Modulators – Amplitude modulator – Nonlinear device controlled by modulating signal
Patent
1974-09-25
1976-06-22
Grimm, Siegfried H.
Modulators
Amplitude modulator
Nonlinear device controlled by modulating signal
332 37D, 332 38, 332 40, 343108SM, 343109, H03C 106
Patent
active
039654435
ABSTRACT:
An amplitude modulation system having a modulation control circuit including a limiter for the modulation signal, a detector for deriving a DC contr0l signal from the unmodulated carrier, a first adjustable network connected to the detector to produce a signal applied to a modulation control circuit for adjusting depth of modulation, and an additional adjustable network connected between the detector and the modulator to produce a signal for adjusting the modulated carrier.
REFERENCES:
patent: 2895109 (1959-07-01), Weinreich
patent: 3188581 (1965-06-01), Palmer
patent: 3304505 (1967-02-01), Pricer
patent: 3422356 (1969-01-01), Fritts
patent: 3544834 (1970-12-01), Bates
patent: 3851276 (1974-11-01), Kaplan
Brcic Stanko
Towle Allistair
Berka George B.
Grimm Siegfried H.
Trifari Frank R.
U.S. Philips Corporation
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