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Direct Analog-to-QRS detection front-end architecture for wearable ECG applications

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2 Author(s)
Agarwal, R. ; Dept. of Electr. & Comput. Eng., Tufts Univ., Medford, MA, USA ; Sonkusale, S.

The aim of this paper is to demonstrate a highly integrated architecture for direct Analog-to-QRS detection for ultra low power single chip implementation suitable for long term wearable monitoring. A novel variable input-feature correlated asynchronous sampling technique is proposed for direct sampling-cum-data compression at the ECG electrodes with embedded mixed-signal algorithm for direct recognition and capture of the fiducial points of the ECG signal, to indicate the occurrence of the Q, R and S waves. Simulation results show two key advantages (a) large compression at the source and (b) direct analog to information conversion with 98% accuracy of detection, with extremely low power and storage requirements.

Published in:

Engineering in Medicine and Biology Society (EMBC), 2010 Annual International Conference of the IEEE

Date of Conference:

Aug. 31 2010-Sept. 4 2010

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