(19)

(11)

EP 4 140 092 A1

(12)

(43) Date of publication: 01.03.2023 Bulletin 2023/09 (21) Application number: 21751864.6 (22) Date of filing: 20.04.2021

(51) International Patent Classification (IPC):  H04L 9/08(2006.01) G11C 16/20(2006.01) G06F 21/44(2013.01) G06Q 30/00(2006.01) (52) Cooperative Patent Classification (CPC): H04L 9/0866; G06Q 30/0185; G11C 16/20; G06F 21/44; G06F 21/73 (86) International application number: PCT/IB2021/053261 (87) International publication number: WO 2021/214663 (28.10.2021 Gazette 2021/43)

(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: 20.04.2020 US 202063012305 P (71) Applicant: Sandgrain B.V. 2628 CT Delft (NL)	(72) Inventors: DOUMEN, Jeroen Mathias 2628CT Delft (NL) JUFFERMANS, Casparus Anthonius Henricus 2628CT Delft (NL) HOOIJMANS, Pieter Werner 2628CT Delft (NL)