Optical communications – Diagnostic testing – Determination of communication parameter
Reexamination Certificate
2011-06-07
2011-06-07
Liu, Li (Department: 2613)
Optical communications
Diagnostic testing
Determination of communication parameter
C398S015000, C398S017000, C398S020000, C398S025000, C398S032000, C398S033000, C398S038000
Reexamination Certificate
active
07957643
ABSTRACT:
A method and apparatus for controlling the power level of an optical signal includes detecting the loss of a supervisory signal counter-propagating in an optical fiber.
REFERENCES:
patent: 4833668 (1989-05-01), Rowley et al.
patent: 4994675 (1991-02-01), Levin et al.
patent: 5099349 (1992-03-01), Yoshida et al.
patent: 5136410 (1992-08-01), Heiling et al.
patent: 5500756 (1996-03-01), Tsushima et al.
patent: 5535037 (1996-07-01), Yoneyama
patent: 5923453 (1999-07-01), Yoneyama
patent: 5986782 (1999-11-01), Alexander et al.
patent: 6304347 (2001-10-01), Beine et al.
patent: 6317255 (2001-11-01), Fatehi et al.
patent: 6359708 (2002-03-01), Goel et al.
patent: 6359713 (2002-03-01), DeCusatis et al.
patent: 6423963 (2002-07-01), Wu
patent: 6483616 (2002-11-01), Maddocks et al.
patent: 6504630 (2003-01-01), Czarnocha et al.
patent: 6583899 (2003-06-01), Casanova et al.
patent: 2003/0020994 (2003-01-01), Boden
patent: 2003/0081295 (2003-05-01), Kamura
patent: 2004/0052524 (2004-03-01), Arnold
patent: 0 853 394 (1998-07-01), None
U.S. Appl. No. 09/205,412, filed Dec. 4, 1998, Czamocha et al. inventors, entitled Automatic Power Shut-Down Arrangement for Optical Line Systems.
Feldman Robert D.
Greenberg Janet M.
Radovanovic Mile
Thangavelu Singanallur R.
Thompson William A.
Alcatel-Lucent USA Inc.
Liu Li
Wall & Tong LLP
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