Title :
Modulation scheme suitable for infra-red biotelemetry
Author_Institution :
Clinical Research Centre, Division of Bioengineering, Harrow, UK
Abstract :
Telemetering physiological signals from hospital patients by time-sharing infra-red radiation of fixed wavelength means that the limited time available for encoding each data channel imposes constraints on modulation methods. Analogue and digital modulation methods are compared and an unconventional pulse code is proposed.
Keywords :
biomedical electronics; light emitting diodes; optical links; patient monitoring; pulse-code modulation; telemetering systems; IR links; analogue modulation; constraints on modulation methods; digital modulation methods; hospital patients; infra-red biotelemetry; limited time available for encoding; modulation scheme; telemetering physiological signals; time-sharing infra-red radiation of fixed wavelength; unconventional pulse code;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850424
