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(11)

EP 4 399 866 A1

(12)

(43) Date of publication: 17.07.2024 Bulletin 2024/29 (21) Application number: 21823172.8 (22) Date of filing: 12.09.2021

(51) International Patent Classification (IPC):  H04N 7/14(2006.01) (52) Cooperative Patent Classification (CPC): H04N 7/147 (86) International application number: PCT/CN2021/117874 (87) International publication number: WO 2023/035256 (16.03.2023 Gazette 2023/11)

(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 (71) Applicant: Zoom Video Communications, Inc. San Jose, CA 95113 (US)

(72) Inventors: COLLINS, Dean San Jose, California 95113 (US) BOOTH, Simon San Jose, California 95113 (US) HOBBS, Corey San Jose, California 95113 (US) BHAGAVATHA, Rag San Jose, California 95113 (US) HENDRICKSON, Andy San Jose, California 95113 (US) JANAKIRAMAN, Arun San Jose, California 95113 (US) ZHOU, Shengwu San Jose, California 95113 (US) ZHOU, Adli Hangzhou, Zhejiang 310012 (CN) (74) Representative: Slingsby Partners LLP  1 Kingsway London WC2B 6AN London WC2B 6AN (GB)