Method and installation of the analysis of a series of the impulse responses, in particular for the recognition of decimal through the network convenience.

摘要

Method and installation for analysis of a series of pulse responses, especially for recognition of ancillary decimal dialling over the telephone network characterised in that - a first series of pulse signals is taken as a reference series of pulse signals, - this first series is sampled, - the signal to be analysed, constituting a second pulse series is taken, and this second series is sampled, - the two series of pulse signals are compared, forming their correlation, - the relative maxima of the correlation are counted, in order to deduce the figure transmitted therefrom. IMAGE