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(11)

EP 3 516 492 A1

(12)

(43) Date of publication: 31.07.2019 Bulletin 2019/31 (21) Application number: 17925303.4 (22) Date of filing: 15.09.2017

(51) International Patent Classification (IPC):  G06F 3/0484(2013.01) G06F 3/01(2006.01) (86) International application number: PCT/KR2017/010136 (87) International publication number: WO 2019/054534 (21.03.2019 Gazette 2019/12)

(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 Designated Validation States: MA MD (71) Applicant: Samsung Electronics Co., Ltd. Suwon-si, Gyeonggi-do 16677 (KR)	(72) Inventors: WANG, Feifei Tianjin 300385 (CN) RUAN, Minglei Tianjin 300385 (CN) TIAN, Hui Tianjin 300385 (CN) (74) Representative: Appleyard Lees IP LLP  15 Clare Road Halifax HX1 2HY Halifax HX1 2HY (GB)