发明名称 |
Electrical apparatus with electro-acoustic transducer |
摘要 |
<p>The electrical apparatus (10) in particular a telephone comprises a box (12) and an electro-acoustic transducer (16) disposed in the said box (12). The said box (12) comprises a bearing zone (25) supporting an ear of a user, the said bearing zone (25) comprising an exit aperture (26) of the said electro-acoustic transducer (16). The said box (12) furthermore comprises a decompression aperture (32) made through the said bearing zone (25). The electrical apparatus (10) comprises an essentially sealed resonant enclosure (18), inside which is disposed the said electro-acoustic transducer (16). The said enclosure (18) comprises an interference aperture (28) made through a wall (20) of the said enclosure, and a leakage aperture (30) linking the said rear volume (24) to the outside. The said interference aperture (28) emerges through the said bearing zone (25). The said leakage aperture (30) emerges through a zone separate from the said bearing zone (25). The said decompression aperture (32) emerges outside the said enclosure (18).</p> |
申请公布号 |
EP1244331(A1) |
申请公布日期 |
2002.09.25 |
申请号 |
EP20020290554 |
申请日期 |
2002.03.06 |
申请人 |
MITSUBISHI ELECTRIC TELECOM EUROPE |
发明人 |
CIMAZ, LIONEL;STEENACKERS, LAURENT;GAUTIER, CHRISTIAN BERNARD;ORGANO, PHILIPPE |
分类号 |
H04R1/02;H04M1/03;H04R1/22;H04R1/28;(IPC1-7):H04R1/22 |
主分类号 |
H04R1/02 |
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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