公开(公告)号：US5741993A

公开(公告)日：1998-04-21

申请号：US682267

申请日：1996-07-17

申请人： Kiyomichi Kushimiya

发明人： Kiyomichi Kushimiya

IPC分类号： G10H1/18 ,  G10H1/00 ,  G10H1/02 ,  G10H1/053 ,  G10H7/00

CPC分类号： G10H1/0066 ,  G10H1/02 ,  G10H2210/225

摘要： Provided is an electronic keyboard, which has a sequentially variable operating terminal, that comprises: a detector for detecting an operational displacement of the sequentially variable operating terminal, a linear converter for converting into a linear value the operational displacement of the sequentially variable operating terminal that is detected by the detector, a linear conversion table that is to be referred to when the linear converter converts the operational displacement into the linear value, a bender MIDI converter for converting into a bender MIDI value the linear value that is obtained by the linear converter, and a bender MIDI conversion table that is to be referred to when the bender MIDI converter converts the linear value into the bender MIDI value; and wherein the bender MIDI converter refers to the bender MIDI conversion table to convert the operational displacement of the sequentially variable operating terminal into a discrete bender MIDI value.

摘要翻译： 本发明提供了一种电子键盘，其具有顺序可变的操作终端，该电子键盘包括：用于检测顺序可变操作终端的操作位移的检测器，用于将顺序可变操作终端的操作位移转换成线性值的线性转换器， 由线性转换器将线性转换器转换为线性值时将被引用的线性转换表，用于转换成弯曲器的弯曲器MIDI转换器，由线性转换器获得的线性值 ，以及弯曲MIDI转换表，当弯曲MIDI转换器将线性值转换为弯曲器MIDI值时将被引用; 并且其中弯曲器MIDI转换器指的是弯曲器MIDI转换表，以将顺序可变操作终端的操作位移转换为离散弯曲器MIDI值。

公开(公告)号：US5541357A

公开(公告)日：1996-07-30

申请号：US252769

申请日：1994-06-02

申请人： Hiroshi Sato ,  Gen Izumisawa ,  Jiro Tanaka ,  Kiyomichi Kushimiya

发明人： Hiroshi Sato ,  Gen Izumisawa ,  Jiro Tanaka ,  Kiyomichi Kushimiya

IPC分类号： G10H1/053 ,  G10H1/057 ,  G10H7/00 ,  G10H7/02 ,  G01P3/00 ,  G10H1/02

CPC分类号： G10H1/0575 ,  G10H7/02

摘要： In the sound source system, the waveform sampled from the sounds of keys pressed down with two or more kinds of intensity are synthesized in a specified rate, thereby forming the waveform of the sounds of keys pressed down with the other kind of intensity. Thus, almost the actual instrumental deep sounds can be reproduced. The sound waveform sampled from weak key presses is passed through a low pass filter, and the filtered waveform composed only of low order harmonic components is transformed to weak press data in the pulse code modulation system for the storage. Similarly, the sound waveform sampled from strong key presses are passed through a high pass filter, thereby removing the low order harmonic components. The filtered waveform composed only of the high order harmonic components are transformed to strong press data in the pulse code modulation system for the storage. The high pass filter can remove the frequency components which pass through the low pass filter. By mixing the weak and strong press data in the rate determined by the key press intensity, the sound waveform signal of optional key press intensity is formed.

摘要翻译： 在声源系统中，以规定的速度合成以两种以上的强度按下的按键的声音取样的波形，从而形成用另一种强度按下的键的声音的波形。 因此，几乎可以复制实际的工具深层的声音。 从弱键按下的声音波形通过低通滤波器，仅由低次谐波分量构成的滤波波形转换为用于存储的脉冲编码调制系统中的弱压数据。 类似地，从强键按压采样的声音波形通过高通滤波器，从而去除低次谐波分量。 仅由高次谐波分量构成的滤波波形被转换成用于存储的脉冲编码调制系统中的强压数据。 高通滤波器可以去除通过低通滤波器的频率分量。 通过按照按键强度确定的速率混合弱和强的按压数据，形成可选按键强度的声音波形信号。