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Hearing aid with magnetostrictive electroactive sensor

  • US 8,649,541 B2
  • Filed: 07/11/2011
  • Issued: 02/11/2014
  • Est. Priority Date: 07/11/2011
  • Status: Active Grant
First Claim
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1. A hearing aid, comprising:

  • a hearing aid circuit including a microphone, a receiver, and an audio processor coupled between the microphone and the receiver;

    a rechargeable battery coupled to the hearing aid circuit to power the hearing aid circuit;

    a magnetostrictive electroactive (ME) sensor configured to generate a power signal in response to a first magnetic field and generate a driving signal in response to a second magnetic field or a pressure; and

    a sensor processing circuit coupled to the ME sensor, the sensor processing circuit including;

    a battery charging circuit coupled to the rechargeable battery and configured to charge the rechargeable battery using the power signal; and

    a switch coupled to the hearing aid circuit and configured to control the hearing aid circuit using the driving signal.

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