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Directional hearing enhancement systems

  • US 20040208333A1
  • Filed: 04/15/2004
  • Published: 10/21/2004
  • Est. Priority Date: 04/15/2003
  • Status: Active Grant
First Claim
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1. A hearing enhancement system for a user comprising:

  • an interface unit that has a directional speaker attachable to clothing worn by the user and a microphone;

    wherein the microphone receives input audio signals, which are transformed into ultrasonic signals;

    the speaker transmits the ultrasonic signals;

    at least a portion of the ultrasonic signals is transformed into output audio signals by interaction with air;

    the speaker directs the output audio signals towards at least one ear of the user from the worn position of the speaker; and

    a portion of the input audio signals is amplified more than another portion to enhance the hearing of the user.

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