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EP 4 430 827 A1

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(43) Date of publication: 18.09.2024 Bulletin 2024/38 (21) Application number: 22893519.3 (22) Date of filing: 08.11.2022

(51) International Patent Classification (IPC):  H04N 19/60(2014.01) H04N 19/176(2014.01) H04N 19/70(2014.01) H04N 19/105(2014.01) H04N 19/18(2014.01) H04N 19/132(2014.01) H04N 19/124(2014.01) (52) Cooperative Patent Classification (CPC): H04N 19/105; H04N 19/18; H04N 19/60; H04N 19/70; H04N 19/132; H04N 19/176; H04N 19/13 (86) International application number: PCT/US2022/049264 (87) International publication number: WO 2023/086330 (19.05.2023 Gazette 2023/20)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 10.11.2021 US 202163277705 P 16.08.2022 WO PCT/US2022/040442 15.09.2022 WO PCT/US2022/043607 (71) Applicant: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD. Beijing 100085 (CN)

(72) Inventors: XIU, Xiaoyu San Diego, CA 92122 (US) YAN, Ning San Diego, CA 92122 (US) CHEN, Yi-wen San Diego, CA 92122 (US) KUO, Che-wei San Diego, CA 92122 (US) CHEN, Wei San Diego, CA 92122 (US) JHU, Hong-jheng San Diego, CA 92122 (US) WANG, Xianglin San Diego, CA 92122 (US) YU, Bing Beijing 100085 (CN) (74) Representative: Michalski Hüttermann & Partner Patentanwälte mbB  Kaistraße 16A 40221 Düsseldorf 40221 Düsseldorf (DE)