(19)

(11)

EP 4 259 522 A1

(12)

(43) Date of publication: 18.10.2023 Bulletin 2023/42 (21) Application number: 21839610.9 (22) Date of filing: 08.12.2021

(51) International Patent Classification (IPC):  B64D 11/00(2006.01) H04N 21/214(2011.01) H04N 21/414(2011.01) H04W 12/50(2021.01) H04L 67/12(2022.01) H04N 21/41(2011.01) H04N 21/4363(2011.01) (52) Cooperative Patent Classification (CPC): B64D 11/00155; B64D 11/0624; H04W 12/50; H04N 21/2146; H04L 67/12; H04W 4/80 (86) International application number: PCT/GB2021/053214 (87) International publication number: WO 2022/123245 (16.06.2022 Gazette 2022/24)

(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: 08.12.2020 GB 202019334 (71) Applicant: IFPL Group Limited Calbourne, Newport, Isle of Wight PO30 4JY (GB)	(72) Inventor: WRIGHT, John Newport Isle of Wight Hampshire PO30 4JY (GB) (74) Representative: Barker Brettell LLP  100 Hagley Road Edgbaston Birmingham, West Midlands B16 8QQ Birmingham, West Midlands B16 8QQ (GB)