Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via time channels
Reexamination Certificate
2006-10-03
2010-02-09
Vu, Huy D (Department: 2461)
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via time channels
C370S518000, C375S354000, C398S154000, C398S155000
Reexamination Certificate
active
07660330
ABSTRACT:
A novel clock synchronization mechanism for recovering and distributing a centralized clock source synchronously over asynchronous networks such as optical Ethernet. A clock conversion scheme is provided whereby multiple clocks having diverse rates are converted to clock signals all having a common rate. One of the converted clocks is chosen and all downstream clock signals is derived from this clock. A high quality clock source located anywhere on the network is distributed throughout the network thus turning an asynchronous Ethernet network into a synchronous one. Synchronous TDM data streams can then be easily transported over the Ethernet network.
REFERENCES:
patent: 4746920 (1988-05-01), Nellen et al.
patent: 6058479 (2000-05-01), Sørhaug et al.
patent: 6226296 (2001-05-01), Lindsey et al.
patent: 6370159 (2002-04-01), Eidson
patent: 6539138 (2003-03-01), Holmes
patent: 6832347 (2004-12-01), Parrish
patent: 6870844 (2005-03-01), Tuck et al.
patent: 6943610 (2005-09-01), Saint-Laurent
patent: 2003/0039272 (2003-02-01), Dudziak et al.
patent: 2004/0101311 (2004-05-01), Grohn
patent: 2005/0135813 (2005-06-01), Cao
“Clocks for the Synchronized Network: Common Generic Criteria”, Telecordia Tehcnologies, GR-1244-COREm Issue 2, Dec. 2000, pp. 3-2 to 3-16.
International Telecommunication Union (ITU) Draft Specification G.8261, Feb. 2006, pp. 63-66.
Atrica Israel Ltd.
Clawson Stephen J
Vu Huy D
Zaretsky Howard
Zaretsky Patent Group PC
LandOfFree
Clock synchronization and distribution over an optical... 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 synchronization and distribution over an optical..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clock synchronization and distribution over an optical... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4154504