发明名称 |
Electroacoustic transducer. |
摘要 |
<p>A electroacoustic transducer converts an electric signal into sound by vibrating a diaphragm (18) magnetically in response to the electric signal input thereto. A movement restricting means (sound emitting cylinder 24; projections 34, 36, 38) for restricting the movement of the diaphragm (18) within an allowable movement range is provided on the inner wall of a resonant chamber (22) disposed at one side of the diaphragm (18). The diaphragm (18) is restricted in moving by the moving restricting means (sound emitting cylinder (24); projections (34, 36, 38) )at a magnetic piece (20) attached to the center of the diaphragm (18). <IMAGE></p> |
申请公布号 |
EP0598556(A1) |
申请公布日期 |
1994.05.25 |
申请号 |
EP19930309005 |
申请日期 |
1993.11.11 |
申请人 |
STAR MICRONICS CO., LTD. |
发明人 |
IMAHORI, YOSHIO, C/O STAR MICRONICS CO.,LTD.;FUSHIMI, ISAO, C/O STAR MICRONICS CO.,LTD.;NITO, KATSUTOSHI, C/O STAR MICRONICS CO.,LTD. |
分类号 |
G04C21/02;G10K9/18;G10K9/20;H04R13/00;H04R17/10;(IPC1-7):H04R13/00 |
主分类号 |
G04C21/02 |
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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