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US 2001/0055403 A1Published application
High frequency loudspeaker
AssigneeHarman Audio Electronic Systems GmbH
InventorsWolfgang Bachmann, Gerhard Krump, Hans-Juergen Regl, Andreas Zinganki
Life of this patent
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Abstract
A tweeter with a light, thin sandwich plate which can be excited into multiple reflected bending waves, and a driver which makes a vibrating contact and excites the sandwich plate, where the driver is designed for higher sound frequencies and the sandwich plate for propagating bending waves with low damping. The sandwich plate is freely carried with low damping by holding elements, where the latter are designed to be low damping at higher sound frequencies.
Claims22
A tweeter comprising:
- a light, freely carried thin sandwich plate (3, 20, 39, 60) which can be excited into multiple reflected bending waves;
- and
- at least one driver (1, 13, 14, 15, 26, 27, 28, 40, 41) which makes vibrating contact with and excites the sandwich plate (3, 20, 39, 60),
- wherein the driver (1, 13, 14, 15, 26, 27, 28, 40, 41) is designed to excite at higher sound frequencies, the sandwich plate (3, 20, 39, 60) is designed for the propagation of bending waves with low damping, the sandwich plate (3, 20, 39, 60) is freely supported by holding elements (12, 24, 25, 34, 35) with low damping, and that the holding elements (12, 24, 25, 34, 35) are designed to be low damping at higher sound frequencies.
1 more element
Dependencies are inferred from the claim text.