JPS57204938A - Finger contact type coordinate input device - Google Patents

Finger contact type coordinate input device

Info

Publication number
JPS57204938A
JPS57204938A JP56090662A JP9066281A JPS57204938A JP S57204938 A JPS57204938 A JP S57204938A JP 56090662 A JP56090662 A JP 56090662A JP 9066281 A JP9066281 A JP 9066281A JP S57204938 A JPS57204938 A JP S57204938A
Authority
JP
Japan
Prior art keywords
coordinate
detecting
induced
key
electrodes
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
JP56090662A
Other languages
Japanese (ja)
Inventor
Hisashi Yamaguchi
Shizuhito Ando
Keizo Kurahashi
Kazuhiro Takahara
Kazuo Yoshikawa
Toyoshi Kawada
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP56090662A priority Critical patent/JPS57204938A/en
Publication of JPS57204938A publication Critical patent/JPS57204938A/en
Pending 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

Abstract

PURPOSE:To input freely coordinates precisely, by putting coordinate detecting electrodes on a field generating electrode so that a pulse voltage is induced and detecting the lowering of the level based on the approach of fingers to recognize input coordinate points. CONSTITUTION:In case that key arrangement information of a keyboard is displayed on a gas discharge panel PDP, a holding voltage pulse applied periodically to X-side and Y-side display electrode groups 13 and 14 alternately is induced effectively to X-side and Y-side coordinate detecting electrode groups 26 and 27 from a field generating electrode 25, and therefore, the level of the induced voltage pulse between both corresponding coordinate detecting electrodes is lowered considerably when the operator touches a key K with his fingers. This lowering is detected by a detecting circuit 4 cooresponding to pertinent electrodes, and the detection output is transferred as X-side and Y-side coordinate input data, namely, key-in signals from an interface to the external central processing device.
JP56090662A 1981-06-11 1981-06-11 Finger contact type coordinate input device Pending JPS57204938A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56090662A JPS57204938A (en) 1981-06-11 1981-06-11 Finger contact type coordinate input device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56090662A JPS57204938A (en) 1981-06-11 1981-06-11 Finger contact type coordinate input device

Publications (1)

Publication Number Publication Date
JPS57204938A true JPS57204938A (en) 1982-12-15

Family

ID=14004739

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56090662A Pending JPS57204938A (en) 1981-06-11 1981-06-11 Finger contact type coordinate input device

Country Status (1)

Country Link
JP (1) JPS57204938A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6182226A (en) * 1984-09-29 1986-04-25 Pentel Kk Tablet input device
US8605050B2 (en) 2007-08-21 2013-12-10 Tpk Touch Solutions (Xiamen) Inc. Conductor pattern structure of capacitive touch panel
US8610689B2 (en) 2007-04-27 2013-12-17 Tpk Touch Solutions (Xiamen) Inc. Conductor pattern structure of capacitive touch panel
US10282040B2 (en) 2009-03-20 2019-05-07 Tpk Touch Solutions (Xiamen) Inc. Capacitive touch circuit pattern and manufacturing method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6182226A (en) * 1984-09-29 1986-04-25 Pentel Kk Tablet input device
US8610689B2 (en) 2007-04-27 2013-12-17 Tpk Touch Solutions (Xiamen) Inc. Conductor pattern structure of capacitive touch panel
US8610687B2 (en) 2007-04-27 2013-12-17 Tpk Touch Solutions Inc. Conductor pattern structure of capacitive touch panel
US8605050B2 (en) 2007-08-21 2013-12-10 Tpk Touch Solutions (Xiamen) Inc. Conductor pattern structure of capacitive touch panel
US10282040B2 (en) 2009-03-20 2019-05-07 Tpk Touch Solutions (Xiamen) Inc. Capacitive touch circuit pattern and manufacturing method thereof

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