Title :
Integrated DTMF Receiver
Author :
Callahan, Michael J., Jr.
Author_Institution :
MOSTEK Corp., Carrollton, TX
fDate :
2/1/1979 12:00:00 AM
Abstract :
A single integrated-circuit receiver for telephone systems is described. A new detection algorithm allows for the proper detection of tones with exceptional insensitivity to speech.
Keywords :
CMOS integrated circuits; Telephone switching; Active filters; Central office; Cost function; Decoding; Detection algorithms; Frequency; Noise level; Signal detection; Speech; Telephony;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOM.1979.1094411
