(19)

(11)

EP 2 820 567 A2

(12)

(88) Date of publication A3: 21.11.2013 (43) Date of publication: 07.01.2015 Bulletin 2015/02 (21) Application number: 13710195.2 (22) Date of filing: 27.02.2013

(51) International Patent Classification (IPC):  G06F 17/27(2006.01) (86) International application number: PCT/US2013/028040 (87) International publication number: WO 2013/130623 (06.09.2013 Gazette 2013/36)

(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 (30) Priority: 27.02.2012 US 201261603483 P (71) Applicants: Robert Bosch GmbH 70442 Stuttgart (DE) Liu, Fei Palo Alto, CA 94306 (US) Weng, Fuliang Mountain View, CA 94040 (US)	(72) Inventors: LIU, Fei Palo Alto, CA 94306 (US) WENG, Fuliang Mountain View, CA 94040 (US) (74) Representative: Isarpatent  Patent- und Rechtsanwälte Friedrichstrasse 31 80801 München 80801 München (DE)