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EP 4 397 041 A1

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(43) Date of publication: 10.07.2024 Bulletin 2024/28 (21) Application number: 22865386.1 (22) Date of filing: 29.08.2022

(51) International Patent Classification (IPC):  H04N 19/18(2014.01) H04N 19/70(2014.01) H04N 19/60(2014.01) H04N 19/12(2014.01) (52) Cooperative Patent Classification (CPC): H04N 19/12; H04N 19/159; H04N 19/176; H04N 19/593; H04N 19/61 (86) International application number: PCT/US2022/041913 (87) International publication number: WO 2023/034225 (09.03.2023 Gazette 2023/10)

(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: 30.08.2021 US 202163238635 P (71) Applicant: Tencent America LLC Palo Alto, CA 94306 (US)	(72) Inventors: PERINGASSERY KRISHNAN, Madhu Palo Alto, California 94306 (US) ZHAO, Xin Palo Alto, California 94306 (US) LIU, Shan Palo Alto, California 94306 (US) (74) Representative: Gunzelmann, Rainer  Wuesthoff & Wuesthoff Patentanwälte und Rechtsanwalt PartG mbB Schweigerstraße 2 81541 München 81541 München (DE)