Infrared headphones for the hearing impaired

Details Infrared headphones for the hearing impaired Infrared headphones for the hearing impaired

1984-07-09

1986-12-30

Isen, Forester W.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Hearing aid

381 74, 381 25, 381 26, H04R 500, H04R 110

Patent

active

046334980

ABSTRACT:
An infrared headphone with supplemental microphones to aid the hearing impaired allowing the user to hear the significant sounds from the ambient surroundings. In order to suppress the sound intensity of the user's own voice the invention provides for microphones arranged at a distance from each other on a supporting elbow in such a way that when they are mounted on the head of the user they are symmetrically arranged with respect to a median plane of the user's head and the signals emitted from the microphones are conducted in counter-phase with respect to each other.

REFERENCES:
patent: 4192969 (1980-03-01), Iwahara

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