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:
Apr. 01, 2008
Filed:
Jun. 11, 2003
Stephane Dedieu, Ottawa, CA;
Hans Beisner, Oxford Mills, CA;
Kiichiro Tanaka, Ottawa, CA;
Philippe Moquin, Ottawa, CA;
Stephane Dedieu, Ottawa, CA;
Hans Beisner, Oxford Mills, CA;
Kiichiro Tanaka, Ottawa, CA;
Philippe Moquin, Ottawa, CA;
Mitel Networks Corporation, , CA;
Abstract
A method of manufacturing a telephony earpiece is provided. The method includes providing a speaker diaphragm and constraining the speaker diaphragm using a cap to provide a thin cavity between the cap and the diaphragm. The first resonance peak of the diaphragm/cavity system is damped by a first slow leak in the cap. The frequency response is built up using a rear resonator in the cap and the high frequency end response is enhanced using a front resonator on an opposite side of said diaphragm as said cap. Positioning of these resonator holes is an important factor. The earpiece is tuned using a second leak to adjust amplitude of low frequency end response.