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    公开(公告)号:KR1019900003594B1

    公开(公告)日:1990-05-26

    申请号:KR1019850009931

    申请日:1985-12-28

    CPC classification number: B06B1/0276 B06B2201/20 B06B2201/55

    Abstract: A 1-bit microcomputer driven by a clock signal has two output ports. The signals from these output ports control two transistors whose signals from these transformers drive the sounding devices constructed of piezoelectric elements to produce a chord sound. The memory of the microcomputer stores a program by which two squae-wave pulse-train signals are formed of a combination of several square wave pulses. Each unit pulse train has a mutually different basic frequency and is output from the two output ports.

    Abstract translation: 由时钟信号驱动的1位微机具有两个输出端口。 来自这些输出端口的信号控制两个晶体管,这些晶体管的信号来自这些变压器驱动由压电元件构成的探测器件以产生和弦声音。 微计算机的存储器存储两个平方脉冲串信号由几个方波脉冲的组合形成的程序。 每个单位脉冲串具有相互不同的基本频率,并从两个输出端口输出。

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