JPS57193830A - Method of eliminating cross talk and electric interference for capacitive keyboard device and capacitive keyboard - Google Patents

Method of eliminating cross talk and electric interference for capacitive keyboard device and capacitive keyboard

Info

Publication number
JPS57193830A
JPS57193830A JP57072503A JP7250382A JPS57193830A JP S57193830 A JPS57193830 A JP S57193830A JP 57072503 A JP57072503 A JP 57072503A JP 7250382 A JP7250382 A JP 7250382A JP S57193830 A JPS57193830 A JP S57193830A
Authority
JP
Japan
Prior art keywords
capacitive keyboard
cross talk
eliminating cross
electric interference
capacitive
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.)
Granted
Application number
JP57072503A
Other languages
English (en)
Other versions
JPS6259325B2 (ja
Inventor
Wai Chiyai Toomasu
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.)
Honeywell Inc
Original Assignee
Honeywell Inc
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 Honeywell Inc filed Critical Honeywell Inc
Publication of JPS57193830A publication Critical patent/JPS57193830A/ja
Publication of JPS6259325B2 publication Critical patent/JPS6259325B2/ja
Granted legal-status Critical Current

Links

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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • 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

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)
  • Input From Keyboards Or The Like (AREA)
  • Electronic Switches (AREA)
JP57072503A 1981-04-28 1982-04-28 Method of eliminating cross talk and electric interference for capacitive keyboard device and capacitive keyboard Granted JPS57193830A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/258,248 US4405917A (en) 1981-04-28 1981-04-28 Matrix screening and grounding arrangement and method

Publications (2)

Publication Number Publication Date
JPS57193830A true JPS57193830A (en) 1982-11-29
JPS6259325B2 JPS6259325B2 (ja) 1987-12-10

Family

ID=22979728

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57072503A Granted JPS57193830A (en) 1981-04-28 1982-04-28 Method of eliminating cross talk and electric interference for capacitive keyboard device and capacitive keyboard

Country Status (5)

Country Link
US (1) US4405917A (ja)
EP (1) EP0063800B1 (ja)
JP (1) JPS57193830A (ja)
CA (1) CA1187962A (ja)
DE (1) DE3268368D1 (ja)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60181815A (ja) * 1984-02-29 1985-09-17 Toupure Kk キヤパシテイブキ−ボ−ド
JPS61185876A (ja) * 1985-02-14 1986-08-19 松下電器産業株式会社 静電容量基板
JPS62144223A (ja) * 1985-12-18 1987-06-27 Matsushita Electric Ind Co Ltd 静電容量式キ−ボ−ドスイツチ
JPH02168310A (ja) * 1988-09-14 1990-06-28 Fujitsu Ltd スイッチマトリックスの入力検出装置
WO2016080251A1 (ja) * 2014-11-17 2016-05-26 東プレ株式会社 静電容量式キーボード
WO2016104102A1 (ja) * 2014-12-26 2016-06-30 東プレ株式会社 静電容量式キーボード

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4758829A (en) * 1982-06-04 1988-07-19 Smith Iii William N Apparatus for stimulating a keyboard
JPS6029969B2 (ja) * 1982-06-18 1985-07-13 富士通株式会社 タッチ検出装置
DE3372407D1 (en) * 1982-09-29 1987-08-13 Emi Ltd A tactile array sensor
JPS60175077A (ja) * 1984-02-22 1985-09-09 株式会社日立製作所 情報保持装置
IL72736A0 (en) * 1984-08-21 1984-11-30 Cybertronics Ltd Surface-area pressure transducers
US4651133A (en) * 1984-12-24 1987-03-17 At&T Technologies, Inc. Method and apparatus for capacitive keyboard scanning
US4706068A (en) * 1985-01-30 1987-11-10 Wyse Technology, Inc. Four wire keyboard interface
FR2581491A1 (fr) * 1985-05-02 1986-11-07 Lewiner Jacques Perfectionnements aux ensembles electroniques d'identification des claviers capacitifs
US4779094A (en) * 1985-11-23 1988-10-18 Lee Doo S Apparatus for remotely determining the angular orientation, speed and/or direction of rotary objects
US4728931A (en) * 1986-07-25 1988-03-01 Honeywell Inc. Charge redistribution capacitance detection apparatus
US4728932A (en) * 1986-07-25 1988-03-01 Honeywell Inc. Detector for capacitive sensing devices
DE8900946U1 (ja) * 1988-09-30 1990-02-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
US5254989A (en) * 1988-12-20 1993-10-19 Bull S.A. Garbling the identification of a key of a non-coded keyboard, and circuit for performing the method
US5070330A (en) * 1989-01-12 1991-12-03 Acer Incorporated Keyboard scanning matrix
US5189417A (en) * 1990-10-16 1993-02-23 Donnelly Corporation Detection circuit for matrix touch pad
US5572205A (en) * 1993-03-29 1996-11-05 Donnelly Technology, Inc. Touch control system
US5594222A (en) * 1994-10-25 1997-01-14 Integrated Controls Touch sensor and control circuit therefor
US5796183A (en) * 1996-01-31 1998-08-18 Nartron Corporation Capacitive responsive electronic switching circuit
AU759050B2 (en) 1996-12-10 2003-04-03 Touchsensor Technologies Llc Differential touch sensors and control circuit therefor
US6320282B1 (en) 1999-01-19 2001-11-20 Touchsensor Technologies, Llc Touch switch with integral control circuit
US7906875B2 (en) 1999-01-19 2011-03-15 Touchsensor Technologies, Llc Touch switches and practical applications therefor
US8144125B2 (en) 2006-03-30 2012-03-27 Cypress Semiconductor Corporation Apparatus and method for reducing average scan rate to detect a conductive object on a sensing device
US8059015B2 (en) 2006-05-25 2011-11-15 Cypress Semiconductor Corporation Capacitance sensing matrix for keyboard architecture
US8040321B2 (en) * 2006-07-10 2011-10-18 Cypress Semiconductor Corporation Touch-sensor with shared capacitive sensors
US8350730B2 (en) * 2006-10-13 2013-01-08 Infineon Technologies Ag Keyboard scan
US8350733B2 (en) * 2006-10-13 2013-01-08 Infineon Technologies Ag Keyboard scan for human interface devices
US8058937B2 (en) * 2007-01-30 2011-11-15 Cypress Semiconductor Corporation Setting a discharge rate and a charge rate of a relaxation oscillator circuit
US8144126B2 (en) 2007-05-07 2012-03-27 Cypress Semiconductor Corporation Reducing sleep current in a capacitance sensing system
US8258986B2 (en) 2007-07-03 2012-09-04 Cypress Semiconductor Corporation Capacitive-matrix keyboard with multiple touch detection

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4856343A (ja) * 1971-11-12 1973-08-08
JPS4975024A (ja) * 1972-10-18 1974-07-19
JPS5621226A (en) * 1979-07-30 1981-02-27 Ibm Data entry keybord

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921166A (en) * 1972-09-15 1975-11-18 Raytheon Co Capacitance matrix keyboard
GB1464912A (en) * 1973-02-26 1977-02-16 Casio Computer Co Ltd Information input device
US3931610A (en) * 1973-11-29 1976-01-06 Teletype Corporation Capacitive keyswitch sensor and method
US4037225A (en) * 1975-11-25 1977-07-19 Xerox Corporation Keyboard encoding system with electronic hysteresis
US4163222A (en) * 1976-02-27 1979-07-31 Amkey, Incorporated Synchronous phase detected keyboard
US4234871A (en) * 1978-06-06 1980-11-18 Ing. C. Olivetti & C., S.P.A. Capacitive keyboard for data processing equipments
US4211915A (en) * 1978-12-04 1980-07-08 General Electric Company Keyboard verification system
US4274752A (en) * 1979-04-02 1981-06-23 International Business Machines Corporation Keyboard multiple switch assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4856343A (ja) * 1971-11-12 1973-08-08
JPS4975024A (ja) * 1972-10-18 1974-07-19
JPS5621226A (en) * 1979-07-30 1981-02-27 Ibm Data entry keybord

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60181815A (ja) * 1984-02-29 1985-09-17 Toupure Kk キヤパシテイブキ−ボ−ド
JPS61185876A (ja) * 1985-02-14 1986-08-19 松下電器産業株式会社 静電容量基板
JPS62144223A (ja) * 1985-12-18 1987-06-27 Matsushita Electric Ind Co Ltd 静電容量式キ−ボ−ドスイツチ
JPH02168310A (ja) * 1988-09-14 1990-06-28 Fujitsu Ltd スイッチマトリックスの入力検出装置
WO2016080251A1 (ja) * 2014-11-17 2016-05-26 東プレ株式会社 静電容量式キーボード
WO2016104102A1 (ja) * 2014-12-26 2016-06-30 東プレ株式会社 静電容量式キーボード
JP2016127337A (ja) * 2014-12-26 2016-07-11 東プレ株式会社 静電容量式キーボード
US9979392B2 (en) 2014-12-26 2018-05-22 Topre Corporation Capacitive keyboard
TWI673629B (zh) * 2014-12-26 2019-10-01 日商東普雷股份有限公司 靜電電容式鍵盤

Also Published As

Publication number Publication date
EP0063800A2 (en) 1982-11-03
EP0063800A3 (en) 1983-04-06
EP0063800B1 (en) 1986-01-08
DE3268368D1 (en) 1986-02-20
JPS6259325B2 (ja) 1987-12-10
US4405917A (en) 1983-09-20
CA1187962A (en) 1985-05-28

Similar Documents

Publication Publication Date Title
JPS57193830A (en) Method of eliminating cross talk and electric interference for capacitive keyboard device and capacitive keyboard
GB2080990B (en) Touch terminal apparatus
DE3271186D1 (en) Interference cancellation method and apparatus
GB2015780B (en) Apparatus and method for electrical discharge machining
DE3175893D1 (en) Apparatus and method for bathing invalids
JPS555281A (en) Method and device for machining electroconductive parts
ZA823941B (en) Method and apparatus for controlling access to computers
JPS5511082A (en) Method and device for reducing luster of surface
ZA824689B (en) Method of treating depression using azabicyclohexanes
MY8600618A (en) Assemblies of electrical of electronic apparatus
GB2077518B (en) Method and apparatus for processing insulated wide
JPS57147474A (en) Device and method of coating
GB2075898B (en) Electrical machining methods and apparatus
JPS5396702A (en) Method of and device for reducing interference between adjacent channels
JPS5734608A (en) Method of forming electric insulator and electric insulator thereby
GB2108536B (en) Apparatus for and method of finishing-creasing trouser-like garments
DE3375001D1 (en) Contact keyboard and method of its manufacture
BG43795A1 (en) Method for operating of ironing installation and device for implementing
DE3265565D1 (en) Process for desensitizing hydroxybenzotriazoles and hydroxy-oxobenzotriazines
DE3562253D1 (en) Method for cross-linking of agar products
JPS57171393A (en) Manufacture of keyboard device
JPS577915A (en) Electrode for electronic part and method of forming same
JPS57139872A (en) Method of and apparatus for preventing faking of document
JPS54126997A (en) Cross drawing apparatus for and method of ropeeshaped body
GB2074072B (en) Electrical machining apparatus and processes