BOPI 05 BR / 2025 REPERTOIRE NUMERIQUE 24 (11) 21903 Consulter le mémoire (51) B41C 1/02 (2023.01); B41N 1/00 (2023.01); B42D 25/305 (2023.01); B42D 25/324 (2023.01); G06K 19/06 (2023.01); G07D 7/206 (2023.01) (21) 1202400227 - PCT/EP2022/086372 (22) 16/12/2022 (30) EP n° 21216149.1 du 20/12/2021 (54) Security element, corresponding engraved intaglio printing plate, and methods and devices for producing, decoding and authenticating security marking of said security element. (72) DECOUX, Eric (CH); DUCA, Nicola (CH) et LEFEBVRE, Olivier (CH) (73) SICPA HOLDING SA, Avenue de Florissant 41, 1008 PRILLY (CH) (74) Cabinet NICO HALLE & CO. LAW FIRM, 1st Floor SHALOM Building, Ancienne Route, Opposite Pharmacie du Pont/Express Union, B.P. 4876, DOUALA (CM). (57) The invention relates to a security marking printed via intaglio process, corresponding engraved intaglio printing plate, and methods and devices for producing, encoding/decoding and authenticating said security marking. The security marking comprising multitone 2D intaglio patterns of intaglio modules containing encoded data according to specific encoding symbols, the decoding of which, together with measured tone values for tiny shifts around their positions at decoding stage on a digital image of said intaglio patterns in correlation with said symbols, provides a robust and precise estimation of a register error between modules of distinct tones, thus allowing to easily detect any fake marking obtained via offset printing, even with a smartphone. Fig. 2C ________________________________________ (11) 21904 Consulter le mémoire (51) B03C 11/00 (2023.01); B09B 101/00 (2023.01); B09B 3/50 (2023.01) (21) 1202400240 - PCT/IB2022/060909 (22) 14/11/2022 (30) RU n° RU2021140063 du 30/12/2021 (54) Method for destroying organic waste with a low water content.
RkJQdWJsaXNoZXIy MTM1NDc3MA==