Hearing aid
First Claim
1. A hearing aid comprising a miniature stereophonic microphone having a pair of channels, means for retaining the microphone at a central location at the top of the head, a stereophonic integrated circuit connected to the output of the microphone comprising stereophonic amplifiers, and further including electroacoustic transducers for disposition at each of the ears of the user connected to the outputs of the amplifiers, conductive means connecting an output of each amplifier to a corresponding electroacoustic transducer, and the stereophonic microphone being covered with bioinert material for retention below the scalp of the user.
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Accused Products
Abstract
A hearing aid having a stereophonic microphone mounted on a flexible base and an adhesive for adhering it to the top of the head. This substantially eliminates the shadow effect encountered when two separate hearing aids are used, one for each ear, which reduces the ability of the wearer to locate the source of sounds originating at an angle from a vertical central plane passing through the nose and axis of the wearer.
22 Citations
7 Claims
- 1. A hearing aid comprising a miniature stereophonic microphone having a pair of channels, means for retaining the microphone at a central location at the top of the head, a stereophonic integrated circuit connected to the output of the microphone comprising stereophonic amplifiers, and further including electroacoustic transducers for disposition at each of the ears of the user connected to the outputs of the amplifiers, conductive means connecting an output of each amplifier to a corresponding electroacoustic transducer, and the stereophonic microphone being covered with bioinert material for retention below the scalp of the user.
Specification