Invention Grant
- Patent Title: Miniature voice coil with integrated coupling coil
- Patent Title (中): 带集成耦合线圈的微型音圈
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Application No.: US12142365Application Date: 2008-06-19
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Publication No.: US08098878B2Publication Date: 2012-01-17
- Inventor: Morten Kjeldsen Andersen
- Applicant: Morten Kjeldsen Andersen
- Applicant Address: DK Herlev
- Assignee: Gettop Europe R&D ApS
- Current Assignee: Gettop Europe R&D ApS
- Current Assignee Address: DK Herlev
- Agency: Nixon Peabody LLP
- Main IPC: H04R25/00
- IPC: H04R25/00
Abstract:
The present invention relates to a miniature electro-acoustic transducer comprising a voice coil comprising an air gap voice coil portion at least partly positioned in an air gap of a magnet assembly, and a second voice coil portion attached to a diaphragm of the miniature transducer. The thickness of the second voice coil portion is 2-5 times larger than the thickness of the first voice coil portion. Moreover, the present invention relates to a voice coil for use in a miniature electro-acoustic transducer.
Public/Granted literature
- US20090003645A1 Miniature Voice Coil With Integrated Coupling Coil Public/Granted day:2009-01-01
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