JPS57176448A - Inhibitor for interference of capacitive keyboard - Google Patents

Inhibitor for interference of capacitive keyboard

Info

Publication number
JPS57176448A
JPS57176448A JP57055233A JP5523382A JPS57176448A JP S57176448 A JPS57176448 A JP S57176448A JP 57055233 A JP57055233 A JP 57055233A JP 5523382 A JP5523382 A JP 5523382A JP S57176448 A JPS57176448 A JP S57176448A
Authority
JP
Japan
Prior art keywords
inhibitor
interference
capacitive keyboard
capacitive
keyboard
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
JP57055233A
Other languages
Japanese (ja)
Inventor
Oodoin Maruseru
Fuederi Jiyannmaruku
Pujiyowa Robeeru
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of JPS57176448A publication Critical patent/JPS57176448A/en
Pending legal-status Critical Current

Links

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
    • H03K17/96—Touch switches
    • H03K17/962—Capacitive touch switches
    • H03K17/9622—Capacitive touch switches using a plurality of detectors, e.g. keyboard
    • 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
    • H03K2217/96077—Constructional details of capacitive touch and proximity switches comprising an electrode which is floating

Landscapes

  • Electronic Switches (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
JP57055233A 1981-04-03 1982-04-02 Inhibitor for interference of capacitive keyboard Pending JPS57176448A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8106757A FR2503494A1 (en) 1981-04-03 1981-04-03 Capacitative touch operated keyboard immune to interference - uses reception electrode signal difference to generate noise free output signal and interference level detection to inhibit key pad operation

Publications (1)

Publication Number Publication Date
JPS57176448A true JPS57176448A (en) 1982-10-29

Family

ID=9256994

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57055233A Pending JPS57176448A (en) 1981-04-03 1982-04-02 Inhibitor for interference of capacitive keyboard

Country Status (2)

Country Link
JP (1) JPS57176448A (en)
FR (1) FR2503494A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06162888A (en) * 1992-11-25 1994-06-10 Matsushita Electric Works Ltd Noncontact type switch
JP2007013432A (en) * 2005-06-29 2007-01-18 Alps Electric Co Ltd Input device
JP2011154734A (en) * 2006-05-02 2011-08-11 Apple Inc Multipoint touch surface controller

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4758830A (en) * 1984-10-25 1988-07-19 Ti Corporate Services Limited Switch/display units
DE102007050654B4 (en) 2007-10-24 2015-06-18 Diehl Ako Stiftung & Co. Kg Capacitive touch switch
EP3140720B1 (en) 2014-05-06 2022-01-26 Texas Instruments Incorporated Capacitive touch sensor and method
DE102015219987A1 (en) * 2015-10-14 2017-04-20 Continental Automotive Gmbh Sensor device for detecting an approach for a motor vehicle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1525016A (en) * 1975-09-23 1978-09-20 Sefton P Electric touch or proximity switches
GB1582640A (en) * 1976-10-18 1981-01-14 Alphameric Keyboards Ltd Keyboards for electronic circuits
JPS586966B2 (en) * 1977-05-24 1983-02-07 ぺんてる株式会社 capacitive coupling tablet

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06162888A (en) * 1992-11-25 1994-06-10 Matsushita Electric Works Ltd Noncontact type switch
JP2007013432A (en) * 2005-06-29 2007-01-18 Alps Electric Co Ltd Input device
JP4533259B2 (en) * 2005-06-29 2010-09-01 アルプス電気株式会社 Input device
JP2011154734A (en) * 2006-05-02 2011-08-11 Apple Inc Multipoint touch surface controller
US9262029B2 (en) 2006-05-02 2016-02-16 Apple Inc. Multipoint touch surface controller
US9547394B2 (en) 2006-05-02 2017-01-17 Apple Inc. Multipoint touch surface controller
JP2018110041A (en) * 2006-05-02 2018-07-12 アップル インコーポレイテッド Multipoint touch surface controller
US10915207B2 (en) 2006-05-02 2021-02-09 Apple Inc. Multipoint touch surface controller
US11853518B2 (en) 2006-05-02 2023-12-26 Apple Inc. Multipoint touch surface controller

Also Published As

Publication number Publication date
FR2503494A1 (en) 1982-10-08
FR2503494B1 (en) 1985-02-22

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