CN109496290A - 电容检测电路及电子装置 - Google Patents

电容检测电路及电子装置 Download PDF

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Publication number
CN109496290A
CN109496290A CN201780000370.7A CN201780000370A CN109496290A CN 109496290 A CN109496290 A CN 109496290A CN 201780000370 A CN201780000370 A CN 201780000370A CN 109496290 A CN109496290 A CN 109496290A
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CN
China
Prior art keywords
detection circuit
capacitive detection
coupled
impedance
amplifier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201780000370.7A
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English (en)
Chinese (zh)
Inventor
陈圣凯
文亚南
杨富强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Goodix Technology Co Ltd
Original Assignee
Shenzhen Goodix Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Goodix Technology Co Ltd filed Critical Shenzhen Goodix Technology Co Ltd
Publication of CN109496290A publication Critical patent/CN109496290A/zh
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)
  • Amplifiers (AREA)
CN201780000370.7A 2017-01-06 2017-01-06 电容检测电路及电子装置 Pending CN109496290A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/070492 WO2018126459A1 (fr) 2017-01-06 2017-01-06 Circuit de mesure de capacité et dispositif électronique

Publications (1)

Publication Number Publication Date
CN109496290A true CN109496290A (zh) 2019-03-19

Family

ID=62788920

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201780000370.7A Pending CN109496290A (zh) 2017-01-06 2017-01-06 电容检测电路及电子装置

Country Status (2)

Country Link
CN (1) CN109496290A (fr)
WO (1) WO2018126459A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101479692A (zh) * 2006-05-02 2009-07-08 苹果公司 多点触摸表面控制器
US20110063246A1 (en) * 2009-09-14 2011-03-17 Au Optronics Corp. Capacitive touch detection system and detection signal receiving and waveform shaping module
CN103049158A (zh) * 2012-12-31 2013-04-17 深圳市汇顶科技股份有限公司 一种电容式触摸屏的触摸检测方法及系统
CN103150055A (zh) * 2013-02-07 2013-06-12 友达光电股份有限公司 触控芯片及采用此触控芯片的触控装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201232375A (en) * 2011-01-31 2012-08-01 xiang-yu Li Measuring device for micro impedance variation
TWI488099B (zh) * 2013-06-20 2015-06-11 Ind Tech Res Inst 觸控裝置及感測補償方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101479692A (zh) * 2006-05-02 2009-07-08 苹果公司 多点触摸表面控制器
US20110063246A1 (en) * 2009-09-14 2011-03-17 Au Optronics Corp. Capacitive touch detection system and detection signal receiving and waveform shaping module
CN103049158A (zh) * 2012-12-31 2013-04-17 深圳市汇顶科技股份有限公司 一种电容式触摸屏的触摸检测方法及系统
CN103150055A (zh) * 2013-02-07 2013-06-12 友达光电股份有限公司 触控芯片及采用此触控芯片的触控装置

Also Published As

Publication number Publication date
WO2018126459A1 (fr) 2018-07-12

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Application publication date: 20190319

RJ01 Rejection of invention patent application after publication