发明名称 |
Speaker and speaker device |
摘要 |
A speaker has a very small size and is arranged to emit sound waves in a non-directional manner. The speaker includes a case and a speaker unit attached to a plate provided at an opening of the case. The speaker is arranged so that the speaker unit is mounted or attached to a floor or support surface such that a space formed by the case, the plate and the speaker unit is airtight and so that the back-and-forth motion of a vibrator of the speaker unit generates expansion and contraction of the case.
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申请公布号 |
US6807284(B2) |
申请公布日期 |
2004.10.19 |
申请号 |
US20020127474 |
申请日期 |
2002.04.23 |
申请人 |
MURATA MANUFACTURING CO., LTD. |
发明人 |
NAKAMURA TAKESHI |
分类号 |
H04R1/02;H04R1/28;(IPC1-7):H04R25/00 |
主分类号 |
H04R1/02 |
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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