Title :
An interface chip for power and bidirectional data telemetry in an implantable cochlear microsystem
Author :
Sodagar, Amir M. ; Wise, Kensall D. ; Najafi, Khalil
Author_Institution :
Center for Wireless Integrated Microsyst., Univ. of Michigan, Ann Arbor, MI
fDate :
Nov. 29 2006-Dec. 1 2006
Abstract :
A wireless interface chip is described that transfers power, data, and clock from an external system to a cochlear implant and feeds back neural-response and position information. The forward telemetry front-end of the chip is comprised of a multi-output power regulator, wideband FSK data demodulator, and clock recovery circuit. The reverse telemetry back end consists of a Manchester encoder, an on-off keying modulator, and an antenna driver. A data packet checker is also considered to check the format and contents (parity) of the received data.
Keywords :
bioMEMS; biomedical electronics; biomedical telemetry; demodulators; driver circuits; ear; encoding; frequency shift keying; neurophysiology; prosthetics; Manchester encoder; antenna driver; bidirectional data telemetry; clock recovery circuit; data packet checker; forward telemetry front-end; implantable cochlear microsystem; multioutput power regulator; neural-response; on-off keying modulator; position information; power data telemetry; reverse telemetry back end; wideband FSK data demodulator; wireless interface chip; Bridge circuits; Clocks; Cochlear implants; Demodulation; Driver circuits; Frequency shift keying; Rectifiers; Regulators; Telemetry; Voltage;
Conference_Titel :
Biomedical Circuits and Systems Conference, 2006. BioCAS 2006. IEEE
Conference_Location :
London
Print_ISBN :
978-1-4244-0436-0
Electronic_ISBN :
978-1-4244-0437-7
DOI :
10.1109/BIOCAS.2006.4600293
