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EP 4 578 194 A1

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(43) Date of publication: 02.07.2025 Bulletin 2025/27 (21) Application number: 23769034.2 (22) Date of filing: 30.08.2023

(51) International Patent Classification (IPC):  H04R 1/10(2006.01) (52) Cooperative Patent Classification (CPC): H04R 2420/07; H04R 1/1016; H04R 1/1041; H04R 2460/03 (86) International application number: PCT/US2023/031470 (87) International publication number: WO 2024/076439 (11.04.2024 Gazette 2024/15)

(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: 07.10.2022 US 202263414276 P 19.01.2023 US 202363440047 P 02.06.2023 US 202318205338 02.06.2023 US 202318205346 (71) Applicant: Google LLC Mountain View, CA 94043 (US)

(72) Inventors: BARROS, Daniel Mountain View, California 94043 (US) KUMAR, Sunil Mountain View, California 94043 (US) (74) Representative: Maikowski & Ninnemann Patentanwälte Partnerschaft mbB  Postfach 15 09 20 10671 Berlin 10671 Berlin (DE)