(19)

(11)

EP 1 483 656 A1

(12)

(43) Date of publication: 08.12.2004 Bulletin 2004/50 (21) Application number: 02710925.5 (22) Date of filing: 31.01.2002

(51) International Patent Classification (IPC)7: G06F 3/033, G06K 11/20 (86) International application number: PCT/FI2002/000072 (87) International publication number: WO 2003/065192 (07.08.2003 Gazette 2003/32)

(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 (71) Applicant: Nokia Corporation 02150 Espoo (FI)	(72) Inventor: PIHLAJA, Pekka FIN-00530 Helsinki (FI) (74) Representative: Pursiainen, Timo Pekka  Tampereen Patenttitoimisto Oy,Hermiankatu 12B 33720 Tampere 33720 Tampere (FI)