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EP 3 679 722 A1

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(43) Date of publication: 15.07.2020 Bulletin 2020/29 (21) Application number: 18854605.5 (22) Date of filing: 05.09.2018

(51) International Patent Classification (IPC):  H04N 21/2743(2011.01) H04N 21/4728(2011.01) H04N 21/2187(2011.01) H04N 21/258(2011.01) H04N 5/232(2006.01) H04N 21/6587(2011.01) (86) International application number: PCT/US2018/049532 (87) International publication number: WO 2019/050938 (14.03.2019 Gazette 2019/11)

(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: KH MA MD TN (30) Priority: 05.09.2017 US 201762554564 P 28.12.2017 US 201715856105 28.12.2017 US 201715856109 28.12.2017 US 201715856108 04.09.2018 US 201816121087 04.09.2018 US 201816121081 04.09.2018 US 201816121060 (71) Applicant: Facebook, Inc. Menlo Park, CA 94025 (US)

(72) Inventor: CHEUNG, Vincent, Charles Menlo Park, CA 94025 (US) (74) Representative: Murgitroyd & Company  Murgitroyd House 165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB) (56) References cited: :