Broad-dynamic filtering procedure for a recursive digital filter installed in a signal processor (DSP) operating with integers

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United States of America Patent

APP PUB NO 20020035587A1
SERIAL NO

09966260

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Abstract

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The present invention relates to a filtering procedure for recursive digital filters installed in signal processors (DSP) operating with integers. It comprises two calculation procedures coupled with the classical calculation procedure of a recursive filter, the first of which, when calculating the output value of the sample, takes into account the remainders of integer divisions by the scale factor, coming from calculating the output values for the previous samples, and the second of which replaces the default value from dividing the integer by a scale factor by the integer value closest to the result of actual division.

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Patent Owner(s)

Patent OwnerAddress
INSTITUT FRANCO-ALLEMAND DE RECHERCHES DE SAINT-LOUIS5 RUE DU GÉNÉRAL CASSAGNOU SAINT-LOUIS 68300

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Buck, Karl Bartenheim, FR 3 7
Zimpfer, Veronique Saint-Louis, FR 2 1

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