Patent ID: 9209818
Filing Date: 2015-12-08
Classification: G01R,H03L,H04B,H04L

Abstract:
1. A method for determining jitter tolerance, the method comprising: generating an inverted signal having a phase shifted by approximately 180 degrees from a phase of a received input signal; generating a first phase shifted signal having a phase shifted by a first amount in a first direction relative to an edge of the inverted signal; generating a second phase shifted signal having a phase shifted by a second amount in a direction opposite to the first direction; detecting a value of the input signal at each of three distinct latch times corresponding to the edge of the inverted signal, an edge of the first phase shifted signal, and an edge of the second phase shifted signal; comparing each of the detected values of the input signal; and generating a result of the comparison, the result of the comparison indicative of a measure of jitter tolerance of the input signal.