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EP 4 218 004 A1

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(43) Date of publication: 02.08.2023 Bulletin 2023/31 (21) Application number: 20957997.8 (22) Date of filing: 20.10.2020

(51) International Patent Classification (IPC):  G10K 11/175(2006.01) G10L 21/02(2013.01) H04R 1/10(2006.01) (52) Cooperative Patent Classification (CPC): G10K 11/175; H04R 1/10; G10L 21/0208; H04R 25/50; H04R 25/70 (86) International application number: PCT/CN2020/122115 (87) International publication number: WO 2022/082414 (28.04.2022 Gazette 2022/17)

(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 (71) Applicant: Huawei Technologies Co., Ltd. Shenzhen, Guangdong 518129 (CN)	(72) Inventors: ENZNER, Gerald 44801 Bochum (DE) THALEISER, Stefan 44801 Bochum (DE) (74) Representative: Roth, Sebastian  Mitscherlich PartmbB Patent- und Rechtsanwälte Sonnenstraße 33 80331 München 80331 München (DE)