Multi-frequency system and method for enhancing auditory stimula

Details Multi-frequency system and method for enhancing auditory stimula Multi-frequency system and method for enhancing auditory stimula

1979-09-24

1981-08-18

Robinson, Thomas A.

179107BC, H04R 2502

Patent

active

042848563

ABSTRACT:
A plurality of carrier signals are modulated by pulses corresponding to signals in audio frequency bands. The carrier signals are transmitted to a receiver having independent channels for receiving and demodulating the transmitted signals. The detected pulses are applied to electrodes on a prosthetic device implanted in the cochlea with the electrodes selectively positioned in the cochlea to stimulate regions having a desired frequency response. The pulses have a frequency which corresponds to the frequency of signals in an audio band and a pulse width which corresponds to the amplitude of signals in the audio band.

REFERENCES:
patent: 3209081 (1965-09-01), Ducote et al.
patent: 3449768 (1969-06-01), Doyle
patent: 3752929 (1973-08-01), Fletcher
"Multielectrode Intracochlear Implants", Schindler et al., Arch Otolaryngol, vol. 103, Dec. 1977, pp. 691-699.
"A Multiple-Electrode Array for Cochlear Implant", Clark et al., J. Laryngol, Otol, 90/7, 1976, pp. 623-627.

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