A parallel bit-level maximum/minimum selector for digital and videosignal processing

摘要

This paper presents a novel circuit for parallel bit-levelnmaximum/minimum selection. The selection is based on a label-updatingnscheme which sequentially scans a set of data patterns from MSB to LSBnand generates corresponding labels. The complete circuit realizing thisnscheme consists of a set of updating units and a global OR unit, whereneach updating unit is composed of only a few basic gates. Due tonstructure modularity, the developed circuit provides a veryncost-effective hardware solution for comparing large volumes of datanpatterns as those required in digital and video signal processing