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    • 51. 发明授权
    • Polyphonic electronic musical instrument performing D/A conversion of
tone waveshape data
    • 复音电子乐器执行音调波形数据的D / A转换
    • US4632001A
    • 1986-12-30
    • US601296
    • 1984-04-17
    • Hideo Suzuki
    • Hideo Suzuki
    • G10H7/00G10H1/18
    • G10H1/187
    • A tone generation circuit can generate digital tone signals in a plurality of channels on a time shared basis and these digital tone signals are supplied to a digital-to-analog converter provided commonly for the respective channels. The digital-to-analog converter converts the digital tone signals of the respective channels into analog signals individually for each of the channels in the time division multiplexed state. Analog memory circuits are provided for the respective channels for demultiplexing and individually holding the time division multiplexed analog tone signals supplied from the digital-to-analog converter. The analog tone signals held in the respective analog memory circuits are individually read out in synchronism with pitches of notes assigned to the respective channels. An analog adder is provided, when required, for summing up the read out analog tone signals of the respective channels.
    • 音调生成电路可以在多个频道中以时间共享的方式生成数字乐音信号,并将这些数字乐音信号提供给各个通道共同提供的数模转换器。 数模转换器以时分多路复用状态将各个通道的数字音调信号分别转换为每个通道的模拟信号。 为各个通道提供模拟存储器电路,用于解复用并单独保持从数模转换器提供的时分复用的模拟音调信号。 保持在各个模拟存储器电路中的模拟音频信号与分配给相应通道的音符的间距同步地被单独地读出。 当需要时,提供一个模拟加法器,用于对相应通道的读出的模拟音调信号进行求和。
    • 55. 发明授权
    • Switch having lock-off and lock-on
    • 开关有锁定和锁定
    • US4180716A
    • 1979-12-25
    • US959092
    • 1978-11-09
    • Hideo Suzuki
    • Hideo Suzuki
    • H01H9/20H01H3/20H01H9/06H01H13/02H01H13/08
    • H01H9/06H01H13/08H01H3/20Y10T74/2066
    • A lock-off switch comprises a lock plate rotatably disposed on a slider and having a projection at one side and a hole elongated in the lengthwise direction and a pin secured to the slider and loosely fitted in the elongated hole of the lock plate thereby to hold the lock plate rotatably. In the elongated hole of the lock plate a compression spring stretches between the pin and one end of the elongated hole, thus urging the lock plate toward a switch case. The slider has a stopper engageable with the projection of the lock plate thereby to stop the slider. An urging means, such as a compression spring, is provided at the other side of the slider and urging the projection of the lock plate into engagement with the stopper, thereby to prevent the slider from being pushed. To push the slider, the lock plate is rotated against the urging force of the urging means thereby to release the projection of the lock plate from the stopper.
    • 锁定开关包括可旋转地设置在滑块上的锁板,具有在一侧的突出部和沿长度方向延伸的孔,以及固定到滑块的销,并松动地装配在锁定板的长孔中,从而保持 锁板可旋转。 在锁板的细长孔中,压缩弹簧在细长孔的销和一端之间延伸,从而将锁板推向开关壳。 滑块具有可与锁定板的突起接合的止动件,从而停止滑块。 在滑块的另一侧设置有诸如压缩弹簧的推动装置,并且将锁定板的突起推压到止动件上,从而防止滑块被推动。 为了推动滑块,锁定板克服推动装置的推动力而转动,从而将锁定板的突起从止动件释放。