This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
IIRFilter.svg typical block diagram of an infinite impulse response filter The block is unit delay The coefficients and number of feedback paths are implementationdependent en halpaugh verizon net created this image Halpaugh original upload log page en IIRFilter svg Halpaugh bytes no verizon net created this image IIR filters