Patent ID: 8031810

Claim:
A method, comprising: during a first time interval, sampling a first analog signal of a pair of analog signals in an analog to digital converter to provide a first digital signal; during a second time interval non-overlapping the first time interval, sampling a second analog signal of the pair of analog signals in the analog to digital converter to provide a second digital signal, wherein the pair of analog signals have a predetermined phase relationship; and aligning the first digital signal and the second digital signal so as to compensate for a phase difference introduced by the sampling of the first analog signal and the second analog signal respectively during the first time interval and the second time interval, wherein the aligning of the first digital signal and the second digital signal comprises delaying one of the first digital signal and the second digital signal, and interpolating the other one of the first digital signal and the second digital signal to compensate for the phase difference introduced by the sampling during the first time interval and the second time interval, wherein interpolating the other one of the first digital signal and the second digital signal realizes a delay of (2k+1)/2 clock cycles, where k is an integer.