Methods, systems and computer program products for...

Details Methods, systems and computer program products for... Methods, systems and computer program products for...

2007-10-16

2007-10-16

Phunkulh, Bob A. (Department: 2616)

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via time channels

C327S144000, C375S356000

Reexamination Certificate

active

09951031

ABSTRACT:
Methods, systems and computer program products are provided for synchronizing clocks in a computer network. A first node clock is synchronized to a second node clock by establishing an initial value of a virtual second node clock at the first node. The initial value may be established based on the first node clock and a timing record received from the second node. A frequency bias adjustment factor is determined for the virtual second node clock based on a plurality of clock requests from the first node and a plurality of corresponding responses from the second node spaced apart in time. The responses from the second node include the timing record based on the second node clock. A time of the virtual second node clock is provided based on the frequency bias adjustment factor responsive to requests for the virtual second node clock at a time between requests.

REFERENCES:
patent: 5408506 (1995-04-01), Mincher et al.
patent: 5907685 (1999-05-01), Douceur
patent: 6157957 (2000-12-01), Berthaud
patent: 6654356 (2003-11-01), Eidson et al.
patent: 6751573 (2004-06-01), Burch
patent: 2002/0131370 (2002-09-01), Chuah et al.
patent: 2002/0186716 (2002-12-01), Eidson
Birger,Getting in Sync: A Look at NTP, Spirentcom.com, 1stQuarter 2001, pp. 14-15.
Mills,Network Time Protocol(Version 3)Specification, Implementation and Analysis, Network Working Group, Request for Comments-1305, Mar. 1992.

Affiliated with

Also associated with

Rating

Methods, systems and computer program products for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods, systems and computer program products for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods, systems and computer program products for... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3899864