(19)

(11)

EP 2 715 475 A1

(12)

(43) Date of publication: 09.04.2014 Bulletin 2014/15 (21) Application number: 12729727.3 (22) Date of filing: 31.05.2012

(51) International Patent Classification (IPC):  G06F 1/16(2006.01) (86) International application number: PCT/IB2012/052751 (87) International publication number: WO 2012/164526 (06.12.2012 Gazette 2012/49)

(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 (30) Priority: 03.06.2011 WO PCT/CN2011/000934 (71) Applicant: Koninklijke Philips N.V. 5656 AE Eindhoven (NL)	(72) Inventors: LEE, Kwok Lai NL-5656 AE Eindhoven (NL) LUI, Ka Man Raymond NL-5656 AE Eindhoven (NL) (74) Representative: Coops, Peter  Philips Intellectual Property & Standards P.O. Box 220 5600 AE Eindhoven 5600 AE Eindhoven (NL)