Name
Title | ||
|---|---|---|
A 6.14µA normally-off ECG-SoC with noise tolerant heart rate extractor for wearable healthcare systems |
Abstract | ||
|---|---|---|
This paper describes an electrocardiograph (ECG) monitoring SoC using a non-volatile MCU (NVMCU) and a noise tolerant instantaneous heart rate (IHR) monitor. The novelty of this work is the combination of the non-volatile MCU for normally-off computing and a noise-tolerant-QRS (heart beat) detection algorithm to achieve both low-power and noise tolerance. To minimize the stand-by current of MCU, a non-volatile flip-flop and a 6T-4C NVRAM are employed. Proposed plate-line charge-share and bit-line non-precharge techniques also contribute to mitigate the active power overhead of 6T-4C NVRAM. The proposed accurate heart beat detector employs a coarse-fine autocorrelation and a template matching technique. Accurate heart beat detection also contributes system level power reduction because the active ratio of ADC and digital block can be reduced using a heart beat prediction. Then, at least 25% active time can be reduced. Measurement results show the fully integrated ECG-SoC consumes 6.14μA including 1.28-μA nonvolatile MCU and 0.7-μA heart rate extractor. |
Year | DOI | Venue |
|---|---|---|
2014 | 10.1109/BioCAS.2014.6981717 | BioCAS |
Keywords | DocType | Citations |
electrocardiography,health care,system-on-chip,wearable computers,coarse-fine autocorrelation,current 6.14 mua,electrocardiograph monitoring,heart beat detection algorithm,noise tolerant heart rate extractor,nonvolatile mcu,normally off ecg soc,template matching technique,wearable healthcare systems,biomedical signal processing,heart rate extraction,mobile healthcare,wearable sensors | Conference | 3 |
PageRank | References | Authors |
0.60 | 6 | 15 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Shintaro Izumi | 1 | 82 | 31.56 |
| Masanao Nakano | 2 | 11 | 2.89 |
| ken yamashita | 3 | 3 | 0.60 |
| tomoki nakagawa | 4 | 6 | 1.97 |
| yuki kitahara | 5 | 3 | 1.27 |
| kyoji marumoto | 6 | 12 | 3.61 |
| takaaki fuchikami | 7 | 12 | 3.61 |
| hiromitsu kimura | 8 | 12 | 3.61 |
| yoshikazu fujimori | 9 | 12 | 3.27 |
| koji yanagida | 10 | 3 | 1.61 |
| Shusuke Yoshimoto | 11 | 30 | 12.56 |
| Hiroshi Nakajima | 12 | 89 | 12.41 |
| Toshikazu Shiga | 13 | 27 | 6.43 |
| masahiko yoshimoto | 14 | 117 | 34.06 |
| Hiroshi Kawaguchi | 15 | 37 | 21.08 |