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(11)

EP 3 973 376 A1

(12)

(43) Date of publication: 30.03.2022 Bulletin 2022/13 (21) Application number: 20742856.6 (22) Date of filing: 19.05.2020

(51) International Patent Classification (IPC):  G06F 3/042(2006.01) G06F 3/16(2006.01) G06F 3/14(2006.01) (52) Cooperative Patent Classification (CPC): G06F 3/0428; G06F 3/1423; G06F 3/165; H04N 9/3147; H04N 9/3194 (86) International application number: PCT/IB2020/054720 (87) International publication number: WO 2020/234757 (26.11.2020 Gazette 2020/48)

(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: 21.05.2019 IT 201900007040 (71) Applicant: Centro di Ricerca, Sviluppo E Studi Superiori in Sardegna CRS4 Srl Uniominale 09050 Pula (CA) (IT)	(72) Inventors: PADDEU, Gavino 09131 Cagliari (IT) IACOLINA, Samuel Aldo 09045 Qartu S. Elena (IT) SORO, Alessandro Bardon, Queensland I-4065 (AU) DERIU, Massimo 09012 Capoterra (CA) (IT) CASARI, Carlino 09012 Capoterra (CA) (IT) ZANARINI, Pietro 40129 BOLOGNA (IT) (74) Representative: Metroconsult Srl  Foro Bonaparte 51 20121 Milano 20121 Milano (IT)