Cy. Lee et al., A PARALLEL BIT-LEVEL MAXIMUM MINIMUM SELECTOR TO DIGITAL AND VIDEO SIGNAL-PROCESSING, IEEE transactions on circuits and systems. 2, Analog and digital signal processing, 41(10), 1994, pp. 693-695
This paper presents a novel circuit for parallel bit-level maximum/min
imum selection. The selection is based on a label-updating scheme whic
h sequentially scans a set of data patterns from MSB to LSB and genera
tes corresponding labels. The complete circuit realizing this scheme c
onsists of a set of updating units and a global OR unit, where each up
dating unit is composed of only a few basic gates. Due to structure mo
dularity, the developed circuit provides a very cost-effective hardwar
e solution for comparing large volumes of data patterns as those requi
red in digital and video signal processing.