Patent · US Active

Loudspeaker system for aircraft cabin

US8139795B2 · kind B2 · utility

6Cited by

22References

8Claims

0Family size

Assignee

AIRBUS DEUTSCHLAND GMBH · DE

Inventors

Henning Scheel · Hamburg, DE
Frank Cordes · Neustadt, DE
Benjamin Grenzing · Hamburg, DE

Key dates

Filing date	Oct 12, 2007
Grant date	Mar 20, 2012
Priority date	—
Expiry date	Jan 18, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04R7/045
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A loudspeaker system for an aircraft cabin for passengers has a support structure, which includes multiple flexible flat elements, forming the internal walls of the cabin, and fastening devices for fastening flat elements to the support structure, so that the flat elements may oscillate. At least one acoustic driver is connected to one or more flat elements, to induce a bending movement in the one or more flat elements. The particular flat element may oscillate as an acoustic diaphragm. The acoustic driver has a film-shaped piezoelectric exciter, which is bonded flatly to the flat element. The flat element bonded to an exciter has a first cover layer, a second cover layer, and a core layer between them. The core layer is subdivided in a plane parallel to the first and second cover layers by a horizontal incision in at least one predefined area.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.