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Two-way communications earset

  • US 5,448,637 A
  • Filed: 03/30/1995
  • Issued: 09/05/1995
  • Est. Priority Date: 10/20/1992
  • Status: Expired due to Term
First Claim
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1. A one piece two-way simultaneous voice communication signals transmitting and receiving device comprising:

  • a receiver responding to an incoming electrical signal of the two-way simultaneous voice communication signals to emit sound to the ear canal of a user; and

    a transmitter, attached to the receiver for generating an outgoing electrical signal of the two-way simultaneous voice communication signals and located outside the ear canal, comprising;

    a microphone having two sound receiving ends and having bidirectional directivity for sound pickup with one of the two directions of the bidirectional directivity aimed toward the mouth of the user;

    a housing containing the microphone substantially at a central portion thereof and having first and second sound receiving ends corresponding to respective ones of the two sound receiving ends of the microphone; and

    two acoustically absorbing elements placed within the housing between the two sound receiving ends of the microphone and the first and second sound receiving ends of the housing, respectively, and absorbing signals that cause leaked sound feedback from the receiver to the microphone.

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