Time interval measuring apparatus

Details Time interval measuring apparatus Time interval measuring apparatus

1993-08-16

1994-06-07

Miska, Vit W.

Horology: time measuring systems or devices

Time interval

Electrical or electromechanical

G04F 800, G04F 1000

Patent

active

053196147

ABSTRACT:
A time interval measuring apparatus for measuring a time interval between two input signals and a signal period of either one of the input signals is capable of detecting and canceling the time difference in the signal propagation times between the two signal paths which transmit two input signals to be measured to an inner circuit of the time interval measuring apparatus. The true time interval is calculated by using the first time interval measurement result obtained when the first and second switches are switched to the first and second input terminals respectively, and the second time interval measurement result obtained when the second and first switches are switched to the first and second input terminals respectively, and the signal period of the input signal. The difference between the signal propagation times in the two input signal paths is canceled by the calculation part. The true time interval, the signal period and the phase difference between the input signals are displayed on the display.

REFERENCES:
patent: 3983481 (1976-09-01), Nutt et al.
patent: 4090141 (1978-05-01), LeBlanc
patent: 4097801 (1978-06-01), Freeman et al.
patent: 4164648 (1979-08-01), Chu
patent: 4613951 (1986-09-01), Chu

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