Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 14, 2015
Patent Application Number
13796480
Date Filed
March 12, 2013
Patent Citations Received
Patent Primary Examiner
Patent abstract
A magnetic field transmitter, especially a transmitter used in conjunction with wireless communications earplugs. In one embodiment, a plate of magnetic material is used behind a coil of electrical conductor to improve the efficiency of the transmitter and to provide electrical and magnetic shielding. The specific dimensions and characteristics of the preferred embodiment of the transmitter described herein provide for efficient wireless communications.
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