| 发明名称 |
OPTICAL DETECTION SYSTEM OF DEPRESSED KEYS |
| 摘要 |
PURPOSE:To optically detect depressed kays and their strength for greater reliability and enable two different kind of detection using a single detection system. |
| 申请公布号 |
JPS5211026(A) |
申请公布日期 |
1977.01.27 |
| 申请号 |
JP19750087669 |
申请日期 |
1975.07.16 |
| 申请人 |
NIPPON MUSICAL INSTRUMENTS MFG |
发明人 |
NIIMI KOUJI;KOUNO SHIYUUHEI |
| 分类号 |
G10H1/057;G10H1/02 |
主分类号 |
G10H1/057 |
| 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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