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1. 发明授权

US4273017A Piano action keyboard with roller and elastic diaphragm transducer 失效
标题翻译：钢琴动作键盘，带滚筒和弹性隔膜换能器
公开(公告)号：US4273017A
公开(公告)日：1981-06-16
申请号：US15729
申请日：1979-02-27
申请人： Philip V. W. Dodds , Mark L. Smith
发明人： Philip V. W. Dodds , Mark L. Smith
IPC分类号： G10H1/34 , G10H1/02
CPC分类号： G10H1/346 , Y10S84/07
摘要： A piano action keyboard for an electronic musical instrument or the like wipes a switch actuator (or other mechanical component of electric signal translation means) across switch contacts on a printed circuit board to generate signals indicative of the position and motionof a key when played. The keyboard provides a highly realistic piano "feel" through an array of paired depressable playing keys and arms. Each such arm supports a switch actuator or the like, with varying force transmission at different stages of depression of its corresponding key, the overall electrical-mechanical combination affording a response in terms of both actual results and kinesthetic feedback simulating a manual piano action.
摘要翻译：用于电子乐器等的钢琴动作键盘在印刷电路板上的开关触点之间擦拭开关致动器（或电信号转换装置的其他机械部件），以产生指示键在播放时的位置和运动的信号。键盘通过一对配对的可按键播放键和手臂提供高度现实的钢琴“感觉”。每个这样的臂支撑开关致动器等，其在相应键的不同阶段具有不同的力传递，整个机电组合根据实际结果和模拟手动钢琴作用的动觉反馈提供响应。

2. 发明授权

US4217803A Piano-action keyboard 失效
标题翻译：钢琴动作键盘
公开(公告)号：US4217803A
公开(公告)日：1980-08-19
申请号：US588
申请日：1979-01-02
申请人： Philip V. W. Dodds
发明人： Philip V. W. Dodds
IPC分类号： G10H1/34 , G10H1/02
CPC分类号： G10H1/346 , Y10S84/07
摘要： A piano-action keyboard for an electronic musical instrument or the like wipes a switch actuator (or other mechanical component of electric signal translation means) across switch contacts on a printed circuit board to generate signals indicative of the position and motion of a key when played. The keyboard provides a highly realistic piano "feel" through an array of paired depressable playing keys and arms. Each such arm supports a switch actuator or the like, with varying force transmission at different stages of depression of its corresponding key, the overall electrical-mechanical combination affording a response in terms of both actual results and kinesthetic feedback simulating a manual piano action.
摘要翻译：用于电子乐器等的钢琴操作键盘在印刷电路板上的开关触点之间擦拭开关致动器（或电信号转换装置的其他机械部件），以产生指示当播放时键的位置和运动的信号。键盘通过一对配对的可按键播放键和手臂提供高度现实的钢琴“感觉”。每个这样的臂支撑开关致动器等，其在相应键的不同阶段具有不同的力传递，整个机电组合根据实际结果和模拟手动钢琴作用的动觉反馈提供响应。

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