(19)
(11) EP 1 782 562 A2

(12)

(43) Date of publication:
09.05.2007 Bulletin 2007/19

(21) Application number: 04778329.5

(22) Date of filing: 15.07.2004
(51) International Patent Classification (IPC): 
H04J 14/02(2006.01)
(86) International application number:
PCT/US2004/022755
(87) International publication number:
WO 2006/019369 (23.02.2006 Gazette 2006/08)
(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 PL PT RO SE SI SK TR
Designated Extension States:
AL HR LT LV MK

(71) Applicant: ESSEX CORPORATION
Columbia, Maryland 21046-1891 (US)

(72) Inventor:
  • TURPIN, Terry, M.
    Columbia, MD 21046 (US)

(74) Representative: Parkinson, Neil Scott et al
Marks & Clerk Sussex House 83-85 Mosley Street
Manchester M2 3LG
Manchester M2 3LG (GB)

   


(54) A PRIVATE AND SECURE OPTICAL COMMUNICATION SYSTEM USING AN OPTICAL TAPPED DELAY LINE