| 摘要 |
PROBLEM TO BE SOLVED: To provide a jitter measuring instrument which measures the phase difference between the pulses before and behind an arbitrary pulse contained in pulse signals. SOLUTION: This jitter measuring instrument is provided with a pulse dividing means which generates first and second signals by dividing the pulse signals every other pulse, a first flip flop which is set by means of the first signal and reset by means of the second signal, and a second flip flop set by means of the second signal and reset by means of the first signal. This instrument is also provided with a first integrator which integrates first output signals outputted from the first flip flop, a second integrator which integrates second output signals outputted from the second flip flop, and a first maximum value detecting means which detects the first maximum value of first integrated signals outputted from the first integrator. In addition, this instrument is also provided with a second maximum value detecting means which detects the maximum value of second integrated signals outputted from the second integrator and a level discriminating means which detects the phase difference of the pulse signals as the difference between the first and second maximum values.
|
