(19)
(11) EP 1 709 757 A2

(12)

(88) Date of publication A3:
03.08.2006

(43) Date of publication:
11.10.2006 Bulletin 2006/41

(21) Application number: 05705213.6

(22) Date of filing: 07.01.2005
(51) International Patent Classification (IPC): 
H04B 10/08(2006.01)
H04B 10/17(2006.01)
G01N 21/01(2006.01)
H04B 17/02(2006.01)
H04B 10/24(2006.01)
(86) International application number:
PCT/US2005/000448
(87) International publication number:
WO 2005/074660 (18.08.2005 Gazette 2005/33)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR LV MK YU

(30) Priority: 07.01.2004 US 535135 P

(71) Applicants:
  • Red Sky Systems, Inc.
    South Plainfield, NJ 07080 (US)
  • Edwards, Henry Owen
    Mold Flintshire CH7 1GX (GB)
  • Ahern, Glenn John
    Englishtown, NJ 07726 (US)

(72) Inventors:
  • CORNWELL, William David
    Chester CH2 3BG (GB)
  • EVANGELIDES, JR., Stephen G.
    Red Bank, NJ 07701 (US)
  • NAGEL, Jonathan A.
    Brooklyn, NY 11031 (US)
  • TAYLOR, Nigel Hunt
    Chester CH2 1QR (GB)
  • SMITH, Stephen Arthur Hughes
    Chester CH2 1EP (GB)

(74) Representative: Seuss, Thomas et al
Albrecht, Lüke & Jungblut Patentanwälte Gelfertstraße 56
14195 Berlin
14195 Berlin (DE)

   


(54) METHOD AND APPARATUS FOR IN-SERVICE MONITORING OF A REGIONAL UNDERSEA OPTICAL TRANSMISSION SYSTEM USING COTDR