发明名称 |
Speaker diaphragm having flat response curve |
摘要 |
The nodal circle between the inner and outer concentric portions of an audio speaker diaphragm is positioned so that the ratio of the areas of the inner and outer portions is approximately equal to the ratio of their respective masses, whereby the frequency response curve remains relatively flat and is not affected by first order resonance.
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申请公布号 |
US4057694(A) |
申请公布日期 |
1977.11.08 |
申请号 |
US19760734691 |
申请日期 |
1976.10.21 |
申请人 |
PIONEER ELECTRONIC CORPORATION |
发明人 |
OBUCHI, AKIO |
分类号 |
H04R7/02;H04R7/12;H04R9/06;(IPC1-7):H04R9/06 |
主分类号 |
H04R7/02 |
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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