Fault protection in networks

Details Fault protection in networks Fault protection in networks

2008-07-15

2008-07-15

Tran, Dzung D (Department: 2613)

Optical communications

Fault recovery

Bypass inoperative element

C398S019000, C398S020000

Reexamination Certificate

active

09914523

ABSTRACT:
A network is maintained functional in the presence of a wide range of faults, including physical fiber cuts, transmission impairments creating signal quality degradation, and failure of equipment modules, for example, transceivers, using a common control and backup channel, either alone or in combination with fiber loopback protection or wavelength loopback protection, or fiber loopback protection or wavelength loopback protection alone. Systems constructed according to the invention require only a single transceiver per wavelength at each node that accesses that wavelength. The invention is equally applicable to type 1 nodes, which drop and add a single, predetermined wavelength, and to type 2 nodes which have the capability to drop and add any subset of the wavelengths employed in the network.

REFERENCES:
patent: 5442623 (1995-08-01), Wu
patent: 5760934 (1998-06-01), Sutter et al.
patent: 5982743 (1999-11-01), Kusano
patent: 6567194 (2003-05-01), Badr
patent: 6657952 (2003-12-01), Shiragaki et al.
patent: 6704877 (2004-03-01), Cline et al.
patent: 6915075 (2005-07-01), Oberg et al.
patent: 2002/0080445 (2002-06-01), Falkenstein et al.
patent: 2002/0114036 (2002-08-01), Ghani

Affiliated with

Also associated with

Rating

Fault protection in networks does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fault protection in networks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fault protection in networks will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3933276