AUTOMATIC GAIN CONTROL CIRCUIT AND METHOD FOR AUTOMATIC GAIN CONTROL
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United States of America Patent
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Issued Date -
Mar 25, 2010
app pub date -
Nov 23, 2007
filing date -
Nov 28, 2006
priority date (Note) -
Abandoned
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Abstract
An automatic gain control circuit and method for stably maintaining received power in a mobile Internet system is disclosed. An efficient automatic gain control circuit structure is provided which uses no separate analog circuit elements in a process of detecting the level of a received signal. Therefore, it is possible to reduce a complexity of hardware, the size of the automatic gain control circuit and a manufacturing cost. Further, an automatic gain control (AGC) unit, which is made in a Fluctuating Gunn-Peterson Approximation (FGPA) type, performs an automatic gain control simply by referring to a lookup table based on the level of a received signal. Therefore, the present automatic gain control circuit can not only be more simply designed or modified than a conventional automatic gain control circuit, but also stabilize the level of the received signal simply without periodically checking the level of the received signal for the automatic gain control.
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