Demodulators – Amplitude modulation demodulator – Having specific distortion – noise or other interference...
Patent
1974-01-24
1976-08-10
Safourek, Benedict V.
Demodulators
Amplitude modulation demodulator
Having specific distortion, noise or other interference...
179 15BP, 325401, 329 50, H04J 102
Patent
active
039744477
ABSTRACT:
A pilot receiver for level control in carrier frequency systems works with an intermediate frequency which is optimal from the viewpoint of the filter which is an integral part of the receiver and comprises in series connection, a phase-shift demodulator (quadrature demodulator), an active RC-filter and a rectifier.
REFERENCES:
patent: 2871294 (1959-01-01), Stachiewicz
patent: 2965717 (1960-12-01), Bell
patent: 3108158 (1963-10-01), Jones
patent: 3193775 (1965-07-01), Herrero et al.
patent: 3289082 (1966-11-01), Shumate
patent: 3522537 (1970-08-01), Boughtwood
Electronics World, July 1965 pp. 84-88, "Selective Audio Amplifiers."
Electronics, Aug. 1968 18, Foldout From p. 85 "Basic Building Blocks . . . " .
Safourek Benedict V.
Telefonaktiebolaget L M Ericsson
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