| 摘要 |
PURPOSE:To obtain a stable timing pulse at a desired time from an input pulse by generating a timing signal from the input pulse when a prescribed time elapses. CONSTITUTION:An input pulse is supplied to a delay element 12 via a switch 11 to retard the pulse sequentially for times T1, T2-Tn and the pulse retarded at a time Tn by the delay element 12 is fed again to the delay element 12 via the switch 11 to be circulated. The number of times of circulation of the input pulse at the delay element 12 is counted by counter 13 and the counted N is supplied to a comparator 14. Then the output pulse in delay times T1, T2-Tn in the delay element 12 is extracted selectively by the switch 15 to obtain a delay time Tk (1<k<n), which is supplied to the comparator 14. The comparator 4 generates a timing signal at N=Nc and Tk=Tkc, that is, when a time reaches TnXNc+Tkc. Thus, a desired reception signal is extracted from the reception signal. |
