公开(公告)号：US4947723A

公开(公告)日：1990-08-14

申请号：US141422

申请日：1988-01-05

申请人： Susumu Kawashima ,  Yasuji Uchiyama

发明人： Susumu Kawashima ,  Yasuji Uchiyama

IPC分类号： G10H3/12 ,  G10H7/00 ,  G10H7/02 ,  G10H1/057 ,  G10H1/46

CPC分类号： G10H7/02 ,  G10H3/125 ,  G10H2210/066 ,  Y10S84/26

摘要： A tone signal applied from outside is sampled by a tone sampling device and the sampled waveshape data is written into a memory. During this writing operation and in parallel with the writing operation, a zero crossing point of the waveshape in terms of the sample data of the tone signal is detected. A final address detection circuit stores, each time a zero cross has been detected, a write address of the waveshape sample data with respect to the memory. Address data which is stored in the final address detection circuit when the writing of the waveshape sample data in the memory has been completed is detected as a final address of the sampled waveshape data. The waveshape data in the memory is read out either in a forward direction in a reverse direction using this final address as a start point or an end point and a tone signal corresponding to the sampled waveshape data is sounded. Such address constituting the start point or end point of reading, i.e., a reference address, can be adjusted by a reference address adjuster. It is also possible, upon completion of the writing into the memory, to read out waveshape data immediately from the memory thereby to immediately and automatically sound the sampled waveshape data which has just been written into the memory.

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

IPC分类号： G10H1/18 ,  G10H1/28 ,  G10H1/36 ,  G10H1/00

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。

公开(公告)号：US4109208A

公开(公告)日：1978-08-22

申请号：US556951

申请日：1975-03-10

申请人： Norio Tomisawa ,  Takehisa Amano ,  Yasuji Uchiyama ,  Takatoshi Okumura

发明人： Norio Tomisawa ,  Takehisa Amano ,  Yasuji Uchiyama ,  Takatoshi Okumura

IPC分类号： G10H1/057 ,  G10H7/04 ,  H03B19/00

CPC分类号： G10H7/04 ,  G10H1/0575

摘要： In a waveform producing system for use in, for example, an electronic musical instrument, a tone generator circuit and/or a tone control circuit including tone keyer circuits, each or either one of said tone generator circuit and said tone control circuit comprises: pulse generators associated with key-actuated switches, respectively; waveform memorizing means having at least one row of voltage dividers of which the division ratios are preset in characteristics corresponding to either the tone waveforms, the tone envelopes or the depression speeds of the key operated by the player of the instrument; sequential memory read-out means connected to the respective voltage dividers; and pulse generators thereby providing an enabling signal sequentially to the individual dividers every time a pulse is inputted from the pulse generators to read-out the memorized waveform in the form of a modified audio signal at the output side of the circuit. The memorized waveforms can arbitrarily be sampled (scanned) out by using a sampling circuit in the read-out means, thereby providing variations in the modified audio signal. The tone control circuit enables the tone level control in conformity to the depression speed of the key and tone envelope control without the need to employ the conventional charge-discharge circuit requiring a relatively large capacitance capacitor, and makes it easy to carry out circuit integration.

公开(公告)号：US4788896A

公开(公告)日：1988-12-06

申请号：US875479

申请日：1986-06-18

申请人： Yasuji Uchiyama ,  Shigeru Suzuki

发明人： Yasuji Uchiyama ,  Shigeru Suzuki

IPC分类号： G10H1/18 ,  G10H7/08 ,  G10H1/06 ,  G10H7/00

CPC分类号： G10H1/188

摘要： A tone generator includes a plurality of tone generation channels each comprising one or more operation channels. One operation channel performs basic operation of a tone signal computing operation (e.g., FM or AM) and a tone signal is generated by using one or more operation channels for one tone generation channel. Tone generation channels in the tone generator are established according to a selected performance mode. In a first mode, the operation channels are divided into N groups and N tone generation channels are established in correspondence to the respective operation channel groups. In a second mode, the operation channels are divided into M groups and M tone generation channels are established in correspondence to the respective operation channel groups wherein N is a different number from M. Tone generation channels of the number required according to the selected performance mode can be established by efficiently utilizing the operation channels of a limited number.

摘要翻译： 乐音发生器包括多个音调生成通道，每个音调生成通道包括一个或多个操作通道。 一个操作信道执行音调信号计算操作（例如FM或AM）的基本操作，并且通过使用用于一个音调生成通道的一个或多个操作信道来生成音调信号。 音色发生器中的音调生成通道根据选定的演奏模式建立。 在第一模式中，将操作信道划分为N组，并且对应于各个操作信道组建立N个音调生成通道。 在第二模式中，操作信道被划分为M组，并且M个音调生成通道与各个操作信道组相对应地建立，其中N是与M不同的号码。根据所选择的性能模式所需的号码的音调生成通道 可以通过有效利用有限数量的操作信道来建立。

公开(公告)号：US4424732A

公开(公告)日：1984-01-10

申请号：US376544

申请日：1982-05-10

申请人： Akio Imamura ,  Yasuji Uchiyama ,  Akira Nakada

发明人： Akio Imamura ,  Yasuji Uchiyama ,  Akira Nakada

IPC分类号： G10H1/22

CPC分类号： G10H1/22 ,  Y10S84/02

摘要： An electronic musical instrument includes an upper, lower and pedal key boards and a solo keyboard, key switches and associated circuits for producing key codes of the depressed keys, and musical tone signal generators which generate musical tone signals in accordnace with the key codes. A priority selection circuit is provided for selecting a single key code from among a plurality of concurrent key codes with respect to plural keyboards in accordance with a predetermined order of priority, and a musical signal is generated by a predetermined generating system for producing a musical tone signal generator in accordance with the selected key code. Thus, a special intermanual coupler effect is realized.

摘要翻译： 一种电子乐器包括上，下和踏板键盘以及用于产生按下的键的键代码的单独键盘，键开关和相关电路，以及根据键代码产生乐音信号的乐音信号发生器。 提供优先选择电路，用于根据预定的优先顺序从多个键盘的多个并发键码中选择单个键码，并且音频信号由用于产生音调的预定生成系统产生 信号发生器按照选择的键码。 因此，实现了特殊的人际耦合效应。

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

IPC分类号： G10H1/28 ,  G10H1/42 ,  G10H1/38

CPC分类号： G10H1/28 ,  G10H1/42 ,  Y10S84/12 ,  Y10S84/22

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。

公开(公告)号：US4204452A

公开(公告)日：1980-05-27

申请号：US911710

申请日：1978-06-02

申请人： Yasuji Uchiyama

发明人： Yasuji Uchiyama

IPC分类号： G10H1/18 ,  G10H1/22 ,  G10H5/00 ,  G10H1/00

CPC分类号： G10H5/002 ,  G10H1/182 ,  G10H1/22 ,  Y10S84/02

摘要： A monophonic electronic musical instrument comprises a single key preferential selection device. Key switches are connected in a matrix fashion between the group lines and the individual lines. The group lines are sequentially and repetitively scanned to detect the first one in the sequence of the groups where any key switch is closed, and the individual lines to which any closed key is connected deliver key detection signals, which in turn are introduced into a preference circuit to select the key detection signal of the highest priority. The group detection and the individual detection co-operatively designate a single key for tone production.

摘要翻译： 单音电子乐器包括单键优惠选择装置。 按键开关以群线和各线之间的矩阵方式连接。 组线被顺序地和重复地扫描以检测按任何键开关闭合的组的顺序中的第一组，并且连接任何闭合键的单独的线传送键检测信号，这又引入了偏好 电路选择最高优先级的按键检测信号。 组检测和个体检测可协同地指定用于音调产生的单个键。

公开(公告)号：US4026180A

公开(公告)日：1977-05-31

申请号：US581181

申请日：1975-05-27

申请人： Norio Tomisawa ,  Yasuji Uchiyama ,  Takatoshi Okumura ,  Toshio Takeda

发明人： Norio Tomisawa ,  Yasuji Uchiyama ,  Takatoshi Okumura ,  Toshio Takeda

IPC分类号： G10H1/043

CPC分类号： G10H1/043

摘要： In a digital type electronic musical instrument in which basic frequency information corresponding to a depressed key is cumulatively counted and a musical tone waveshape is read from a memory by the resultant output of the cumulative counting, a musical tone including a coarse noise is produced by randomly frequency-modulating the basic frequency of the musical tone, thereby providing the tone with a random vibrato effect. The frequency-modulation is effected by randomly adding or subtracting information expressed in the form of a certain frequency difference relative to the basic frequency information to or from the basic frequency information. According to an embodiment of the invention, a noise effect is produced only during a rise portion of the musical tone by reducing noise component in steps from the start of depression of a key and reproducing a musical tone of a normal pitch after a lapse of a predetermined period of time. The degree of the noise effect can be controlled for each individual keyboard.

摘要翻译： 在通过累积计数的合成输出累积计数与按下的键对应的基本频率信息并从存储器中读出乐音波形的数字式电子乐器中，通过随机地产生包括粗噪声的乐音 对音调的基本频率进行频率调制，从而提供具有随机颤音效果的音调。 通过以相对于基本频率信息为基准频率信息的特定频率差异的形式表示的信息，从基本频率信息中随机增加或减去信息来实现频率调制。 根据本发明的一个实施例，噪声效应仅在音乐的上升部分期间通过从键的开始逐步减小噪声分量并在经过一个音调之后再现正常音调的乐音而产生 预定时间段。 可以对每个单独的键盘控制噪音效果的程度。

公开(公告)号：US4616546A

公开(公告)日：1986-10-14

申请号：US718186

申请日：1985-03-29

申请人： Yasuji Uchiyama ,  Hideo Suzuki

发明人： Yasuji Uchiyama ,  Hideo Suzuki

IPC分类号： G10H7/08 ,  G10H7/10 ,  G10H1/00

CPC分类号： G10H7/10 ,  G10H7/08 ,  G10H2230/201 ,  G10H2250/161 ,  Y10S84/02 ,  Y10S84/20

摘要： An electronic musical instrument is provided of the type in which a musical tone signal is formed by executing computations according to a mathematical formula such as a frequency modulation formula. Tone formation of each of musical tone signals to be simultaneously formed is assigned to each time-division-multiplexed time channel which is cyclically repeated over cycles of a plurality of time slots. A computation for forming each single musical tone is divided into a plurality of sub-computations, and those subcomputations are executed respectively using a plurality of cycles of time slots of each single time channel. Thus tone formation according to a complex computation formula is realized. Parameters necessary for the computation are generated respectively for each time slot so that any computational formula is adopted as desired by selecting predetermined parameters for each time slot.

摘要翻译： 提供了通过根据诸如频率调制公式的数学公式执行计算来形成乐音信号的类型的电子乐器。 要同时形成的每个乐音信号的音调形成被分配给在多个时隙的周期上循环重复的每个时分复用时间信道。 用于形成每个单音乐的计算被分成多个子计算，并且分别使用每个单个时间信道的多个时隙周期来执行那些子计算。 因此，实现了根据复杂计算公式的色调形成。 为每个时隙分别产生计算所需的参数，以便通过选择每个时隙的预定参数，根据需要采用任何计算公式。

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.