IT1087757B - Cortical hearing aid - had harmonic generator connected between AF pre-amplifier and AF amplifier - Google Patents

Cortical hearing aid - had harmonic generator connected between AF pre-amplifier and AF amplifier

Info

Publication number
IT1087757B
IT1087757B IT2822177A IT2822177A IT1087757B IT 1087757 B IT1087757 B IT 1087757B IT 2822177 A IT2822177 A IT 2822177A IT 2822177 A IT2822177 A IT 2822177A IT 1087757 B IT1087757 B IT 1087757B
Authority
IT
Italy
Prior art keywords
amplifier
hearing aid
cortical
distortion
hearing
Prior art date
Application number
IT2822177A
Other languages
Italian (it)
Original Assignee
Electro Physical Research Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Electro Physical Research Inc filed Critical Electro Physical Research Inc
Priority to IT2822177A priority Critical patent/IT1087757B/en
Application granted granted Critical
Publication of IT1087757B publication Critical patent/IT1087757B/en

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  • Electrotherapy Devices (AREA)

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 called a "cortical hearing aid". The ability of the person to recognize sounds with a cortical hearing aid is 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.
IT2822177A 1977-10-03 1977-10-03 Cortical hearing aid - had harmonic generator connected between AF pre-amplifier and AF amplifier IT1087757B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT2822177A IT1087757B (en) 1977-10-03 1977-10-03 Cortical hearing aid - had harmonic generator connected between AF pre-amplifier and AF amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2822177A IT1087757B (en) 1977-10-03 1977-10-03 Cortical hearing aid - had harmonic generator connected between AF pre-amplifier and AF amplifier

Publications (1)

Publication Number Publication Date
IT1087757B true IT1087757B (en) 1985-06-04

Family

ID=11223172

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2822177A IT1087757B (en) 1977-10-03 1977-10-03 Cortical hearing aid - had harmonic generator connected between AF pre-amplifier and AF amplifier

Country Status (1)

Country Link
IT (1) IT1087757B (en)

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