Method and apparatus for automatic gain control with improved re

Details Method and apparatus for automatic gain control with improved re Method and apparatus for automatic gain control with improved re

1998-03-06

2000-03-14

Wells, Kenneth B.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

Nonlinear amplifying circuit

327363, 327563, 330260, 330291, G06G 712

Patent

active

060378344

ABSTRACT:
The AGC circuit and method especially applicable in circuits where fast response and stability of the system is necessary, such as where input signals are speech patterns. A gain feedback loop repeatedly adapts the gain and a long term average energy E.sub.mean of the output signal until it approaches a predetermined level. In each pass through the gain feedback loop the long term average energy E.sub.mean is increased by a gain compensation parameter directly proportional to a gain change, thereby rapidly adapting the long term average energy E.sub.mean to converge to the predetermined level.

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