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Ear canal microphone

  • US 5,987,146 A
  • Filed: 04/03/1997
  • Issued: 11/16/1999
  • Est. Priority Date: 04/03/1997
  • Status: Expired due to Term
First Claim
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1. An open ear canal hearing aid system, comprising:

  • a first ear canal tube sized for positioning in an ear canal so that the ear canal is at least partially open for directly receiving ambient sounds, wherein said first ear canal tube has a first end in said ear canal with an opening for receiving said ambient sounds and a second end connected to an input of a microphone;

    sound processing means for processing the ambient sound signals produced by said microphone within a predetermined amplitude and frequency range to produce processed sounds; and

    a second ear canal tube sized for positioning in the ear canal so that the ear canal is at least partially open for directly receiving ambient sounds, wherein said second ear canal tube transports processed sounds into the ear canal.

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