Differential FM detector with series tuned filter

Details Differential FM detector with series tuned filter Differential FM detector with series tuned filter

1979-07-20

1981-06-09

Grimm, Siegfried H.

Demodulators

Amplitude modulation demodulator

Having specific distortion, noise or other interference...

329143, 455214, H03D 314

Patent

active

042727260

ABSTRACT:
A balanced discriminator for frequency modulation systems particularly useful in integrated circuit applications. A source of FM signal having substantially zero source impedance drives a discriminator circuit-differential peak detector combination. The discriminator comprises first and second like capacitors connected between the FM source and first and second input connections to the differential peak detector respectively, an inductor connected between the input connections of the differential peak detector, and a third capacitor connected between said second input connection and a point of fixed potential.

REFERENCES:
patent: 2341240 (1944-02-01), Reid
patent: 2404359 (1946-07-01), Bond
patent: 2497840 (1950-02-01), Seeley
patent: 2497841 (1950-02-01), Seeley
patent: 2520621 (1950-08-01), Beers, Jr.
patent: 3519944 (1970-07-01), Avins
patent: 3588721 (1971-06-01), Keller et al.
patent: 3628046 (1971-12-01), Bilotti

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