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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
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.
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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
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。
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公开(公告)号：US4308779A
公开(公告)日：1982-01-05
申请号：US125172
申请日：1980-02-27
申请人： Hideo Suzuki , Kenji Itakura , Yasuji Uchiyama
发明人： Hideo Suzuki , Kenji Itakura , Yasuji Uchiyama
CPC分类号： G10H1/057
摘要： In a control waveform generator for an electronic musical instrument of the type wherein the generator generates a control waveform adapted to control at least one of a tone pitch, a tone color and a tone volume, the control waveform generator is constituted by a pulse generator for generating a pulse signal having a repetitive frequency, and a detector including a counter which starts to count the number of the pulse signals when a key is depressed. The detector generates a first detection signal during an interval between depression of the key and a time at which a counter reaches a predetermined value and then produces a second detection signal until the depressed key is released. The control waveform generator further comprises a capacitor whose terminal voltage is taken out as the control waveform, a first charging or discharging circuit responsive to the first detection signal for charging or discharging the capacitor, a second discharging or charging circuit responsive to the second detector signal for discharging or charging the capacitor, and a third discharging or charging circuit for discharging or charging the capacitor when the depressed key is released.
摘要翻译： 在这种类型的电子乐器的控制波形发生器中，其中发生器产生适于控制音调，音色和音量的至少一个的控制波形，控制波形发生器由用于 产生具有重复频率的脉冲信号，以及包括计数器的检测器，当按下键时开始对脉冲信号的数量进行计数。 检测器在键的按压和计数器达到预定值的时间之间的间隔期间产生第一检测信号，然后产生第二检测信号，直到按下的键被释放。 控制波形发生器还包括一个电容器，其端电压取出作为控制波形，第一充电或放电电路响应第一检测信号对电容器进行充电或放电，第二放电或充电电路响应于第二检测器信号 用于对电容器进行放电或充电;以及第三放电或充电电路，用于当按下的键被释放时对电容器进行放电或充电。
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公开(公告)号：US4064778A
公开(公告)日：1977-12-27
申请号：US674317
申请日：1976-04-07
申请人： Yasuji Uchiyama
发明人： Yasuji Uchiyama
摘要： A carrier wave having a sub-audible frequency is modulated in amplitude by a modulating wave of a tone signal having an audible frequency, which produces a resultant modulated output signal having first and second side band components respectively deviated above and below the tone signal frequency by a deviation amount equal to the carrier frequency. The frequency of the carrier wave is much lower than that of the modulating wave. This frequency deviation technique is utilized to provide a tremolo effect or a chorus effect in an electronic musical instrument, wherein the frequency-deviated signal is admixed with the original non-deviated signal.
摘要翻译： 具有子听觉频率的载波通过具有可听频率的音调信号的调制波在幅度上调制，该调制波产生具有分别在音调信号频率之上和之下分别偏离音调信号频率的第一和第二边带分量的合成调制输出信号， 偏移量等于载波频率。 载波的频率远低于调制波的频率。 这种频率偏差技术用于在电子乐器中提供颤音效果或合唱效果，其中频率偏移信号与原始的非偏移信号混合。
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公开(公告)号：US4747332A
公开(公告)日：1988-05-31
申请号：US842933
申请日：1986-03-24
申请人： Yasuji Uchiyama , Hideo Suzuki
发明人： Yasuji Uchiyama , Hideo Suzuki
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 sub-computations 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。
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公开(公告)号：US4315451A
公开(公告)日：1982-02-16
申请号：US114248
申请日：1980-01-22
申请人： Yasuji Uchiyama , Akira Nakada , Akio Imamura
发明人： Yasuji Uchiyama , Akira Nakada , Akio Imamura
摘要： An electronic musical instrument is of a key assigner type including a key coder and a channel processor, and is equipped with an automatic bass/chord performance faculty. The key coder includes a root note memory and a chord type memory, whereas the channel processor includes a key code memory and a key-on memory. The instrument is provided with a chord note memory function rendering switch and a bass note memory function rendering switch. When the chord note memory function rendering switch is turned on, the key-on memory is not cleared after release of the keys for conducting a automatic performance of chord tones. When the bass note memory function rendering switch is turned on, the root note memory and the chord type memory are not cleared after release of the keys for conducting an automatic performance of bass tones.Thus a bass-note memorized automatic accompaniment performance and a chord-note memorized automatic accompaniment performance are independently selectable.
摘要翻译： 电子乐器是包括钥匙编码器和通道处理器的键分配器类型，并且配备有自动低音/和弦演奏教师。 密钥编码器包括根音存储器和和弦型存储器，而信道处理器包括键码存储器和键入存储器。 仪器配备有和弦记忆功能渲染开关和低音记忆功能渲染开关。 当和弦音乐记忆功能呈现开关打开时，释放用于进行自动演奏和弦音调的按键后，按键存储器不会被清除。 当低音笔记忆功能呈现开关打开时，释放用于进行自动演奏低音的琴键后，根音记忆体和和弦型存储器不会被清除。 因此，可以独立选择低音记忆自动伴奏表演和和弦记忆自动伴奏演奏。
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公开(公告)号：US4232581A
公开(公告)日：1980-11-11
申请号：US895697
申请日：1978-04-12
申请人： Yasuji Uchiyama
发明人： Yasuji Uchiyama
CPC分类号： G10H1/383 , G10H2210/616 , Y10S84/12 , Y10S84/22
摘要： An automatic accompaniment apparatus capable of automatically producing a bass tone by developing notes constituting a chord in the form of a broken chord in a predetermined order when keys constituting such chord are depressed. When a plurality of keys are depressed, there often exist a plurality of different chords constituted of notes corresponding to the depressed keys. The automatic accompaniment apparatus according to the invention is adapted to detect a single chord name among these plural chords in a certain predetermined order of preference and use the fundamental note and other notes constituting the detected chord as the bass accompaniment tone. The apparatus is capable of selectively restricting generation of notes other than the fundamental note which would normally be generated in the bass accompaniment using a predetermined note as the fundamental note, thereby providing bass variation effects to the generated bass tone.The apparatus is also capable of performing a chord while producing a bass tone in the form of a broken chord of a selected chord by using a note corresponding to a single depressed key as the fundamental note and designating suitable notes as the notes other than the fundamental note constituting the chord.Another example of the apparatus is disclosed in which a tone range within which the bass tone can be produced consists of plural octaves and the tone range can be adjusted in accordance with a kind of rhythm or chord.
摘要翻译： 一种自动伴奏装置，当按下构成这种和弦的按键时，能够通过以预定顺序以破坏的弦的形式开发构成和弦的音符来自动产生低音。 当多个按键被按下时，通常存在由对应于按下的键的音符构成的多个不同的和弦。 根据本发明的自动伴奏装置适于以某种预定的优先顺序来检测这些多个和弦中的单个和弦名称，并且使用构成检测到的和弦的基本音符和其他音符作为低音伴奏音。 该设备能够选择性地限制除基本音符之外的音符的产生，该音符通常在低音伴奏中使用预定音符作为基本音符，从而为生成的低音提供低音变化效果。 该装置还能够通过使用对应于单个按压键的音符作为基本音符并以适当的音符作为除基本音符之外的音符，以所选择的和弦的断弦的形式产生低音， 音符构成和弦。 公开了该装置的另一示例，其中可以产生低音的音调范围由多个八度音程组成，并且可以根据节奏或和弦的种类来调节音调范围。
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公开(公告)号：US4186640A
公开(公告)日：1980-02-05
申请号：US876913
申请日：1978-02-13
申请人： Teruo Hiyoshi , Akira Nakada , Yasuji Uchiyama , Eiichi Yamaga , Eiichiro Aoki
发明人： Teruo Hiyoshi , Akira Nakada , Yasuji Uchiyama , Eiichi Yamaga , Eiichiro Aoki
摘要： An electronic musical instrument comprises an automatic rhythm performance device, an automatic bass chord performance device and an automatic arpeggio performance device. Each device has its own start-stop control circuit and a control in/out terminal. When a device is start-stop controlled, a control signal appears at the control in/out terminal, whereas if a control signal is externally applied to the control in/out terminal, the device is start-stop controlled. The control in/out terminals of the respective devices are connected together by a common line so that a start-stop of one device causes the start-stop of other devices.
摘要翻译： 电子乐器包括自动节奏演奏装置，自动低音和弦演奏装置和自动琶音演奏装置。 每个设备都有自己的启停控制电路和控制输入/输出端子。 当设备启动停止控制时，控制输入/输出端子出现控制信号，而如果控制信号外部施加到控制输入/输出端子，则该设备被启动停止控制。 各个设备的控制输入/输出端子通过公共线路连接在一起，使得一个设备的启动停止导致其他设备的启动停止。
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公开(公告)号：US3973462A
公开(公告)日：1976-08-10
申请号：US163034
申请日：1971-07-15
申请人： Yasuji Uchiyama
发明人： Yasuji Uchiyama
摘要： A carrier wave having a sub-audible frequency is modulated in amplitude by a modulating wave of a tone signal having an audible frequency, which produces a resultant modulated output signal having first and second side band components respectively deviated above and below the tone signal frequency by a deviation amount equal to the carrier frequency. The frequency of the carrier wave is much lower than that of the modulating wave. This frequency deviation technique is utilized to provide a tremolo effect or a chorus effect in an electronic musical instrument, wherein the frequency-deviated signal is admixed with the original non-deviated signal.
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公开(公告)号：US3973223A
公开(公告)日：1976-08-03
申请号：US574681
申请日：1975-05-05
申请人： Yasuji Uchiyama
发明人： Yasuji Uchiyama
CPC分类号： G10H1/043
摘要： A carrier wave having a sub-audible frequency is modulated in amplitude by a modulating wave of a tone signal having an audible frequency, which produces a resultant modulated output signal having first and second side band components respectively deviated above and below the tone signal frequency by a deviation amount equal to the carrier frequency. The frequency of the carrier wave is much lower than that of the modulating wave. This frequency deviation technique is utilized to provide a tremolo effect or a chorus effect in an electronic musical instrument, wherein the frequency-deviated signal is admixed with the original non-deviated signal.
摘要翻译： 具有子听觉频率的载波通过具有可听频率的音调信号的调制波在幅度上调制，该调制波产生具有分别在音调信号频率之上和之下分别偏离音调信号频率的第一和第二边带分量的合成调制输出信号， 偏移量等于载波频率。 载波的频率远低于调制波的频率。 这种频率偏差技术用于在电子乐器中提供颤音效果或合唱效果，其中频率偏移信号与原始的非偏移信号混合。
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