发明名称 |
HANDSET, ELECTRONIC DEVICE, AND COMMUNICATION DEVICE |
摘要 |
An earpiece, an electronic device, and a communication device, capable of reducing the influence of leakage of sounds from a clearance between the earpiece and an ear not to need an addition of parts are provided. An earpiece (100) includes an electromechanical acoustic transducer (10) having a diaphragm and for generating a sound by vibrating the diaphragm in response to an electric signal, a case (11) on which a sound hole (12) is provided and in which the electromechanical acoustic transducer (10) is housed, and a holding member (13) for holding the electromechanical acoustic transducer (10) in the case (11). The electromechanical acoustic transducer (10) has a sound pressure-frequency characteristic that is compensated in advance such that the sound pressure-frequency characteristic is planarized in a condition that the generated sound is leaked from a user's ear (14) being covered with the case (11).
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申请公布号 |
EP1865745(A1) |
申请公布日期 |
2007.12.12 |
申请号 |
EP20060730867 |
申请日期 |
2006.03.31 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
SUZUKI, SHINYA;TAKAHASHI,EMI;INOUE,YUKINARI |
分类号 |
H04R7/02;H04R7/16 |
主分类号 |
H04R7/02 |
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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