Optical communications – Diagnostic testing – Fault detection
Reexamination Certificate
2008-07-01
2008-07-01
Singh, Dalzid (Department: 2613)
Optical communications
Diagnostic testing
Fault detection
C398S031000, C398S033000, C398S034000, C398S067000, C398S068000
Reexamination Certificate
active
07394981
ABSTRACT:
An optical medium, whether inside or outside an internet/telecommunications backbone, is managed using a management signal at a wavelength which is distinct from wavelengths of service signals. A multiplexer multiplexes the management signal onto the optical medium, after which a demultiplexer demultiplexes the management signal for analysis. Performance of customer channels may be inferred from performance of the management signal.
REFERENCES:
patent: 4911515 (1990-03-01), So et al.
patent: 5113459 (1992-05-01), Grasso et al.
patent: 5296956 (1994-03-01), Fatehi et al.
patent: 5367394 (1994-11-01), Chuter et al.
patent: 5416623 (1995-05-01), Dawson et al.
patent: 5500756 (1996-03-01), Tsushima et al.
patent: 5513029 (1996-04-01), Roberts
patent: 5523868 (1996-06-01), Hawley
patent: 5757526 (1998-05-01), Shiragaki et al.
patent: 5793909 (1998-08-01), Leone et al.
patent: 5956165 (1999-09-01), Fee et al.
patent: 6005696 (1999-12-01), Joline et al.
patent: 6263136 (2001-07-01), Jennings et al.
patent: 6313932 (2001-11-01), Roberts et al.
patent: 6317535 (2001-11-01), Jennings et al.
patent: 6335810 (2002-01-01), Uehara
patent: 6366724 (2002-04-01), Jennings et al.
patent: 6433903 (2002-08-01), Barry et al.
patent: 6490063 (2002-12-01), Imajo
patent: 6498663 (2002-12-01), Farhan et al.
patent: 6621621 (2003-09-01), Jones et al.
patent: 2002/0041409 (2002-04-01), Laham et al.
patent: 2002/0138796 (2002-09-01), Jacob
patent: 2002/0176129 (2002-11-01), Dinu et al.
patent: 2003/0035171 (2003-02-01), Touma
patent: 2003/0067655 (2003-04-01), Pedersen et al.
patent: 2004/0228628 (2004-11-01), Richards et al.
patent: 0 777 345 (1997-06-01), None
patent: 0 964 487 (1999-12-01), None
patent: 1 039 670 (2000-09-01), None
patent: 2 374 758 (2002-10-01), None
patent: WO 02/21746 (2002-03-01), None
McLaughlin, M., “Optical Signaling and Control Opening the Door to New Ways of Building Networks,”Optical Networks Magazine, pp. 8, 10, 11, (Sep. 2001).
McGuire, A., “Management of Optical Transport Networks,”Electronics&Communication Engineering Journal, 11: 155-163 (Jun. 1999).
Hamilton Brook Smith & Reynolds P.C.
Singh Dalzid
LandOfFree
Optical communication management systems does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical communication management systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical communication management systems will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2767606