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    • 1. 发明授权
    • Electronic musical instrument
    • 电子乐器
    • US4210053A
    • 1980-07-01
    • US35900
    • 1979-05-03
    • Takeji Kimura
    • Takeji Kimura
    • G10H1/057G10H1/18G10H1/00
    • G10H1/057G10H1/182
    • An electronic musical instrument of a type in which information of actuation of keys is detected by scanning the keys of keyboard. The electronic musical instrument includes the keys selectively actuable for producing sounds which correspond to respective musical scale notes, circuitry for sequentially scanning said keys for detection of the information of the actuation of said keys, and memorizing circuitry which corresponds to each of the keys so that the information of the actuation of the keys is memorized. Each memorizing circuitry is composed of a pair of capacitors, one of which is a small capacitor for "dynamic" holding, and the other of which is a capacitor for determination of decay envelope, with the latter being sequentially connected electrically to the former.
    • 通过扫描键盘的键来检测键的致动信息的类型的电子乐器。 电子乐器包括可选择地致动的用于产生对应于各个音阶音符的声音的键,用于顺序地扫描所述键的电路,用于检测所述键的致动信息,以及对应于每个键的存储电路,使得 记忆钥匙致动的信息。 每个存储电路由一对电容器组成,其中一个是用于“动态”保持的小电容器,另一个是用于确定衰减包络的电容器,后者与前者顺序连接。
    • 4. 发明授权
    • Tone generator system for an electronic organ
    • 电子琴发声系统
    • US4056033A
    • 1977-11-01
    • US622383
    • 1975-10-14
    • Michihiro InoueTakeji KimuraMasaharu SatoMasahiko Tsunoo
    • Michihiro InoueTakeji KimuraMasaharu SatoMasahiko Tsunoo
    • G10H1/08G10H5/10G10H1/02
    • G10H5/10G10H1/08
    • A tone generator system for an electronic organ which is capable of being fabricated into an LSI structure and receives a saw-tooth wave or staircase wave as an input thereto comprises a frequency divider for the saw-tooth wave or staircase wave including a ladder resistor network and a complementary MOS FET devices, an analog switch having a wide dynamic range and a high linearity in input-output transfer characteristic constructed by MOS FET devices to serve as an indirect keying means, a sustain means including a novel structure of a variable impedance element which is constructed to control a channel current in a MOS FET device by varying the potential distribution in the source region, and an impedance coverter constructed by complementary MOS FET devices and free from a D.C. level shift. With the above arrangement a tone generator system of high quality for an electronic organ is provided.
    • 一种能够制造成LSI结构并接收锯齿波或阶梯波作为输入的电子琴的音调发生器系统包括用于锯齿波的分频器或包括梯形电阻网络的阶梯波 以及互补MOS FET器件,具有由MOS FET器件构成的用作间接键控装置的输入输出传输特性中的宽动态范围和高线性度的模拟开关,包括可变阻抗元件的新颖结构的维持装置 其被构造为通过改变源区域中的电位分布来控制MOS FET器件中的沟道电流,以及由互补MOS FET器件构成并且没有DC电平偏移的阻抗覆盖器。 通过上述配置,提供了一种用于电子机器的高品质音调发生器系统。
    • 6. 发明授权
    • Tone generator system for an electronic organ
    • 电子琴发声系统
    • US4173916A
    • 1979-11-13
    • US824802
    • 1977-08-15
    • Michihiro InoueTakeji KimuraMasaharu SatoMasahiko Tsunoo
    • Michihiro InoueTakeji KimuraMasaharu SatoMasahiko Tsunoo
    • G10H1/08G10H5/10G10H3/00G10H1/02
    • G10H5/10G10H1/08Y10S84/23
    • A tone generator system for an electronic organ which is capable of being fabricated into an LSI structure and receives a saw-tooth wave or staircase wave as an input thereto comprises a frequency divider for the saw-tooth wave or staircase wave including a ladder resistor network and a complementary MOS FET devices, an analog switch having a wide dynamic range and a high linearity in input-output transfer characteristic constructed by MOS FET devices to serve as an indirect keying means, a sustain means including a novel structure of a variable impedance element which is constructed to control a channel current in a MOS FET device by varying a potential distribution in a source region, and an impedance converter constructed by complementary MOS FET devices and free from a D.C. level shift. With the above arrangement a tone generator system of high quality for an electronic organ is provided.
    • 一种能够制造成LSI结构并接收锯齿波或阶梯波作为输入的电子琴的音调发生器系统包括用于锯齿波的分频器或包括梯形电阻网络的阶梯波 以及互补MOS FET器件,具有由MOS FET器件构成的用作间接键控器件的输入输出传输特性的宽动态范围和高线性度的模拟开关,包括可变阻抗元件的新颖结构的维持装置 其被构造为通过改变源极区域中的电位分布来控制MOS FET器件中的沟道电流,以及由互补MOS FET器件构成并且没有DC电平移位的阻抗转换器。 通过上述配置,提供了一种用于电子机器的高品质音调发生器系统。
    • 7. 发明授权
    • Electronic music instrument
    • 电子乐器
    • US4128032A
    • 1978-12-05
    • US627473
    • 1975-10-30
    • Ryoichi WadaKatsumi FujisakiMasaya NakajimaMasahiko TsunooTakeji Kimura
    • Ryoichi WadaKatsumi FujisakiMasaya NakajimaMasahiko TsunooTakeji Kimura
    • G10H7/00G10H7/04G10H1/00
    • G10H7/04G10H7/045
    • An electronic musical instrument has a plurality of tone selectors which select musical tones; a waveshape calculator which calculates a waveshape represented by amplitudes at two or more than two sampled points of one period of the selected tone and which is operative whenever the tone selectors are actuated; a plurality of waveshape memories which temporarily memorize the calculated waveshapes; clock signal generator which generates clock signals with high frequencies corresponding to pitches of depressed keyswitches of the musical instrument and which is operative whenever the keyswitches are depressed; a reading circuit which repetitively and successively reads out the memorized waveshape amplitudes by the clock signal generated by the clock signal generator; and a converter which converts the waveshape amplitudes read out by the reading circuit to a musical tone, wherein a musical tone is generated by repetitively reading out the temporarily memorized musical waveshape.
    • 电子乐器具有选择乐音的多个音调选择器; 波形计算器,其计算由所选音调的一个周期的两个或两个以上采样点处的振幅所表示的波形,并且每当音调选择器被致动时,该波形计算器可操作; 多个暂时存储计算出的波形的波形存储器; 时钟信号发生器,其产生具有对应于乐器的按下的按键开关的间距的高频的时钟信号,并且每当钥匙开关被按下时,它都是可操作的; 读出电路,其通过由时钟信号发生器产生的时钟信号重复并依次读出存储的波形幅度; 以及转换器,其将由读取电路读出的波形幅度转换为乐音,其中通过重复读出临时存储的音乐波形来生成乐音。