Multi-dynamic multi-envelope receiver
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United States of America Patent
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Feb 8, 2011
Grant Date -
Apr 16, 2009
app pub date -
Oct 15, 2007
filing date -
Oct 15, 2007
priority date (Note) -
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Abstract
The present invention is a system and a method of filtering a signal at a receiver, the signal having at least a desired channel and blockers. A first converter converts a first copy of the signal resulting in a relatively narrow band, high-resolution first signal. A second converter converts a second copy of the signal resulting in a relatively wide band, low-resolution second signal. Once each copy of the signal is converted, the copies are passed to a combiner. At the combiner, the two copies of the signal are analyzed and the desired channel is extracted from the first copy of the signal by removing any inter-modulation product caused by any interference detected in the second copy from the blockers (not detected in the first copy).
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