Patent number: 9083388

Transmitter with improved sensitivity and shielding

Original Assignee: Red Tail Hawk Corporation

Field of technology: Electronics

Patent granted on: Tue, 14 Jul 2015

Patent drawing

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.