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EP 4 573 753 A1

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(43) Date of publication: 25.06.2025 Bulletin 2025/26 (21) Application number: 23855471.1 (22) Date of filing: 17.08.2023

(51) International Patent Classification (IPC):  H04N 19/61(2014.01) H04N 19/124(2014.01) H04N 19/70(2014.01) H04N 19/625(2014.01) H04N 19/132(2014.01) G06N 20/00(2019.01) (52) Cooperative Patent Classification (CPC): G06N 20/10; H04N 19/12; H04N 19/157; H04N 19/176 (86) International application number: PCT/US2023/030514 (87) International publication number: WO 2024/039806 (22.02.2024 Gazette 2024/08)

(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: 17.08.2022 US 202263398843 P (71) Applicant: Beijing Dajia Internet Information Technology Co., Ltd. Beijing 100085 (CN)

(72) Inventors: 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 (US) WANG, Xianglin San Diego, California 92122 (US) YU, Bing Beijing 100085 (CN) YAN, Ning San Diego, CA 92122 (US) XIU, Xiaoyu San Diego, CA 92122 (US) (74) Representative: Michalski Hüttermann & Partner Patentanwälte mbB  Kaistraße 16A 40221 Düsseldorf 40221 Düsseldorf (DE)