Downconversion strategies for reducing interference in wanted signals
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United States of America Patent
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Jan 17, 2012
Grant Date -
Apr 15, 2010
app pub date -
May 22, 2009
filing date -
Oct 10, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A receiver for isolating a wanted signal in a received signal, the receiver comprising a downconverter for downconverting the received signal in frequency to produce a downconverted signal, a filter with a passband intended for isolating that part of the spectrum of the downconverted signal that contains the wanted signal and a controller that seeks to avoid or reduce the effect of passband intrusion in the form of a negative frequency representation of an interferer, appearing in the spectrum of the received signal, upconverted in frequency to the passband. The invention consists in corresponding methods also.
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