Wireless earplug with improved sensitivity and form factor
Patent No. 8,693,720
Issued: April 8, 2014
Inventor: John W. Parkins (Ithaca, NY)
An improved wireless communications earplug for use with a magnetic field transmitter. The wireless earplug has a receiver made of a coil of wire on a magnetic bobbin, mounted in close proximity or in contact with a magnetic case of a speaker. The magnetic case of the speaker serves to increase the magnetic flux through the receiver and improves the efficiency of the earplug. The speaker is acoustically coupled to an eartip, and the earplug may be molded into a custom earplug body.
Reference to Related Applications
This application claims one or more inventions which were disclosed in Provisional Application No. 61/224,531, filed Jul. 10, 2009, entitled "Wireless Earplug with Improved Sensitivity and Form Factor". The benefit under 35 USC .sctn.119(e) of the United States provisional application is hereby claimed, and the aforementioned application is hereby incorporated herein by reference.
This application is a continuation-in-part of copending U.S. application Ser. No. 11/837,129, entitled "Wireless Communications Headset System Employing a Loop Transmitter That Fits Around the Pinna", filed Aug. 10, 2007, and published on Feb. 12, 2009, as US2009/0041285, now US Patent 8,688,036, which claimed the benefit of Provisional Application No. 60/824,091, filed Aug. 31, 2006, entitled "Wireless Communications System Employing a Loop Transmitter That Fits Around The Pinna". The aforementioned applications are hereby incorporated herein by reference.
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