Key result
Dual-mode ECG processor achieves ~99% QRS detection sensitivity with ultra-low power consumption.
The proposed dual-mode ECG processor provides efficient QRS detection and lossless compression with ultra-low power consumption, potentially advancing wearable cardiac monitoring technology.
This work presents a low power dual-mode electrocardiogram (ECG) processor with QRS detection and ECG signal lossless compression. An adaptive difference-insensitive filter is proposed to eliminate redundant information in signal for QRS detection, which helps minimize calculation power. It is also adopted as a noise estimator and used to improve the noise tolerance of the detector. Furthermore, in compression mode, linear predictor with a novel adaptive length encoder is applied to the ECG data lossless compression, achieving a compression ratio (CR) of 2.42 with 1.06 K gate count. Implemented in 40 nm CMOS technology, the processor has a total core area of 6806 µm2, with 36 nW power consumption in detection mode and 7.3 nW in compression mode under a supply voltage of 0.5 V.
No takes yet. Share an insight, caveat, or question.
Luo et al. (2017) studied ECG monitoring. Dual-mode ECG processor vs. Previous ECG processors was evaluated on QRS detection sensitivity, positive prediction, compression ratio, and power consumption. The proposed dual-mode ECG processor achieved 99.37% sensitivity and 99.86% positive prediction for QRS detection, and a compression ratio of 2.42, with ultra-low power consumption of 36 nW.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: