Detecting digital radio signals
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United States of America Patent
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Sep 1, 2015
Grant Date -
Sep 11, 2014
app pub date -
May 21, 2014
filing date -
Sep 30, 2010
priority date (Note) -
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Abstract
In one embodiment, a receiver front end circuit can receive and process multiple radio frequency (RF) signals and output downconverted signals corresponding to these signals. In turn, multiple signal processors can be coupled to this front end. Specifically, a first signal processor can receive and process the downconverted signals to output a first signal obtained from content of a first RF signal, and a second signal processor can receive and process the downconverted signals to output a second signal obtained from content of a second RF signal. In addition, the apparatus may include a detection circuit coupled to the receiver front end circuit to detect presence of at least the second signal and enable the second signal processor responsive to the detected presence.
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