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Two-way communications earset with filter

  • US 5,844,984 A
  • Filed: 11/21/1994
  • Issued: 12/01/1998
  • Est. Priority Date: 03/19/1992
  • Status: Expired due to Fees
First Claim
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1. A two-way simultaneous voice transmitting and receiving device comprising:

  • a case comprising;

    an enlarged portion adapted to be placed in an ear auricle of a user, the enlarged portion including an insertion portion adapted to be inserted in an ear canal of the user, anda hollow portion extending in a direction away from the ear, wherein the enlarged portion houses a speaker with an output led directly to the ear canal of the user and the hollow portion houses a microphone with a sole audio inlet comprising a hole, and wherein said case is configured to offset said hole of said sole audio inlet relatively far from the mouth of the user; and

    filter means, comprising sound absorbing material having substantial thickness positioned in the hollow portion between the hole of the sole audio inlet and a diaphragm of the microphone, for reducing feedback between the speaker and the microphone.

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