Title :
Simple multifrequency-tone detector
Author_Institution :
Australian Post Office, Research Laboratories, Melbourne, Australia
Abstract :
An outline is given of a simple method of detecting digitally encoded multifrequency tones.
Keywords :
digital filters; receivers; signal detection; signal processing; PCM; ROM; digital filters; digitally encoded multifrequency tones; multifrequency detector; signal detection; signalling; telephone networks; touch tone receiver;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19720382
