发明名称 |
Electric-mechanical-acoustic-transducer and portable communication device including the same |
摘要 |
An electric-mechanical-acoustic-transducer includes a diaphragm; a movable section; a driving section for generating a driving force for vibrating the diaphragm and the movable section; and a suppression section for suppressing a sharpness (Q factor) of a vibration force obtained by the vibration of the movable section. <IMAGE> |
申请公布号 |
EP1282338(A3) |
申请公布日期 |
2004.04.21 |
申请号 |
EP20020016307 |
申请日期 |
2002.07.24 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
USUKI, SAWAKO;SAIKI, SHUJI |
分类号 |
H04R11/06 |
主分类号 |
H04R11/06 |
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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