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(11)

EP 4 085 322 A1

(12)

(43) Date of publication: 09.11.2022 Bulletin 2022/45 (21) Application number: 20842914.2 (22) Date of filing: 17.12.2020

(51) International Patent Classification (IPC):  G06F 3/0484(2022.01) H04W 4/21(2018.01) H04L 12/58(2006.01) (52) Cooperative Patent Classification (CPC): H04L 51/10; H04W 4/21; H04L 51/52 (86) International application number: PCT/US2020/070923 (87) International publication number: WO 2021/138630 (08.07.2021 Gazette 2021/27)

(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: 31.12.2019 US 201916732025 31.12.2019 US 201916732040 31.12.2019 US 201916732051 31.12.2019 US 201916732001 (71) Applicant: Snap Inc. Santa Monica, CA 90405 (US)

(72) Inventors: LUO, Jean Santa Monica, California 90405 (US) GRYTSIUK, Oleksandr Santa Monica, California 90405 (US) GOLUB, Ivan Santa Monica, California 90405 (US) SOKOLOV, Mykhailo Santa Monica, California 90405 (US) MOURKOGIANNIS, Celia Nicole Santa Monica, California 90405 (US) LIU, Chenguang Santa Monica, California 90405 (US) GORDIIENKO, Oleksii Santa Monica, California 90405 (US) WANG, Yichuan Santa Monica, California 90405 (US) WARD, Shannon Santa Monica, California 90405 (US) (74) Representative: Kramer, Dani et al Mathys & Squire The Shard 32 London Bridge Street London SE1 9SG London SE1 9SG (GB)