Electric rocking mode damper

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United States of America Patent

PATENT NO 9749742
APP PUB NO 20170026746A1
SERIAL NO

15213951

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Abstract

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The invention relates to a new audio transducer for mobile devices, in particular a micro speaker for use in mobile phones, tablets, gaming devices, notebooks or similar devices, that comprises two figure-8 shaped coils to compensate tumbling passively or to detect and compensate actively rocking modes of the membrane along the two axes perpendicular to the axis of piston-wise movement of the membrane using a detection coil and a damping coil per axis. An amplifier may be used to amplify the detection signal in order to increase the damping effect. Electrical rocking mode compensation replaces state of the art damping mechanisms which are based on damping materials added in the moving part of the membrane. Due to the independence of environmental conditions electrical damping outperforms existing damping techniques.

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Patent Owner(s)

Patent OwnerAddress
SOUND SOLUTIONS INTERNATIONAL (ZHENJIANG) CO LTD4# NUMBER 33 YANGZIJIANG ROAD DAGANG STREET NEW DISTRICT ZHENJIANG CITY JIANGSU PROVINCE 212000

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bauer, Heribert Siegendorf, AT 4 33
Reining, Friedrich Vienna, AT 41 669

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