(19)
(11) EP 3 869 821 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
14.12.2022 Bulletin 2022/50

(45) Mention of the grant of the patent:
26.10.2022 Bulletin 2022/43

(21) Application number: 21158473.5

(22) Date of filing: 22.02.2021
(51) International Patent Classification (IPC): 
H04R 1/10(2006.01)
(52) Cooperative Patent Classification (CPC):
H04R 2410/07; H04R 1/1083; H04R 2410/05; H04R 2460/01

(54)

SIGNAL PROCESSING METHOD AND DEVICE FOR EARPHONE, AND EARPHONE

SIGNALVERARBEITUNGSVERFAHREN UND -VORRICHTUNG FÜR KOPFHÖRER UND KOPFHÖRER

PROCÉDÉ ET DISPOSITIF DE TRAITEMENT DE SIGNAL POUR ÉCOUTEUR ET ÉCOUTEUR

(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

(30) Priority: 20.02.2020 CN 202010103438

(43) Date of publication of application:
25.08.2021 Bulletin 2021/34

(73) Proprietor: Little Bird Co., Ltd
Beijing (CN)

(72) Inventors:
  • LIU, Song
    Beijing 100191 (CN)
  • LI, Na
    Beijing 100191 (CN)
  • LI, Bo
    Beijing 100191 (CN)

(74) Representative: Lavoix 
Bayerstraße 83
80335 München
80335 München (DE)


(56) References cited: : 
WO-A1-2019/141102
JP-A- 2007 002 393
US-A1- 2018 018 954
 GB-A- 2 500 251
US-A1- 2017 374 477
   
       
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).