Multiple input audio program system

Details Multiple input audio program system Multiple input audio program system

1980-04-07

1982-11-16

Popek, Joseph A.

179 1VL, H04H 102, H04R 102

Patent

active

043596029

ABSTRACT:
Multiple input sound amplifying and activation system including at least two microphones where an input channel is provided for each microphone. Each input channel provides a rectified signal to a summing device which sums the signals from the channels to generate a reference signal. Each input channel also includes a comparator to compare the reference signal with the signal received by the channel and provides a first control signal and second control signal in response to ratio between the reference signal and the channel input signal. The control signals operate a program signal amplifier to provide a program signal to an attenuator which attenuates the signal in response to the number of active channels.

REFERENCES:
patent: 4090032 (1978-05-01), Schrader
patent: 4149032 (1979-04-01), Peters

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