(19)

(11)

EP 4 214 546 A1

(12)

(43) Date of publication: 26.07.2023 Bulletin 2023/30 (21) Application number: 21870074.8 (22) Date of filing: 14.09.2021

(51) International Patent Classification (IPC):  G01S 13/76(2006.01) G01S 13/00(2006.01) G01S 5/06(2006.01) G01S 3/46(2006.01) (52) Cooperative Patent Classification (CPC): G01S 3/043; G01S 5/12; G01S 3/12; G01S 3/50; G01S 2205/01; G01S 3/10; G01S 13/765; G01S 13/876 (86) International application number: PCT/US2021/050322 (87) International publication number: WO 2022/060745 (24.03.2022 Gazette 2022/12)

(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: 15.09.2020 US 202063078494 P 22.03.2021 US 202117208714 (71) Applicant: Radio Systems Corporation Knoxville, TN 37932 (US)	(72) Inventors: SELTZER, Richard Knoxville, Tennessee 37932 (US) GIVEN, Grant Knoxville, Tennessee 37932 (US) MYERS, Eric Knoxville, Tennessee 37932 (US) (74) Representative: Mewburn Ellis LLP  Aurora Building Counterslip Bristol BS1 6BX Bristol BS1 6BX (GB)