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公开(公告)号：US4235142A
公开(公告)日：1980-11-25
申请号：US904
申请日：1979-01-04
申请人： Akira Nakada , Eiichiro Aoki , Akiyoshi Oya , Takatoshi Okumura , Yasuji Uchiyama , Eiichi Yamaga
发明人： Akira Nakada , Eiichiro Aoki , Akiyoshi Oya , Takatoshi Okumura , Yasuji Uchiyama , Eiichi Yamaga
CPC分类号： G10H1/28 , G10H1/182 , G10H1/36 , G10H2210/221
摘要： An electronic musical instrument is of a time-shared digital processing type and capable of producing musical tones for a special performance. There are provided, at suitable time intervals, time periods in which no key code of a depressed key is produced by a key coder. During these time periods, a signal designating a special performance is generated. In a channel assignment circuit which assigns key codes of depressed keys to plural tone production channels there is provided a channel for an exclusive use for the special performance. A circuit for assigning data for the special performance transmits the data to the channel assignment circuit in response to the special performance designation signal from the key coder so that the data selected from among the key data already assigned to the tone production channels for ordinary performance are sequentially assigned to the channel allotted exclusively for the special performance. As an example of the special performance, description is made with respect to an automatic arpeggio performance in which tones are produced at designated orders of location from the lowest tone among the tones of the depressed keys.
摘要翻译： 电子乐器具有时间共享的数字处理类型，能够产生用于特殊表演的乐音。 以合适的时间间隔提供了一个键控编码器不产生按下的键的键码的时间段。 在这些时间段内，产生指定特殊性能的信号。 在向多个音调产生频道分配按下的键的键码的频道分配电路中，提供专用于特殊演奏的频道。 用于分配用于特殊性能的数据的电路响应于来自密钥编码器的特殊性能指定信号将数据发送到信道分配电路，使得从已经分配给用于普通性能的音调产生信道的密钥数据中选择的数据是 顺序分配给专门用于特殊演出的频道。 作为特殊性能的一个例子，对于自动琶音性能进行描述，其中在按下的按键的音调之间的最低音调的指定指定的位置产生音调。
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公开(公告)号：USRE31090E
公开(公告)日：1982-11-30
申请号：US221578
申请日：1980-12-31
申请人： Eiichi Yamaga , Akira Nakada , Takatoshi Okumura , Eiichiro Aoki , Akiyoshi Oya , Yasuji Uchiyama
发明人： Eiichi Yamaga , Akira Nakada , Takatoshi Okumura , Eiichiro Aoki , Akiyoshi Oya , Yasuji Uchiyama
IPC分类号： G10H1/18
CPC分类号： G10H1/187
摘要： A tone production assignment circuit produces control information representing assigned key code, key-on etc. Such information has a large number of bits with respect to each channel. A multiplexing circuit has output lines the number of which is smaller than the bit number of the information and divides the information with a plurality of time slots with respect to one channel. The multiplexing circuit is controlled by a signal from a timing signal generation circuit. The multiplexing circuit is capable of rearranging information for transmitting information required for the respective individual channels and also capable of inserting a timing data in an available time slot. A multiple data analysis circuit decodes the information provided by the multiplexing circuit. Tone generators are provided for the respective channels and each one of them functions to latch only corresponding information among the decoded information by a latch circuit.
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公开(公告)号：US4192211A
公开(公告)日：1980-03-11
申请号：US929007
申请日：1978-07-28
申请人： Eiichi Yamaga , Akira Nakada , Takatoshi Okumura , Eiichiro Aoki , Akiyoshi Oya , Yasuji Uchiyama
发明人： Eiichi Yamaga , Akira Nakada , Takatoshi Okumura , Eiichiro Aoki , Akiyoshi Oya , Yasuji Uchiyama
CPC分类号： G10H1/187
摘要： A tone production assignment circuit produces control information representing assigned key code, key-on etc. Such information has a large number of bits with respect to each channel. A multiplexing circuit has output lines the number of which is smaller than the bit number of the information and divides the information with a plurality of time slots with respect to one channel. The multiplexing circuit is controlled by a signal from a timing signal generation circuit. The multiplexing circuit is capable of rearranging information for transmitting information required for the respective individual channels and also capable of inserting a timing data in an available time slot. A multiple data analysis circuit decodes the information provided by the multiplexing circuit. Tone generators are provided for the respective channels and each one of them functions to latch only corresponding information among the decoded information by a latch circuit.
摘要翻译： 音调产生分配电路产生表示分配的键码，键控等的控制信息。这样的信息相对于每个频道具有大量的位。 复用电路具有数量小于信息的位数的输出线，并且相对于一个通道将信息与多个时隙分开。 复用电路由来自定时信号发生电路的信号控制。 复用电路能够重新排列用于发送各个信道所需的信息的信息，并且还能够在可用时隙中插入定时数据。 多重数据分析电路解码复用电路提供的信息。 为每个通道提供音频发生器，并且每个声道发生器用于仅通过锁存电路锁存解码信息中的对应信息。
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公开(公告)号：US4217804A
公开(公告)日：1980-08-19
申请号：US952098
申请日：1978-10-17
申请人： Eiichi Yamaga , Akira Nakada , Takatoshi Okumura , Eiichiro Aoki , Akiyoshi Oya , Yasuji Uchiyama
发明人： Eiichi Yamaga , Akira Nakada , Takatoshi Okumura , Eiichiro Aoki , Akiyoshi Oya , Yasuji Uchiyama
摘要： An electronic musical instrument having a channel processor. The channel processor includes a tone production assignment circuit and an automatic arpeggio circuit. The tone production assignment circuit includes a key code memory circuit of a plurality of channels and an assignment control unit. A specific channel among the channels is used exclusively for the automatic arpeggio performance while the other channels are used for ordinary respective tone production corresponding to depressed keys by an ordinary key assignment operation responsive to depression of the keys. The automatic arpeggio circuit produces key codes one after another for the automatic arpeggio channel in accordance with the key codes already assigned to the respective ordinary channels and with arpeggio constituent orders in a sounding pattern. The arpeggio sounding pattern which is selected in response to a rhythm to be played contains binary data representing the arpeggio constituent orders. The arpeggio constituent orders herein mean the orders of the locations of the notes constituting the arpeggio alignment, the order being counted from the lowest one of the depressed keys in a predetermined keyboard range.
摘要翻译： 一种具有通道处理器的电子乐器。 频道处理器包括音调制作分配电路和自动琶音电路。 音调制作分配电路包括多个通道的键码存储电路和分配控制单元。 信道之中的特定频道专用于自动琶音性能，而其他频道用于通过响应于按键的普通键分配操作而对应于按下的按键的普通相应乐音。 自动琶音电路根据已经分配给各个普通通道的键代码和探测模式中的琶音分量命令一个接一个地产生用于自动琶音通道的键码。 响应于要播放的节奏选择的琶音探测模式包含表示琶音分量的二进制数据。 这里的琶音构成命令是指构成琶音对准的音符的位置的顺序，该顺序从预定的键盘范围中的最低的一个按下的键计数。
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公开(公告)号：US4333374A
公开(公告)日：1982-06-08
申请号：US133601
申请日：1980-03-24
申请人： Takatoshi Okumura , Akira Nakada , Yasuji Uchiyama , Eiichiro Aoki , Eiichi Yamaga , Akiyoshi Oya
发明人： Takatoshi Okumura , Akira Nakada , Yasuji Uchiyama , Eiichiro Aoki , Eiichi Yamaga , Akiyoshi Oya
摘要： A digital oscillator generates a basic pulse having a period which is a predetermined large number of times of a clock pulse period. During the basic pulse period are allotted a predetermined small number of time slots defining submultiple frequency channels. There is provided a shift register having the channel number of stages, each stage being assigned to each channel. The contents of the respective stages are changed at respectively different periods which are multiples of the basic pulse period. The contents are taken out timewise-serially, one at a time, stage by stage, and superimposed on the basic pulse to constitute a time-division-multiplexed wave data signal. The delivered signal is demultiplexed to form individual waves having respectively different frequencies which are submultiple-related to the frequency of the basic pulse. This generator is very suitable for electronic musical instruments, as a single line transmits plural wave data.
摘要翻译： 数字振荡器产生具有时钟脉冲周期的预定次数的周期的基本脉冲。 在基本脉冲周期期间，分配有预定的少量定义多个频率信道的时隙。 提供了具有通道数级的移位寄存器，每个级被分配给每个通道。 分别在基本脉冲周期的倍数的不同时段改变各个级的内容。 按时间顺序排列内容，逐个逐个取出，叠加在基本脉冲上，构成时分复用波数据信号。 所递送的信号被解复用以形成具有与基本脉冲的频率相关的分别不同频率的各个波。 该发电机非常适合电子乐器，单线传输多波数据。
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公开(公告)号：US4228712A
公开(公告)日：1980-10-21
申请号：US940381
申请日：1978-09-07
申请人： Yasuji Uchiyama , Akira Nakada , Takatoshi Okumura , Eiichiro Aoki , Eiichi Yamaga , Akiyoshi Oya
发明人： Yasuji Uchiyama , Akira Nakada , Takatoshi Okumura , Eiichiro Aoki , Eiichi Yamaga , Akiyoshi Oya
CPC分类号： G10H1/383
摘要： Key switches are connected in a matrix fashion between row lines making block lines for octaves and column lines making note lines for notes. The note lines are connected to a note detection circuit which converts the note line outputs of the actuated switches into key codes in a time shared fashion and to a chord detection circuit which includes a chord type detecting logic and a shift register connected thereto and storing the note line outputs in its respective stages. During a chord detecting period, the note detection circuit is loaded with signals "1" as if all the key switches were actuated and delivers key codes of all notes one after another, whereas the shift register is circulatingly shifted synchronously with the note code change. When the logic detects an establishment of a chord, the note code of that moment is extracted to be a code identifying the root note of the chord. The root note code is then processed for automatic bass and chord performance.
摘要翻译： 键开关以矩阵方式连接在行线之间，为八度音阶和列线制作块线，为笔记制作笔记线。 音符线连接到音符检测电路，该音符检测电路以时分方式将致动开关的音符线输出转换成键码，并将其连接到和弦检测电路，该弦检测电路包括和弦型检测逻辑和与之连接的移位寄存器， 笔记线输出在各自的阶段。 在和弦检测期间，音符检测电路装载有信号“1”，好像所有键开关都被致动，并且一个接一个地传送所有音符的键码，而移位寄存器与音符码变化同步地循环移位。 当逻辑检测到和弦的建立时，该时刻的音符代码被提取为标识和弦的根音的代码。 然后处理根音符代码以进行自动低音和和弦演奏。
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公开(公告)号：US4228403A
公开(公告)日：1980-10-14
申请号：US915239
申请日：1978-06-13
申请人： Takatoshi Okumura , Akira Nakada , Yasuji Uchiyama , Eiichiro Aoki , Eiichi Yamaga , Akiyoshi Oya
发明人： Takatoshi Okumura , Akira Nakada , Yasuji Uchiyama , Eiichiro Aoki , Eiichi Yamaga , Akiyoshi Oya
摘要： A digital oscillator generates a basic pulse having a period which is a predetermined large number of times of a clock pulse period. During the basic pulse period are allotted a predetermined small number of time slots defining submultiple frequency channels. There is provided a shift register having the channel number of stages, each stage being assigned to each channel. The contents of the respective stages are changed at respectively different periods which are multiples of the basic pulse period. The contents are taken out timewise-serially, one at a time, stage by stage, and superimposed on the basic pulse to constitute a time-division-multiplexed wave data signal. The delivered signal is demultiplexed to form individual waves having respectively different frequencies which are submultiple-related to the frequency of the basic pulse. This generator is very suitable for electronic musical instruments, as a single line transmits plural wave data.
摘要翻译： 数字振荡器产生具有时钟脉冲周期的预定次数的周期的基本脉冲。 在基本脉冲周期期间，分配有预定的少量定义多个频率信道的时隙。 提供了具有通道级数的移位寄存器，每个级被分配给每个通道。 分别在基本脉冲周期的倍数的不同时段改变各个级的内容。 按时间顺序串行地取出内容，逐个逐个取出，叠加在基本脉冲上，构成时分复用波数据信号。 所递送的信号被解复用以形成具有与基本脉冲的频率相关的分别不同频率的各个波。 该发电机非常适合电子乐器，单线传输多波数据。
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公开(公告)号：US4223584A
公开(公告)日：1980-09-23
申请号：US81
申请日：1979-01-02
申请人： Akira Nakada , Eiichiro Aoki , Akiyoshi Oya , Takatoshi Okumura , Yasuji Uchiyama , Eiichi Yamaga
发明人： Akira Nakada , Eiichiro Aoki , Akiyoshi Oya , Takatoshi Okumura , Yasuji Uchiyama , Eiichi Yamaga
CPC分类号： G10H1/188
摘要： An electronic musical instrument is provided with an upper, a lower and a pedal keyboards and musical tone generating circuits dependently corresponding to respective keyboards and, in addition thereto, an auxiliary musical tone generating circuit which is independent of the keyboards and can be selectively coupled with a particular keyboard according to the designation by a keyboard selection switch. This auxiliary musical tone generating circuit produces tone signals having a particular tone color. Key codes for a selected one of the keyboards among key codes supplied by a channel assignment circuit are latched separately in the auxiliary circuit, and musical tones corresponding to the latched key codes are produced in this particular tone color. An envelope control circuit of the electronic musical instrument includes a detection circuit which detects switching of the keyboard selection switch and the amplitude envelope of a musical tone is temporarily cleared upon detection of the switching of the keyboard selection switch.
摘要翻译： 一个电子乐器具有一个上，下和一个与各个键盘相对应的踏板键盘和乐音产生电路，另外还有一个独立于键盘的辅助乐音产生电路，并且可以选择性地与 根据由键盘选择开关指定的特定键盘。 该辅助乐音产生电路产生具有特定音色的音调信号。 由频道分配电路提供的键码之间的所选择的一个键盘的键码被分别锁存在辅助电路中，并且以该特定音色产生与锁存的键码对应的乐音。 电子乐器的包络控制电路包括检测键盘选择开关的切换的检测电路，并且在检测到键盘选择开关的切换时，音调的幅度包络被暂时清除。
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公开(公告)号：US4218948A
公开(公告)日：1980-08-26
申请号：US972031
申请日：1978-12-21
申请人： Akira Nakada , Eiichiro Aoki , Akiyoshi Oya , Takatoshi Okumura , Yasuji Uchiyama , Eiichi Yamaga
发明人： Akira Nakada , Eiichiro Aoki , Akiyoshi Oya , Takatoshi Okumura , Yasuji Uchiyama , Eiichi Yamaga
摘要： An electronic musical instrument of a key code processing type includes a single tone generating section for producing a solo performance effect without providing a solo performance keyboard. This single tone generating section comprises a single data selection circuit which selects the highest (or lowest) note from among notes of depressed keys for producing a single musical tone. The single data selection circuit includes first and second memories and a comparison circuit. An input key code A is compared with a key code X stored in the second memory and the input key code A is stored in the first memory if the value of the input key code A is greater than the value of the key code X. When one cycle of the above described comparison has been completed, the data stored in the second memory is rewritten with the data of the first memory. The key code for the highest note is now stored in the second memory to designate a tone signal to be produced for a solo performance.
摘要翻译： 一种键码处理类型的电子乐器包括一个用于产生独奏性能效果而不提供独奏性能键盘的单色产生部分。 该单音产生部分包括单个数据选择电路，其从用于产生单个乐曲的按压键的音符中选择最高（或最低）音符。 单个数据选择电路包括第一和第二存储器和比较电路。 输入键代码A与存储在第二存储器中的键代码X进行比较，并且如果输入键代码A的值大于键代码X的值，则输入键代码A被存储在第一存储器中。当 上述比较的一个周期已经完成，存储在第二存储器中的数据被第一存储器的数据重写。 最高音符的键码现在存储在第二个存储器中，以指定要为单曲演奏而产生的音调信号。
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公开(公告)号：US4179972A
公开(公告)日：1979-12-25
申请号：US841716
申请日：1977-10-13
摘要： In an electronic musical instrument, the keys of a keyboard are divided into a plurality of groups by octaves, and a wave generator is provided with a memory for storing constants corresponding to musical tone frequencies to be generated according to the notes includes in a desired group out of the plurality of group, an accumulator for repeatedly adding the constants read out of the memory, and a bit position shifting circuit for shifting the bit position of the data produced by the accumulator according to the octave range of a note to be produced, thereby to obtain the data varying repeatedly according to the frequency of a note to be produced, and to reduce the storing capacity of the memory when compared to the number of keys.
摘要翻译： 在电子乐器中，键盘的键被按八度分成多个组，并且波发生器设置有存储器，用于存储对应于根据笔记生成的乐音频率的常数包括在期望组中 在多个组中，用于反复添加从存储器读出的常数的累加器和用于根据要产生的音符的八度音程移动由累加器产生的数据的位位置的位位置移位电路， 从而获得根据要产生的音符的频率重复变化的数据，并且与键数相比减小存储器的存储容量。
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