Using the AC mains as a reference for frequency comparison

Details Using the AC mains as a reference for frequency comparison Using the AC mains as a reference for frequency comparison

2011-04-05

2011-04-05

Fan, Chieh M (Department: 2611)

Pulse or digital communications

Synchronizers

C713S400000, C713S500000, C713S501000, C713S502000, C713S503000, C331S00100A, C331S016000, C331S176000, C331S17700V

Reexamination Certificate

active

07920663

ABSTRACT:
Adjusting a local frequency source is disclosed. A local frequency comparison data is compared with a received frequency comparison data, wherein the local frequency comparison data reflects a difference, if any, between a locally measured AC frequency and a frequency generated using the local frequency source. The local frequency source is adjusted based at least in part on a result of the comparison.

REFERENCES:
patent: 5805530 (1998-09-01), Youngberg
patent: 6639957 (2003-10-01), Cahill-O'Brien et al.
patent: 6973400 (2005-12-01), Cahill-O'Brien et al.
patent: 7373124 (2008-05-01), Okanobu
patent: 2004/0165480 (2004-08-01), Shemesh et al.
patent: 2005/0085259 (2005-04-01), Conner et al.
patent: 2007/0090883 (2007-04-01), Yang et al.

Affiliated with

Also associated with

Rating

Using the AC mains as a reference for frequency comparison does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Using the AC mains as a reference for frequency comparison, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Using the AC mains as a reference for frequency comparison will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2622185