Clock error detection circuits, methods, and systems

Details Clock error detection circuits, methods, and systems Clock error detection circuits, methods, and systems

2008-03-04

2008-03-04

Lam, Tuan T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By pulse coincidence

C326S095000, C326S096000, C326S097000, C326S098000

Reexamination Certificate

active

11477833

ABSTRACT:
Clock error detections circuits can detect clock duty cycle error and/or quadrature phase error. During an evaluation phase, capacitors are charged. During an evaluation phase, the capacitors are unequally discharged based on the error. A positive feedback mechanism latches the result.

REFERENCES:
patent: 5650971 (1997-07-01), Longway et al.
patent: 6366113 (2002-04-01), Song
patent: 6424181 (2002-07-01), Pogrebnoy
patent: 6833737 (2004-12-01), Aipperspach
patent: 6894549 (2005-05-01), Eliason
patent: 7233172 (2007-06-01), Kanamori et al.
patent: 2003/0210078 (2003-11-01), Wijetunga et al.
patent: 2004/0095179 (2004-05-01), Eliason
patent: 2007/0057698 (2007-03-01), Verbauwhede et al.
Lee, Thomas H., et al., “A 2.5 V CMOS Delay-Locked Loop for an 18 Mbit, 500 Megabyte/s DRAM”, IEEE Journal of solid-state circuits, vol. 29, No. 12,(Dec. 1994),6pgs.
Yoo, C. , et al., “Open-loop full-digital duty cycle correction circuit”, Electronics letters, vol. 41, No. 11,(May 26, 2005),2pgs.

Affiliated with

Also associated with

Rating

Clock error detection circuits, methods, and systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Clock error detection circuits, methods, and systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clock error detection circuits, methods, and systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3922344