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:
Dec. 23, 2003
Filed:
Mar. 07, 2002
Lionel Cimaz, Servon sur Vilaine, FR;
Laurent Steenackers, Rennes, FR;
Christian Bernard Gautier, Rennes, FR;
Philippe Organo, Rennes, FR;
Mitsubishi Electric Telecom Europe, Nanterre, FR;
Abstract
The electrical apparatus ( ) in particular a telephone comprises a box ( ) and an electro-acoustic transducer ( ) disposed in said box ( ). Said box ( ) comprises a bearing zone ( ) supporting an ear of a user, said bearing zone ( ) comprising an exit aperture ( ) of said electro-acoustic transducer ( ). Said box ( ) furthermore comprises a decompression aperture ( ) made through said bearing zone ( ). The electrical apparatus ( ) comprises an essentially sealed resonant enclosure ( ), inside which is disposed said electro-acoustic transducer ( ). Said enclosure ( ) comprises an interference aperture ( ) made through a wall ( ) of said enclosure, and a leakage aperture ( ) linking said rear volume ( ) to the outside. Said interference aperture ( ) emerges through said bearing zone ( ). Said leakage aperture ( ) emerges through a zone separate from said bearing zone ( ). Said decompression aperture ( ) emerges outside said enclosure ( ).