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(11)

EP 4 384 992 A1

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(43) Date of publication: 19.06.2024 Bulletin 2024/25 (21) Application number: 22879366.7 (22) Date of filing: 11.10.2022

(51) International Patent Classification (IPC):  G07C 5/00(2006.01) G07C 5/08(2006.01) (52) Cooperative Patent Classification (CPC): H04L 67/12; H04L 67/10; H04W 4/44; G06F 21/554; H04W 12/121; H04L 63/1425 (86) International application number: PCT/US2022/046292 (87) International publication number: WO 2023/059938 (13.04.2023 Gazette 2023/15)

(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: 08.10.2021 US 202163253950 P (71) Applicant: Sonatus, Inc. Sunnyvale, CA 94089 (US)

(72) Inventors: FANG, Yu Palo Alto, California 94306 (US) LING, Andrew Daly City, California 94015 (US) VALENZUELA, Felipe Andres Valdes Mountain View, California 94040 (US) ZONG, Xuanran Sunnyvale, California 94087 (US) DHANKHAR, Sudhir Ramphal Dublin, California 94568 (US) CHAI, Fangming San Jose, California 95132 (US) (74) Representative: Marks & Clerk LLP  15 Fetter Lane London EC4A 1BW London EC4A 1BW (GB)