(19)
(11) EP 1 476 989 A1

(12)

(43) Date of publication:
17.11.2004 Bulletin 2004/47

(21) Application number: 03713583.7

(22) Date of filing: 24.02.2003
(51) International Patent Classification (IPC)7H04L 12/437, G08B 13/194
(86) International application number:
PCT/US2003/005248
(87) International publication number:
WO 2003/073705 (04.09.2003 Gazette 2003/36)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR
Designated Extension States:
AL LT LV MK RO

(30) Priority: 22.02.2002 US 359028 P
22.02.2002 US 358914 P
29.11.2002 US 429962 P

(71) Applicant: CBL Acquisition LLC
Hopkington, MA 01748 (US)

(72) Inventor:
  • MORRISON, Brian, D.
    Hopkington, MA 01748 (US)

(74) Representative: Pilch, Adam John Michael 
D Young & Co120 Holborn
London EC1N 2DY
London EC1N 2DY (GB)

   


(54) OPTICAL RING ARCHITECTURE