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).
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
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