Automatic gain control

Details Automatic gain control Automatic gain control

2006-07-25

2006-07-25

Vo, Nguyen T. (Department: 2685)

Telecommunications

Receiver or analog modulated signal frequency converter

Local control of receiver operation

C455S138000, C455S250100, C375S345000

Reexamination Certificate

active

07082291

ABSTRACT:
A method for controlling gain of an amplifier includes amplifying one or more received signals to produce one or more amplified signals. The method also includes generating a plurality of down converted signals using the one or more amplified signals. The method further includes amplifying the plurality of down converted signals based on a gain control signal. In addition, the method includes varying a time constant of the gain control signal based on a time derivative parameter associated with the plurality of down converted signals.

REFERENCES:
patent: 5499392 (1996-03-01), Grunwell
patent: 5550869 (1996-08-01), Gurantz et al.
patent: 6442380 (2002-08-01), Mohindra
patent: 6456833 (2002-09-01), Sessink
patent: 6459458 (2002-10-01), Balaban
patent: 6459889 (2002-10-01), Ruelke
patent: 6549763 (2003-04-01), Imai et al.
patent: 6700921 (2004-03-01), Shibuta

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