Hearing aid

Details Hearing aid Hearing aid

1976-04-29

1977-10-04

Stellar, George G.

H04R 2500

Patent

active

040525724

ABSTRACT:
"Hearing" without involving the ear is realized by electrical conduction of the sound-representing signals on a carrier optimally in the frequency range of 15-60 kHz, from an electrode held against a person's head to the auditory cortex and possibly to the auditory nerve. This is here called a "cortical hearing aid". The ability of the person to recognize sounds with a cortical hearing aid is notably enhanced by introduction of significant distortion of the audio signals, especially low-order harmonics of the audio frequencies. The distortion acts as a substitute for distortion ordinarily occurring in the ear but disregarded in the hearing process.

REFERENCES:
patent: 2703344 (1955-03-01), Anderson

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