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    • 3. 发明申请
    • PERIOD-TO-DIGITAL CONVERTER
    • 周期到数字转换器
    • WO2004068718A1
    • 2004-08-12
    • PCT/GB2004/000341
    • 2004-01-27
    • ARKAS, EvangelosARKAS, Nicholas
    • ARKAS, EvangelosARKAS, Nicholas
    • H03M1/14
    • G04F10/005
    • A period-to-digital converter includes a clock (1) for generating a timing signal, delay lines (2) for producing cumulatively incrementally delayed timing signals for each cycle of the timing signal and an isolator (3) connected in parallel to the delay lines for generating a signal indicative of a number of partial cycles of timing signal corresponding to which to the incrementally delayed timing signals last contained a specific feature. First and second counters (5, 8) connected to the isolator are enabled for successive time periods to be measured and the first and second latches (11, 12) respectively connected to the first and second counters are latched at the end of alternate successive time periods respectively. An arithmetic module (22) connected to the first and second latches obtains difference values between their output values, which difference values are representative of the successive time periods respectively.
    • 周期数字转换器包括用于产生定时信号的时钟(1),用于产生用于定时信号的每个周期的累积递增延迟的定时信号的延迟线(2)和与延迟并联连接的隔离器(3) 用于产生指示对应于最后延迟定时信号的定时信号的部分周期的数量的信号的线包含特定特征的线。 连接到隔离器的第一和第二计数器(5,8)被启用以连续的时间段被测量,并且分别连接到第一和第二计数器的第一和第二锁存器(11,12)在交替的连续时间结束时被锁存 期间。 连接到第一和第二锁存器的算术模块(22)获得它们的输出值之间的差值,该差分值分别表示连续的时间段。