Method of measuring the duration of a discontinuous signal

Details Method of measuring the duration of a discontinuous signal Method of measuring the duration of a discontinuous signal

1974-11-12

1976-02-03

Heyman, John S.

Electricity: measuring and testing

Electrical speed measuring

Including 'event' sensing means

324 78D, 328129, G04F 1000

Patent

active

039367452

ABSTRACT:
A method of measuring the duration of a discontinuous signal, which consists of groups of pulses with the duration of the gap between individual pulses in the same group being smaller then the time between groups, includes the steps of starting a time-measuring device at the time of arrival of the leading edge of the first pulse in the group whose duration is to be measured, copying the measured value from the time-measuring device without stopping that time-measuring device whenever signal gaps occur, storing each successive measured value until a timer examining the signal gaps determines that no signals have occurred for a preselected time, and displaying the measured value of the time copied from the time-measuring device at the last instant that the pulsating signal was present.

REFERENCES:
patent: 3296525 (1967-01-01), Sakuma
patent: 3461322 (1969-08-01), Hirsch et al.
patent: 3579126 (1971-05-01), Paul
patent: 3790881 (1974-02-01), Smith
patent: 3852677 (1974-12-01), Neuville
patent: 3854472 (1974-12-01), Giroi et al.

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