Method and apparatus for characterizing propagation delays of in

Details Method and apparatus for characterizing propagation delays of in Method and apparatus for characterizing propagation delays of in

1986-02-18

1987-08-25

Miska, Vit W.

Horology: time measuring systems or devices

Time interval

Electrical or electromechanical

G04F 800

Patent

active

046889477

ABSTRACT:
Propagation delay of a signal through a channel is measured by cyclically generating a first step-wave signal for transmission through the channel to a two-input logic element and a second step-wave signal with a controlled delay to the second input terminal of the logic element. The logic element determines which signal is present first at its input terminals and stores a binary signal indicative of that determination for control of the delay of the second signal which is advanced or retarded for the next cycle until both the propagation delayed first step-wave signal and the control delayed step-wave signal are coincident. The propagation delay of the channel is then determined by measuring the time between the first and second step-wave signals out of the controlled step-wave signal generator.

REFERENCES:
patent: 3473115 (1969-10-01), Oliver
patent: 3681693 (1972-08-01), Hsueh
patent: 3896378 (1975-07-01), Bedford
patent: 4164648 (1979-08-01), Chu
patent: 4495628 (1985-01-01), Zasio

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