Communication receiver having reduced dynamic range by reducing the fixed range of the amplifier and increasing the variable gain via a gain control circuit
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United States of America Patent
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Jan 13, 2004
Grant Date -
Jun 6, 2002
app pub date -
Oct 15, 2001
filing date -
Dec 24, 1998
priority date (Note) -
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Abstract
An apparatus for use in a receiver in a communication system in which signals cover a wide range of power levels. The apparatus provides reduced power consumption without sacrificing receiver sensitivity by using an amplifier having a fixed, relatively narrow dynamic range that can by selectively positioned to accommodate the wide range of power levels. The amplifier is placed earlier in the receiver signal processing chain than comparable amplifiers in conventional receivers.
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