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(11)

EP 1 295 451 A1

(12)

(43) Date of publication: 26.03.2003 Bulletin 2003/13 (21) Application number: 00972526.8 (22) Date of filing: 10.11.2000

(51) International Patent Classification (IPC)7: H04L 27/26 (86) International application number: PCT/CH0000/601 (87) International publication number: WO 0109/9365 (27.12.2001 Gazette 2001/52)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 23.06.2000 WO PCT/CH00/00342 (71) Applicant: Cybersoft Corporation 9491 Ruggell (LI)	(72) Inventor: LETUNOV, Leonid 9494 Schaan (LI) (74) Representative: Liebetanz, Michael, Dipl.-Phys. et al Isler & Pedrazzini AG,Patentanwälte,Postfach 6940 8023 Zürich 8023 Zürich (CH)