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:
Nov. 28, 2006
Filed:
Sep. 04, 2003
Stephane Dufosse, Cormeilles en Parisis, FR;
Jean-christophe Villain, Colombes, FR;
Eric Menu, Paris, FR;
Yves Lebaudour, Franconville, FR;
Stephane Dufosse, Cormeilles en Parisis, FR;
Jean-Christophe Villain, Colombes, FR;
Eric Menu, Paris, FR;
Yves Lebaudour, Franconville, FR;
TCL Communication Technology Holdings Limited, Hong Kong, CN;
Abstract
In a structural arrangement for radio communication terminals comprising a casing in which are disposed at least a first sound transducer having an earpiece function and a second sound transducer having a loudspeaker function, the two transducers being respectively connected to two opposite faces of a printed circuit card, and each transducer comprising at least one resonating membrane vibrating in a front acoustical cavity and a rear acoustical cavity. The rear acoustical cavities of the transducers communicate with each other via orifices formed in the printed circuit card to form a twin rear acoustical cavity.