METHOD AND APPARATUS FOR PROCESSING A SIGNAL
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United States of America Patent
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Sep 17, 2015
app pub date -
Oct 23, 2013
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Oct 24, 2012
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Abstract
The present invention relates to a method and apparatus for signal processing through the manipulation of a time-domain signal by using a conversion into the frequency domain comprising: forming (102) a plurality of overlapping time segments representing an input signal; applying a first window function to each of the overlapping time segments time segments and converting (103) the windowed overlapping time segments into respective frequency segments; converting (104) each of the respective frequency segments to respective time segments; and applying a composite window function to each of the respective time segments and combining (105) the windowed respective time segments to produce an output signal. The method is particularly useful for applications requiring the manipulation of a time signal in the frequency domain, for example in manipulating signal to noise ratios.
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