Frequency modulation detectors

Details Frequency modulation detectors Frequency modulation detectors

1984-12-10

1986-07-29

LaRoche, Eugene R.

Demodulators

Amplitude modulation demodulator

Having specific distortion, noise or other interference...

329137, 455214, H03D 100

Patent

active

046033025

ABSTRACT:
An FM detector comprises a frequency divider arranged to frequency divide an input FM signal and a phase sensitive detector coupled to the frequency divider. The detector receives a first frequency divided signal from a first path and receives a second frequency divided signal from a second path. The second path has a phase shift means located therein which is operative to shift the phase of the second frequency divided signal, in dependence on its frequency, relative to the phase of the first frequency divided signal. The phase sensitive detector provides an output signal corresponding to the modulation carried by the input signal.

REFERENCES:
patent: 4288876 (1981-09-01), Lennox et al.

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