DIGITAL SIGNAL PROCESSING APPARATUS AND PROCESSING METHOD THEREOF
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United States of America Patent
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Issued Date -
Jun 12, 2014
app pub date -
Feb 26, 2013
filing date -
Dec 7, 2012
priority date (Note) -
Abandoned
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Abstract
A digital signal processing apparatus and a digital signal processing method are provided. The digital signal processing apparatus includes a memory, a control logic unit, a butterfly arithmetic unit, a selector, a first twiddle factor generator, a second twiddle factor generator and a twiddle factor latch. The first twiddle factor generator and the second twiddle factor respectively provide a first sub-twiddle factor and a second sub-twiddle factor. A weight value (twiddle factor) is produced by the butterfly arithmetic unit through performing a complex multiplication operation on the first sub-twiddle factor and the second sub-twiddle factor.
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