Samenvatting
In making visually impaired people see again, for most cases the only option is to stimulate the visual cortex. In building such a system, it is desired that the communication to/from the implant and powering be done wirelessly to avoid infections. For the downlink, which is sending stimulation data to the implanted electrode, bandpass-sampled binary phase shift keying (BPSK) is chosen due to its potential for low-power consumption at its digital receiver. However, since an inductive link is most suited, designing practical inductive links with a flat band region to avoid poor phase transition and also refining the reset timing for imperfect transition times as well as designing low-power custom 1- bit Analog-to-digital converter is crucial. The bandpass-sampled BPSK system is designed and simulated at circuit level in Cadence using 180 nm CMOS technology at data rates of 0.5-4 Mbps and carrier frequency of 5-12 MHz. The improved bandpass-sampled BPSK system meets the requirements on data-rate, low-power consumption and robustness and is an integral part of the overall wireless communication and powering of the implanted intracortical visual prosthesis.
Originele taal-2 | Engels |
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Titel | 2019 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2019 |
Plaats van productie | Piscataway |
Uitgeverij | Institute of Electrical and Electronics Engineers |
Aantal pagina's | 5 |
ISBN van elektronische versie | 9781538613115 |
ISBN van geprinte versie | 978-1-5386-1311-5 |
DOI's | |
Status | Gepubliceerd - 7 okt 2019 |
Evenement | 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2019) - City Cube Berlin, Berlin, Duitsland Duur: 23 jul 2019 → 27 jul 2019 https://embc.embs.org/2019/ |
Congres
Congres | 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2019) |
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Verkorte titel | EMBC 2019 |
Land | Duitsland |
Stad | Berlin |
Periode | 23/07/19 → 27/07/19 |
Internet adres |