Double coil speaker

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9838794
APP PUB NO 20140321690A1
SERIAL NO

13871726

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An audio system comprising an electro-acoustic transducer having two stacked voice coils mechanically linked to a membrane. The voice coils are oscillatingly suspended in the magnetic field of a permanent magnet focused by a pole plate and are mechanically arranged symmetrical to the pole plate while in a rest position. The audio system further comprises two driver circuits connected to the electro-acoustic transducer.

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Patent Owner(s)

Patent OwnerAddress
AAC TECHNOLOGIES PTE LTD10 ANG MO KIO STREET 65 NO 01-08 TECHPOINT SINGAPORE 569059
ACC TECHNOLOGIES (NANJING) CO LTD8TH FLOOR R&D BUILDING EMERGING INDUSTRY INCUBATION BASE NANDA SCIENCE PARK YUANHUA ROAD XIANLIN UNIVERSITY TOWN QIXIA DISTRICT NANJING

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Reining, Friedrich Vienna, AT 41 669

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