Modulators – Amplitude modulator – Nonlinear device controlled by modulating signal
Patent
1976-12-22
1979-08-07
Richardson, Robert L.
Modulators
Amplitude modulator
Nonlinear device controlled by modulating signal
325 65, 332 18, H04B 110
Patent
active
041639448
ABSTRACT:
The carrier suppression circuit of the present invention is utilized to minimize electrical imbalances within double-balanced mixers. The circuit operates upon a modulating signal, having at least two states so as to adjust the dwell time that the signal stays in a particular state to counteract the effects of electrical imbalance within the mixer. Minimization of the electrical imbalance provides a greater suppression of the carrier signal which, in turn, improves the quality of the signal both at the transmitter and at the receiver.
REFERENCES:
patent: 2702209 (1955-04-01), Ambrosio
patent: 3478268 (1969-11-01), Coviello
patent: 3924186 (1975-12-01), Gordy et al.
Chambers Ramon P.
Gordy Robert S.
Morrison Cameron E.
Sanders David E.
Cavender J. T.
Chin Tommy P.
Dugas Edward
NCR Corporation
Richardson Robert L.
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