(19)

(11)

EP 4 573 761 A1

(12)

(43) Date of publication: 25.06.2025 Bulletin 2025/26 (21) Application number: 23764442.2 (22) Date of filing: 08.08.2023

(51) International Patent Classification (IPC):  H04R 5/033(2006.01) (52) Cooperative Patent Classification (CPC): H04R 5/033; H04R 2420/07; H04R 2201/107; H04R 1/1041; H04R 1/1016 (86) International application number: PCT/US2023/029751 (87) International publication number: WO 2024/039545 (22.02.2024 Gazette 2024/08)

(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 (30) Priority: 17.08.2022 US 202263398798 P 24.03.2023 US 202318125978 (71) Applicant: Google LLC Mountain View, CA 94043 (US)	(72) Inventor: LIU, Peter T. Mountain View, California 94043 (US) (74) Representative: Maikowski & Ninnemann Patentanwälte Partnerschaft mbB  Postfach 15 09 20 10671 Berlin 10671 Berlin (DE)