Abstract: The invention presents a sound reproduction device which operates in accordance with the flexural wave principle. Such devices have in common that a panel 10 is provided in which flexural waves are produced by a drive arrangement 16. The drive arrangements 16 in the state of the art are connected to one of the surfaces of the panel 10 and are held by a support structure which functions as a countersupport. Such support structures either hinder the propagation of the flexural waves along the surface of the panel 10 and/or lead to an increase in the constructed depth of such a sound reproduction device. To avoid these disadvantages of the state of the art, the drive system 16 is located in a cutout 15 of the panel 10.
Type:
Grant
Filed:
December 18, 1998
Date of Patent:
August 14, 2001
Assignee:
Harman Electronic Systems GmbH
Inventors:
Wolfgang Bachmann, Gerhard Krump, Hans-Jürgen Regl