Title :
A simultaneous full-duplex speech and electrocardiogram communications system
Author :
McKee, James J. ; Evans, Noel E. ; Owens, Frank J.
Author_Institution :
Northern Ireland Bioeng. Centre, Ulster Univ., Jordanstown, UK
Abstract :
A system has been developed allowing the simultaneous communication of full-duplex speech and multiple electrocardiograms in real time. A single bandlimited channel is used, a dial-up PSTN line providing a 3 KHz bandwidth. The full-duplex speech is compressed to 2400 b/s using linear predictive coding whilst multiple electrographic signals are processed by a novel ECG compression technique. Extensive use of digital signal processing reduces the combined bit rate to less than 9600 b/s, allowing the use of a cost effective commercial modem. The communication system allows a hospital based clinician to provide diagnostic and treatment advice to a remote location, thus improving patient care
Keywords :
data communication; data compression; electrocardiography; linear predictive coding; medical signal processing; speech coding; telephone networks; voice communication; 2400 bit/s; 3 kHz; 9600 bit/s; ECG compression technique; bit rate; cost effective commercial modem; diagnostic advice; dial-up PSTN line; digital signal processing; full-duplex speech; hospital based clinician; linear predictive coding; multiple electrocardiograms; multiple electrographic signals; patient care; public switched telephone network; real time; remote location; simultaneous communication; single bandlimited channel; treatment advice; Bandwidth; Bit rate; Costs; Digital signal processing; Electrocardiography; Linear predictive coding; Real time systems; Signal processing; Speech coding; Speech processing;
Conference_Titel :
Engineering in Medicine and Biology Society, 1994. Engineering Advances: New Opportunities for Biomedical Engineers. Proceedings of the 16th Annual International Conference of the IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-2050-6
DOI :
10.1109/IEMBS.1994.415204
