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EP 4 584 966 A1

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(43) Date of publication: 16.07.2025 Bulletin 2025/29 (21) Application number: 23863876.1 (22) Date of filing: 11.09.2023

(51) International Patent Classification (IPC):  H04N 19/60(2014.01) H04N 19/132(2014.01) H04N 19/157(2014.01) H04N 19/124(2014.01) H04N 19/176(2014.01) (52) Cooperative Patent Classification (CPC): H04N 19/132; H04N 19/176; H04N 19/157; H04N 19/12; H04N 19/119; H04N 19/136; H04N 19/18; H04N 19/44; H04N 19/48; H04N 19/593 (86) International application number: PCT/US2023/032445 (87) International publication number: WO 2024/054689 (14.03.2024 Gazette 2024/11)

(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 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: 10.09.2022 US 202263405431 P (71) Applicant: Beijing Dajia Internet Information Technology Co., Ltd. Beijing 100085 (CN)

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