发明名称 |
Loudspeaker for a portable communication device |
摘要 |
A loudspeaker has first and second diaphragms provided in a case. A first voice coil (32) is provided for vibrating the first diaphragm (27), and a second voice coil (33) is provided for vibrating the second diaphragm (30). A first permanent magnet (23) is provided for applying a magnetic flux to the first voice coil, and a second permanent magnet (25) is provided for applying a magnetic flux to the second voice coil. |
申请公布号 |
EP1257148(A3) |
申请公布日期 |
2007.02.14 |
申请号 |
EP20020253148 |
申请日期 |
2002.05.03 |
申请人 |
CITIZEN ELECTRONICS CO., LTD. |
发明人 |
MIYAMOTO, KAZUMI;FURUYA, MASAHITO |
分类号 |
H04R9/06;H04R9/10;H04R1/26;H04R9/02 |
主分类号 |
H04R9/06 |
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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