System and method using differential loop gain for fault...

Optical communications – Optical repeater system – Monitoring

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C398S033000, C398S016000, C398S018000, C398S020000, C398S181000, C356S073100, C370S241000, C370S242000, C370S243000

Reexamination Certificate

active

07809279

ABSTRACT:
A system and method using differential loop gain for fault analysis in line monitoring equipment. Differential loop gain data is calculated from loop gain data, and fault analysis is conducted using differential loop gain data, e.g. by comparing the differential loop gain data to predefined fault signatures.

REFERENCES:
patent: 5926263 (1999-07-01), Lynch et al.
patent: 5969833 (1999-10-01), Jensen
patent: 6028684 (2000-02-01), Kidorf
patent: 6301036 (2001-10-01), Spencer
patent: 6414775 (2002-07-01), Pedersen
patent: 6708004 (2004-03-01), Homsey
patent: 6842586 (2005-01-01), Neubelt et al.
patent: 7009693 (2006-03-01), Takashina
patent: 7035545 (2006-04-01), Meli et al.
patent: 7388657 (2008-06-01), Abbott
patent: 2004/0047295 (2004-03-01), Morreale
patent: 2004/0047629 (2004-03-01), Evangelides, Jr. et al.
patent: 2004/0095569 (2004-05-01), Kan
patent: 2004/0096214 (2004-05-01), Morreale et al.
patent: 2007/0041006 (2007-02-01), Abbott
patent: 2009/0190930 (2009-07-01), Von Der Weid
patent: 1372272 (2003-12-01), None
patent: 2004056017 (2004-07-01), None
International Search Report and Written Opinion dated Oct. 6, 2008 issued in related International Patent Application No. PCT/US08/71395.
European Search Report dated Dec. 5, 2006 received in European Patent Application Serial No. 06119183.9 (6 pages).
Cornwell, et al., “In-service Line Performance Monitoring with COTDR” Red Sky Systems, Poster We 15.2 article. (3 pages), 1993.
USPTO Office Action mailed Aug. 27, 2007 issued in U.S. Appl. No. 11/209,181 (11 pages).
European Office Action mailed on Sep. 13, 2007 in connection with corresponding European Patent Application No. 06119183.9.
European Office Action dated Feb. 8, 2010 issued in related European Patent Application No. 06119183.9-2415.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

System and method using differential loop gain for fault... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method using differential loop gain for fault..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method using differential loop gain for fault... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4238244

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.