WO2017050043A1 - 电容式传感器的传感单元 - Google Patents

电容式传感器的传感单元 Download PDF

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Publication number
WO2017050043A1
WO2017050043A1 PCT/CN2016/094470 CN2016094470W WO2017050043A1 WO 2017050043 A1 WO2017050043 A1 WO 2017050043A1 CN 2016094470 W CN2016094470 W CN 2016094470W WO 2017050043 A1 WO2017050043 A1 WO 2017050043A1
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WO
WIPO (PCT)
Prior art keywords
sensor
capacitive
sensor unit
sensor electrode
unit
Prior art date
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PCT/CN2016/094470
Other languages
English (en)
French (fr)
Inventor
刘雪春
Original Assignee
深圳信炜科技有限公司
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Application filed by 深圳信炜科技有限公司 filed Critical 深圳信炜科技有限公司
Publication of WO2017050043A1 publication Critical patent/WO2017050043A1/zh

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor

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  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Electronic Switches (AREA)

Abstract

本发明公开了一种电容式传感器的传感单元。所述传感单元包括感测电极和传感电路。所述传感电极能够以电容方式耦合到目标物体，用于加载参考信号。所述传感电路包括差分对管。所述差分对管与所述感测电极相关联，用于响应感测电极上因目标物体的接近或触摸所引起参考信号的变化，而对应产生二不同的第二交流信号。所述传感单元输出的二不同的第二交流信较稳定。
PCT/CN2016/094470 2015-09-23 2016-08-10 电容式传感器的传感单元 WO2017050043A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510612657.8 2015-09-23
CN201510612657.8A CN105138207A (zh) 2015-09-23 2015-09-23 电容式传感器的传感单元

Publications (1)

Publication Number Publication Date
WO2017050043A1 true WO2017050043A1 (zh) 2017-03-30

Family

ID=54723573

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/094470 WO2017050043A1 (zh) 2015-09-23 2016-08-10 电容式传感器的传感单元

Country Status (2)

Country Link
CN (1) CN105138207A (zh)
WO (1) WO2017050043A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105138207A (zh) * 2015-09-23 2015-12-09 深圳信炜科技有限公司 电容式传感器的传感单元
CN105183258A (zh) * 2015-09-23 2015-12-23 深圳信炜科技有限公司 电容式传感器的传感单元以及传感单元组
CN106971138A (zh) * 2016-08-09 2017-07-21 深圳信炜科技有限公司 电容式传感器的传感单元
CN111144346B (zh) * 2019-12-30 2022-08-16 厦门天马微电子有限公司 一种指纹识别检测电路、指纹扫描电路及显示装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6191989B1 (en) * 2000-03-07 2001-02-20 International Business Machines Corporation Current sensing amplifier
CN1590967A (zh) * 2003-09-03 2005-03-09 精工爱普生株式会社 传感设备和传感电路
CN104809448A (zh) * 2015-05-08 2015-07-29 京东方科技集团股份有限公司 指纹传感器及显示装置
CN105138207A (zh) * 2015-09-23 2015-12-09 深圳信炜科技有限公司 电容式传感器的传感单元

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6191989B1 (en) * 2000-03-07 2001-02-20 International Business Machines Corporation Current sensing amplifier
CN1590967A (zh) * 2003-09-03 2005-03-09 精工爱普生株式会社 传感设备和传感电路
CN104809448A (zh) * 2015-05-08 2015-07-29 京东方科技集团股份有限公司 指纹传感器及显示装置
CN105138207A (zh) * 2015-09-23 2015-12-09 深圳信炜科技有限公司 电容式传感器的传感单元

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CN105138207A (zh) 2015-12-09

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