Frequency synchronisation of clocks

Details Frequency synchronisation of clocks Frequency synchronisation of clocks

2003-02-20

2009-12-08

Phunkulh, Bob A (Department: 2419)

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via time channels

C370S516000, C375S355000, C375S356000

Reexamination Certificate

active

07630407

ABSTRACT:
The frequency of a local clock of a local data processor in communication with an asynchronous switched packet network is synchronized to the frequency of a reference clock of a source data processor also coupled to the network. Timing packets each including a field containing the destination address of the local processor and a field containing reference clock data indicating the time at which the packet is launched onto the network are sent to the local data processor from the source data processor across the network. The frequency of the local clock is controlled in dependence on the reference clock data and the times of arrival of the packets.

REFERENCES:
patent: 5381181 (1995-01-01), Deiss
patent: 5544150 (1996-08-01), Fujimoto et al.
patent: 5550873 (1996-08-01), Dolev et al.
patent: 5566180 (1996-10-01), Eidson et al.
patent: 5689688 (1997-11-01), Strong et al.
patent: 5784421 (1998-07-01), Dolev et al.
patent: 5966387 (1999-10-01), Cloutier
patent: 5995570 (1999-11-01), Onvural et al.
patent: 6049886 (2000-04-01), Motoyama
patent: 6144714 (2000-11-01), Bleiweiss et al.
patent: 6148051 (2000-11-01), Fujimori et al.
patent: 6278710 (2001-08-01), Eidson
patent: 6449291 (2002-09-01), Burns et al.
patent: 6470032 (2002-10-01), Dudziak et al.
patent: 6744789 (2004-06-01), Michener
patent: 6842463 (2005-01-01), Drwiega et al.
patent: 6975652 (2005-12-01), Mannette et al.
patent: 6975653 (2005-12-01), Eidson
patent: 6975655 (2005-12-01), Fischer et al.
patent: 2002/0136232 (2002-09-01), Dudziak et al.
patent: 2002/0186716 (2002-12-01), Eidson
patent: 2000-332802 (2000-11-01), None
patent: 2001-186180 (2001-07-01), None
patent: WO 02 09331 (2002-01-01), None

Affiliated with

Also associated with

Rating

Frequency synchronisation of clocks does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Frequency synchronisation of clocks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency synchronisation of clocks will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4148525