Demodulators – Amplitude modulation demodulator – Having specific distortion – noise or other interference...
Patent
1980-09-15
1982-11-16
Grimm, Siegfried H.
Demodulators
Amplitude modulation demodulator
Having specific distortion, noise or other interference...
329166, H03D 118
Patent
active
043596932
ABSTRACT:
A current comparator is supplied with differential currents based upon an amplitude modulated radio frequency carrier. The comparator outputs are summed in a combining stage the output of which will contain a direct current proportional to the average carrier level and a current variation which represents the carrier modulation. The circuit provides very efficient detection of the modulated carrier.
REFERENCES:
patent: 4250457 (1981-02-01), Hofmann
Grimm Siegfried H.
National Semiconductor Corporation
Schulte Neil B.
Sheridan James A.
Westin Edward P.
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