Please use this identifier to cite or link to this item: https://doi.org/10.1109/TBCAS.2012.2200103
Title: A system verification platform for high-density epiretinal prostheses
Authors: Chen, K.
Lo, Y.-K.
Yang, Z. 
Weiland, J.D.
Humayun, M.S.
Liu, W.
Keywords: Differential phase shift keying (DPSK)
dual-band telemetry
electric stimulation
neural prosthesis
retinal prosthesis
visual prosthesis
wireless power transmission
wireless telemetry
Issue Date: 2013
Source: Chen, K., Lo, Y.-K., Yang, Z., Weiland, J.D., Humayun, M.S., Liu, W. (2013). A system verification platform for high-density epiretinal prostheses. IEEE Transactions on Biomedical Circuits and Systems 7 (3) : 326-337. ScholarBank@NUS Repository. https://doi.org/10.1109/TBCAS.2012.2200103
Abstract: Retinal prostheses have restored light perception to people worldwide who have poor or no vision as a consequence of retinal degeneration. To advance the quality of visual stimulation for retinal implant recipients, a higher number of stimulation channels is expected in the next generation retinal prostheses, which poses a great challenge to system design and verification. This paper presents a system verification platform dedicated to the development of retinal prostheses. The system includes primary processing, dual-band power and data telemetry, a high-density stimulator array, and two methods for output verification. End-to-end system validation and individual functional block characterization can be achieved with this platform through visual inspection and software analysis. Custom-built software running on the computers also provides a good way for testing new features before they are realized by the ICs. Real-time visual feedbacks through the video displays make it easy to monitor and debug the system. The characterization of the wireless telemetry and the demonstration of the visual display are reported in this paper using a 256-channel retinal prosthetic IC as an example. © 2007-2012 IEEE.
Source Title: IEEE Transactions on Biomedical Circuits and Systems
URI: http://scholarbank.nus.edu.sg/handle/10635/54831
ISSN: 19324545
DOI: 10.1109/TBCAS.2012.2200103
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