FINITE IMPULSE RESPONSE FILTER AND FILTERING METHOD
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United States of America Patent
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May 5, 2016
app pub date -
Jan 16, 2015
filing date -
Oct 30, 2014
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Abstract
A finite impulse response (FIR) filter and a corresponding filtering method are provided. The FIR filter receives an input sequence. The input sequence includes a plurality of input values. The FIR filter includes at least one first adder, at least one multiplier, and a second adder. Each first adder performs multiple addition operations simultaneously in parallel. Each addition operation outputs a sum of two of the input values. Each multiplier performs multiple multiplication operations simultaneously in parallel. Each multiplication operation outputs a product of one of the sums and one of a plurality of coefficients of the FIR filter. The second adder outputs a total sum of the products.
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