| 发明名称 |
Transducer with resonant cavity |
| 摘要 |
<p>A transducer such as a microphone or a micro-electrical-mechanical-system (MEMS) microphone comprises a back chamber which is dimensioned as a resonance cavity so as to effectively emit or receive ultrasound.</p> |
| 申请公布号 |
EP2271129(A1) |
申请公布日期 |
2011.01.05 |
| 申请号 |
EP20090164440 |
申请日期 |
2009.07.02 |
| 申请人 |
NL;NL |
发明人 |
NL;NL;NL |
| 分类号 |
H04R1/28;G01S15/04;H04R19/00 |
主分类号 |
H04R1/28 |
| 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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