JPS63155222A - Coordinate input device - Google Patents
Coordinate input deviceInfo
- Publication number
- JPS63155222A JPS63155222A JP61302403A JP30240386A JPS63155222A JP S63155222 A JPS63155222 A JP S63155222A JP 61302403 A JP61302403 A JP 61302403A JP 30240386 A JP30240386 A JP 30240386A JP S63155222 A JPS63155222 A JP S63155222A
- Authority
- JP
- Japan
- Prior art keywords
- touch panel
- coordinate input
- panel device
- input device
- capacitance
- 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
Links
Abstract
Description
【発明の詳細な説明】
［概要］
静電容量式タッチパネルを使用するとき、静電容量の変
化を検出しタッチパネルにタッチした位置座標を入力し
ているが、何かの原因で静電容量変化が極端に大または
小となったときは「システム異常」として動作させるた
め、静電容量変化におけるしきい値を設定して、記憶装
置に格納しておくことにより、システムに判断させるよ
うにした座標入力装置である。[Detailed Description of the Invention] [Summary] When using a capacitive touch panel, changes in capacitance are detected and the coordinates of the position touched on the touch panel are input, but for some reason the capacitance changes. When the value becomes extremely large or small, it will be treated as a "system abnormality", so a threshold value for capacitance change is set and stored in the storage device, allowing the system to make a decision. It is a coordinate input device.
［産業上の利用分野］
本発明は静電容量変化を検出してタッチパネルにタッチ
した位置座標を入力する座標入力装置に関する。[Industrial Application Field] The present invention relates to a coordinate input device that detects changes in capacitance and inputs coordinates of a position touched on a touch panel.
従来の静電容量式タッチパネルにおいては、タッチパネ
ルと容量検出系との接続が外れたり、掌でタッチするな
どのため、静電容量値が極端に変化したときも、容量変
化の検出不可能と判断する程度で、異常状態とはしてい
なかったから、無駄な動作となり、そのため改善策を検
討することが求められた。With conventional capacitive touch panels, even if the capacitance value changes drastically due to disconnection between the touch panel and capacitive detection system, or touch with the palm of the hand, it is determined that the capacitance change cannot be detected. This was a wasteful operation, and it was necessary to consider ways to improve the situation, as it was not an abnormal condition.
［従来の技術］ 第４図は従来のシスーテム構成を示す図である。[Conventional technology] FIG. 4 is a diagram showing a conventional system configuration.
第４図において、１は静電容量式タッチパネル、２は判
断制御装置をそれぞれ全体的に示すものである。タッチ
パネル１において、１１はタッチパネル装置、１２〜１
５は切換スイッチ、１６はタッチパネル装置の成る点Ｐ
と接地間の静電容量を示している。判断制御装置２にお
いて、２１は発振器、２２はカウンタ、２３は演算制御
装置例えばマイクロコンピュータ、２４はクロックパル
スを示す、タッチパネル装置１１のＰ点に人の指でタッ
チされたとき、静電容量１６はそれ以前より大きくなる
。その変化を起こした点Ｐの座標を切換スイッチ１２〜
１５の切換えにより検出し、判断制御装置２において座
標を検出する。検出座標値は図示しないホストコンピュ
ータへ伝送し、タッチ座標を知り次の処理・制御を行う
。第５図は時間経過に伴う判断制御装置２側から見た静
電容量値変化を示す図である。第５図のレベルＡはタッ
チパネル装置１１を判断制御装置２と接続し、通常に動
作しているとき、判断制御装置２からタッチパネル装置
１側を見たときの容量値、レベルＢは指タッチしたとき
変化した容量値を示す。In FIG. 4, 1 is a capacitive touch panel, and 2 is a judgment control device, respectively. In the touch panel 1, 11 is a touch panel device, 12-1
5 is a changeover switch, and 16 is a point P where the touch panel device is located.
It shows the capacitance between and ground. In the judgment control device 2, 21 is an oscillator, 22 is a counter, 23 is an arithmetic control device such as a microcomputer, and 24 is a clock pulse. becomes larger than before. Switch 12 to select the coordinates of the point P that caused the change.
15, and the determination and control device 2 detects the coordinates. The detected coordinate values are transmitted to a host computer (not shown), which learns the touch coordinates and performs the next processing and control. FIG. 5 is a diagram showing changes in capacitance value as seen from the judgment control device 2 side over time. Level A in FIG. 5 is the capacitance value when the touch panel device 11 is connected to the judgment control device 2 and the touch panel device 1 side is viewed from the judgment control device 2 during normal operation, and level B is the capacitance value when the touch panel device 1 side is viewed from the judgment control device 2. It shows the capacitance value that changed when
［発明が解決しようとする問題点コ
第４図に示すタッチバネ、小装置１１が通常動作でなく
、判断制御装置２との間が何かの原因で接続外れとなっ
たとき、タッチパネル装置１１例の静電容量値は急減し
、第５図に示すようにレベルＣとなってしまう。そのと
きはタッチパネル１１に指タッチしても容量変化は検出
出来ない。そして判断制御装置２は単に容量変化の検出
不可能とするのみで、判断制御装置２は待機状態を続け
、無駄な電力消費をしていた。[Problems to be Solved by the Invention] When the touch spring shown in FIG. 4 and the small device 11 are not in normal operation and the connection with the judgment control device 2 is disconnected for some reason, The capacitance value suddenly decreases to level C as shown in FIG. At that time, no capacitance change can be detected even if the touch panel 11 is touched with a finger. Then, the judgment control device 2 simply makes it impossible to detect the capacitance change, and the judgment control device 2 continues in a standby state, resulting in wasteful power consumption.
またタッチパネル装置１１に対し指でなく、掌全体でタ
ッチする人がいる。そのときは判断制御゛装置２から見
たタッチパネル装置１１側の静電容量値はレベルＤに達
し、且つ変化を起こした部分は指タッチの場合より極め
て大きな範囲となり、座標をタッチのあった点の位置を
検出することができなかった。この場合も容量変化の検
出不可能とするのみであったから、装置の故障か、操作
不能となっているか、使用者にとってはっきり判らなか
った。Further, some people touch the touch panel device 11 not with their fingers but with their entire palms. At that time, the capacitance value on the touch panel device 11 side as seen from the judgment control device 2 reaches level D, and the area where the change has occurred is a much larger range than in the case of finger touch, and the coordinates are changed to the point where the touch occurred. could not detect the location. In this case as well, since only a change in capacitance could not be detected, it was unclear for the user whether the device was malfunctioning or inoperable.
本発明の目的は前述の欠点を改善し、簡易な構成でタッ
チパネル装置の異常状態を判断制御装置側で判定できる
ようにした座標入力装置を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to improve the above-mentioned drawbacks and provide a coordinate input device that has a simple configuration and allows a determination control device to determine an abnormal state of a touch panel device.
［問題点を解決するための手段］
第１図は本発明の原理構成を示す図である。第１図にお
いて、１は静電容量式タッチパネル、２は判断制御装置
を全体的に示すもの、１１はタッチパネル装置、２０は
判断制御装置２からタッチパネル１を見てその接続点と
接地間の静電容量、２３は演算制御装置例えばマイクロ
コンピュータ、２５は演算制御装置（マイクロコンピュ
ータ）と接続して使用される記憶装置を示す。[Means for Solving the Problems] FIG. 1 is a diagram showing the basic configuration of the present invention. In FIG. 1, 1 is a capacitive touch panel, 2 is an overall representation of the judgment control device, 11 is a touch panel device, and 20 is a static electricity between the connection point and ground when looking at the touch panel 1 from the judgment control device 2. A capacitance 23 indicates an arithmetic and control unit such as a microcomputer, and 25 indicates a storage device used in connection with the arithmetic and control unit (microcomputer).
静電容量式タッチパネル装置１１を使用し、該タッチパ
ネル装置１１にタッチしたときの座標を演算制御装置２
３に入力し、演算制御する座標入力装置において、本発
明は下記の構成としている。Using the capacitive touch panel device 11, the arithmetic control device 2 calculates the coordinates when the touch panel device 11 is touched.
The present invention has the following configuration in a coordinate input device that inputs data into the coordinate system 3 and performs arithmetic control.
即ち座標入力装置の演算制御装Ｗ２３に記憶装置ｉ２５
を接続し、該記憶装置２５にはタッチパネル１１を使用
するときに通常起こり得るタッチパネル装置１１側の静
電容量変化値を基礎とするしきい値を設定して格納する
ことである。That is, the storage device i25 is stored in the arithmetic and control unit W23 of the coordinate input device.
A threshold value based on a capacitance change value on the touch panel device 11 side that normally occurs when the touch panel device 11 is used is set and stored in the storage device 25.
［作用］
タッチパネル装置１１を通常の使用状態としたときミ起
こり得るタッチパネル装置１１側の静電容１２０の変化
値を基礎とし、その変化範囲より上下に若干の余裕を見
て、上側と下側のしきい値を作り、その値を記憶装置２
５に格納する。座標入力装置を使用中にタッチパネル装
置ｌｌ側の静電容Ｍ２０を測定し、記憶装置内のしきい
値と比較することにより、若ししきい値を超えて大きい
値または小さい値となったとき、演算制御装置２３は座
標入力装置としてその状態が異常であると判断する。[Function] Based on the change value of the capacitance 120 on the touch panel device 11 side that may occur when the touch panel device 11 is in normal use, and with a slight margin above and below the change range, the upper and lower sides are calculated. Create a threshold value and save the value to storage device 2.
Store in 5. By measuring the capacitance M20 on the touch panel device II side while using the coordinate input device and comparing it with the threshold value in the storage device, if the value exceeds the threshold value and becomes a large value or a small value, The arithmetic and control device 23, as a coordinate input device, determines that the state is abnormal.
［実施例］
第２図は本発明の実施例として、しきい値の選定例を示
す図、第３図は第１図中の記憶装置２５におけるデータ
の例を示す図である。第２図において、レベルＤはタッ
チパネル装置に掌でタッチしたとき検出した静電容量値
、レベルＥは上側しきい値、レベルＦは下側しきい値を
示す。第２図において他のレベルは第５図の場合と同一
である。[Example] FIG. 2 is a diagram showing an example of threshold selection as an example of the present invention, and FIG. 3 is a diagram showing an example of data in the storage device 25 in FIG. 1. In FIG. 2, level D indicates the capacitance value detected when the touch panel device is touched with the palm of the hand, level E indicates the upper threshold, and level F indicates the lower threshold. The other levels in FIG. 2 are the same as in FIG. 5.
第３図において、アドレス２５−１にはレベルＥのしき
い値ヲ、アドレス２５−２にはレベルＦのしきい値を、
アドレス２５−３にはレベルＡのしきい値をそれぞれ格
納して置く。In FIG. 3, a level E threshold value is placed at address 25-1, a level F threshold value is placed at address 25-2,
Each level A threshold value is stored at address 25-3.
このようにしたため、演算制御装置２３においては、静
電容量値２０の測定を行ったとき、記憶装置２５のしき
い値レベルとの比較を行い、レベル８以上を検出したと
き、異常であることを的確に判断して表示する。Therefore, when the arithmetic and control unit 23 measures the capacitance value 20, it compares it with the threshold level of the storage device 25, and if it detects a level 8 or higher, it indicates that there is an abnormality. accurately judge and display.
［発明の効果コ
このようにして本発明によると、簡易な構成であっても
、タッチパネル装置側の静電容量値が異常レベルとなっ
たことを検出できるから、使用者に異常であることを的
確に知らせることが出来る。[Effects of the Invention] Thus, according to the present invention, even with a simple configuration, it is possible to detect when the capacitance value on the touch panel device side has reached an abnormal level, so that it is possible to notify the user that there is an abnormality. Can be informed accurately.
またタッチパネル装置として常に指タッチによる正確な
座標入力が可能となる。Furthermore, as a touch panel device, accurate coordinate input can always be made by finger touch.
第１図は本発明の原理構成を示す図、
第２図は本発明の実施例としてしきい値の選定例を説明
するための図、
第３図は第２図に示すしきい値を格納する記憶装置を示
す図、
第４図は従来の座標入力装置の構成を示す図、第５図は
第４図における容量値の変化例を示す図である。
１゛・・−静電容量式タッチパネル
２−・・判断制御装置
１１・・−タッチパネル装置
２０〜・−タッチパネル装置側から見た静電容量２３・
−・演算制御装置
２５−記憶装置
特許出願人 富士通株式会社
代 理 人 弁理士 鈴木栄祐
本翌明の原理構成口
第１図
しきい値＆定例を示す図
Ｗｈ２図
実施例図
第３ｒｙ！ＩFigure 1 is a diagram showing the principle configuration of the present invention. Figure 2 is a diagram for explaining an example of threshold selection as an embodiment of the present invention. Figure 3 stores the threshold values shown in Figure 2. FIG. 4 is a diagram showing the configuration of a conventional coordinate input device, and FIG. 5 is a diagram showing an example of a change in the capacitance value in FIG. 4. 1゛...-Capacitive touch panel 2--Judgment control device 11...-Touch panel device 20---Capacitance 23 as seen from the touch panel device side
- Arithmetic control unit 25 - Storage device Patent applicant Fujitsu Ltd. Agent Patent attorney Eisuke Suzuki The next day's principle structure mouth Figure 1 Figure showing threshold & constant example Wh2 Figure Embodiment Figure 3ry! I
Claims (1)
チパネル装置（１１）にタッチしたときの座標を演算制
御装置（２３）に入力し、演算制御する座標入力装置に
おいて、 該座標入力装置の演算制御装置（２３）に記憶装置（２
５）を接続し、 該記憶装置（２５）にはタッチパネル装置（１１）を使
用するときに通常起こり得るタッチパネル装置（１１）
側の静電容量の変化値を基礎とするしきい値を設定して
格納し、 座標入力装置を使用中に、タッチパネル装置（１１）側
の静電容量が前記しきい値を超える変化が発生したとき
、座標入力装置の状態が異常であると判断すること を特徴とする座標入力装置。[Claims] A coordinate input device that uses a capacitive touch panel device (11) and inputs coordinates when the touch panel device (11) is touched to an arithmetic control device (23) for arithmetic control, A storage device (2) is provided in the arithmetic and control device (23) of the coordinate input device.
5), and the storage device (25) has a touch panel device (11) that normally occurs when using the touch panel device (11).
A threshold value based on the change value of the capacitance on the touch panel device (11) side is set and stored, and while the coordinate input device is in use, a change in capacitance on the touch panel device (11) side that exceeds the threshold value occurs. A coordinate input device characterized in that the state of the coordinate input device is determined to be abnormal when this occurs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61302403A JP2633845B2 (en) | 1986-12-18 | 1986-12-18 | Coordinate input device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61302403A JP2633845B2 (en) | 1986-12-18 | 1986-12-18 | Coordinate input device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63155222A true JPS63155222A (en) | 1988-06-28 |
| JP2633845B2 JP2633845B2 (en) | 1997-07-23 |
Family
ID=17908494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61302403A Expired - Lifetime JP2633845B2 (en) | 1986-12-18 | 1986-12-18 | Coordinate input device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2633845B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007286814A (en) * | 2006-04-14 | 2007-11-01 | Alps Electric Co Ltd | Input device |
| JP2011086003A (en) * | 2009-10-13 | 2011-04-28 | Sony Corp | Device and method for inputting information, information input/output device, information input program, and electronic apparatus |
| JP2013058224A (en) * | 2012-10-22 | 2013-03-28 | Seiko Epson Corp | Portable information apparatus, electronic book, program, and information storage medium |
| JP2013114326A (en) * | 2011-11-25 | 2013-06-10 | Kyocera Display Corp | Touch panel device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60157621A (en) * | 1984-01-26 | 1985-08-17 | Pentel Kk | Tablet input device |
| JPS60229132A (en) * | 1984-04-26 | 1985-11-14 | Asahi Glass Co Ltd | Touch sensor |
| JPS61827A (en) * | 1984-01-26 | 1986-01-06 | Pentel Kk | Tablet input device |
-
1986
- 1986-12-18 JP JP61302403A patent/JP2633845B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60157621A (en) * | 1984-01-26 | 1985-08-17 | Pentel Kk | Tablet input device |
| JPS61827A (en) * | 1984-01-26 | 1986-01-06 | Pentel Kk | Tablet input device |
| JPS60229132A (en) * | 1984-04-26 | 1985-11-14 | Asahi Glass Co Ltd | Touch sensor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007286814A (en) * | 2006-04-14 | 2007-11-01 | Alps Electric Co Ltd | Input device |
| JP2011086003A (en) * | 2009-10-13 | 2011-04-28 | Sony Corp | Device and method for inputting information, information input/output device, information input program, and electronic apparatus |
| JP2013114326A (en) * | 2011-11-25 | 2013-06-10 | Kyocera Display Corp | Touch panel device |
| JP2013058224A (en) * | 2012-10-22 | 2013-03-28 | Seiko Epson Corp | Portable information apparatus, electronic book, program, and information storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2633845B2 (en) | 1997-07-23 |
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