Optical communications – Fault recovery – Bypass inoperative element
Reexamination Certificate
2006-05-02
2006-05-02
Sedighian, M. R. (Department: 2633)
Optical communications
Fault recovery
Bypass inoperative element
C398S003000, C398S004000, C370S223000
Reexamination Certificate
active
07039312
ABSTRACT:
The present invention is directed toward a distributed intelligence fiber-optic communication network in which node control processors (NCPs) associated with each network element periodically transmit identification and status information to the other NCPs in the network. Various faults in the network can thus be readily identified, and appropriate tasks for modifying the network in response to the fault (such as rerouting around a defective network element) can be carried out. Further, information continues to be distributed among the NCPs even if a break occurs in a segment of fiber in the network.
REFERENCES:
patent: 4561088 (1985-12-01), Champlin et al.
patent: 4696001 (1987-09-01), Gagliardi et al.
patent: 5212577 (1993-05-01), Nakamura et al.
patent: 5440418 (1995-08-01), Ishimura et al.
patent: 5519705 (1996-05-01), Fukutomi
patent: 5532864 (1996-07-01), Alexander et al.
patent: 5583990 (1996-12-01), Birrittella et al.
patent: 5600637 (1997-02-01), Kikuta
patent: 5699177 (1997-12-01), Yamamoto
patent: 5815295 (1998-09-01), Darcie et al.
patent: 5914794 (1999-06-01), Fee et al.
patent: 5914798 (1999-06-01), Liu
patent: 5930014 (1999-07-01), Yamamoto
patent: 5978115 (1999-11-01), Condict et al.
patent: 6084892 (2000-07-01), Benash et al.
patent: WO9705725 (1997-02-01), None
Tada, Y., et al., “OA&M Framework for Multiwavelength Photonic Transport Networks”, IEEE Journal on Selected Areas in Communications, vol. 14, No. 5, Jun. 1996, pp. 914-921.
Bischoff, M. et al., “Operation and Maintenance for An All-Optical Transport Network”, IEEE Communications Magazine, vol. 34, No. 11, Nov. 1996, pp. 136-142.
Ramaswami, R., et al., “Distributed Network Control for Wavelength Routed Optical Networks”, Proceedings of IEE Infocom 1996. Conference on Computer Communications, Fifteenth Annual Joint Conference of the IEEE Computer and Communications Societies. Networking the Next Generation San Francisco, vol. 1, No. CONF. Mar. 15, 1996, pp. 138-147, Institute of Electrical and Electronics Engineers, right-hand column, lines 16-18, p. 139.
Tada et al., “OA&M Framework for Multiwavelength Photonic Transport Networks,” IEEE Journal of Selected Areas in Communications, vol. 14, No. 5, pp. 914-922 (Jun. 1996).
Derr et al., “An Optical Infrastructure for Future Telecommunications Networks,” IEEE Communications Magazine, pp. 84-88 (Nov. 1995).
Kaminow et al., “A Wideband All-Optical WDM Network,” IEEE J. Select Areas Communications, vol. 14, No. 5, pp. 780-799 (Jun.1996).
Bischoff et al., “Operation and Maintenance for an All-Optical Transport Network,” IEEE Communications Magazine, pp. 136-142 (Nov. 1996).
Hill et al., “A Transport Network Layer Based on Optical Network Elements,” IEEE Lightwave Technology, pp. 667-679 (May/Jun. 1993).
Chen et al., “In-Service Supervisory EDFA-Repeated Wavelength Division Multiplexing Transmission System,” IEEE Photonics Technology Letters, vol. 7, No. 8, pp. 923-925 (Aug. 1995).
Green, “Fiber Optic Networks,” pp.344-345, Prentice Hall (1993).
Matsuoka et al., “Supervisory Signal Transmission Methods for Optical Amplifier Repeater Systems,” GLOBECOM '90, vol. 3, pp. 1846-1850 (Dec. 2-5, 1990).
Acampora et al., “An Overview of Lightwave Packet Networks,” IEEE Network Magazine vol. 3, No. 1, pp. 29-41 (Jan. 1989).
Hedrick, “Routing Information Protocol,” Network Working Group, Request for Comments 1058, (Jun. 1988).
Civil Docket Sheet for Case #: 2:05-cv-14LED, pp. 1 through 12.
Nortel Networks Inc., Nortel Networks Limited, and Nortel Networks Corporation's Preliminary Invalidity Contentions served Jun. 14, 2005, pp. 1 through 65.
Ciena's Third Amended Complaint, pp. 1 through 17.
Memorandum and Order dated Sep. 1, 2005, pp. 1 through 6.
Condict Keith A.
Harmon Stephen R.
Jones Wesley R.
Peters-Rodbell Michael B.
Ciena Corp
Merek & Blackmon & Voorhees, LLC
Sedighian M. R.
LandOfFree
Distributed intelligence wavelength division multiplexed... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Distributed intelligence wavelength division multiplexed..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Distributed intelligence wavelength division multiplexed... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3648187