WO2009044920A1 - 静電容量型近接センサおよび近接検知方法 - Google Patents

静電容量型近接センサおよび近接検知方法 Download PDF

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Publication number
WO2009044920A1
WO2009044920A1 PCT/JP2008/068194 JP2008068194W WO2009044920A1 WO 2009044920 A1 WO2009044920 A1 WO 2009044920A1 JP 2008068194 W JP2008068194 W JP 2008068194W WO 2009044920 A1 WO2009044920 A1 WO 2009044920A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
electrode
detection method
proximity
shield
Prior art date
Application number
PCT/JP2008/068194
Other languages
English (en)
French (fr)
Inventor
Takeshi Togura
Original Assignee
Fujikura 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 Fujikura Ltd. filed Critical Fujikura Ltd.
Priority to US12/677,907 priority Critical patent/US8692565B2/en
Priority to CN2008801102683A priority patent/CN101815956B/zh
Priority to EP08836192.8A priority patent/EP2187241B1/en
Priority to JP2009536138A priority patent/JP4897886B2/ja
Publication of WO2009044920A1 publication Critical patent/WO2009044920A1/ja

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Classifications

    • 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
    • H03K2217/96073—Amplitude comparison
    • 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
    • H03K2217/960755—Constructional details of capacitive touch and proximity switches
    • H03K2217/960765—Details of shielding arrangements

Landscapes

  • Geophysics And Detection Of Objects (AREA)
  • Electronic Switches (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)

Abstract

　静電容量型近接センサ１００は、センサ部１０と検知回路部２０とを備え、センサ部１０はセンサ電極１１、シールド電極１２および補助電極１３を有する。センサ電極１１はＣ－Ｖ変換回路２１に接続され、シールド電極１２はシールド駆動回路２４に接続されている。補助電極１３は、切替スイッチ３０を介してＣ－Ｖ変換回路２１またはシールド駆動回路２４に接続される。切替スイッチ３０にて切り替えられてＣ－Ｖ変換回路２１にて検出された静電容量値Ｃ１，Ｃ２を比較して、センサ電極１１の検知領域の範囲を任意に設定する。
PCT/JP2008/068194 2007-10-04 2008-10-06 静電容量型近接センサおよび近接検知方法 WO2009044920A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US12/677,907 US8692565B2 (en) 2007-10-04 2008-10-06 Capacitive proximity sensor and proximity sensing method
CN2008801102683A CN101815956B (zh) 2007-10-04 2008-10-06 静电容型接近传感器和接近检测方法
EP08836192.8A EP2187241B1 (en) 2007-10-04 2008-10-06 Capacitive proximity sensor and proximity detection method
JP2009536138A JP4897886B2 (ja) 2007-10-04 2008-10-06 静電容量型近接センサおよび近接検知方法

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007-261233 2007-10-04
JP2007261233 2007-10-04
JP2007295607 2007-11-14
JP2007-295607 2007-11-14

Publications (1)

Publication Number Publication Date
WO2009044920A1 true WO2009044920A1 (ja) 2009-04-09

Family

ID=40526333

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/068194 WO2009044920A1 (ja) 2007-10-04 2008-10-06 静電容量型近接センサおよび近接検知方法

Country Status (6)

Country Link
US (1) US8692565B2 (ja)
EP (1) EP2187241B1 (ja)
JP (1) JP4897886B2 (ja)
KR (1) KR20100100773A (ja)
CN (1) CN101815956B (ja)
WO (1) WO2009044920A1 (ja)

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WO2010060767A1 (de) * 2008-11-25 2010-06-03 Huf Hülsbeck & Fürst Gmbh & Co. Kg Kapazitiver annäherungssensor mit einer schirmelektrode und einer diagnoseelektrode
JP2010223794A (ja) * 2009-03-24 2010-10-07 Fujikura Ltd 静電容量型近接センサ、近接検知方法および静電容量型近接センサの電極構造
JP2010276524A (ja) * 2009-05-29 2010-12-09 Act Lsi:Kk 耐ノイズ性にすぐれた静電式近接センサの電極システム、および静電式近接センサ
WO2011024306A1 (ja) * 2009-08-31 2011-03-03 Nonogaki Keiichi 静電容量型近接センサ
JP5473093B1 (ja) * 2012-12-18 2014-04-16 パナソニック株式会社 携帯端末装置
CN104601158A (zh) * 2014-12-26 2015-05-06 科世达（上海）管理有限公司 一种组合开关
JP2022517372A (ja) * 2019-01-16 2022-03-08 マイクロチップ テクノロジー インコーポレイテッド 高感度静電容量検知用途のための二重測定、並びに関連するシステム、方法、及びデバイス

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Cited By (8)

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Publication number Priority date Publication date Assignee Title
WO2010060767A1 (de) * 2008-11-25 2010-06-03 Huf Hülsbeck & Fürst Gmbh & Co. Kg Kapazitiver annäherungssensor mit einer schirmelektrode und einer diagnoseelektrode
JP2010223794A (ja) * 2009-03-24 2010-10-07 Fujikura Ltd 静電容量型近接センサ、近接検知方法および静電容量型近接センサの電極構造
JP2010276524A (ja) * 2009-05-29 2010-12-09 Act Lsi:Kk 耐ノイズ性にすぐれた静電式近接センサの電極システム、および静電式近接センサ
WO2011024306A1 (ja) * 2009-08-31 2011-03-03 Nonogaki Keiichi 静電容量型近接センサ
JP5473093B1 (ja) * 2012-12-18 2014-04-16 パナソニック株式会社 携帯端末装置
CN104601158A (zh) * 2014-12-26 2015-05-06 科世达（上海）管理有限公司 一种组合开关
JP2022517372A (ja) * 2019-01-16 2022-03-08 マイクロチップ テクノロジー インコーポレイテッド 高感度静電容量検知用途のための二重測定、並びに関連するシステム、方法、及びデバイス
JP7449947B2 (ja) 2019-01-16 2024-03-14 マイクロチップ テクノロジー インコーポレイテッド 高感度静電容量検知用途のための二重測定、並びに関連するシステム、方法、及びデバイス

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US8692565B2 (en) 2014-04-08
KR20100100773A (ko) 2010-09-15
JPWO2009044920A1 (ja) 2011-02-17
EP2187241A1 (en) 2010-05-19
EP2187241A4 (en) 2012-03-07
CN101815956B (zh) 2013-07-10
EP2187241B1 (en) 2018-09-19
JP4897886B2 (ja) 2012-03-14
CN101815956A (zh) 2010-08-25
US20100259283A1 (en) 2010-10-14

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