resonance frequencies. The demodulating circuit has a demodulating characteristic curve for demodulating FM signals having different carrier frequencies.

REFERENCES:
patent: 3024421 (1962-03-01), Clark
patent: 3800226 (1974-03-01), Close
patent: 4160955 (1979-07-01), Sato

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