(19)

(11)

EP 2 697 736 A1

(12)

(43) Date of publication: 19.02.2014 Bulletin 2014/08 (21) Application number: 11863701.6 (22) Date of filing: 15.04.2011

(51) International Patent Classification (IPC):  G06K 7/10(2006.01) G06K 17/00(2006.01) (86) International application number: PCT/IB2011/051651 (87) International publication number: WO 2012/140476 (18.10.2012 Gazette 2012/42)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (71) Applicant: Nokia Corporation 02150 Espoo (FI)	(72) Inventor: KARTTAAVI, Timo Petteri FIN-02170 Espoo (FI) (74) Representative: Jaatinen, Jussi Imari  Nokia Corporation Intellectual Property Department Keilalahdentie 4 02150 Espoo 02150 Espoo (FI)