Magnetostrictive microloudspeaker

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United States of America Patent

PATENT NO 8682009
APP PUB NO 20110116663A1
SERIAL NO

12667564

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
SIVANTOS GMBH91058 ERLANGEN

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Baffoun, Bassem Gerlingen, DE 1 2
Lerch, Reinhard Heroldsberg, DE 11 637
Sutor, Alexander Erlangen, DE 2 5
Weistenhöfer, Christian Bubenreuth, DE 8 33

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