The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 14, 2017
Filed:
Oct. 08, 2014
Etymotic Research, Inc., Elk Grove Village, IL (US);
Mead C. Killion, Elk Grove Village, IL (US);
Charles J. Aldous, Bensenville, IL (US);
Viorel Drambarean, Lincolnwood, IL (US);
Donald Wilson, Barrington, IL (US);
Jonathan K. Stewart, Bloomingdale, IL (US);
ETYMOTIC RESEARCH, INC., Elk Grove Village, IL (US);
Abstract
The present technology relates to an earphone apparatus adapted for use in audiometry examinations. The earphone apparatus comprises a housing and a receiver having an acoustic output adapted to connect with an audio signal source. The earphone apparatus can also include a circuit board with an electrical equalization network connected to the receiver. A coupling can be connected to the acoustic output of the receiver. A sound tube can be connected to the acoustic output and extends out from the housing to an ear piece. The earphone also includes a resonance cancellation assembly comprising a damping chamber and a tubing section acoustically connecting the damping chamber to the coupling. The damping chamber can provide an acoustic compliance to the sound delivered by the receiver. The earphone can also comprise an electrical connector with a protector that is adapted to connect with a female connector delivering electrical power.