发明名称 |
HORN TYPE SPEAKER |
摘要 |
PURPOSE:To make directivity closer to nondirectivity and improve the reproduction of audio frequencies of stereo apparatus by making the opening diameter of a horn shape formed inward to the centerline of a speaker smaller than the slit diameter of the throat base of the horn. |
申请公布号 |
JPS53124413(A) |
申请公布日期 |
1978.10.30 |
申请号 |
JP19770144653 |
申请日期 |
1977.12.02 |
申请人 |
NIPPON MUSICAL INSTRUMENTS MFG |
发明人 |
YAMAGUCHI MICHIHIKO;KAWAMURA KIYOSHI |
分类号 |
H04R1/30;(IPC1-7):04R1/30 |
主分类号 |
H04R1/30 |
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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