Other

The Johns Hopkins University

Zaven Kalayjian

Andreas G Andreou

Ronald Eugene Reedy

Gene Y Fridman

Charles Coleman Della Santina

Philippe O Pouliquen

Ravindra A Athale

Bryce Chiang

George J Simonis

Alyssa Apsel

Julius Georgiou

A multichannel vestibular prosthesis includes a sensor system and a microcontroller configured to communicate with the sensor system to receive sensor signals from the sensor system while in operation. The microcontroller is configured to provide control signals in response to the sensor signals. The multichannel vestibular prosthesis also includes a neuroelectronic interface integrated circuit configured to communicate with the microcontroller to receive the control signals, and a plurality of electrodes electrically connected to the neuroelectronic interface integrated circuit. The neuroelectronic interface integrated circuit includes a digital controller configured to communicate with the microcontroller, a plurality of digital-to-analog converters configured to communicate with the digital controller, and a plurality of analog current control circuits, each constructed to communicate with a respective one of the plurality of digital-to-analog converters. Each of the plurality of analog current control circuits can be electrically connected directly or under software control to a respective one of a plurality of electrodes for delivering electrical stimuli to at least one vestibular nerve, and the digital controller is configured to control amplitudes, frequencies, polarities and durations of currents to be delivered to any combination of the plurality of electrical leads.

High-voltage CMOS neuroelectronic interface for a multichannel vestibular prosthesis

An integrated electronic-optoelectronic module comprising: an ultrathin silicon-on-sapphire composite substrate; at least one electronic device fabricated in the ultrathin silicon; and at least one optoelectronic device bonded to the ultrathin silicon-on-sapphire composite substrate and in electrical communication with the at least one electronic device fabricated in the ultrathin silicon layer. For example, VCSELs and photodetectors are integrated with CMOS electronic circuitry to provide useful modules for electro-optical interconnects for computing and switching systems.

Integrated electronic-optoelectronic devices and method of making the same

Growing community of inventors

Gaithersburg, MD, United States of America

Zaven Kalayjian