Fir Decimation Filter and Arrangement Comprising the Same
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United States of America Patent
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Issued Date -
May 8, 2008
app pub date -
Dec 22, 2005
filing date -
Dec 23, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A finite impulse response (FIR) decimation filter includes an input to receive an oversampled signal, and an output to provide an output signal having a sampling rate that is reduced by a decimation factor relative to the oversampled signal. The decimation factor corresponds to a sum of one and an order N of the FIR decimation filter. A supply is used to provide filter coefficients for the FIR decimation filter. One multiplication and addition entity is used in generating the output signal. The multiplication and addition entity is configured to perform multiplication by bit shifting and/or addition.
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