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  4. A Wearable Real-Time System for Simultaneous Wireless Power and Data Transmission to Cortical Visual Prosthesis
 
research article

A Wearable Real-Time System for Simultaneous Wireless Power and Data Transmission to Cortical Visual Prosthesis

Barbruni, Gian Luca  
•
Rodino, Francesca  
•
Ros, Paolo Motto
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June 1, 2024
Ieee Transactions On Biomedical Circuits And Systems

Wireless, miniaturised and distributed neural interfaces are emerging neurotechnologies. Although extensive research efforts contribute to their technological advancement, the need for real-time systems enabling simultaneous wireless information and power transfer toward distributed neural implants remains crucial. Here we present a complete wearable system including a software for real-time image capturing, processing and digital data transfer; an hardware for high radiofrequency generation and modulation via amplitude shift keying; and a 3-coil inductive link adapt to operate with multiple miniaturised receivers. The system operates in real-time with a maximum frame rate of 20 Hz, reconstructing each frame with a matrix of 32 x 32 pixels. The device generates a carrier frequency of 433.92 MHz. It transmits the highest power of 32 dBm with a data rate of 6 Mbps and a variable modulation index as low as 8%, thus potentially enabling wireless communication with 1024 miniaturised and distributed intracortical microstimulators. The system is primarily conceived as an external wearable device for distributed cortical visual prosthesis covering a visual field of 20(degrees). At the same time, it is modular and versatile, being suitable for multiple applications requiring simultaneous wireless information and power transfer to large-scale neural interfaces.

  • Details
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Type
research article
DOI
10.1109/TBCAS.2024.3357626
Web of Science ID

WOS:001236736100004

Author(s)
Barbruni, Gian Luca  
Rodino, Francesca  
Ros, Paolo Motto
Demarchi, Danilo
Ghezzi, Diego
Carrara, Sandro  
Date Issued

2024-06-01

Publisher

Ieee-Inst Electrical Electronics Engineers Inc

Published in
Ieee Transactions On Biomedical Circuits And Systems
Volume

18

Issue

3

Start page

580

End page

591

Subjects

Technology

•

Real-Time Systems

•

Coils

•

Wireless Communication

•

Visual Prosthesis

•

Substrates

•

Simultaneous Wireless Information And Power Transfer

•

Visualization

•

Inductive Power Transfer

•

Rf Transmitter

•

Ask Modulator

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Swipt

•

Implantable Medical Device

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Distributed Neurostimualtors

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Cortical Visual Prostheses

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
SCI-STI-SC  
FunderGrant Number

Interdisciplinary Seed Fund from École Polytechnique Fédérale de Lausanne

Available on Infoscience
June 19, 2024
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/208715
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