(19)

(11)

EP 4 374 352 A1

(12)

(43) Date of publication: 29.05.2024 Bulletin 2024/22 (21) Application number: 22846548.0 (22) Date of filing: 20.07.2022

(51) International Patent Classification (IPC):  G08B 21/02(2006.01) G08B 25/10(2006.01) G08B 1/08(2006.01) (52) Cooperative Patent Classification (CPC): G08B 27/001; G08B 21/0453; G08B 21/0446 (86) International application number: PCT/US2022/037681 (87) International publication number: WO 2023/003935 (26.01.2023 Gazette 2023/04)

(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: 23.07.2021 US 202117384331 (71) Applicant: Nextivity, Inc. San Diego CA 92127-1889 (US)	(72) Inventor: LOTTER, Michiel, Petrus San Diego, California 92127-1889 (US) (74) Representative: Slingsby Partners LLP  1 Kingsway London WC2B 6AN London WC2B 6AN (GB)