Event-driven data acquisition and digital signal processing—A tutorial

Y Tsividis - IEEE Transactions on Circuits and Systems II …, 2010 - ieeexplore.ieee.org
Event-driven analog-to-digital conversion and associated digital signal processing
techniques are reviewed. Such techniques, still in the research stage, have the potential to …

A level-crossing based QRS-detection algorithm for wearable ECG sensors

N Ravanshad, H Rezaee-Dehsorkh… - IEEE journal of …, 2013 - ieeexplore.ieee.org
In this paper, an asynchronous analog-to-information conversion system is introduced for
measuring the RR intervals of the electrocardiogram (ECG) signals. The system contains a …

A sub-microwatt asynchronous level-crossing ADC for biomedical applications

Y Li, D Zhao, WA Serdijn - IEEE Transactions on Biomedical …, 2013 - ieeexplore.ieee.org
A continuous-time level-crossing analog-to-digital converter (LC-ADC) for biomedical
applications is presented. When compared to uniform-sampling (US) ADCs LC-ADCs …

An adaptive resolution asynchronous ADC architecture for data compression in energy constrained sensing applications

M Trakimas, SR Sonkusale - IEEE Transactions on Circuits and …, 2010 - ieeexplore.ieee.org
An adaptive resolution (AR) asynchronous analog-to-digital converter (ADC) architecture is
presented. Data compression is achieved by the inherent signal dependent sampling rate of …

Event-driven circuits and systems: A promising low power technique for intelligent sensors in aiot era

Y Zhao, Y Lian - IEEE Transactions on Circuits and Systems II …, 2022 - ieeexplore.ieee.org
This brief presents an overview of current trends in the level-crossing based even-driven
systems for wireless sensors in AIoT applications. We show that orders of magnitude …

Power efficiency comparison of event-driven and fixed-rate signal conversion and compression for biomedical applications

J Van Assche, G Gielen - IEEE Transactions on Biomedical …, 2020 - ieeexplore.ieee.org
Energy-constrained biomedical recording systems need power-efficient data converters and
good signal compression in order to meet the stringent power consumption requirements of …

Evaluation of level-crossing ADCs for event-driven ECG classification

M Saeed, Q Wang, O Märtens, B Larras… - … Circuits and Systems, 2021 - ieeexplore.ieee.org
In this paper, a new methodology for choosing design parameters of level-crossing analog-
to-digital converters (LC-ADCs) is presented that improves sampling accuracy and reduces …

A 148-nW reconfigurable event-driven intelligent wake-up system for AIoT nodes using an asynchronous pulse-based feature extractor and a convolutional neural …

Z Wang, Y Liu, P Zhou, Z Tan, H Fan… - IEEE Journal of Solid …, 2021 - ieeexplore.ieee.org
This article presents a 148-nW always-on wake-up system that drastically reduces the
system power consumption of Internet of Things (IoT) sensor nodes while oftentimes …

Pseudo Asynchronous Level Crossing adc for ecg Signal Acquisition

T Marisa, T Niederhauser, A Haeberlin… - IEEE transactions on …, 2017 - ieeexplore.ieee.org
A new pseudo asynchronous level crossing analogue-to-digital converter (ADC) architecture
targeted for low-power, implantable, long-term biomedical sensing applications is …

Continuous time level crossing sampling ADC for bio-potential recording systems

W Tang, A Osman, D Kim, B Goldstein… - … on Circuits and …, 2013 - ieeexplore.ieee.org
In this paper we present a fixed window level crossing sampling analog to digital convertor
for bio-potential recording sensors. This is the first proposed and fully implemented fixed …