(19)
(11) EP 3 854 304 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
09.02.2022 Bulletin 2022/06

(43) Date of publication:
28.07.2021 Bulletin 2021/30

(21) Application number: 19934334.4

(22) Date of filing: 29.11.2019
(51) International Patent Classification (IPC): 
A61B 5/318(2021.01)
A61B 5/276(2021.01)
 A61B 5/308(2021.01)
A61B 5/00(2006.01)
(52) Cooperative Patent Classification (CPC):
A61B 5/308; A61B 5/318; A61B 5/7225; A61B 5/276
(86) International application number:
PCT/CN2019/122202
(87) International publication number:
WO 2021/103011 (03.06.2021 Gazette 2021/22)
(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: Shenzhen Goodix Technology Co., Ltd.
Shenzhen, Guangdong 518045 (CN)

(72) Inventors:
  • KONG, Chenyang
    Shenzhen Guangdong 518045 (CN)
  • NG, Si Herng
    Shenzhen Guangdong 518045 (CN)

(74) Representative: Würmser, Julian 
Meissner Bolte Patentanwälte Rechtsanwälte Partnerschaft mbB Postfach 86 06 24
81633 München
81633 München (DE)


(56) References cited: : 
   
       


    (54) DETECTION CIRCUIT, ELECTROCARDIOGRAM MEASUREMENT APPARATUS, AND WEARABLE DEVICE


    (57) Some embodiments of the present disclosure relate to electronic technologies, and provide a detection circuit. According to embodiments of the present disclosure, the detection circuit includes a first load module (101), a second load module (102), a third load module (103), a first detection module (104), a second detection module (105), and an obtaining module (106). A first end of the first detection module (104) is connected to a junction between a first detection electrode and the first load module (101), a second end of the first detection module (104) is connected to the obtaining module (106), a first end of the second detection module (105) is connected to a junction between a second detection electrode and the second load module (102), and a second end of the second detection module (105) is connected to the obtaining module (106). In some embodiments, the detection circuit can detect a wearing state or a falling-off state of three detection electrodes.