Patents Assigned to Harman Electronic Systems GmbH
  • Patent number: 6275598
    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