Patent Document ID: 9357163
Application ID: 14033077
Patent Status: 1

Claim One:
1. A method for characterizing ingress noise in a cable network, the method comprising: (a) identifying a first frequency band of a cable signal at a first location in the cable network; (b) obtaining a time trace of a first parameter of the cable signal in the first frequency band identified in step (a); (c) computing an autocorrelation function of the time trace, wherein a first autocorrelation peak at a first non-zero time delay identifies a first repetitive noise component of the ingress noise; (d) repeating steps (b) and (c); (e) averaging the autocorrelation functions computed in the repeated step (c) to compute an averaged autocorrelation function; and (f) determining a first repetition frequency of the first repetitive noise component from a time delay of a peak in the averaged autocorrelation function of step (e).