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A 950 nW Analog-Based Data Reduction Chip for Wearable EEG Systems in Epilepsy

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Title: A 950 nW Analog-Based Data Reduction Chip for Wearable EEG Systems in Epilepsy
Authors: Rodriguez Villegas, E
Iranmanesh, S
Item Type: Journal Article
Abstract: Long-term electroencephalogram (EEG) monitoring is an important tool used for the diagnosis of epilepsy. Truly Wearable EEG can be considered as the future of ambulatory EEG units, which are the current standard for long-term EEG monitoring. Replacing these short lifetime, bulky units with long-lasting miniature and wearable devices which can be easily worn by patients will result in more EEG data being acquired for longer monitoring periods. This paper presents an analog-based data reduction integrated circuit that would reduce the amount of power required to transmit EEG data by identifying the sections of data that are interesting for diagnostic purposes while discarding the background activity. Using the data reduction system as part of a miniature wireless, EEG monitoring unit would yield significant reductions in power consumption since the transmitter will only be switched ON based on the data reduction system output. A system prototype chip has been fabricated in a 0.35 μm CMOS process. The system consumes 760 nA from a 1.25 V supply and is able to achieve a sensitivity of 87%, while transmitting 45% of the overall EEG data.
Issue Date: 21-Jul-2017
Date of Acceptance: 21-Jun-2017
URI: http://hdl.handle.net/10044/1/48764
DOI: https://dx.doi.org/10.1109/JSSC.2017.2720636
ISSN: 0018-9200
Publisher: Institute of Electrical and Electronics Engineers
Start Page: 2362
End Page: 2373
Journal / Book Title: IEEE Journal of Solid-State Circuits
Volume: 52
Issue: 9
Sponsor/Funder: Commission of the European Communities
Funder's Grant Number: Contract No. 239749
Keywords: Science & Technology
Technology
Engineering, Electrical & Electronic
Engineering
Continuous wavelet transform (CWT)
data reduction
electroencephalogram (EEG)
epilepsy
epileptic spike detection
long-term EEG monitoring
low-power electronics
spikes
wearable EEG (WEEG)
CONTINUOUS WAVELET TRANSFORM
AUTOMATIC DETECTION
ACQUISITION SOC
WIRELESS
ELECTROENCEPHALOGRAPHY
CLASSIFICATION
PROCESSOR
TRANSCEIVER
ALGORITHM
NETWORKS
0906 Electrical And Electronic Engineering
Electrical & Electronic Engineering
Publication Status: Published
Appears in Collections:Faculty of Engineering
Electrical and Electronic Engineering



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