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公开(公告)号：US4336734A
公开(公告)日：1982-06-29
申请号：US157423
申请日：1980-06-09
申请人： Robert D. Polson
发明人： Robert D. Polson
CPC分类号： G10H1/057 , G10H1/342 , G10H2220/301 , Y10S84/30
摘要： A musical instrument is structured as a guitar and incorporates electronic circuitry to synthesize musical tones. The instrument is played in the fashion of a guitar with tones generated in response to switches activated through strumming action. The pitch of the tones is controlled by touch-sensitive switch devices mounted at addresses corresponding to fret and string locations. The instrument may be polyphonic with separate tones generated by activation of a plurality of devices corresponding to strings.
摘要翻译： 乐器被构造成吉他并且包含电子电路以合成乐音。 该乐器以吉他的方式演奏，响应于通过弹奏动作激活的开关产生的音调。 音调的音调由安装在对应于音响和弦位置的地址处的触敏开关装置控制。 仪器可以是与通过激活对应于弦的多个装置产生的分离音调的复音。
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公开(公告)号：US4326443A
公开(公告)日：1982-04-27
申请号：US145415
申请日：1980-05-01
申请人： Richard W. Bryant
发明人： Richard W. Bryant
CPC分类号： G10H1/057
摘要： An MOS integrated organ circuit compensates an audio frequency signal for variations in amplitude, attack and decay characteristics caused by process variations by adjusting a single variable reference voltage. The circuit intrinsically provides for the tracking of these characteristics, such that the attack and decay characteristics are calibrated by adjusting the variable reference voltage to provide a specified amplitude characteristic.
摘要翻译： MOS集成器件电路通过调整单个可变参考电压来补偿由频率变化引起的幅度，入射和衰减特性的音频信号。 该电路本质上提供对这些特性的跟踪，使得通过调整可变参考电压来校准攻击和衰减特性以提供指定的幅度特性。
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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：US4211141A
公开(公告)日：1980-07-08
申请号：US028615
申请日：1979-04-09
摘要： Pedal control circuits for use with an electronic musical instrument, such as a piano, which provide control functions analogous to the actions of a sustaining pedal, of a sostenuto pedal, and of a volume pedal of a conventional piano. Damper circuits operable in conjunction with a sustaining pedal provide an effect analogous to the action of the sustaining pedal in a conventional piano, a latching circuit actuated by depression of a sostenuto pedal operates in conjunction with the damper circuits in a manner analogous to the action of a sostenuto pedal in a conventional piano, and a volume pedal and associated circuitry is operative to determine the level of the output tones only at the moment of strike of the keys, an action analogous to that of the volume pedal in a conventional piano.
摘要翻译： 用于与诸如钢琴的电子乐器一起使用的踏板控制电路，其提供类似于维持踏板的动作的控制功能，以及常规钢琴的音量踏板。 可与可持续踏板相结合操作的阻尼器电路提供类似于常规钢琴中的维持踏板的作用的效果，通过按下踏板踏板而致动的闩锁电路以与阻尼器电路相类似的方式操作， 常规钢琴中的踏板踏板，以及音量踏板和相关联的电路操作，以仅在键的击打时确定输出音调的电平，类似于常规钢琴中的音量踏板的动作。
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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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公开(公告)号：US4116102A
公开(公告)日：1978-09-26
申请号：US718320
申请日：1976-08-27
申请人： Masahiko Tsunoo , Namio Hirose , Takeji Kimura , Michihiro Inoue , Masaharu Sato
发明人： Masahiko Tsunoo , Namio Hirose , Takeji Kimura , Michihiro Inoue , Masaharu Sato
摘要： The present invention is an integrated circuit for an electronic musical instrument comprising: a plurality of frequency divider chains receiving a plurality of input signals for dividing the frequencies of the input signals one after another and corresponding to a plurality of series of adjacent notes which are chromatically arranged in turn in a twelve-tone of a musical scale, respectively; keyer-gates for switching on and off the input signals and output signals of the frequency dividers of the frequency divider chains respectively; and adding means for adding at least two output signals of the keyer-gates which correspond to the adjacent notes chromatically arranged to each other, so as to produce output tone signals therefrom, respectively.
摘要翻译： 本发明是一种用于电子乐器的集成电路，包括：多个分频器链，其接收多个输入信号，用于逐个分割输入信号的频率，并对应于彩色的多个相邻音符序列 分别依次安排音阶的十二音调; 用于分别接通和关断分频器链的分频器的输入信号和输出信号的键控门; 以及添加装置，用于将与彼此色彩排列的相邻音符相对应的键控器的至少两个输出信号相加，从而分别产生输出音调信号。
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公开(公告)号：US4085374A
公开(公告)日：1978-04-18
申请号：US756351
申请日：1977-01-03
申请人： Yasuo Nagahama
发明人： Yasuo Nagahama
摘要： A control voltage waveform generator is provided with a voltage-controlled variable resistor, a storage capacitor forming a time constant circuit together with the resistor, a plurality of voltage signal sources, and a plurality of time constant determining voltage signal sources. The voltage signal sources are sequentially coupled to the storage capacitor through the voltage-controlled variable resistor, and the time constant determining voltage signal sources are sequentially coupled to the control input of the voltage-controlled variable resistor.
摘要翻译： 控制电压波形发生器具有压控可变电阻器，与电阻器形成时间常数电路的存储电容器，多个电压信号源和多个时间常数确定电压信号源。 电压信号源通过压控可变电阻器依次耦合到存储电容器，时间常数确定电压信号源顺序地耦合到压控可变电阻器的控制输入端。
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公开(公告)号：US3971284A
公开(公告)日：1976-07-27
申请号：US554437
申请日：1975-03-03
申请人： Wilford R. Schreier
发明人： Wilford R. Schreier
摘要： A plural mode envelope generator in which a basic time constant circuit is coupled by selector switches to a plurality of envelope generating means which function under the control of one or both of a keydown detector and a legato pulse generator. Fast attack-short substain and slow attack-long sustain envelope circuits involve standard techniques. A dual mode percussion circuit provides post key release sustain in one mode when the keydown detector is decoupled from the circuit and post key release tone snubbing when the keydown detector is coupled to the circuit. A sostenuto circuit with flip-flop latch includes a reset gate to hold the flip-flop in reset until sostenuto keying is desired whereupon a unidirectional circuit couples the initial keydown signal to the latch to place the flip-flop in a set state but prevents the disappearance of that signal from resetting the latch.
摘要翻译： 多模式包络发生器，其中基本时间常数电路通过选择器开关耦合到多个包络发生装置，其在键控检测器和联合脉冲发生器中的一个或两个的控制下起作用。 快速攻击 - 短距离和慢攻击 - 长维持包络线路涉及标准技术。 当键锁检测器耦合到电路时，双重模式打击电路在一个模式下提供后键释放维持，当键控检测器与电路解耦并且释放键释放音时，提供后键释放保持。 具有触发器锁存器的简单电路包括复位门，以将触发器保持在复位状态，直至需要键入键，因此单向电路将初始锁定信号耦合到锁存器以将触发器置于置位状态， 该信号从复位锁存器消失。
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公开(公告)号：US3830952A
公开(公告)日：1974-08-20
申请号：US29280972
申请日：1972-09-27
申请人： KITCHEN H
发明人： KITCHEN H
CPC分类号： G10H1/057
摘要： An electronic instrument for simulating the sound of a plucked string bass or other stringed instrument is described. The instrument incorporates a circuit in which the shunt resistance of a resistive capacitive phase shift oscillator is varied selectively in order to more closely simulate the sound generated by a stringed instrument, where the string is more taut when first plucked and consequently at a higher pitch than after its vibration has damped. The circuit also incorporates a switching arrangement whereby a note can be played either with a gradual decay following release of the key or with a decay while the key is depressed and a rapid cutoff when the key is released in order to permit the person utilizing the instrument to have effective control over the staccato effect.
摘要翻译： 描述了用于模拟采摘的琴弦低音或其他弦乐器的声音的电子乐器。 该仪器结合了一个电路，其中电阻式电容式移相振荡器的分流电阻有选择性地变化，以便更紧密地模拟由弦乐器产生的声音，其中当第一次采集时弦线更紧张，并因此以更高的俯仰比 振动衰减后。 该电路还包括切换装置，由此在释放钥匙之后可以逐渐衰减，或者当按键被按下时具有衰减，并且当释放钥匙时快速切断音符，以便允许使用乐器的人 有效控制停顿效应。
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公开(公告)号：US3828110A
公开(公告)日：1974-08-06
申请号：US37835073
申请日：1973-07-11
申请人： ARP INSTR
发明人： COLIN D
摘要： In an electronic musical instrument of the type including a keyboard and a resistor voltage divider having points there along respectively coupled by way of actuable keys associated with the keyboard to a single output bus, there is provided improved control electronics having output signals that control, for example, an envelope generator and a voltage controlled oscillator. The control electronics includes an oscillator and gate circuit coupled to the bus for providing a gate output signal which is present as long as at least one key is actuated, a sample/hold circuit coupled to the bus for providing a control voltage signal the amplitude of which is a function of the position of the actuated key, and a trigger signal means coupled to the keyboard and responsive to the gate circuit and the actuation of two or more keys for providing a trigger signal of shorter duration than the gate signal and occurring near the commencement of the gate signal.
摘要翻译： 在包括键盘和电阻分压器的类型的电子乐器中，分别具有分别通过与键盘相关的致动键耦合到单个输出总线的点，其中提供改进的控制电子器件，其具有输出信号，用于控制 例如，包络发生器和压控振荡器。 控制电子器件包括耦合到总线的振荡器和门电路，用于提供只要至少一个键被致动时存在的栅极输出信号;耦合到总线的采样/保持电路，用于提供控制电压信号的幅度 其是致动键的位置的函数，以及耦合到键盘的触发信号装置，并且响应于门电路和致动两个或更多个键，用于提供比门信号更短持续时间的触发信号，并且在接近 门信号的开始。
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