The Internet of Things (IoT) has grown over decades to encompass many forms of sensing
modalities, and continues to improve in terms of sophistication and lower costs. The trend of …

Improving our understanding of sleep physiology and pathophysiology is an important goal
for both medical and general wellness reasons. Although the gold standard for assessing …

At least 50% of the world's elderly population, whose range is fast growing, experience
disturbed sleep. Sleep studies have become an extensive approach serving as a diagnostic …

Photoplethysmography (PPG) is a non-invasive optical method to acquire various vital signs,
including heart rate (HR) and heart rate variability (HRV). The PPG method is highly …

In the application on sleeping heart monitoring by using capacitive electrocardiogram
(cECG), a raw cECG signal with high quality is usually difficult to be obtained due to the low …

Sleep-related conditions require high-cost and low-comfort diagnosis at the hospital during
one night or longer. To overcome this situation, this work aims to evaluate an unobtrusive …

In this study, we developed and tested a capacitively coupled electrocardiogram (ECG)
measurement system using conductive textiles on a bed, for long-term healthcare …

Heart rate variability (HRV) reflects the regulating effect of autonomic nerve on
cardiovascular functions and is strongly influenced by respiratory rhythm. For more …

In this paper we present a wearable device for continuous monitoring of respiration signal
and the associated algorithm for signal evaluations. The device took advantages of a proven …

A system for unobtrusive night-time electrocardiogram (EKG) and heart rate variability (HRV)
monitoring as well as data analysis methods are presented, comparing bed sheet HR and …