TY - GEN
T1 - Implantable power and data receiver and neuro-stimulus chip for a retinal prosthesis system
AU - Clements, Mark
AU - Vichienchom, Kasin
AU - Liu, Wentai
AU - Hughes, Chris
AU - McGucken, Elliot
AU - DeMarco, Chris
AU - Mueller, Jeff
AU - Humayun, Mark
AU - De Juan, Eugene
AU - Weiland, Jim
AU - Greenberg, Rob
PY - 1999
Y1 - 1999
N2 - In certain diseases of the retina, the photoreceptor cells do not respond to light and thus cause blindness. We describe an electronic retinal prosthesis system that can provide some vision to patients by direct electrical stimulation of the retinal neurons. Power and image data are transferred to the implanted stimulator through a wireless inductive link. The system consists of an external video camera with image processing and encoding hardware and a power and data transmitter. Implanted in the eye are power and data receivers, stimulus circuits, and electrode array. The most recent prototype implant device, implemented in 1.2 micron CMOS, implements demodulation and decoding of the data stream and produces the biphasic current stimulus pulses for an array of 100 retinal electrodes at video frame rates.
AB - In certain diseases of the retina, the photoreceptor cells do not respond to light and thus cause blindness. We describe an electronic retinal prosthesis system that can provide some vision to patients by direct electrical stimulation of the retinal neurons. Power and image data are transferred to the implanted stimulator through a wireless inductive link. The system consists of an external video camera with image processing and encoding hardware and a power and data transmitter. Implanted in the eye are power and data receivers, stimulus circuits, and electrode array. The most recent prototype implant device, implemented in 1.2 micron CMOS, implements demodulation and decoding of the data stream and produces the biphasic current stimulus pulses for an array of 100 retinal electrodes at video frame rates.
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M3 - Conference contribution
AN - SCOPUS:0032715684
SN - 0780354729
T3 - Proceedings - IEEE International Symposium on Circuits and Systems
SP - I-194 - I-197
BT - Proceedings - IEEE International Symposium on Circuits and Systems
PB - IEEE
T2 - Proceedings of the 1999 IEEE International Symposium on Circuits and Systems, ISCAS '99
Y2 - 30 May 1999 through 2 June 1999
ER -