A HARDWARE EFFICIENT INTERPOLATION FILTER.

摘要

An interpolation filter includes a subtractor, a weighting circuit and an adder, wherein the subtractor is conditioned to for differences of adjacent original samples, and the weighting circuit weights the differences with a predetermined value. The adder is arranged to a ) pass an original sample; b) add a weighted difference to the original sample; and c) successively add the weighted difference to the previously sample to form successive samples.