发明名称 |
Keyboard musical instrument performable without noise in silent mode |
摘要 |
A keyboard musical instrument is fabricated on the basis of an acoustic piano, and a hammer stopper and solenoid-operated actuators are provided for hammer assemblies and black and white keys; and a controller instructs the solenoid-operated actuators to move the black and white key at different velocities depending upon the position of the hammer stopper, and causes the acoustic piano to give little offense to the ear at a blocking position of the hammer stopper.
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申请公布号 |
US5663513(A) |
申请公布日期 |
1997.09.02 |
申请号 |
US19960631799 |
申请日期 |
1996.04.10 |
申请人 |
YAMAHA CORPORATION |
发明人 |
SUGIYAMA, NOBUO;UEHARA, HARUKI |
分类号 |
G10C3/00;G10C5/00;G10F1/02;G10H1/00;G10H1/053;G10H1/34;(IPC1-7):G10F1/02;G10H1/46 |
主分类号 |
G10C3/00 |
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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