Method and apparatus for automatic signal level adustment

Details Method and apparatus for automatic signal level adustment Method and apparatus for automatic signal level adustment

1988-01-19

1990-08-07

Callahan, Timothy P.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

328162, 307264, 307493, 330279, H03K 508, H03G 300, H03G 310

Patent

active

049471333

ABSTRACT:
An input signal passes by way of a variable gain amplifier to an output terminal. In addition the input signal is applied to a peak detector and then a control signal is derived by applying a smoothing function taking into account a predetermined number of peak values. A selected gain function is applied to the control signal. The control signal is preferably also multiplied by a compression control signal which acts on individual half cycles to bring all peak values in the output signal to the same value.

REFERENCES:
patent: 4187477 (1980-02-01), Endoh et al.
patent: 4250470 (1981-02-01), Szarvas
patent: 4377788 (1983-03-01), Christopher et al.
patent: 4415866 (1983-11-01), Wermuth
patent: 4535471 (1985-08-01), Kukoda

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