2021年5月26日 · A slight modification and attaching required electronic circuit in the conventional stethoscope has been designed and fabricated to acquire the HSS electronically.

This paper presents PPG and PCG integrated circuits for multi-mode health monitoring system on the chest. Using chopper-stabilization technique and improved noise shaping loop, the noise of the core amplifier in the integrator and the quantization error are reduced in PPG ROIC.

The PCG signal records heart sounds and reveals information about cardiac functioning by analysing the recorded sounds. PPG is an optical technique that measures relative changes in the blood volume of living tissue.

Extracting cardiac information from heart sounds and detecting abnormal heart sounds to diagnose heart diseases using the PCG signal can play a vital role in remote patient monitoring. In this paper, we have combined different signal processing techniques and a deep learning method to denoise, compress, segment, and classify PCG signals ...

In this work, we propose a different approach to simultaneously detect the phonocardiogram (PCG) and seismocardiogram (SCG). It relies on using two piezoelectric films implemented in a single portable chest-worn device, reducing the number of devices attached to the body.

... synchronous resonant PCGs have more energy conversion efficiency. In this work, we integrate 2N2P-PCG with adiabatic logic circuits and its schematic is shown in Figure 3 [51]. The 2N2P-PCG...

Phonocardiography is a technique to acquire Heart Sound Signals (HSS), the audio record of which is commonly known as Phonocardiogram (PCG). Auscultation is the technique of hearing the HSS for analysis and initial detection of any disorder present in the cardiovascular system.

The PCG variation detection of several clinical-oriented diseases, such as mitral valve insufficiency and aortic regurgitation, is based on recurrence time statistics in combination with nonlinear prediction to remove obscuring heart sounds from respiratory sound recordings in healthy and patient subjects.

Designing energy-efficient and secure cryptographic circuits in low-frequency medical devices are challenging due to low-energy requirements. Also, the conventional CMOS logic-based cryptographic...

2022年6月16日 · chestpiece, PCG circuit, arduino and Personal Computer (PC). PCG circuit consists of a sound sensor in the form of a microphone connected to the chestpiece through a rubber tube, filter circuit and amplifier circuit. When the chestpiece is attached to the chest, the sound is transmitted to the