Patent ID: 7734848
Filing Date: 2010-06-08
Classification: G01R

Abstract:
1. An automatic test equipment device, comprising: an input receiving first data from an electronic device at a first frequency, the first frequency corresponding to a reference clock signal, and the first data being a repeatable waveform; and an output transmitting second data to the electronic device at a second frequency, the second frequency being equal to a product of the first frequency and a frequency offset value, the frequency offset value being equal to a ratio of (i) an integer number of cycles of the repeatable waveform in a sampling window to (ii) a number of data points in the sampling window, and the frequency offset value also being equal to a ratio of (iii) the first frequency to (iv) a sampling frequency of the repeatable waveform used by the automatic test equipment, wherein the automatic test equipment device is configured to coherently sample the repeatable waveform at the sampling frequency over the sampling window.