Abstract
An application specific integrated circuit (ASIC) capable of delivering charge to multiple electrodes in unison has been developed. The ASIC is designed to function as part of an epi-retinal prosthesis driving an array of electrodes in a hexagonal mosaic. This unique organization of electrodes and the use of current sources and sinks is implemented to reduce the electrical cross-talk that occurs when many electrodes are activated in unison. Due to the large numbers of electrodes needed to provide useful vision to implantees, the interleaving strategies used in cochlear implants will not suffice for a vision prosthesis, where the "frame rate" is important for acceptable perceptual outcomes. This paper describes the design, and architectural approaches and performance testing of the developed ASIC.
| Original language | English |
|---|---|
| Title of host publication | 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'06 |
| Pages | 4647-4650 |
| Number of pages | 4 |
| DOIs | |
| Publication status | Published - 2006 |
| Externally published | Yes |
| Event | International Conference of the IEEE Engineering in Medicine and Biology Society 2006 - Marriott Hotel, New York, United States of America Duration: 31 Aug 2006 → 3 Sep 2006 Conference number: 28 |
Conference
| Conference | International Conference of the IEEE Engineering in Medicine and Biology Society 2006 |
|---|---|
| Abbreviated title | EMBC 2006 |
| Country | United States of America |
| City | New York |
| Period | 31/08/06 → 3/09/06 |
| Other | International Conference of the IEEE Engineering in Medicine and Biology Society |
Cite this
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Microelectronic retinal prosthesis : I. A neurostimulator for the concurrent activation of multiple electrodes. / Wong, Y. T.; Dommel, N.; Preston, P. J.; Lehmann, T.; Lovell, N. H.; Suaning, G. J.
28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'06. 2006. p. 4647-4650 4029969.Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review
TY - GEN
T1 - Microelectronic retinal prosthesis
T2 - I. A neurostimulator for the concurrent activation of multiple electrodes
AU - Wong, Y. T.
AU - Dommel, N.
AU - Preston, P. J.
AU - Lehmann, T.
AU - Lovell, N. H.
AU - Suaning, G. J.
PY - 2006
Y1 - 2006
N2 - An application specific integrated circuit (ASIC) capable of delivering charge to multiple electrodes in unison has been developed. The ASIC is designed to function as part of an epi-retinal prosthesis driving an array of electrodes in a hexagonal mosaic. This unique organization of electrodes and the use of current sources and sinks is implemented to reduce the electrical cross-talk that occurs when many electrodes are activated in unison. Due to the large numbers of electrodes needed to provide useful vision to implantees, the interleaving strategies used in cochlear implants will not suffice for a vision prosthesis, where the "frame rate" is important for acceptable perceptual outcomes. This paper describes the design, and architectural approaches and performance testing of the developed ASIC.
AB - An application specific integrated circuit (ASIC) capable of delivering charge to multiple electrodes in unison has been developed. The ASIC is designed to function as part of an epi-retinal prosthesis driving an array of electrodes in a hexagonal mosaic. This unique organization of electrodes and the use of current sources and sinks is implemented to reduce the electrical cross-talk that occurs when many electrodes are activated in unison. Due to the large numbers of electrodes needed to provide useful vision to implantees, the interleaving strategies used in cochlear implants will not suffice for a vision prosthesis, where the "frame rate" is important for acceptable perceptual outcomes. This paper describes the design, and architectural approaches and performance testing of the developed ASIC.
UR - http://www.scopus.com/inward/record.url?scp=34047146508&partnerID=8YFLogxK
U2 - 10.1109/IEMBS.2006.259606
DO - 10.1109/IEMBS.2006.259606
M3 - Conference Paper
SN - 1424400325
SN - 9781424400324
SP - 4647
EP - 4650
BT - 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'06
ER -