发明名称 |
Racetrack-shaped magnetic loop and coil for use in the miniature electro-dynamic transducer |
摘要 |
A miniature electro-dynamic transducer with a racetrack-shaped magnetic loop and coil. The transducer is characterized in that it comprises a membrane, a magnetic loop, a coil. In particular, the geometric shapes of the magnetic loop and the coil are similarly corresponding to the shape of the said membrane.
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申请公布号 |
US2004146173(A1) |
申请公布日期 |
2004.07.29 |
申请号 |
US20040753572 |
申请日期 |
2004.01.08 |
申请人 |
PAN ZHENGMIN;HUANG XINGZHI;SHENG PANDA;CAO SHUIXUAN |
发明人 |
PAN ZHENGMIN;HUANG XINGZHI;SHENG PANDA;CAO SHUIXUAN |
分类号 |
H04R9/02;H04R9/06;(IPC1-7):H04R1/00;H04R11/02 |
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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