Title :
A retinal prosthetic device using a pulse-frequency-modulation CMOS image sensor
Author :
Ohta, J. ; Furumiya, T. ; Ng, D.C. ; Uehara, A. ; Kagawa, K. ; Tokuda, T. ; Nunoshita, M.
Author_Institution :
Nara Institute of Science and Technology (NAIST)
Abstract :
This paper describes a retinal prosthetic device using a pulse frequency modulation (PFM) based photosensor with a standard CMOS technology and its modification to stimulate retinal cells effectively. A 32x32-pixel PFM photosensor array chip have been fabricated using 0.6 μm CMOS technology and demonstrated the improved functions.
Keywords :
CMOS image sensors; CMOS technology; Displays; Electrodes; Frequency; Light emitting diodes; Prosthetics; Pulse modulation; Retina; Visualization;
Conference_Titel :
Design Automation Conference, 2004. Proceedings of the ASP-DAC 2004. Asia and South Pacific
Conference_Location :
Yohohama, Japan
Print_ISBN :
0-7803-8175-0
DOI :
10.1109/ASPDAC.2004.1337643
