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(11)

EP 4 497 225 A1

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(43) Date of publication: 29.01.2025 Bulletin 2025/05 (21) Application number: 23736825.3 (22) Date of filing: 06.06.2023

(51) International Patent Classification (IPC):  H04L 9/40(2022.01) G06F 21/10(2013.01) H04L 9/00(2022.01) (52) Cooperative Patent Classification (CPC): H04L 9/50; H04L 63/101; H04L 63/107; H04L 63/108; G06F 21/1015; G06F 21/1084; G06F 21/1088; H04L 63/0428 (86) International application number: PCT/IB2023/055810 (87) International publication number: WO 2023/248034 (28.12.2023 Gazette 2023/52)

(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: 22.06.2022 US 202263366781 P 22.03.2023 US 202318188172 (71) Applicant: Sony Group Corporation Tokyo 108-0075 (JP)	(72) Inventors: TOGAME, Takashi BANGALORE 560103 (IN) MURAO, Sadayoshi BANGALORE 560103 (IN) PINGILI, Srinivasa BANGALORE 560103 (IN) (74) Representative: D Young & Co LLP  3 Noble Street London EC2V 7BQ London EC2V 7BQ (GB)