Patent ID: 6304133
Filing Date: 2001-10-16
Classification: H03H

Abstract:
A moving average filter comprisinga data holding unit for holding a plurality of successive data;a coefficient storing unit for storing a coefficient;a decode value signal outputting unit which calculates a sum of a pair of data of a prescribed combination held in said data holding unit and outputs a decode value signal that corresponds to said sum;a coefficient processing unit which processes coefficient data obtained from said coefficient storing unit based on said decode value signal output from said decode value signal outputting unit and outputs said processed coefficient data as addition data; andan adder which cumulates a prescribed number of said addition results sequentially;wherein said decode value signal outputting unit outputs a first signal which fixes an output regardless of coefficient data obtained from said coefficient storing unit, a second signal which passes coefficient data obtained from said coefficient storing unit, and a third signal which shifts by a prescribed number of bits coefficient data obtained from said coefficient storing unit.