Digital automatic gain control
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United States of America Patent
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Mar 19, 2013
Grant Date -
May 19, 2011
app pub date -
Nov 19, 2009
filing date -
Nov 19, 2009
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An automatic gain control (“AGC”) system. The system includes a first multiplier, an envelope detector, a summation module, a filter module, a convergence module, and a feedback module. The convergence module includes a convergence control module and a second multiplier. The feedback module includes an accumulator, a scalar multiplier module, and a third multiplier. The system is configured to adjust or modify its convergence speed according to the state of convergence of the AGC system, and the convergence speed of the AGC system is substantially independent of a signal level of the received signal.
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