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1. 发明授权

US5371319A Key assigner for an electronic musical instrument 失效
标题翻译：电子乐器的键分配器
公开(公告)号：US5371319A
公开(公告)日：1994-12-06
申请号：US108314
申请日：1993-08-18
申请人： Yasushi Sato
发明人： Yasushi Sato
IPC分类号： G10H1/043 , G10H1/18 , G10H1/06
CPC分类号： G10H1/186 , Y10S84/08
摘要： A key assigner, for an electronic musical instrument that has a plurality of oscillators and that employs for the production of a specific timbre only the number of oscillators that is actually required. The key assigner comprises a control for, upon reception of a tone-ON command, assigning timbre generation to the oscillators by control unit, each of which includes the maximum number of oscillators required for timbre generation. Once timbre generation assignments to all the control units have been effected, and a tone-ON command for a timbre that requires fewer oscillators than compose each of the control units is received, the key assignor assigns the timbre generation to an oscillator, of one of the control units, to which timbre generation assignment has not previously been made.
摘要翻译：一种键分配器，用于具有多个振荡器的电子乐器，并且其用于仅产生特定音色仅实际需要的振荡器的数量。密钥分配器包括一个控制，用于在接收到音调接通命令时，由控制单元向振荡器分配音色生成，每个控制单元包括音色生成所需的最大振荡器数目。一旦已经实现了对所有控制单元的音色生成分配，并且接收到与构成每个控制单元相比需要更少振荡器的音色的音调开启命令，则键分配器将音色生成分配给振荡器以前没有进行音色生成分配的控制单元。

2. 发明授权

US4397211A Circuit for producing musical tones 失效
标题翻译：用于生产音乐的电路
公开(公告)号：US4397211A
公开(公告)日：1983-08-09
申请号：US335783
申请日：1981-12-30
申请人： Scott A. Ferdinand
发明人： Scott A. Ferdinand
IPC分类号： G10H1/057 , G10H1/055 , G10H1/22
CPC分类号： G10H1/057 , Y10S84/02 , Y10S84/08 , Y10S84/20
摘要： A circuit for producing musical tones is disclosed which includes a keyboard for selecting the musical tones, and a tone generator responsive to the keyboard for generating a square wave signal having the frequency of the musical note to be generated. A charging circuit is provided for charging a capacitor to a predetermined level of voltage when the square wave signal is terminated, and for exponentially discharging the capacitor when the square wave signal is initiated. A modulation circuit amplitude modulates the square wave signal in proportion to the capacitor voltage to produce an exponentially decaying signal which simulates the waveform produced by a struck piano string. A speaker is also included to convert the exponentially decaying signal into audible musical tones having the sound of piano notes. The circuit of the invention requires only a small number of components, making it suitable for use in miniature musical toys.
摘要翻译：公开了一种用于产生乐音的电路，其包括用于选择乐音的键盘和响应于键盘的音调发生器，用于产生具有要生成的音符的频率的方波信号。提供了一种充电电路，用于当方波信号终止时将电容器充电至预定电平，并且当方波信号发起时用于指数地放电电容器。调制电路根据电容器电压幅度调制方波信号，产生指数衰减信号，该信号模拟由钢琴琴弦产生的波形。还包括扬声器，以将指数衰减的信号转换成具有钢琴音符声音的可听音乐。本发明的电路仅需要少量的部件，使其适用于微型的音乐玩具。

3. 发明授权

US4206674A DC offset correction circuit for an electronic musical instrument 失效
标题翻译：用于电子乐器的直流偏移校正电路
公开(公告)号：US4206674A
公开(公告)日：1980-06-10
申请号：US917878
申请日：1978-06-22
申请人： Brian M. Bagus , Ray B. Schrecongost
发明人： Brian M. Bagus , Ray B. Schrecongost
IPC分类号： G10H1/18 , G10H1/00
CPC分类号： G10H1/181 , Y10S84/08 , Y10S84/23
摘要： A DC offset correction circuit for use in an electronic organ for eliminating audible noise or thump produced by an instantaneous DC level shift in the standard organ keyer circuit at both key depression and release. A standard keyer circuit is responsive to the depression of a key on the manual by the organist and provides a square or stairstep waveform output at a frequency representative of the note key depressed. Each keyer output waveform includes a positive or negative polarity instantaneous DC level shift at both key depression and release which when coupled through a capacitive output circuit, such as a filter, provides an undesirable audible thump. The DC offset correction circuit comprises a monitoring circuit which is responsive to both key depression and release and a detector circuit responsive to the monitoring circuit to provide a DC level signal output of opposite polarity to the instantaneous DC level shift in the keyer circuit. The correction circuit further comprises a resistive combining circuit which receives the output signals from all the keyer circuits and the output signals from the monitoring circuit to provide a corrected output signal waveform without an instantaneous DC level shift. Standard organ output circuits receive the corrected output signal and provide corresponding audio output without the undesirable audible thump.
摘要翻译：一种用于电子机器的DC偏移校正电路，用于消除在按键和释放两个状态下在标准器官键控器电路中由瞬时DC电平偏移产生的可听噪声或砰声。标准键控器电路响应于由器官按压手指上的键，并且以表示按压的音符键的频率提供正方形或者阶梯波形输出。每个键控输出波形包括在键按压和释放时的正或负极性瞬时DC电平移位，当通过电容输出电路（例如滤波器）耦合时，提供不期望的可听见的捶击。 DC偏移校正电路包括响应于键按压和释放两者的监视电路和响应于监视电路的检测器电路，以提供与键控器电路中的瞬时DC电平偏移相反极性的DC电平信号输出。校正电路还包括电阻组合电路，其接收来自所有键控电路的输出信号和来自监视电路的输出信号，以提供校正的输出信号波形而没有瞬时DC电平移位。标准器官输出电路接收校正的输出信号并提供相应的音频输出而不产生不期望的可听见的捶打。

4. 发明授权

US4121488A Step-on type tone scale play device 失效
标题翻译：步进式音阶播放装置
公开(公告)号：US4121488A
公开(公告)日：1978-10-24
申请号：US771663
申请日：1977-02-24
申请人： Kakunosuke Akiyama
发明人： Kakunosuke Akiyama
IPC分类号： G10H1/32 , G10H1/34 , G10H1/00 , G10H5/06
CPC分类号： G10H1/348 , G10H1/32 , G10H2220/341 , Y10S84/07 , Y10S84/08 , Y10S84/25
摘要： A step-on type tone scale play device has a flexible mat within which is arranged a plurality of flexible switch elements in accordance with a tone scale and is adapted to produce corresponding music sounds when marks configured on the surface of a mat to indicate the position of each switch element are stepped on.The device is very easy to keep and carry, and convenient to display or perform as compared to the conventional device, as the mat is light and capable of folding or rolling into a compact form.
摘要翻译：一种踏入式音阶播放装置具有柔性垫，其中根据音阶设置多个柔性开关元件，并且适于在垫子的表面上配置的标记指示位置时产生相应的音乐声音的每个开关元件被踩踏。

5. 发明授权

US4044643A Musical instrument circuit providing celeste and vibrato effects 失效
标题翻译：乐器电路提供celeste和颤音效果
公开(公告)号：US4044643A
公开(公告)日：1977-08-30
申请号：US570650
申请日：1975-04-23
申请人： Willis E. Chase
发明人： Willis E. Chase
IPC分类号： G10H1/02 , G10H1/10 , G10H5/02
CPC分类号： G10H1/02 , G10H1/10 , Y10S84/04 , Y10S84/08
摘要： A circuit is shown for changing the frequency of a basic keyed oscillator by controlling the amount of keying voltage reaching the oscillator and the circuit used for vibrato. The purpose of this circuit is the achievement of true "pipe organ celeste" effect without using an added rank or set of oscillators. Circuits are described wherein the harmonic structure of the signal resulting from this modification of a basic keyed oscillator can be made to change by means of controlling the amount of keying voltage reaching the oscillator for the purpose of achieving the desired harmonic structure of the rank when operated in the "non-celeste" mode as opposed to the "celeste" mode. A circuit is also described for amplitude modulation and harmonic structure modulation at the vibrato rate to enhance the vibrato.
摘要翻译：示出了通过控制到达振荡器的键控电压量和用于颤音的电路来改变基本键控振荡器的频率的电路。该电路的目的是实现真正的“管风琴”效果，而不使用添加的等级或振荡器组。描述了这样的电路，其中通过控制到达振荡器的键控电压的量可以改变由基本键控振荡器的这种修改产生的信号的谐波结构，以便在操作时实现秩的期望谐波结构在“非celeste”模式，而不是“celeste”模式。还描述了用于振幅调制和谐波结构调制的电路，以增加颤音。

6. 发明授权

US4023455A Circuit for imitating the speech characteristics of reed organ pipes 失效
标题翻译：模仿芦苇器官管道语音特征的电路
公开(公告)号：US4023455A
公开(公告)日：1977-05-17
申请号：US641716
申请日：1975-12-17
申请人： Richard H. Peterson
发明人： Richard H. Peterson
IPC分类号： G10H5/00 , G10H1/08 , G10H1/02
CPC分类号： G10H1/08 , Y10S84/08 , Y10S84/09 , Y10S84/10 , Y10S84/19
摘要： In an electronic musical instrument, such as an electronic organ, the speech characteristics of reed organ pipes are simulated by applying pulses produced by key-actuated tone generators, which pulses are preferably narrow as compared to their repetition frequency, to a low-pass filter, the pass characteristic of which has a relatively sharp knee and a very rapid rate of rolloff, thereby to sharply attenuate the harmonics contained in the pulse which have frequencies above the cutoff frequency. The resultant tone passed by the filter is surprisingly reed-like in character, and by changing the cutoff frequency, reed-like voices of differing properties, imitative for example, of an organ Oboe tone, an orchestral Oboe tone, a Clarinet, a Kinura or a Trompette are obtained. The change in pitch that occurs in a reed organ pipe when the reed is just opening or just closing, which contributes significantly to the unique sound of reed pipes, is simulated by automatically adjusting as a function of time the cutoff frequency of the filter from its lowest cutoff frequency when no keys of the organ are played to the higher cutoff frequency appropriate to produce the desired reed voice. A single automatic filter can be used for all of the notes over a range of many octaves, or separate filters can be used for smaller groups of notes including, for example, some or all of the notes in a single octave. Organ tones simulating "flue" pipes may be produced simultaneously from the same tone generators by conventional filter means.
摘要翻译：在诸如电子器官的电子乐器中，通过施加由键驱动音产生器产生的脉冲来模拟芦苇器官管的语音特性，该脉冲优选地与它们的重复频率相比窄到低通滤波器，其通过特性具有相对较高的拐点和非常快的滚降速率，从而急剧衰减包含在具有高于截止频率的频率的脉冲中的谐波。过滤器通过的结果是令人惊讶的是簧片般的特征，通过改变截止频率，不同性质的芦苇样声音，例如器官双簧管音色，管弦乐双簧管音色，单簧管，Kinura 或Trompette。当芦苇正在打开或刚刚闭合时，在芦苇器官管中发生的间距变化，这对簧管的独特声音有显着贡献，通过自动调节滤波器的截止频率与时间的函数，当器官的键没有播放到适合于产生期望的舌头声音的较高截止频率时的最低截止频率。单个自动过滤器可用于许多八度的范围内的所有音符，或者单独的滤镜可用于较小的音符组，例如单个八度音阶中的某些或全部音符。可以通过常规的过滤装置从相同的音调发生器同时产生模拟“烟道”管的器官音。

7. 发明授权

US3986426A Music synthesizer 失效
标题翻译：音乐合成器
公开(公告)号：US3986426A
公开(公告)日：1976-10-19
申请号：US608806
申请日：1975-08-28
申请人： Mark Edwin Faulhaber
发明人： Mark Edwin Faulhaber
IPC分类号： G10H1/08 , G10H5/00 , G10H1/06 , G10H5/06
CPC分类号： G10H1/08 , G10H5/002 , Y10S84/08 , Y10S84/09 , Y10S84/19
摘要： A music synthesizer produces pitch-proportional voltages in a novel resistor network, uses these voltage via keyboard control to generate in a voltage-controlled oscillator a high frequency signal, being a multiple of all the harmonic frequencies desired, separates the individual harmonics, converts them to sine waves with voltage-controlled tunable tracking filters, blends the waves in desired proportions, introduces transients of attack, decay, sustain, and release of key into each note, and introduces appropriate vibrato. An alternate apparatus accepts an external signal and converts it to voltages proportional to frequency, whereby accompaniment on pitch, in "close harmony" or more distantly related, is provided.
摘要翻译：音乐合成器在新型电阻网络中产生音调比例电压，通过键盘控制使用这些电压，在压控振荡器中产生高频信号，为所需的所有谐波频率的倍数，分离各个谐波，转换它们使用电压可调谐跟踪滤波器将正弦波与所需比例混合，将每个音符中的键的瞬态冲击，衰减，延续和释放引入到适当的颤音中。替代设备接受外部信号并将其转换成与频率成比例的电压，从而提供“紧密协调”或更远相关的音调伴奏。

8. 发明授权

US3902392A Electronic musical instrument of voltage-controlled tone production type 失效
标题翻译：电压音乐生产型电子乐器
公开(公告)号：US3902392A
公开(公告)日：1975-09-02
申请号：US47282774
申请日：1974-05-23
申请人： NIPPON MUSICAL INSTRUMENTS MFG
发明人： NAGAHAMA YASUO
IPC分类号： G10H1/053 , G10H1/057 , G10H1/18 , G10H5/00
CPC分类号： G10H5/002 , G10H1/181 , Y10S84/08 , Y10S84/20
摘要： An electronic musical instrument comprises a playing-board section for generating a voltage signal of one polarity by a depression on the board for determining a tone frequency corresponding to the depressed position and a voltage signal of the opposite polarity by the release of the depression, a comparator for comparing the voltage signal with the ground potential and providing a keying signal, a delay-memory circuit for giving a delay to the voltage signal and holding the voltage until a new depression under the control of the keying signal, a voltage-controlled musical tone synthesizer connected to the delay-memory circuit for generating a musical tone signal of a frequency determined by the voltage, and a delay circuit connected between the comparator and the voltage-controlled musical tone synthesizer for keying the musical tone with a delayed keying signal. An undesirable transient voltage change is prevented effectively by the combination of the delay-memory and the delay circuit.
摘要翻译：一种电子乐器包括一个播放板部分，用于通过板上的凹陷产生一个极性的电压信号，用于通过释放该凹陷来确定与该按压位置相对应的音调频率和一个具有相反极性的电压信号; 比较器，用于将电压信号与地电位进行比较并提供键控信号;延迟存储器电路，用于给电压信号提供延迟并保持电压，直到在键控信号的控制下新的按压，电压控制的音乐连接到延迟存储电路的音调合成器，用于产生由该电压确定的频率的乐音信号;以及延迟电路，连接在比较器和压控音乐合成器之间，用于利用延迟的键控信号键入乐音。通过延迟存储器和延迟电路的组合有效地防止了不期望的瞬态电压变化。

9. 发明授权

US3872764A Sample and hold circuit for an electric organ 失效
标题翻译：为电气机构采样和保持电路
公开(公告)号：US3872764A
公开(公告)日：1975-03-25
申请号：US37028373
申请日：1973-06-15
申请人： BALDWIN CO D H
发明人： MUNCH JR WALTER , UETRECHT DALE M , STUDER RICHARD L
IPC分类号： G10H1/22 , G10H5/00 , G10H1/00
CPC分类号： G10H1/22 , G10H5/002 , Y10S84/02 , Y10S84/08 , Y10S84/10 , Y10S84/20
摘要： A sample and hold circuit for an electric organ, in which the voltage across a cascade or resistances, selected points of which may be grounded by key switches of an electric organ, is maintained at a fixed predetermined voltage by means of a feedback circuit and the voltage output of the feedback circuit is used to control the frequency of a voltage controlled tone signal oscillator, the value of the feedback voltage required being a function of the identity of the closed key switch which represents the highest note played, if plural key switches are closed.

10. 发明授权

US3636231A Dc keyed synthesis organ employing an integrated circuit 失效
标题翻译： DC关键合成器件采用集成电路
公开(公告)号：US3636231A
公开(公告)日：1972-01-18
申请号：US3636231D
申请日：1971-04-19
申请人： HAMMOND CORP
发明人： SCHRECONGOST RAY B , MILLET DAVID
IPC分类号： G10H1/08 , G10H1/06
CPC分类号： G10H1/08 , Y10S84/08
摘要： A synthesis-type organ with direct current keying, envelope shaping and individual harmonic scaling particularly adapted to be compatible with frequency divider and MOSFET integrated circuit techniques. A DC voltage is scaled to several appropriate selected levels for the fundamental and individual harmonics and chopped by tone signals for the fundamental and selected harmonics to provide a collection of appropriately scaled square wave signals at the chopping frequencies. These square waves are individually keyed with appropriate envelope control through band pass sine filters adapted to reject all but the fundamentals of the keyed signals. The filtered outputs are mixed to supply output musical signals of appropriate harmonic quality having a desirable attack and decay envelope.
摘要翻译：具有直流键控，包络整形和单独谐波缩放的合成型器件，特别适用于与分频器和MOSFET集成电路技术兼容。直流电压被缩放到用于基波和单个谐波的几个适当的选择电平，并且由基频和选定谐波的音调信号切断，以提供在斩波频率下适当缩放的方波信号的集合。这些方波通过适合于拒绝所有键控信号的基本原理的通带正弦滤波器通过适当的包络控制进行单独键控。经滤波的输出被混合以提供具有所需攻击和衰减包络的适当谐波质量的输出音乐信号。

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