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1. 发明授权

US4348928A Electronic musical instrument 失效
标题翻译：电子乐器
公开(公告)号：US4348928A
公开(公告)日：1982-09-14
申请号：US834427
申请日：1977-09-19
申请人： Noriji Sakashita , Toshio Kugisawa , Hironori Watanabe , Hiroshi Kitagawa
发明人： Noriji Sakashita , Toshio Kugisawa , Hironori Watanabe , Hiroshi Kitagawa
IPC分类号： G10H1/057 , G10H1/18 , G10H7/04 , G10H1/00
CPC分类号： G10H1/18 , G10H1/0575 , G10H7/045
摘要： 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.
摘要翻译：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。

2. 发明授权

US3982460A Musical-tone-waveform forming apparatus for an electronic musical instrument 失效
标题翻译：用于电子乐器的乐音波形形成装置
公开(公告)号：US3982460A
公开(公告)日：1976-09-28
申请号：US613931
申请日：1975-09-16
申请人： Nobuharu Obayashi , Hikaru Hashizume , Noriji Sakashita , Seiji Kameyama , Sadaaki Ezawa , Toshio Kugisawa , Yutaka Washiyama , Tatsunori Kondo , Hironori Watanabe
发明人： Nobuharu Obayashi , Hikaru Hashizume , Noriji Sakashita , Seiji Kameyama , Sadaaki Ezawa , Toshio Kugisawa , Yutaka Washiyama , Tatsunori Kondo , Hironori Watanabe
IPC分类号： G10H7/00 , G10H1/057 , G10H7/12 , G10F1/00
CPC分类号： G10H1/057 , G10H7/12 , G10H2250/591
摘要： 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.
摘要翻译：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。

3. 发明授权

US4059040A Tone-source apparatus for electronic musical instrument 失效
标题翻译：电子乐器音源设备
公开(公告)号：US4059040A
公开(公告)日：1977-11-22
申请号：US612174
申请日：1975-09-10
申请人： Nobuharu Obayashi , Hikaru Hashizume , Noriji Sakashita , Seiji Kameyama , Sadaaki Ezawa , Toshio Kugisawa , Yutaka Washiyama , Tatsunori Kondo , Hironori Watanabe
发明人： Nobuharu Obayashi , Hikaru Hashizume , Noriji Sakashita , Seiji Kameyama , Sadaaki Ezawa , Toshio Kugisawa , Yutaka Washiyama , Tatsunori Kondo , Hironori Watanabe
IPC分类号： G10H7/00 , G10H1/06 , G10F1/00
CPC分类号： G10H7/00
摘要： 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.
摘要翻译：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。

4. 发明授权

US4174649A Electronic musical instrument 失效
标题翻译：电子乐器
公开(公告)号：US4174649A
公开(公告)日：1979-11-20
申请号：US842523
申请日：1977-10-17
申请人： Nobuharu Obayashi , Hikaru Hashizume , Noriji Sakashita , Seiji Kameyama , Sadaaki Ezawa , Hironori Watanabe , Tatsunori Kondo , Toshio Kugisawa , Yutaka Washiyama
发明人： Nobuharu Obayashi , Hikaru Hashizume , Noriji Sakashita , Seiji Kameyama , Sadaaki Ezawa , Hironori Watanabe , Tatsunori Kondo , Toshio Kugisawa , Yutaka Washiyama
IPC分类号： G10H7/00 , G10H1/00 , G10H5/00
CPC分类号： G10H7/00
摘要： An electronic musical instrument which has a key assignor or assignors of one or more channels for generating and temporarily storing key code corresponding to key depression and release, respectively, a memory for storing waveshape information such as inclination and amplitude variations of a required musical waveshape divided into a plurality of periods so as to read out the waveshape information corresponding to the key code, a plurality of tone source devices, each including waveshape generators of different sound ranges respectively corresponding to keyboard switches in the same channel of each key assignor, the tone source device reading out the waveshape information from the memory on a time divided basis to generate from the waveshape generators waveshapes of different frequencies based on the read out waveshape information, and means for simultaneously actuating the corresponding waveshape generators by the key code from the key assignor and coupler information.
摘要翻译：一种电子乐器，其具有键分配器或一个或多个声道的转换器，用于分别产生和临时存储与键按下和释放相对应的键码，存储器用于存储所需音乐波形的波形信息，例如倾斜和幅度变化分别对应于每个键分配器的同一通道中的键盘开关，读出与键码相对应的波形信息的多个音源装置，每个音源装置包括不同声音范围的波形发生器，源装置基于读出的波形信息从时间划分的基础上从存储器读出波形信息，以从波形发生器波形生成不同频率的波形，以及用于通过密钥转发器的密钥代码同时致动相应波形生成器的装置和耦合器信息。

5. 发明授权

US4023454A Tone source apparatus for an electronic musical instrument 失效
标题翻译：用于电子乐器的音源设备
公开(公告)号：US4023454A
公开(公告)日：1977-05-17
申请号：US608535
申请日：1975-08-28
申请人： Nobuharu Obayashi , Hikaru Hashizume , Noriji Sakashita , Seiji Kameyama , Sadaaki Ezawa , Toshio Kugisawa , Yutaka Washiyama , Tatsunori Kondo , Hironori Watanabe
发明人： Nobuharu Obayashi , Hikaru Hashizume , Noriji Sakashita , Seiji Kameyama , Sadaaki Ezawa , Toshio Kugisawa , Yutaka Washiyama , Tatsunori Kondo , Hironori Watanabe
IPC分类号： G10H7/08 , G10H7/10 , G10H1/00
CPC分类号： G10H7/10 , G10H7/08 , G10H2250/565
摘要： A tone source apparatus is provided for an electronic musical instrument. It comprises a memory circuit which has a plurality of addresses and is so arranged that where at least one cycle of a musical tone waveform is divided into p units and a waveform in each section range is represented by a formula containing the abscissa as its variable, a coefficient and a section range quantum number of each formula is memorized in the form of digital signals in the corresponding address. Also included are a clock pulse oscillator, a counter means for counting output clock pulses of the clock pulse oscillator, and a coincidence circuit serving to generate the coincidence signal when the output digital signal of the counter means and a digital signal of the section range quantum number memorized in the memory circuit coincide with one another. A decoder designates the next stage address in order by output signals of the coincidence circuit. A calculation circuit is used for calculating a digital signal from the counter means and a coefficient digital signal from the designated address. A D-A convertor converts the output digital signal of the calculation circuit into a corresponding analog signal. The addresses in the memory circuit have memory portions which memorize as digital signals respective coefficients of n degree multiple term formulae for respective section ranges, and respective section range quantum numbers.
摘要翻译：提供一种用于电子乐器的音源设备。它包括具有多个地址的存储器电路，并且被布置成使得在将音乐波形的至少一个周期划分成p个单位并且每个区间范围中的波形由包含横坐标作为其变量的公式表示的情况下，每个公式的系数和截面范围量子数字以相应地址中的数字信号的形式存储。还包括时钟脉冲振荡器，用于计数时钟脉冲振荡器的输出时钟脉冲的计数器装置，以及用于当计数器装置的输出数字信号和截面范围量子的数字信号时产生一致信号的符合电路在存储器电路中存储的数字彼此一致。解码器通过符合电路的输出信号按顺序指定下一级地址。计算电路用于计算来自计数器装置的数字信号和来自指定地址的系数数字信号。 D-A转换器将计算电路的输出数字信号转换成相应的模拟信号。存储器电路中的地址具有存储部分，其存储作为数字信号的各个区间范围的n度多项式公式的相应系数以及相应的区间范围量子数。

6. 发明授权

US4254681A Musical waveshape processing system 失效
标题翻译：音乐波形处理系统
公开(公告)号：US4254681A
公开(公告)日：1981-03-10
申请号：US892328
申请日：1978-03-31
申请人： Toshio Kugisawa , Noriji Sakashita
发明人： Toshio Kugisawa , Noriji Sakashita
IPC分类号： G10H1/057 , G10H1/18 , G10H7/08 , G10H7/10 , G10F1/00 , G06F1/02
CPC分类号： G10H7/08 , G10H1/0575 , G10H1/187 , G10H7/10 , G10H2250/201
摘要： A musical waveshape processing system for an electronic musical instrument in which time-division time slots are set corresponding to a plurality of channels for producing notes selected on keyboards of the electronic musical instrument and the notes are each produced by repeatedly calculating the musical waveshape amplitude value of each channel in each time-division time slot. A musical waveshape calculator is provided which calculates the musical waveshape amplitude value as f(t)=at.sup.2 +bt+c based on waveshape data a, b and c and address information t. A multiplier is provided by which the value of an envelope synchronized with the time-division time slot is multiplied by the waveshape data a, b and c. A tone control circuit is provided which counts time-division multiplex signals of the ON-OFF state of a tone selection switch with a counter every frame of the time-division multiplexing and compares the count values of two successive frames to detect a change in the state of the tone selection switch from non-coincidence between the both count value, thereby controlling the musical waveshape.
摘要翻译：一种用于电子乐器的音乐波形处理系统，其中通过重复地计算音乐波形幅度值来产生其中设置对应于用于产生在电子乐器的键盘上选择的音符的多个声道的时分时隙在每个时分时隙中的每个信道。提供了一种音乐波形计算器，其基于波形数据a，b和c以及地址信息t，将音乐波形幅值计算为f（t）= at2 + bt + c。提供乘法器，通过该乘法器将与时分时隙同步的包络的值乘以波形数据a，b和c。提供了一种音调控制电路，其对每个时分多路复用的每一帧计数一个音调选择开关的ON-OFF状态的时分复用信号，并比较两个连续帧的计数值，以检测音调选择开关的状态从两个计数值之间的非重合，从而控制音乐波形。

7. 发明授权

US4138917A Key code generator 失效
标题翻译：密钥代码生成器
公开(公告)号：US4138917A
公开(公告)日：1979-02-13
申请号：US811638
申请日：1977-06-30
申请人： Noriji Sakashita , Hiroshi Kitagawa
发明人： Noriji Sakashita , Hiroshi Kitagawa
IPC分类号： G10H1/18 , G10H1/00
CPC分类号： G10H1/18 , Y10S84/02
摘要： A key code generator for electronic musical instruments which has a switch matrix circuit having a plurality of switches disposed at the intersections of two sets of buses, means for simultaneously applying signals to the switch matrix circuit from one of the two sets of buses to derive outputs from a plurality of blocks into which the buses of the other set are divided line by line, a memory for detecting the blocks that even one switch is in the on state from the bus outputs of the switch matrix circuit and temporarily storing signals of the detected blocks, a first priority selector for selecting block signals in a predetermined order of priority from the bus outputs and sequentially outputting the block signals with a predetermined clock pulse, means for inhibiting the block detecting operation during outputting from the first priority selector and applying the selected block signals to the buses of the detected blocks to sequentially scan only the detected blocks, a second priority selector for selecting switch signals in a predetermined order of priority from respective switch signals of the scanned blocks and sequentially outputting the switch signals with a predetermined clock pulse, and means for preventing clock pulses from inputting to the first priority selector until the switch signals of each designated block are all outputted.
摘要翻译：一种用于电子乐器的键码发生器，其具有开关矩阵电路，该开关矩阵电路具有设置在两组母线的交叉处的多个开关，用于从两组总线之一同时向开关矩阵电路施加信号以产生输出从另一组的总线逐行划分的多个块中分离存储器，用于检测来自开关矩阵电路的总线输出的偶数个开关处于导通状态的块，并临时存储检测到的信号的信号块，用于从总线输出以预定优先级顺序选择块信号的第一优先选择器，并且以预定时钟脉冲顺序地输出块信号;用于在从第一优先选择器输出期间禁止块检测操作并应用所选择的块将信号阻塞到检测到的块的总线上，以顺序扫描检测到的块，第二优先级 y选择器，用于以预定的优先顺序从扫描块的切换信号中选择开关信号，并以预定的时钟脉冲顺序地输出开关信号;以及用于防止时钟脉冲输入到第一优先选择器的装置，直到开关信号每个指定的块都被输出。

8. 发明授权

US3977290A Electronic musical instrument 失效
公开(公告)号：US3977290A
公开(公告)日：1976-08-31
申请号：US555620
申请日：1975-03-05
申请人： Noriji Sakashita
发明人： Noriji Sakashita
IPC分类号： G10H5/06 , G10H7/02 , G10H1/00
CPC分类号： G10H7/02 , G10H5/06 , Y10S84/10 , Y10S84/11
摘要： An electronic musical instrument in which a plurality of order pulse generators and a plurality of musical-tone-waveform forming circuits are connected in order to a tone-source-signal pulse generator. Interposed in each of a plurality of circuits diverging from the output terminal of the tone-source-signal pulse generator to the order pulse generators is a pulse-counter circuit which has a variable frequency-dividing ratio. On the output side of the pulse-counter circuit, a frequency-dividing ratio-setting signal-generating counter circuit is provided which generates a signal for setting the frequency-dividing ratio thereof.

9. 发明授权

US3962944A Electronic musical instrument 失效
标题翻译：电子乐器
公开(公告)号：US3962944A
公开(公告)日：1976-06-15
申请号：US549459
申请日：1975-02-12
申请人： Noriji Sakashita , Seiji Kameyama
发明人： Noriji Sakashita , Seiji Kameyama
IPC分类号： G10H7/00 , G10H5/06 , G10H7/02
CPC分类号： G10H5/06 , G10H7/02 , Y10S84/11
摘要： An electronic musical instrument in which a plurality of order pulse generators and musical-tone waveform forming circuits are connected in order to a tone-source-signal pulse generator. A first pulse-counter circuit and a second pulse-counter circuit are provided in each of the circuits diverging from the output terminal of the tone-source-signal pulse generator to the respective order pulse generators, so that the output signal of the tone-source-signal pulse generator is frequency-divided by the first pulse-counter circuit into 1/x and is then applied as an input signal to the order pulse generator, while the output signal of the tone-source-signal generator is frequency-divided by the second pulse-counter circuit into 1/n and is then applied as a reset pulse to both the first pulse-counter circuit and the order pulse generator. The numbers x and n are integral numbers with the relation 0
摘要翻译：一种电子乐器，其中多个顺序脉冲发生器和乐音波形形成电路被连接到音源信号脉冲发生器。在从音源信号脉冲发生器的输出端发散到各个顺序脉冲发生器的每个电路中设置有第一脉冲计数器电路和第二脉冲计数器电路，源信号脉冲发生器由第一脉冲计数器电路分频为1 / x，然后作为输入信号施加到定子脉冲发生器，而音源信号发生器的输出信号被分频通过第二脉冲计数器电路变为1 / n，然后作为复位脉冲施加到第一脉冲计数器电路和顺序脉冲发生器。数字x和n是关系为0

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