(19)

(11)

EP 2 810 160 A1

(12)

(43) Date of publication: 10.12.2014 Bulletin 2014/50 (21) Application number: 12867194.8 (22) Date of filing: 03.02.2012

(51) International Patent Classification (IPC):  G06F 9/44(2006.01) (86) International application number: PCT/CN2012/000142 (87) International publication number: WO 2013/113135 (08.08.2013 Gazette 2013/32)

(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 Designated Extension States: BA ME (71) Applicant: Google Inc. Mountain View, CA 94043 (US)	(72) Inventors: WU, Genqing Beijing 100084 (CN) FENG, Hanping Beijing 100029 (CN) (74) Representative: Lam, Alvin et al RGC Jenkins & Co. 26 Caxton Street London SW1H 0RJ London SW1H 0RJ (GB)