A compact Finite Impulse Response (FIR) filter using one or both of a compact address sequencer and a compact multiplier/accumulator. The address sequencer exploits certain symmetry properties existing between different phases of a polyphase FIR filter in order to reduce coefficient storage and simplify...http://www.google.fr/patents/US5500811?utm_source=gb-gplus-shareBrevet US5500811 - Finite impulse response filter
