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Hearing aid device

  • US 5,341,433 A
  • Filed: 12/10/1992
  • Issued: 08/23/1994
  • Est. Priority Date: 12/17/1991
  • Status: Expired due to Term
First Claim
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1. In a hearing aid device having a housing containing electrical components, which are selected from a microphone, an amplifier, an earphone, a current source, an on/off switch, a control element, the improvements comprising sensor means being sensitive selectively to one of pressure alone and pressure and position, said sensor means being constructed as a film reactive to variable pressures and composed of laminated polymer layers, wherein one layer is connected with interdigitalizing electrodes and the appertaining other layer is coated with a semiconductor material, said sensor means being arranged on a structure element including an outside surface of the housing, the housing, and a structural element disposed within the housing, said sensor means being utilized as switches and regulators.

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