Process and device for measuring the jitter of a digital signal

Details Process and device for measuring the jitter of a digital signal Process and device for measuring the jitter of a digital signal

1995-02-17

1998-06-02

Chin, Wellington

Pulse or digital communications

Testing

Phase error or phase jitter

375371, 324600, H04B 346

Patent

active

057612412

ABSTRACT:
The jitter of a serial digital signal is measured by determining a recurrent time window and generating a measurement ramp for each window for which the amplitude of the ramp grows proportional to the positive transition of the digital signal. The amplitude of the ramps at the end of each recurrence of the time windows is converted to digital valves and the digital values are used to calculate jitter.

REFERENCES:
patent: 3737766 (1973-06-01), Lubarsky
patent: 4162453 (1979-07-01), Rudolph
patent: 4327258 (1982-04-01), Zumbahlen, Jr. et al.
patent: 4740736 (1988-04-01), Sidman et al.
patent: 4757452 (1988-07-01), Scott et al.
patent: 4974234 (1990-11-01), Brandt
Jhon D. Ryder, Electrical and Electronic Engineering Series, 1957.
Electronics International, vol. 55 (1982) No. 15. Versatile Circuit Measures Pulse Width Accurately.

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