A wireless 64-channel ECoG recording Electronic for implantable monitoring and BCI applications: WIMAGINE

Author

Charvet, Guillaume ; Foerster, Michael ; Chatalic, G. ; Michea, A. ; Porcherot, Jean ; Bonnet, Stephane ; Filipe, Silvio ; Audebert, P. ; Robinet, S. ; Josselin, V. ; Reverdy, J. ; D´Errico, Raffaele ; Sauter, Fabien ; Mestais, Corinne ; Benabid, Alim Lou

Author_Institution

CEA/LETI/CLINATEC, Grenoble, France

fYear

2012

fDate

Aug. 28 2012-Sept. 1 2012

Firstpage

783

Lastpage

786

Abstract

A wireless, low power, 64-channel data acquisition system named WIMAGINE has been designed for ElectroCorticoGram (ECoG) recording. This system is based on a custom integrated circuit (ASIC) for amplification and digitization on 64 channels. It allows the RF transmission (in the MICS band) of 32 ECoG recording channels (among 64 channels available) sampled at 1 kHz per channel with a 12-bit resolution. The device is powered wirelessly through an inductive link at 13.56 MHz able to provide 100mW (30mA at 3.3V). This integration is a first step towards an implantable device for brain activity monitoring and Brain-Computer Interface (BCI) applications. The main features of the WIMAGINE platform and its architecture will be presented, as well as its performances and in vivo studies.

Keywords

application specific integrated circuits; biomedical electrodes; brain-computer interfaces; data acquisition; electroencephalography; medical computing; neurophysiology; prosthetics; 12-bit resolution; 32 ECoG recording channels; BCI applications; EEG recording; RF transmission; WIMAGINE platform; brain activity monitoring; brain-computer interface applications; custom integrated circuit; electrocorticogram recording; electroencephalogram recording; frequency 1 kHz; frequency 13.56 MHz; implantable device; implantable monitoring; low power 64-channel data acquisition system; power 100 mW; voltage 3.3 V; wireless 64-channel ECoG recording; Application specific integrated circuits; Brain computer interfaces; Electric potential; Electrodes; Low pass filters; Radio frequency; Wireless communication; Algorithms; Animals; Brain-Computer Interfaces; Electrodes, Implanted; Electroencephalography; Equipment Design; Humans; Monitoring, Physiologic; Neural Prostheses; Primates; Quadriplegia; Radio Waves; Remote Sensing Technology; Telemetry; Wireless Technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society (EMBC), 2012 Annual International Conference of the IEEE

Conference_Location

San Diego, CA

ISSN

1557-170X

Print_ISBN

978-1-4244-4119-8

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/EMBC.2012.6346048

Filename

6346048