发明名称 |
Electro-acoustical transducer and transducer assembly |
摘要 |
<p>An electro-acoustical transducer comprising DC atmospheric pressure equalization vents (50) for equalizing pressure in both chambers therein. The sound port of the transducer may be sealed by a sound conducting member preventing gas flow there through. The transducer may have a single vent extending in a plane of a side portion, which vent may have a meandering path (46) or may comprise tapering portions or cavities defining acoustical properties thereof.
</p> |
申请公布号 |
EP1653767(A3) |
申请公布日期 |
2008.11.19 |
申请号 |
EP20050023742 |
申请日期 |
2005.10.31 |
申请人 |
SONION NEDERLAND B.V. |
发明人 |
VAN HALTEREN, AART ZEGER;BEEKMAN, NIELS |
分类号 |
H04R1/22 |
主分类号 |
H04R1/22 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|