Patent · US Active

Flat speaker

US8989430B2 · kind B2 · utility

2Cited by

6References

10Claims

0Family size

Assignee

AIRBUS OPERATIONS LIMITED · DE

Inventors

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

Key dates

Filing date	Oct 26, 2009
Grant date	Mar 24, 2015
Priority date	—
Expiry date	May 9, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04R2207/021
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

The present invention provides a flat speaker, in particular in the aerospace sector, with a panel for generating acoustic signals by vibration of the same, and a vibration exciter which is connected to a panel and excites this to vibrate. Here the panel has an edge stiffening. This provides the panel with the required stiffness, particularly against hand pressures, but at the same it guarantees high energy efficiency of the flat speaker.

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