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(11)

EP 4 824 617 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24903034.7 (22) Date of filing: 12.12.2024

(51) International Patent Classification (IPC):  G04B 3/00(2006.01) G04B 5/02(2006.01) G04D 1/06(2006.01) G04B 3/12(2006.01) G04C 1/00(2006.01) G04D 7/00(2006.01) (52) Cooperative Patent Classification (CPC): G04D 7/009 (86) International application number: PCT/HU2024/050114 (87) International publication number: WO 2025/125843 (19.06.2025 Gazette 2025/25)

(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: GE KH MA MD TN (30) Priority: 12.12.2023 HU 2300438 12.12.2023 HU 2300439 (71) Applicant: Midea Contact Kft. 1141 Budapest (HU)	(72) Inventor: MÜLLER, Tibor Tamás 1141 Budapest (HU) (74) Representative: Danubia Patent & Law Office LLC  Bajcsy-Zsilinszky út 16 1051 Budapest 1051 Budapest (HU)