发明名称 |
Loudspeaker and audio reproduction apparatus |
摘要 |
A loudspeaker has a pot-shaped permanent magnet having an aperture in its axial pole. A light source in a translucent colored plastic plug is housed in the aperture. The light source is driven in accordance with the frequency and strength of the signal fed to the speaker. A translucent colored membrane or filter is glued to the speaker cone.
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申请公布号 |
US4811313(A) |
申请公布日期 |
1989.03.07 |
申请号 |
US19870027213 |
申请日期 |
1987.03.17 |
申请人 |
SKITRONIC LIMITED OF CHEUNG KA INDUSTRIAL BLDG. |
发明人 |
TSE, SIU-KWONG |
分类号 |
A63J17/00;H04R9/06;(IPC1-7):H04R1/00;H04B1/20 |
主分类号 |
A63J17/00 |
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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