Patent ID: 7352275
Filing Date: 2008-04-01
Classification: G06F,H03K

Abstract:
1. Device for comparing two words N and P of n bits each, which includes at least one level-1 comparator block which itself includes: n basic comparator blocks, each enabling the bits Ni and Pi of position i of words N and P to be compared, with i being between 0 and n− means for generating a third signal at a first output of the level-1 comparator block, indicating that the numbers N and P are equal if the n first signals indicate that the n bits Ni and the n bits Pi are equal, and otherwise indicating that the numbers N and P are not equal; and first selective passage means enabling the second output of a basic comparator block to be selectively connected to a second output of the level-1 comparator block, which basic comparator block, from among the basic comparator blocks having a second signal at their second output, processes higher-order bits, with the signal present at the second output of the level-1 comparator block indicating which of the numbers N and P is greater.