Wander gamut display

Details Wander gamut display Wander gamut display

2003-05-01

2009-10-27

Le, John H (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Electrical signal parameter measurement system

C375S371000, C702S072000, C702S075000

Reexamination Certificate

active

07610161

ABSTRACT:
A wander gamut display for perturbation analysis is created by determining from a periodic input data signal and a reference clock a frequency offset and frequency drift rate for the input signal. The frequency offset and frequency drift rate are input to respective orthogonal axes of a Cartesian display together with a wander limit bounding box that defines the wander gamut. Values that fall outside the bounding box on the display indicate wander that may result in data errors.

REFERENCES:
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patent: 2002-118862 (2002-04-01), None
Tektronix, Inc., “VM700T (turbo) option 1S/2S serial digital video measurement set”, 1999.
William Pacino, “Principles & Metrics of Jitter and Wander”, Mar. 1997 Tutorial/Technical Article, Hong Kong engineering magazine and user manual and Windows Help file.

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