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    • 3. 发明授权
    • Electronic musical instrument
    • 电子乐器
    • US4238984A
    • 1980-12-16
    • US862430
    • 1977-12-20
    • Hironori Watanabe
    • Hironori Watanabe
    • G10H1/18G10H7/10G10H1/00G10H1/02
    • G10H7/10G10H1/18
    • An electronic musical instrument which produces musical notes synthesized based on logic orthogonal functions stored in digital form. A coefficient corresponding to a tone selected by a tone selector is read out of a memory to calculate a logic orthogonal function, for example, a composite coefficient of a Walsh Hadamard matrix. The composite coefficient is applied to a plurality of waveshape calculators to calculate the amplitude value of a waveshape of the required tone and the waveshape calculators are actuated at the timing predetermined times the period of the musical note selected by the depressed key. Any desired musical waveshape can be produced by setting the coefficient corresponding thereto and the spectral structure of the waveshape can be changed with the lapse of time. Polyphonic tone synthesis is achieved by intermittent operation of the waveshape calculators to produce a wide variety of musical sounds. Further, a depressed key data detector is provided for detecting non-encoded key data. Columns of a key switch matrix are selected by a ring counter and a predetermined time slot is provided by a priority selector in accordance with priority of rows having key switch closure signals and a pulse having the phase angle of the row is produced in the time slot. This pulse is extracted together with a frame pulse and a clock to detect key data. The key data are assigned to a plurality of assignment units one after another and, thereafter, waveshape calculation is carried out in each of a plurality of systems.
    • 一种产生基于以数字形式存储的逻辑正交函数合成的音符的电子乐器。 从存储器中读出与音调选择器选择的音调对应的系数,以计算逻辑正交函数,例如沃尔什哈达玛矩阵的复合系数。 将复合系数应用于多个波形计算器以计算所需音调的波形的幅度值,并且在由按下的键选择的音符的周期的预定时间的定时致动波形计算器。 可以通过设定与其对应的系数来产生任何期望的音乐波形,并且可以随着时间的流逝改变波形的频谱结构。 通过间歇地操作波形计算器以产生各种各样的音乐声音来实现多音色调合成。 此外,提供了用于检测未编码的密钥数据的按下的密钥数据检测器。 钥匙开关矩阵的列由环形计数器选择,并且由优先权选择器根据具有钥匙开关闭合信号的行的优先级提供预定的时隙,并且在时隙中产生具有行的相位角的脉冲 。 该脉冲与帧脉冲和时钟一起提取以检测关键数据。 密钥数据一个接一个地分配给多个分配单元,此后,在多个系统中的每个系统中执行波形计算。
    • 4. 发明授权
    • Tone-source apparatus for electronic musical instrument
    • 电子乐器音源设备
    • US4059040A
    • 1977-11-22
    • US612174
    • 1975-09-10
    • Nobuharu ObayashiHikaru HashizumeNoriji SakashitaSeiji KameyamaSadaaki EzawaToshio KugisawaYutaka WashiyamaTatsunori KondoHironori Watanabe
    • Nobuharu ObayashiHikaru HashizumeNoriji SakashitaSeiji KameyamaSadaaki EzawaToshio KugisawaYutaka WashiyamaTatsunori KondoHironori Watanabe
    • G10H7/00G10H1/06G10F1/00
    • G10H7/00
    • A tone source apparatus for an electronic musical instrument is characterized in that at least one cycle of a musical-tone waveform, which it is desired be produced, is depicted as a sequence of section lines and a series of pulses having regular intervals is varied, by a pulse-density varying circuit, in pulse density in accordance with the degrees of inclination of the respective section lines. The resultant series of pulses having varied pulse density is formed, by a waveform forming circuit, into the desired musical tone waveform. The pulse-density varying circuit comprises a first counter to which is applied as an input, the aforementioned series of pulses having regular intervals. A second counter is connected, in series or in parallel, to the first counter and a decoder is connected to an output terminal of the second counter. A memory circuit is connected to the output terminals of the decoder. The memory circuit comprises a plurality of pulse-density setting portions which set frequency-dividing ratios for the first counter for selecting output pulse-densities. The memory circuit also comprises a plurality of section range setting portions which set frequency-dividing ratios for the second counter for selecting output time intervals of signals obtained at respective output terminals of the decoder.
    • 一种用于电子乐器的音源设备的特征在于,将要产生乐曲的波形的至少一个周期描绘为一段切片线,并且改变具有规则间隔的一系列脉冲, 通过脉冲密度变化电路,根据相应截面线的倾斜度的脉冲密度。 通过波形形成电路形成具有变化的脉冲密度的所得一系列脉冲到所需的乐音波形中。 脉冲密度变化电路包括作为输入施加的第一计数器,上述一系列脉冲具有规则的间隔。 第二计数器串联或并联连接到第一计数器,解码器连接到第二计数器的输出端。 存储电路连接到解码器的输出端。 存储电路包括多个脉冲浓度设置部分,其设置用于选择输出脉冲密度的第一计数器的分频比。 存储电路还包括多个区间设置部分,其设置第二计数器的分频比,用于选择在解码器的各个输出端获得的信号的输出时间间隔。
    • 6. 发明授权
    • Musical-tone-waveform forming apparatus for an electronic musical
instrument
    • 用于电子乐器的乐音波形形成装置
    • US3982460A
    • 1976-09-28
    • US613931
    • 1975-09-16
    • Nobuharu ObayashiHikaru HashizumeNoriji SakashitaSeiji KameyamaSadaaki EzawaToshio KugisawaYutaka WashiyamaTatsunori KondoHironori Watanabe
    • Nobuharu ObayashiHikaru HashizumeNoriji SakashitaSeiji KameyamaSadaaki EzawaToshio KugisawaYutaka WashiyamaTatsunori KondoHironori Watanabe
    • G10H7/00G10H1/057G10H7/12G10F1/00
    • G10H1/057G10H7/12G10H2250/591
    • An apparatus for forming a musical-tone waveform for an electronic musical instrument characterized in that at least one cycle of a musical-tone waveform, which it is desired be produced, is divided in amplitude by dividing lines at equal intervals and sampling points on a time axis are determined from respective crossing points between the waveform and the dividing lines and the distance between the initial and the final sampling points is represented by an appropriate number of pulses so that each sampling point may be represented by a pulse number. There is further provided a memory circuit wherein each sampling point, that is, the pulse number thereof is set up in the form of a digital signal. Additionally, there is a set up in the form of a digital signal a tendency such as increase, decrease or equal at each sampling point with reference to the preceding sampling point. An envelope setting device is used wherein the envelope of a muscial-tone waveform, which it is desired be produced, is subjected to sampling and the analog amount of each sampling point is set up in the form of digital signal. An accumulatively adding device is employed whereby the output digital signal of the envelope setting device is accumulatively added to or subtracted from the output digital signal of the memory circuit. The accumulatively adding device is connected at its output terminal to a D-A converter for converting its output signal into an analog signal.
    • 一种用于形成用于电子乐器的乐音波形的装置,其特征在于,要产生希望产生的乐音波形的至少一个周期通过以等间隔的分割线和 时间轴由波形和分割线之间的各个交叉点确定,并且初始和最终采样点之间的距离由适当数量的脉冲表示,使得每个采样点可以由脉冲数表示。 还提供了一种存储电路,其中每个采样点,即其脉冲数量以数字信号的形式被设置。 此外,以数字信号的形式设置参考前述采样点的每个采样点的增加,减小或相等的趋势。 使用信封设定装置,其中要产生希望产生的乐音波形的包络进行采样,并且以数字信号的形式设置每个采样点的模拟量。 使用累加装置,由此将包络线设定装置的输出数字信号累积地加到或从存储电路的输出数字信号中减去。 累加装置在其输出端连接到D-A转换器,用于将其输出信号转换为模拟信号。
    • 8. 发明授权
    • Electronic musical instrument
    • 电子乐器
    • US4348928A
    • 1982-09-14
    • US834427
    • 1977-09-19
    • Noriji SakashitaToshio KugisawaHironori WatanabeHiroshi Kitagawa
    • Noriji SakashitaToshio KugisawaHironori WatanabeHiroshi Kitagawa
    • G10H1/057G10H1/18G10H7/04G10H1/00
    • G10H1/18G10H1/0575G10H7/045
    • An electronic musical instrument of digital processing in which required musical waveshape data are calculated by a tone control device to obtain a complex musical waveshape and the complex musical waveshape is read out at a read frequency produced by a key closure to generate the selected musical note. The electronic musical instrument has a calculator for calculating a musical waveshape in association with the operation of the tone control device in a period of time independent of the period of the generated musical note, a read-out signal generator for producing a memory read-out signal based on the closure of the key switch, a period detector for detecting by one period of each channel resulting from the closure of the key switch, first and second memories for storing the musical waveshape from the calculator, the stored musical waveshape being read out by the read-out signal, and means for achieving such a control that while the first memory is read out, the musical waveshape is stored in the second memory, that the read output signal from the first memory is sequentially written in the second memory by the output signal from the period detector in synchronism with the period of the generated musical note and that after completion of reading out of a new first memory, the musical waveshape from the calculator is stored in the first memory.
    • 数字处理的电子乐器,其中由音调控制装置计算所需的音乐数据,以获得复杂的音乐波形,并以由钥匙闭合产生的读取频率读出复合的音乐波形,以产生选定的音符。 该电子乐器具有计算器,用于在独立于所生成的音符的周期的时间段内计算与音调控制装置的操作相关联的音乐波形;读出信号发生器,用于产生存储器读出 基于钥匙开关的关闭的信号,用于由钥匙开关闭合导致的每个通道的一个周期检测的周期检测器,用于存储来自计算器的音乐波形的第一和第二存储器,存储的音乐波形被读出 通过读出信号,以及用于实现这样的控制的装置,即当读出第一存储器时,将音乐波形存储在第二存储器中,来自第一存储器的读出的输出信号被顺序地写入第二存储器中 来自周期检测器的输出信号与所生成的音符的周期同步,以及完成读出新的第一存储器之后的音频 来自计算器的波形存储在第一个存储器中。
    • 10. 发明授权
    • Organ performance supporting device
    • 器官性能配套装置
    • US4157049A
    • 1979-06-05
    • US846515
    • 1977-10-28
    • Hironori Watanabe
    • Hironori Watanabe
    • G10H1/24G10H1/02
    • G10H1/24
    • An organ performance supporting device which has means for detecting ON signals of actuating switches of combination units to provide control code signals, means for setting signals indicating the individual operative states of the switches by the switch-ON detecting signals, a read-only memory for storing coded control signals necessary for the presetting and selection of registrations, the coded control signals being selectively read out in reply to the detected control code signals, a combination registration memory composed of a writable memory and a read-only memory, the combination registration memory storing registrations required by the combination unit and selectively read out in reply to the detected control code signals, a register supplied with a signal from a stop switch and reading out the writable and read-only memories in a predetermined operative state to store the state of the combination unit and the ON-OFF state of the stop switch, a register for storing the registration output from each combination unit for synchronization with an external system, and means for indicating the state of each combination unit and the ON-OFF state of the stop switch.
    • 一种器官性能支持装置,具有用于检测组合单元的致动开关的ON信号以提供控制代码信号的装置,用于通过开关检测信号设置指示开关的各个操作状态的信号的装置,用于 存储预设和选择注册所需的编码控制信号,响应于检测到的控制代码信号选择性地读出编码的控制信号,由可写存储器和只读存储器组成的组合注册存储器,组合注册存储器 存储组合单元所需的注册并且响应于检测到的控制代码信号选择性地读出;寄存器,其被提供有来自停止开关的信号,并以预定的操作状态读出可写入和只读存储器,以存储 组合单元和停止开关的ON-OFF状态,用于存储注册器的寄存器 从每个组合单元输出的用于与外部系统同步的装置,以及用于指示每个组合单元的状态和停止开关的ON-OFF状态的装置。