Patent ID: 9659091
Date: 2017-05-23
CPC Classifications: G06F,G10H

Claim:
1. A method comprising: filtering, by a computer processor, a data signal to produce a plurality of filtered signals, at least two of the filtered signals having a different frequency range; for each filtered signal in the plurality of filtered signals, scanning, by the computer processor, the each filtered signal for one or more peaks, each peak found from an average total power calculated for the each filtered signal for a series of sample periods; determining characteristic data for the data signal, by the computer processor, wherein the characteristic data for the data signal is determined based on the one or more peaks; extracting, by the computer processor, a digital thumbprint from the data signal based on content of the data signal, the digital thumbprint comprising the determined characteristic data for the data signal; and storing, by the computer processor, the digital thumbprint on a non-transitory computer-readable storage medium.