Apparatus and method for skew measurement

Details Apparatus and method for skew measurement Apparatus and method for skew measurement

2005-07-28

2008-11-18

Connolly, Mark (Department: 2115)

Electrical computers and digital processing systems: support

Clock, pulse, or timing signal generation or analysis

C702S072000

Reexamination Certificate

active

07454647

ABSTRACT:
A skew measurement system and method wherein each of the signals among which the skew is to be determined is connected one at a time to a clock recovery loop. The locked state of the clock recovery loop is used as an indicator of the skew of the data signal relative to the internal clock of the clock recovery loop. By measuring the difference between the locked state of different signals, their relative skew can be measured.

REFERENCES:
patent: 6737852 (2004-05-01), Soma et al.
patent: 6812727 (2004-11-01), Kobayashi
patent: 7275173 (2007-09-01), Lindt
patent: 2002/0196067 (2002-12-01), Schultz

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