Automatic modulation percentage control for amplitude modulated

Details Automatic modulation percentage control for amplitude modulated Automatic modulation percentage control for amplitude modulated

1976-02-27

1978-05-09

Richardson, Robert L.

Modulators

Amplitude modulator

Nonlinear device controlled by modulating signal

325144, 332 39, H04B 104

Patent

active

040889564

ABSTRACT:
An automatic modulation percentage control for amplitude modulated transmitters wherein a percentage detection circuit responsive to a sample signal from the transmitter and functioning at a selected modulation percentage generates a gain-reduction bias for a gain control amplifier supplying the transmitter. The percentage detection circuit compares a reduced DC component with the unattenuated AC component of the sample signal.

REFERENCES:
patent: 2235339 (1941-03-01), Stewart
patent: 2941162 (1960-06-01), Cotellessa et al.
patent: 2957147 (1960-10-01), Cotellessa et al.
patent: 2984796 (1961-05-01), Affelder
patent: 3320536 (1967-05-01), Lockwood

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