The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 25, 2014
Filed:
Jul. 01, 2008
Bassem Baffoun, Gerlingen, DE;
Reinhard Lerch, Heroldsberg, DE;
Alexander Sutor, Erlangen, DE;
Christian Weistenhöfer, Bubenreuth, DE;
Bassem Baffoun, Gerlingen, DE;
Reinhard Lerch, Heroldsberg, DE;
Alexander Sutor, Erlangen, DE;
Christian Weistenhöfer, Bubenreuth, DE;
Siemens Audiologische Technik GmbH, Erlangen, DE;
Abstract
An acoustic actuator includes a support layer, in which a self-supporting structure is defined and connected to the support layer by at least two suspensions, at least one magnetostrictive layer which has been disposed on the support layer and is provided at least in part on the self-supporting structure, and a device for generating a magnetic field in the magnetostrictive layer. The way in which the loudspeaker works is based on the magnetostrictive effect, which results in a change in the dimensions of the self-supporting structure in an alternating magnetic field. This causes the self-supporting structure to oscillate. A method for producing an acoustic actuator is also provided.