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1.发明授权
公开(公告)号：US3886834A
公开(公告)日：1975-06-03
申请号：US46789274
申请日：1974-05-08
发明人： OKAMOTO EISAKU
CPC分类号： G10H5/002
摘要： An electronic musical instrument is capable of modulation controlling at least one of the pitch frequency, tone color and volume envelope of a second keyboard section tone signal by a tone signal obtained by operating any key on the first keyboard section. To control the frequency, tone color and volume envelope of the second keyboard section tone signal, a voltage controlled oscillator, voltage controlled filter and voltage controlled amplifier can be used. The first keyboard section tone signal may be frequency divided and/or waveform converted so as to control the second keyboard section tone signal.
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公开(公告)号：US3897709A
公开(公告)日：1975-08-05
申请号：US45764674
申请日：1974-04-03
发明人： HIYOSHI TERUO , OKAMOTO EISAKU
摘要： An electronic musical instrument comprising: a tone generator including a voltage-controlled oscillator; a voltage-controlled filter for coloring tone signal; a voltage-controlled amplifier for imparting a desired envelope to the tone signal; voltage waveform generators for generating controlling voltage waveforms for the oscillator, filter and amplifier; and a waveform controller for controlling said controlling voltage waveforms by the use of voltage parameters representing the initial level, attack level, attack time, first decay time, sustain level, and second decay time, thereby controlling the generated musical sounds in a time-dependent manner easily and variously. The waveform controller can include a plurality of fixed and variable memories which can be easily pre-set and/or selected, or totally replaced.
摘要翻译： 一种电子乐器，包括：音调发生器，包括压控振荡器; 一个用于着色色调信号的压控滤波器; 用于向所述音调信号施加期望的包络的压控放大器; 电压波形发生器，用于产生振荡器，滤波器和放大器的控制电压波形; 以及波形控制器，用于通过使用表示初始水平，攻击级别，攻击时间，第一衰减时间，维持电平和第二衰减时间的电压参数来控制所述控制电压波形，从而以时间依赖的方式控制所产生的音乐声音 方式容易和不同。 波形控制器可以包括可容易地预先设置和/或选择或完全替换的多个固定和可变存储器。
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公开(公告)号：US3646242A
公开(公告)日：1972-02-29
申请号：US3646242D
申请日：1971-03-15
发明人： OKAMOTO EISAKU
CPC分类号： G10H1/40
摘要： An automatic rhythm instrument is provided with a rhythm termination circuit which keeps the rhythm pattern pulse generator operating even after the stop switch is manipulated and stops keeping it operating upon detecting the end of the rhythm cycle, thus stopping the automatic rhythm performance upon completion of the full rhythm cycle. On this instrument, the player does not have to manipulate the stop switch at the exact end of the rhythm cycle, but has only to manipulate it at any time within the last rhythm cycle and the instrument keeps on the performance until it comes to the final end of the rhythm cycle and stops.
摘要翻译： 一种自动节律仪器具有节奏终止电路，该节奏终止电路即使在停止开关被操纵之后也保持节奏图形脉冲发生器的运行，并且在检测到节奏循环结束后停止运行，从而在完成 全节奏循环。 在本乐器上，播放器不必在节奏循环的确切结尾操纵停止开关，而只能在最后一个节奏周期内随时操作停止开关，仪器将保持最后的运行状态 节奏循环结束并停止。
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