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Systems design of a high resolution retinal prosthesis

Weiland, James D. and Fink, Wolfgang and Humayun, Mark S. and Liu, Wentai and Li, Wen and Sivaprakasam, Mohanasankar and Tai, Yu-Chong and Tarbell, Mark A. (2008) Systems design of a high resolution retinal prosthesis. In: 2008 IEEE International Electron Devices Meeting. IEEE , Piscataway, NJ, pp. 1-4. ISBN 9781424423774.

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Simulations of artificial vision suggest that 1000 electrodes may be required to restore vision to individuals with diseases of the outer retina. In order to achieve such an implant, new technology is needed, since the state-of-the-art implantable neural stimulator has at most 22 contacts with neural tissue. Considerable progress has been made towards that goal with the development of image processing, microelectronics, and polymer based MEMS. An image processing system has been realized that is capable of real-time implementation of image decimation and filtering (for example, edge detection). Application specific integrated circuits (ASICs) have been designed and tested to demonstrate closed loop power control and efficient microstimulation. A novel packaging process has been developed that is capable of simultaneously forming communication coils, interconnects, and stimulating electrodes.

Item Type:Book Section
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Humayun, Mark S.0000-0002-5830-5208
Tai, Yu-Chong0000-0001-8529-106X
Additional Information:© 2008 IEEE. This material is based on work supported by the National Science Foundation under Grant No. EEC-0310723.
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Record Number:CaltechAUTHORS:20190322-120334812
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Official Citation:J. D. Weiland et al., "Systems design of a high resolution retinal prosthesis," 2008 IEEE International Electron Devices Meeting, San Francisco, CA, 2008, pp. 1-4. doi: 10.1109/IEDM.2008.4796682
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:94058
Deposited By: George Porter
Deposited On:25 Mar 2019 19:42
Last Modified:09 Mar 2020 13:18

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