Excavating
Patent
1985-02-28
1987-06-30
Smith, Jerry
Excavating
364189, 324 73R, 340814, G06F 1100, G01R 1700
Patent
active
046776206
ABSTRACT:
A method for adjusting a time delay of a signal with respect to a reference event is achieved by displaying a graphical representation of the delay time on a display terminal, modifying the displayed graphical depiction to indicate a different time delay, and then adjusting the time delay of the signal to match the modified time delay indicated by the displayed graphical depiction. The display terminal is controlled by a display controller and the graphical depiction of the delay time is modified by an operator using cursor control keys of a keyboard to transmit a first indicating signal to the display controller and other keys of the keyboard to transmit a second indicating signal to the display controller. Each time the controller detects a first indicating signal, the graphically displayed delay time is incremented and each time the controller detects a second indicating signal, the graphically displayed delay time is decremented. The controller automatically adjusts the actual test signal delay time after the displayed delay time has been adjusted.
REFERENCES:
patent: 3728679 (1973-04-01), McIntosh
patent: 4024498 (1977-05-01), McIntosh
patent: 4139147 (1979-02-01), Franke
patent: 4331029 (1982-05-01), Wilson
patent: 4488297 (1984-12-01), Vaid
patent: 4490821 (1984-12-01), Lacher
Hoeren Gerd H.
Sutton Steven R.
Beausoliel, Jr. Robert W.
Dellett John P.
Gray Francis I.
Smith Jerry
Tektronix Inc.
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