Wide-band signal processor
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United States of America Patent
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Feb 19, 2013
Grant Date -
Jun 24, 2010
app pub date -
Dec 21, 2009
filing date -
Dec 23, 2008
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Abstract
A signal processor for processing a digital input signal including samples sampled at a sampling frequency, the signal processor comprising a plurality of filters arranged to divide the digital input signal into a first signal in a first frequency band below a first cut-off frequency, and a second signal in a second frequency band above a second cut-off frequency; first frequency shifting circuitry arranged to shift the second signal to a frequency band below the first cut-off frequency; decimation circuitry arranged to decimate the first signal and the shifted second signal; and processing circuitry arranged to process the decimated first and second signals.
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