Signal sampling with sampling and reference paths

Details Signal sampling with sampling and reference paths Signal sampling with sampling and reference paths

2006-06-27

2006-06-27

Tu, Christine T. (Department: 2138)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital logic testing

C714S704000

Reexamination Certificate

active

07069488

ABSTRACT:
A signal-analyzing unit has a sampling path and a reference path both receiving a digital test signal. The sampling path has a first comparator for comparing the test signal against a first threshold value and providing a first comparison signal, and a first sampling device receiving as input the first comparison signal and a first timing signal. The reference path has a second comparator for comparing the test signal against a second threshold value and providing a second comparison signal, and a second sampling device for receiving as input the second comparison signal and a second timing signal. An analysis unit receives and analyzes the output of the sampling and reference paths.

REFERENCES:
patent: 3985956 (1976-10-01), Monti et al.
patent: 5987634 (1999-11-01), Behrens et al.
patent: 6751566 (2004-06-01), Sugai
patent: 2004/0027262 (2004-02-01), Cloetens
patent: 1 106 632 (2001-06-01), None

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