(19)

(11)

EP 4 256 544 A1

(12)

(43) Date of publication: 11.10.2023 Bulletin 2023/41 (21) Application number: 21835485.0 (22) Date of filing: 01.12.2021

(51) International Patent Classification (IPC):  G08C 17/02(2006.01) H05B 47/19(2020.01) H02J 50/80(2016.01) (52) Cooperative Patent Classification (CPC): G08C 17/02; H05B 47/19 (86) International application number: PCT/US2021/061331 (87) International publication number: WO 2022/119879 (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: 01.12.2020 US 202063119682 P (71) Applicant: Lutron Technology Company LLC Coopersburg, PA 18036 (US)	(72) Inventors: CHRISTENSEN, Graham L. Coopersburg, Pennsylvania 18036 (US) GUELLNITZ, Joseph C. Coopersburg, Pennsylvania 18036 (US) SAPTHASAYEE, Rangasayee Coopersburg, Pennsylvania 18036 (US) STEINER, James P. Coopersburg, Pennsylvania 18036 (US) (74) Representative: AWA Sweden AB  Box 5117 200 71 Malmö 200 71 Malmö (SE)