Multiplex communications – Communication techniques for information carried in plural... – Adaptive
Reexamination Certificate
2004-10-01
2009-08-04
Ngo, Ricky (Department: 2416)
Multiplex communications
Communication techniques for information carried in plural...
Adaptive
C370S442000, C370S512000, C370S516000, C398S102000
Reexamination Certificate
active
07570660
ABSTRACT:
A network element for incorporating in nodes of a network that is a transparent, subwavelength networks. The element is configurable and adapted to support an arbitrary protocol, with protocol-specific monitoring features as well as protocol-independent add/drop capability. An arrangement that allows transmission of client signals with higher clock fidelity is achieved by developing a phases offset measure at an ingress node, communicating it to the egress node, and recovering the client's clock from the received data and from the received phase-offset information. The ability to recover the client's clock with high fidelity is enhanced by modified pointer processing in intermediate nodes of the network that the client's signal traverses. The pointer processing is modified to inject positive and negative justifications in excess of what is minimally necessary to insure proper transmission over a network that employs a protocol involving framing layer frames embedded in communication layer frames. Illustratively, the network protocol is an extended G.709 Digital Wrapper protocol, arranged to employ frames of 15240 columns by four rows.
REFERENCES:
patent: 7006525 (2006-02-01), Jha
patent: 7099584 (2006-08-01), Narvaez et al.
patent: 2002/0191640 (2002-12-01), Haymes et al.
patent: 2003/0048813 (2003-03-01), Lahav et al.
patent: 2003/0112833 (2003-06-01), Kamiya
patent: 2005/0058187 (2005-03-01), Groen et al.
patent: 2005/0286521 (2005-12-01), Chiang et al.
Michael J. Klein and Ralph Urbansky, “Network Synchronization—A Challenge for SDH/SONET?”, Sep. 1993, IEEE Communications Magazine, pp. 42-50.
Fung Eddie
Nociolo Lawrence J.
Nuss Martin
Surek Steven A.
Woodward Ted K.
Bernard Christopher L.
Brown Tyler S.
CIENA Corporation
Clements Bernard PLLC
Ngo Ricky
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