Hearing aid and system for use with cellular telephones

Details Hearing aid and system for use with cellular telephones Hearing aid and system for use with cellular telephones

1996-08-22

1998-06-16

Kuntz, Curtis

Electrical audio signal processing systems and devices

Sound effects

Reverberators

381 686, 381187, 379430, H04R 2500

Patent

active

057683972

ABSTRACT:
The light output of an IR LED mounted on a cellular telephone is modulated by the audio output of the telephone and made incident upon a photodiode mounted to an ITE-type or canal-type hearing aid. The electrical signal output from the photodiode is routed through a bandpass filter, demodulated in a demodulator and amplified and/or processed in the hearing aid circuit.

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