A Power and Data Link for a Wireless-Implanted Neural Recording System
A wireless cortical neural recording system with a miniature-implanted package is needed in a variety of neuroscience and biomedical applications. Toward that end, we have developed a transcutaneous two-way communication and power system for wireless neural recording. Wireless powering and forward d...
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Published in | IEEE transactions on biomedical engineering Vol. 59; no. 11; pp. 3255 - 3262 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
United States
IEEE
01.11.2012
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Subjects | |
Online Access | Get full text |
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Summary: | A wireless cortical neural recording system with a miniature-implanted package is needed in a variety of neuroscience and biomedical applications. Toward that end, we have developed a transcutaneous two-way communication and power system for wireless neural recording. Wireless powering and forward data transmission (into the body) at 1.25 Mbps is achieved using a frequency-shift keying modulated class E converter. The reverse telemetry (out of the body) carrier frequency is generated using an integer-N phase-locked loop, providing the necessary wideband data link to support simultaneous reverse telemetry from multiple implanted devices on separate channels. Each channel is designed to support reverse telemetry with a data rate in excess of 3 Mbps, which is sufficient for our goal of streaming 16 channels of raw neural data. We plan to incorporate this implantable power and telemetry system in a 1-cm diameter single-site cortical neural recording implant. |
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ISSN: | 0018-9294 1558-2531 |
DOI: | 10.1109/TBME.2012.2214385 |