Modulators – Amplitude modulator – Nonlinear device controlled by modulating signal
Patent
1975-06-20
1976-12-21
Kominski, John
Modulators
Amplitude modulator
Nonlinear device controlled by modulating signal
84 126, 332 16T, 332 31T, 332 47, G10H 102
Patent
active
039991490
ABSTRACT:
A modulator for modulating an audio signal in response to a dc signal of adjustable level and concurrently in response to a sub-audio signal, in which the modulating signals do not appear in the output of the modulator nor intermodulate each other, the system including transistor pairs which respond differentially at the bases to the modulating signal and additively to the audio signal in response to application of the audio signal at the emitters.
REFERENCES:
patent: 2994044 (1961-07-01), Straube
patent: 3202939 (1965-08-01), Reiling
patent: 3656008 (1972-04-01), Nakagomi
patent: 3708603 (1973-01-01), Keagle
patent: 3823244 (1974-07-01), Nagahama
patent: 3866148 (1975-02-01), Lisle, Jr.
patent: 3895316 (1975-07-01), Fein
D. H. Baldwin & Company
Kominski John
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