| 发明名称 |
Speaker system |
| 摘要 |
A speaker system has a bass-reflex duct provided in a cabinet. A sub-duct is provided on a central portion of the bass-reflex duct. The sub-duct is communicated with the bass-reflex duct, and filled with sound absorbing material for absorbing unnecessary resonance generated in the bass-reflex duct.
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| 申请公布号 |
US5333204(A) |
申请公布日期 |
1994.07.26 |
| 申请号 |
US19920861742 |
申请日期 |
1992.04.01 |
| 申请人 |
PIONEER ELECTRONIC CORPORATION |
发明人 |
HAMADA, HIROYUKI;NAKA, TAKAHIRO |
| 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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