Signal analyzer, signal analyzing method, signal synthesizer, signal synthesizing, windower, transformer and inverse transformer
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United States of America Patent
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Mar 25, 2014
Grant Date -
Oct 10, 2013
app pub date -
Apr 15, 2013
filing date -
Oct 15, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present disclosure relates to a signal analyzer for processing an overlapped input signal frame comprising 2N subsequent input signal values. The signal analyzer comprises: a windower adapted to window the overlapped input signal frame to obtain a windowed signal, wherein the windower is adapted to zero M+N/2 subsequent input signal values of the overlapped input signal frame, wherein M is equal or greater than 1 and smaller than N/2; and a transformer adapted to transform the remaining 3N/2−M subsequent windowed signal values of the windowed signal using N−M sets of transform parameters to obtain a transformed-domain signal comprising N−M transformed-domain signal values.
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