Patent ID: 8874410

Claim:
A system for sample selection, the system comprising: a difference calculation circuit operable to: calculate a first difference between a first value corresponding to a first digital sample and a second value corresponding to a second digital sample, calculate a second difference between a third value corresponding to a third digital sample and a fourth value corresponding to a fourth digital sample, calculate a third difference between a fifth value corresponding to a fifth digital sample and a sixth value corresponding to a sixth digital sample, and calculate a fourth difference between a seventh value corresponding to a seventh digital sample and an eighth value corresponding to an eighth digital sample; a comparator circuit operable to: compare the first difference with the second difference to yield a first comparison output, compare the first difference with the third difference to yield a second comparison output, and compare the first difference with the fourth difference to yield a third comparison output; and an output selector circuit operable to select the second value as an output based at least upon a combination of the first comparison output, the second comparison output, and the third comparison output.