Patent ID: 8948481
Filing Date: 2015-02-03
Classification: G06F,G06K

Abstract:
1. A signal processing method comprising: inputting sample values, into a hardware memory of a computer, of a band-limited signal; considering the signal to comprise a plurality of portions; wherein the signal processing method is characterised for each portion of the signal by: a) fitting a predetermined interpolating or approximating function to the sample values of the portion of the signal, by calculating values of coefficients for the predetermined interpolating or approximating function, the interpolating or approximating function approximating a reconstruction of the portion of the signal; and b) evaluating a statistical information function using the calculated coefficient values, to determine statistical information sought for the portion of the signal, wherein the statistical information function is an analytic solution for: (i) the statistical information; and (ii) the predetermined interpolating or approximating function; using the statistical information obtained about the signal to process the signal.