WO2009048077A1 - 容量変化検出回路、タッチパネル及び判定方法 - Google Patents

容量変化検出回路、タッチパネル及び判定方法 Download PDF

Info

Publication number
WO2009048077A1
WO2009048077A1 PCT/JP2008/068300 JP2008068300W WO2009048077A1 WO 2009048077 A1 WO2009048077 A1 WO 2009048077A1 JP 2008068300 W JP2008068300 W JP 2008068300W WO 2009048077 A1 WO2009048077 A1 WO 2009048077A1
Authority
WO
WIPO (PCT)
Prior art keywords
detection circuit
contact
electrodes
capacity change
touch panel
Prior art date
Application number
PCT/JP2008/068300
Other languages
English (en)
French (fr)
Inventor
Kazuto Yamauchi
Yasunori Murayama
Sadahiko Tanaka
Keitaro Takizawa
Kouichi Yamanoue
Original Assignee
Mitsubishi Jidosha Kogyo Kabushiki Kaisha
Visteon Japan, 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 Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Visteon Japan, Ltd. filed Critical Mitsubishi Jidosha Kogyo Kabushiki Kaisha
Priority to US12/680,390 priority Critical patent/US8587553B2/en
Priority to CN2008801111875A priority patent/CN101821947B/zh
Priority to KR1020107010056A priority patent/KR101126508B1/ko
Priority to DE112008002731.5T priority patent/DE112008002731B4/de
Publication of WO2009048077A1 publication Critical patent/WO2009048077A1/ja

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
    • G01R27/2605—Measuring capacitance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/945—Proximity switches
    • H03K17/955—Proximity switches using a capacitive detector
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
    • H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
    • H03K2217/96—Touch switches
    • H03K2217/9607—Capacitive touch switches
    • H03K2217/96071—Capacitive touch switches characterised by the detection principle
    • H03K2217/96072—Phase comparison, i.e. where a phase comparator receives at one input the signal directly from the oscillator, at a second input the same signal but delayed, with a delay depending on a sensing capacitance

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Electronic Switches (AREA)
  • Position Input By Displaying (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

　検出回路１は、入力部２と、入力部に接続された２つの接触電極Ａ、Ｂと、接触電極Ａに接続された位相反転手段３と、各接触手段に設けられた一の増幅手段４１と、増幅手段４１に接続され、各接触電極Ａ、Ｂにおける容量変化による入力信号の振幅の変化を電気的変化量として検出する検出手段５Ａ、５Ｂとを備える。検出回路１は、位相反転手段３により、２つの電極に対し、互いに位相が半周期ずれた信号を入力せしめる。接触があった場合には入力パルスの振幅を増幅手段４１において増幅せしめ、増幅された一つの信号から各電極での信号を各検出手段５Ａ、５Ｂで検出し、各出力部６Ａ、６Ｂへ出力している。
PCT/JP2008/068300 2007-10-10 2008-10-08 容量変化検出回路、タッチパネル及び判定方法 WO2009048077A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US12/680,390 US8587553B2 (en) 2007-10-10 2008-10-08 Capacitance change detection circuit, touch panel and determination method
CN2008801111875A CN101821947B (zh) 2007-10-10 2008-10-08 容量变化检测电路、触摸面板及判定方法
KR1020107010056A KR101126508B1 (ko) 2007-10-10 2008-10-08 용량 변화 검출 회로, 터치 패널 및 판정 방법
DE112008002731.5T DE112008002731B4 (de) 2007-10-10 2008-10-08 Kapazitätsänderungserfassungsschaltung, Touch Panel und Bestimmungsverfahren

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-264112 2007-10-10
JP2007264112A JP4941938B2 (ja) 2007-10-10 2007-10-10 容量変化検出回路、タッチパネル及び判定方法

Publications (1)

Publication Number Publication Date
WO2009048077A1 true WO2009048077A1 (ja) 2009-04-16

Family

ID=40549221

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/068300 WO2009048077A1 (ja) 2007-10-10 2008-10-08 容量変化検出回路、タッチパネル及び判定方法

Country Status (7)

Country Link
US (1) US8587553B2 (ja)
JP (1) JP4941938B2 (ja)
KR (1) KR101126508B1 (ja)
CN (1) CN101821947B (ja)
DE (1) DE112008002731B4 (ja)
RU (1) RU2433526C1 (ja)
WO (1) WO2009048077A1 (ja)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101499024B1 (ko) * 2012-11-28 2015-03-06 에이디반도체(주) 정전용량 센서 장치
JP6115888B2 (ja) * 2013-03-29 2017-04-19 Toto株式会社 静電容量式タッチセンサ
JP6168470B2 (ja) * 2013-03-29 2017-07-26 Toto株式会社 静電容量式タッチセンサ
DE102017105957B3 (de) 2017-03-20 2018-09-13 Hochschule Osnabrück Bedienelement zum Schalten einer elektronischen Einrichtung
JP7028886B2 (ja) * 2017-11-10 2022-03-02 アルプスアルパイン株式会社 入力装置
EP3547092A4 (en) * 2018-02-05 2020-02-12 Shenzhen Goodix Technology Co., Ltd. TOUCH CONTROL DEVICE, DEMODULATION METHOD, AND TOUCH CONTROL SYSTEM

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS629423A (ja) * 1985-07-05 1987-01-17 Seiko Epson Corp 入力兼表示装置
JPH07307657A (ja) * 1992-04-30 1995-11-21 Varitronix Ltd タッチセンス装置
JP2000295183A (ja) * 1999-03-29 2000-10-20 Gsl Research Technology Ltd タッチリンク
JP2004206288A (ja) * 2002-12-24 2004-07-22 Alps Electric Co Ltd 入力装置を備えた電子機器

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3761736A (en) * 1971-05-12 1973-09-25 Godwin Warren Engin Ltd Proximity switches
US3781736A (en) * 1972-10-26 1973-12-25 Gen Electric Shield for permanent magnet structure
JP2733300B2 (ja) * 1989-04-28 1998-03-30 松下電器産業株式会社 キー入力装置
US5963277A (en) * 1996-08-24 1999-10-05 Lg Electronics Inc. Position sensible liquid crystal display device
JP4830228B2 (ja) 2001-07-30 2011-12-07 オムロン株式会社 タッチセンサ
JP2004028719A (ja) 2002-06-25 2004-01-29 Tdk Corp 静電容量センサ
CN1287522C (zh) * 2002-12-20 2006-11-29 阿尔卑斯电气株式会社 具有静电传感器的输入装置
JP4009953B2 (ja) 2003-05-14 2007-11-21 オムロン株式会社 物体検知センサ
DE102005063023A1 (de) * 2005-12-14 2007-06-21 Gerd Reime Anordnung zur Überwachung eines Objekts
CN100370402C (zh) * 2005-08-05 2008-02-20 鸿富锦精密工业（深圳）有限公司 触摸式感应装置
US8279180B2 (en) * 2006-05-02 2012-10-02 Apple Inc. Multipoint touch surface controller
US7812827B2 (en) * 2007-01-03 2010-10-12 Apple Inc. Simultaneous sensing arrangement
DE102007048402A1 (de) * 2007-10-09 2009-04-16 Gerd Reime Bedieneinheit und Verfahren zur Auslösung einer Funktion

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS629423A (ja) * 1985-07-05 1987-01-17 Seiko Epson Corp 入力兼表示装置
JPH07307657A (ja) * 1992-04-30 1995-11-21 Varitronix Ltd タッチセンス装置
JP2000295183A (ja) * 1999-03-29 2000-10-20 Gsl Research Technology Ltd タッチリンク
JP2004206288A (ja) * 2002-12-24 2004-07-22 Alps Electric Co Ltd 入力装置を備えた電子機器

Also Published As

Publication number Publication date
DE112008002731T5 (de) 2010-08-26
KR101126508B1 (ko) 2012-03-29
KR20100080554A (ko) 2010-07-08
US8587553B2 (en) 2013-11-19
RU2433526C1 (ru) 2011-11-10
JP2009094849A (ja) 2009-04-30
DE112008002731B4 (de) 2014-07-10
CN101821947B (zh) 2012-09-05
US20100230180A1 (en) 2010-09-16
JP4941938B2 (ja) 2012-05-30
CN101821947A (zh) 2010-09-01

Similar Documents

Publication Publication Date Title
WO2009048077A1 (ja) 容量変化検出回路、タッチパネル及び判定方法
WO2009019825A1 (ja) 電圧検出装置、及びこれを用いた電源システム
CN104423705B (zh) 触摸***及其控制方法
TWI447625B (zh) 電容式觸控偵測系統及其偵測訊號接收及波形整形模組
WO2008093683A1 (ja) 静電容量式モーション検出装置及びそれを用いた入力装置
EP2711815A3 (en) Position detecting device
WO2011084919A3 (en) Capacitance measurement circuit with dynamic feedback
JP2014063249A5 (ja)
WO2010075308A3 (en) Multiple electrode touch sensitive device
JP2016514561A5 (ja)
EP2325736A3 (en) Touch screen and method of driving the same
WO2008104397A3 (en) System and method for operating an electrochemical analyte sensor
WO2013165925A3 (en) Capacitance touch near field-far field switching
WO2011122782A3 (ko) 접촉 감지 패널 및 접촉 감지 장치
WO2013048195A3 (ko) 드라이빙 백 현상을 이용한 터치 검출수단, 검출방법 및 터치스크린패널과, 그러한 터치스크린패널을 내장한 표시장치
WO2009136198A3 (en) Capacitive transducer circuit and method
RU2016134240A (ru) Устройство для тестирования электродов
WO2011108831A3 (ko) 변위 센서 및 이를 이용한 자기 베어링 시스템
WO2012030183A3 (ko) 레벨시프트를 이용한 정전식 터치 검출 장치, 검출 방법 및 이를 내장한 표시 장치
JP2011124891A5 (ja)
WO2007136919A3 (en) Distributed class g type amplifier switching method
WO2011021358A3 (en) Capacitive electromechanical transducer apparatus and method for adjusting its sensitivity
WO2010088041A3 (en) Capacitance-to-voltage interface circuit, and related operating methods
WO2010069284A3 (de) Schaltungsanordnung und verfahren zum auswerten eines sensors
EP2214312A3 (en) Receiving side filter of duplexer and duplexer

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200880111187.5

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08836823

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 12680390

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 1120080027315

Country of ref document: DE

ENP Entry into the national phase

Ref document number: 20107010056

Country of ref document: KR

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 2010118585

Country of ref document: RU

RET De translation (de og part 6b)

Ref document number: 112008002731

Country of ref document: DE

Date of ref document: 20100826

Kind code of ref document: P

122 Ep: pct application non-entry in european phase

Ref document number: 08836823

Country of ref document: EP

Kind code of ref document: A1