发明名称 |
Electrical apparatus with electro-acoustic transducer |
摘要 |
The electrical apparatus (10) in particular a telephone comprises a box (12) and an electro-acoustic transducer (16) disposed in said box (12). Said box (12) comprises a bearing zone (25) supporting an ear of a user, said bearing zone (25) comprising an exit aperture (26) of said electro-acoustic transducer (16). Said box (12) furthermore comprises a decompression aperture (32) made through said bearing zone (25). The electrical apparatus (10) comprises an essentially sealed resonant enclosure (18), inside which is disposed said electro-acoustic transducer (16). Said enclosure (18) comprises an interference aperture (28) made through a wall (20) of said enclosure, and a leakage aperture (30) linking said rear volume (24) to the outside. Said interference aperture (28) emerges through said bearing zone (25). Said leakage aperture (30) emerges through a zone separate from said bearing zone (25). Said decompression aperture (32) emerges outside said enclosure (18).
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申请公布号 |
US6668063(B2) |
申请公布日期 |
2003.12.23 |
申请号 |
US20020091404 |
申请日期 |
2002.03.07 |
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):H04M1/00 |
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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