Jitter measuring apparatus and a testing apparatus

Details Jitter measuring apparatus and a testing apparatus Jitter measuring apparatus and a testing apparatus

2006-02-21

2006-02-21

Nguyen, Vincent Q. (Department: 2858)

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

C375S226000, C375S371000

Reexamination Certificate

active

07002334

ABSTRACT:
A jitter measuring apparatus for measuring jitter of an output signal output by an electronic device is provided, wherein the jitter measuring apparatus includes a multi-strobe generating unit for generating multi-strobe having more than or equal to three (3) strobes a plurality of times synchronously with the output signal output a plurality of times by the electronic device, a value detecting unit for detecting a value of the output signal for each strobe of the multi-strobe generated a plurality of times by the multi-strobe generating unit, a transition point detecting unit for detecting the position of a transition point of the value of each output signal on the basis of the value of the output signal detected by the value detecting unit, and a histogram generating unit for counting how many times the transition point detecting unit detects the transition point at every position of the transition point of the value of the output signal.

REFERENCES:
patent: 5452333 (1995-09-01), Guo et al.
patent: 6661836 (2003-12-01), Dalal et al.
patent: 2002/0053048 (2002-05-01), Matsumoto et al.
Publication No. WO 2004/031785 with International Search Report dated Jan. 13, 2004 (2 pages).

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