EP 1782562 A2 20070509 - A PRIVATE AND SECURE OPTICAL COMMUNICATION SYSTEM USING AN OPTICAL TAPPED DELAY LINE
Title (en)
A PRIVATE AND SECURE OPTICAL COMMUNICATION SYSTEM USING AN OPTICAL TAPPED DELAY LINE
Title (de)
PRIVATES UND SICHERES OPTISCHES KOMMUNIKATIONSSYSTEM MIT EINER OPTISCH ABGEGRIFFENEN VERZÖGERUNGSLEITUNG
Title (fr)
SYSTÈME PRIVÉ ET SÉCURISÉ DE COMMUNICATIONS OPTIQUES UTILISANT UNE LIGNE À RETARD A PIQUAGE OPTIQUE
Publication
Application
Priority
US 2004022755 W 20040715
Abstract (en)
[origin: WO2006019369A2] A method and apparatus for secure transmission of an information-containing optical signal. An optical signal is divided into a first plurality of sub-bands. Each of the sub-bands is modified to encrypt the information contained in the optical signal. The modified sub-bands are combined into a combined optical signal. The combined optical signal is divided into a second plurality of sub-bands. Each of the second plurality of sub-bands is modified to decrypt the previously encrypted information contained in the optical signal.
IPC 8 full level
H04B 10/85 (2013.01); H04K 1/04 (2006.01); G02B 6/28 (2006.01); G02B 6/293 (2006.01)
CPC (source: EP)
H04B 10/85 (2013.01); H04K 1/04 (2013.01); G02B 6/2861 (2013.01); G02B 6/29358 (2013.01)
Designated contracting state (EPC)
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 state (EPC)
AL HR LT LV MK
DOCDB simple family (publication)
WO 2006019369 A2 20060223; WO 2006019369 A3 20090416; CA 2573981 A1 20060223; EP 1782562 A2 20070509; EP 1782562 A4 20110914; JP 2008507196 A 20080306
DOCDB simple family (application)
US 2004022755 W 20040715; CA 2573981 A 20040715; EP 04778329 A 20040715; JP 2007521439 A 20040715