(19)

(11)

EP 4 740 489 A1

(12)

(43) Date of publication: 13.05.2026 Bulletin 2026/20 (21) Application number: 23745640.5 (22) Date of filing: 06.07.2023

(51) International Patent Classification (IPC):  H04R 3/02(2006.01) G10L 25/78(2013.01) H04R 27/00(2006.01) H04J 3/17(2006.01) (52) Cooperative Patent Classification (CPC): H04R 3/02; H04R 27/00; H04R 2499/13 (86) International application number: PCT/IB2023/057007 (87) International publication number: WO 2025/008669 (09.01.2025 Gazette 2025/02)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (71) Applicant: Patmos Unipessoal Lda 9000-059 Funchal, Madeira (PT)	(72) Inventor: JAMES, Robert Hatfield, Hertfordshire AL10 8HN (GB) (GB) (74) Representative: Metroconsult Srl  Via Sestriere, 100 10060 None (TO) 10060 None (TO) (IT)