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EP 4 256 123 A1

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(43) Date of publication: 11.10.2023 Bulletin 2023/41 (21) Application number: 21819451.2 (22) Date of filing: 25.11.2021

(51) International Patent Classification (IPC):  D06F 75/10(2006.01) D06F 75/26(2006.01) D06F 75/34(2006.01) (52) Cooperative Patent Classification (CPC): D06F 75/10; D06F 75/34; D06F 75/265 (86) International application number: PCT/EP2021/082968 (87) International publication number: WO 2022/117428 (09.06.2022 Gazette 2022/23)

(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: 04.12.2020 EP 20211770 (71) Applicant: Koninklijke Philips N.V. 5656 AG Eindhoven (NL)

(72) Inventors: LEE, Poh, Choon 5656 AE Eindhoven (NL) YE, Zhibin 5656 AE Eindhoven (NL) TAN, Yi, Ling, Priscilla 5656 AE Eindhoven (NL) PNG, Luck, Wee 5656 AE Eindhoven (NL) YUE TING, Chong 5656 AE Eindhoven (NL) RAMIREZ, Rico, Paolo 5656 AE Eindhoven (NL) SOO, Mun, Kong 5656 AE Eindhoven (NL) (74) Representative: Vollering, Stefanus Franciscus Maria  Philips Domestic Appliances IP Department High Tech Campus 42 5656 AE Eindhoven 5656 AE Eindhoven (NL)