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Wireless body sensor area networks (WBAN) is one of the key technologies to solve the rising healthcare costs through early detection, and point-of-care diagnosis and health management. However there is a stringent power requirement on individual sensor nodes in such networks. Consequently traditional signal chain of amplify-digitize-transmit generates large amounts of data that cannot be sustained...
An asynchronous electrocardiogram (ECG) acquisition system is presented for wearable ambulatory monitoring. The proposed system consists of a low noise front-end amplifier (AFE) with tunable bandwidth, an asynchronous analog-to-digital converter (ADC), and digital signal processing (DSP). Data compression is achieved by the inherent signal dependent sampling rate of the asynchronous architecture....
With the increase of demand for remote cardiac monitoring for elderly patients, medical service providers are facing a challenging problem: how to efficiently transmit continuous holter ECG data over often bandwidth constrained wireless network so that transmitted data is quality-wise good enough for doctors or automated computer systems to detect cardiovascular conditions in almost real-time? This...
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