Digital demodulator for AM or FM

Details Digital demodulator for AM or FM Digital demodulator for AM or FM

1989-02-02

1989-12-05

Grimm, Siegried H.

Demodulators

Frequency modulation demodulator

Input signal converted to and processed in pulse form

329347, 358174, 358188, 375 80, 375 94, 375 98, H03D 102, H03D 300

Patent

active

048855464

ABSTRACT:
In a demodulating circuit, for example, for demodulating an amplitude- or frequency-modulated signal, analog-to-digital converted values are obtained at a plurality of sampling points in each cycle of the modulated signal, such converted values are integrated to provide a calculated integration value for the respective cycle, and the calculated integration value is compared with a maximal integration value derived in the same manner so as to obtain the demodulated output.

REFERENCES:
patent: 3670251 (1972-06-01), Shintani et al.

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