(19)

(11)

EP 4 176 383 A2

(12)

(88) Date of publication A3: 10.02.2022 (43) Date of publication: 10.05.2023 Bulletin 2023/19 (21) Application number: 21743580.9 (22) Date of filing: 01.07.2021

(51) International Patent Classification (IPC):  G06K 19/07(2006.01) G06K 19/073(2006.01) G06K 19/077(2006.01) (52) Cooperative Patent Classification (CPC): G06K 19/0723; G06K 19/0772; G06K 19/0739 (86) International application number: PCT/IB2021/055901 (87) International publication number: WO 2022/003613 (06.01.2022 Gazette 2022/01)

(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: 02.07.2020 SE 2050830 (71) Applicant: Digital Tags Finland Oy 33100 Tampere (FI)	(72) Inventor: HUHTASALO, Lauri 33200 Tampere (FI) (74) Representative: Papula Oy  P.O. Box 981 00101 Helsinki 00101 Helsinki (FI)