公开(公告)号：US5391830A

公开(公告)日：1995-02-21

申请号：US66885

申请日：1993-05-25

申请人： Toshihiro Nishino ,  Rei Furukawa ,  Takashi Tamaki

发明人： Toshihiro Nishino ,  Rei Furukawa ,  Takashi Tamaki

IPC分类号： G10F1/02 ,  G10F5/00 ,  G10H1/00 ,  G10H1/02 ,  G10H1/053 ,  G10H1/18 ,  G10H1/38

CPC分类号： G10H1/18 ,  G10H1/02

摘要： A foot pedal control system incorporated in an electrical musical keyboard instrument is expected to decide an output signal of a foot control pedal unit to be either analog or digital signal on the basis of a series of discrete voltage levels through periodical sampling on the output signal, and a microcomputer system of the foot pedal control system executes a program sequence for periodically monitoring the discrete voltage level, deciding the digital signal to be either analog or digital signal and determining an instruction of a player represented by the output signal.

摘要翻译： 期望结合在电音乐键盘乐器中的脚踏板控制系统基于输出信号上的周期性采样，将脚踏控制踏板单元的输出信号基于一系列离散电压电平来确定为模拟或数字信号， 并且脚踏板控制系统的微计算机系统执行用于周期性地监视离散电压电平的程序序列，将数字信号判定为模拟信号或数字信号，并确定由输出信号表示的播放器的指示。

公开(公告)号：US4939969A

公开(公告)日：1990-07-10

申请号：US267722

申请日：1988-11-03

申请人： Hanzo Taguchi ,  Rokurota Mantani ,  Masatosi Murayama ,  Toshihiro Nishino

发明人： Hanzo Taguchi ,  Rokurota Mantani ,  Masatosi Murayama ,  Toshihiro Nishino

IPC分类号： G10C5/00 ,  G10H1/00 ,  G10H1/34

CPC分类号： G10C5/00 ,  G10H1/0008 ,  G10H1/0058 ,  G10H1/34

摘要： An acoustic keyboard musical instrument such as a piano includes a keyboard, a mechanical musical tone generating mechanism, a fallboard, and an operation panel for an external electronic musical tone generating unit. The keyboard includes a plurality of keys aligned on a musical instrument body. The fallboard is pivotally supported by the musical instrument body and to be closed/opened so as to cover/uncover the keyboard. The musical tone generating unit electrically generates a musical tone signal in response to a key depression on the keyboard under the control of control information which is provided by switches on the operation panel. The operation panel is located at a position opposite to a performer in the inner surface of the fallboard when the fallboard is open so that the performer can operate the operation panel during his performance at the keyboard.

摘要翻译： 诸如钢琴的声学键盘乐器包括键盘，机械乐音产生机构，摔倒板和用于外部电子乐音产生单元的操作面板。 键盘包括对准在乐器主体上的多个键。 坠盘由乐器主体枢转地支撑并且被关闭/打开以覆盖/揭开键盘。 乐音产生单元在由操作面板上的开关提供的控制信息的控制下，响应于键盘上的键按下而产生乐音信号。 操作面板位于与摔跤板内表面相反的位置，当摔跤板打开时，演奏者可以在键盘执行过程中操作操作面板。