Signal correction for electrical gain control systems

Details Signal correction for electrical gain control systems Signal correction for electrical gain control systems

1978-09-19

1980-11-18

Miller, Jr., Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307230, 328145, 328160, G06G 712, G06G 724

Patent

active

042348048

ABSTRACT:
The present invention relates to an electrical gain control system which provides a first signal logarithmically related to an input signal, sums a gain control signal with the first signal; and then provides an output signal which is an antilogarithmic function of the sum of the gain control signal and first signal. In accordance with the present invention in order to at least partially compensate for errors in the output signal arising from inherent characteristics of the components of the system, the system is improved by comparing the input signal and the output signal; generating an error correction signal in response to the comparison as a function of the errors in the output signal; and summing the error correction signal with the first signal and the gain control signal so as to reduce the error in the output signal.

REFERENCES:
patent: 3657528 (1972-04-01), Plante
patent: 3681618 (1972-08-01), Blackmer
patent: 3714462 (1973-01-01), Blackmer
patent: 3855101 (1974-12-01), Wilson

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