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This paper introduces the design and implementation of non-invasive, continuous time, cuff-less, blood pressure (BP) system based on pulse transmission time delay (PTT). The wearable BP device processing and monitoring both are performed using Smartphone. The PPG sensor and the integrated ECG sensor are wireless connected to smartphone. An adaptive threshold peak detection algorithm is proposed and...
Ultra-low power consumption is desired in most wearable biomedical devices. The event-driven based Analog-to-Digital converter (ADC) could be an excellent candidate for low power system because of the reduction in sampling points for biosignals. In the existing event-driven based ADC architectures, two or more high precision comparators are utilized to sample the input signal. In this paper, we propose...
A novel wearable electrocardiograph (ECG) QRS detection algorithm for wearable ECG devices in body area networks is presented in this paper, which utilizes the multistage multiscale mathematical morphology filtering to suppress the impulsive noise and uses the multiframe differential modulus accumulation to remove the baseline drift and enhance the signal. The proposed algorithm, verified with data...
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