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    • 10. 发明授权
    • Recirculating delay line digital pulse generator having high control
proportionality
    • 具有高控制比例的再循环延迟线数字脉冲发生器
    • US5525939A
    • 1996-06-11
    • US501269
    • 1995-07-12
    • Shigenori YamauchiTakamoto Watanabe
    • Shigenori YamauchiTakamoto Watanabe
    • H03K3/03H03K5/135H03B5/24H03K3/012H03K3/027
    • H03K3/0315H03K5/135
    • In a digital control pulse generator including a ring oscillator composed of multiple inversion circuits connected in a ring for circulating a pulse, a counter and selectors which turn data of a flip-flop to high when a counted value of the pulse from a terminal of the ring oscillator becomes a value corresponding to ten high order bits of control data, a pulse selector for taking out a clock of the flip-flop from the inversion circuit at the position specified by four bit control data and a delay line and logical product circuit which turn an output signal of the system to a high level for a predetermined time when the output of the flip-flop turns high, a register and adder accumulate the four low order bits of the control data every time the output signal turns high to update the data four bit data. As a result, the ring oscillator may be continuously operated and an oscillation cycle proportional to the control data may be set.
    • 在包括环形振荡器的数字控制脉冲发生器中,所述环形振荡器由连接在环中以循环脉冲的多个反相电路组成,计数器和选择器将触发器的数据值从 环形振荡器成为对应于控制数据的十个高位位的值,用于在由四位控制数据指定的位置处的反相电路中取出触发器的时钟的脉冲选择器和延迟线以及逻辑积电路, 当触发器的输出变为高电平时,将系统的输出信号转换到高电平达预定时间,寄存器和加法器在每当输出信号变为高电平时累积控制数据的四个低位,以更新 数据四位数据。 结果,可以连续地操作环形振荡器,并且可以设置与控制数据成比例的振荡周期。