(19)

(11)

EP 4 118 396 A1

(12)

(43) Date of publication: 18.01.2023 Bulletin 2023/03 (21) Application number: 20879789.4 (22) Date of filing: 20.10.2020

(51) International Patent Classification (IPC):  G01C 21/20(2006.01) (52) Cooperative Patent Classification (CPC): G01C 21/206; H04W 4/029; H04W 4/35; H04W 4/33; G01S 5/02585; G01S 2205/09 (86) International application number: PCT/US2020/056405 (87) International publication number: WO 2021/080933 (29.04.2021 Gazette 2021/17)

(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: 21.10.2019 US 201916658951 (71) Applicant: Position Imaging, Inc. Portsmouth, NH 03801 (US)	(72) Inventor: HILL, Edward, L. Conway, New Hampshire 03818 (US) (74) Representative: Tomkins & Co  5 Dartmouth Road Dublin 6, D06 F9C7 Dublin 6, D06 F9C7 (IE)