发明名称 |
PLANAR-MAGNETIC SPEAKERS WITH SECONDARY MAGNETIC STRUCTURE |
摘要 |
A planar magnetic transducer (10) having enhanced magnetic structures which increases performance over a single-ended device but mitigates some of the drawbacks of double ended devices, including a supporting structure (30a, 30b), a diaphragm (21) incorporating a coil conductor (27) at least a primary magnetic structure (35a-g), and a secondary magnetic structure (36a-e) can be added, including mitigation of high-frequency resonance and attenuation by providing a more open architecture, including spacing the magnets wider apart, configuring the inter-magnet spaces to provide better acoustic performance, using high-energy magnets, which magnets can be shaped to form at least a part of the shaped inter-magnet space, all of which are directed to obtaining a more efficient and less costly use of magnet material to achieve enhanced performance.
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申请公布号 |
WO02059879(A9) |
申请公布日期 |
2002.12.05 |
申请号 |
WO2002US02557 |
申请日期 |
2002.01.28 |
申请人 |
AMERICAN TECHNOLOGY CORPORATION;CROFT, JAMES, J., III;GRAEBENER, DAVID |
发明人 |
CROFT, JAMES, J., III;GRAEBENER, DAVID |
分类号 |
H04R9/02;H04R7/02;H04R7/06;H04R7/16;H04R9/04;(IPC1-7):H04R25/00 |
主分类号 |
H04R9/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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