Title :
A transmitter chip for an ECG heart rate monitor
Author :
Ruha, Antti ; Kostamovaara, Juha ; Säynäjäkangas, Seppo
Author_Institution :
Dept. of Electr. Eng., Oulu Univ., Finland
Abstract :
A transmitter chip for a heart rate indicator is being developed. In addition to bandpass filtering, nonlinear circuitry is being used to improve detection reliability under noisy conditions. The decision level for detection adapts to varying signal levels. A complete test chip has been designed and tested. It is integrated using a microwave analog technique and uses continuous-time, switched-capacitor, and digital circuitry. The detection principle, blocks used in implementation, and test results are presented
Keywords :
CMOS integrated circuits; biomedical electronics; biomedical equipment; electrocardiography; patient monitoring; radio transmitters; ECG heart rate monitor; SC circuitry; adaptive decision level; bandpass filtering; continuous-time circuitry; detection reliability; digital circuitry; microwave analog technique; noisy conditions; nonlinear circuitry; switched-capacitor; transmitter chip; Adaptive signal detection; Band pass filters; Circuit testing; Electrocardiography; Filtering; Heart rate; Heart rate measurement; Integrated circuit reliability; Microwave filters; Transmitters;
Conference_Titel :
Circuits and Systems, 1991., IEEE International Sympoisum on
Print_ISBN :
0-7803-0050-5
DOI :
10.1109/ISCAS.1991.176077
