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Earphone for an RF transmitting device

  • US 6,411,722 B1
  • Filed: 05/11/2000
  • Issued: 06/25/2002
  • Est. Priority Date: 05/11/2000
  • Status: Expired due to Fees
First Claim
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1. An acoustic earphone assembly for transmitting sound from a transducer sound source, constituted by an earphone connected by wires to a cellular phone provided with a transmitter that radiates radio-frequency energy, said assembly comprising:

  • a sound transmitting tube extending between an ear tip member for engaging the external ear canal of a user of the cellular phone, and a sound receiving end fitted to said sound source, and a Faraday cage enveloping the earphone to interpose a radio-frequency protective shield between the earphone and the user.

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