(19)

(11)

EP 1 483 643 A1

(12)

(43) Date of publication: 08.12.2004 Bulletin 2004/50 (21) Application number: 03716036.3 (22) Date of filing: 12.02.2003

(51) International Patent Classification (IPC)7: G06F 1/00 (86) International application number: PCT/US2003/004544 (87) International publication number: WO 2003/069476 (21.08.2003 Gazette 2003/34)

(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: 13.02.2002 US 356888 P (71) Applicant: Vasco Data Security Inc. Oakbrook Terrace, IL 60181 (US)	(72) Inventor: HOUTHOOFT, Mario B-9090 Melle (BE) (74) Representative: Calderbank, Thomas Roger  Mewburn Ellis LLPYork House23 Kingsway London WC2B 6HP London WC2B 6HP (GB)