JPS5979343A - Finger-touch input system - Google Patents
Finger-touch input systemInfo
- Publication number
- JPS5979343A JPS5979343A JP57189720A JP18972082A JPS5979343A JP S5979343 A JPS5979343 A JP S5979343A JP 57189720 A JP57189720 A JP 57189720A JP 18972082 A JP18972082 A JP 18972082A JP S5979343 A JPS5979343 A JP S5979343A
- Authority
- JP
- Japan
- Prior art keywords
- light
- light source
- display surface
- finger
- output
- 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
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
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
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)
- Digital Computer Display Output (AREA)
- Position Input By Displaying (AREA)
- Electronic Switches (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は表示装置に関し、特に表示装置を外部から制御
する方式のうち指触入力方式に関するものでめる。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display device, and particularly relates to a finger touch input method among methods for controlling a display device from the outside.
従来、指触人力又はタッチセンサは第１図の如くに発光
源１１−０〜１１−ｎに対応させて受光素子１３−０〜
１３−ｎを、発光源１２−ｏ〜１２−ｍに対応させて受
光素子１４−ｏ〜１４−ｍｆ、それぞれ表示面上に配列
させ指等の遮光物１５を表示面上に接触させることにょ
シ光を断として受光が断となる素子を検知して遮光物１
５の表示面上における位置を検知していた。この方式に
おいて発光源からの光は時間的にたとえば１１−ｏ〜１
１−ｎおよび１２−ｏ〜１２−ｍを順次切替えて送出す
る方式と常時すべての発光源から光を送出する方式とが
あるが、従来光の送出を特別の変調を加えず、必要な時
間連続的に行なっていた。Conventionally, a finger touch sensor or a touch sensor has light receiving elements 13-0 to 13-n corresponding to light emitting sources 11-0 to 11-n as shown in FIG.
13-n, light receiving elements 14-o to 14-mf are arranged on the display surface in correspondence with the light emitting sources 12-o to 12-m, and a light shielding object 15 such as a finger is brought into contact with the display surface. Detects the element whose light reception is cut off when the light is cut off.
5 on the display screen. In this method, the light from the light source is e.g.
There is a method in which light is sent out by switching sequentially from 1-n and 12-o to 12-m, and a method in which light is sent out from all light emitting sources at all times. It was done continuously.
したがって第２図に示す第１図のＡ−Ａ’断面図の光２
５又は第３図に示す第１図の部分図の光３４に如く外部
からの光が受光素子に侵入し第３図に示す光遮断物３３
で光を断としても外部からの光３４かある場合、目的と
する光遮断の検出を誤る欠点がめった。Therefore, the light 2 in the AA' cross-sectional view of FIG. 1 shown in FIG.
5 or the light from the outside enters the light receiving element as shown in the partial diagram of FIG. 1 shown in FIG.
Even if the light is cut off, if there is light 34 from the outside, there is a problem in that the intended light cutoff is often incorrectly detected.
本発明の目的は光源から送出する光に特定の変調を加え
、受光素子では、その変調された光のみを検出復調する
ことによシ、目的外の外部からの光による誤検出を解決
した指触人力方式を提供することにある。The purpose of the present invention is to apply a specific modulation to the light emitted from the light source, and the light receiving element detects and demodulates only the modulated light, thereby solving the problem of false detection caused by unintended external light. The purpose is to provide a hands-on method.
即ち本発明は、情報を表示する表示面の一方の端に表示
面にＧって複数の光源を線状に配列し、該表示面上、前
記一方の端に相対する他方の端に複数の受光素子を線状
に配列し、前記光源から発した光を表示面上の任意の場
所に接触させた指等の物体によって遮えぎシ、受光素子
中人力光が断となった受光素子の配列中の位置を知るこ
とによシ、光示面上の前記光源と受光素子の配列対のど
の位置に対応しているかを検知する方式において、光源
から発する光に特定の変調を加え、受光素子では該特定
の変調を加えられた光のみを受光検出する。That is, in the present invention, a plurality of light sources are linearly arranged on one end of the display surface for displaying information, and a plurality of light sources are arranged on the other end of the display surface opposite to the one end on the display surface. Light-receiving elements are arranged in a line, and the light emitted from the light source is blocked by an object such as a finger touching an arbitrary place on the display surface, and the light-receiving elements are cut off from human power. By knowing the position in the array, in the method of detecting which position of the array pair of the light source and the light receiving element corresponds on the light display screen, a specific modulation is applied to the light emitted from the light source, and the light is detected. The element receives and detects only the light that has been subjected to the specific modulation.
次に本発明の実施例について図面を参照して説明する。Next, embodiments of the present invention will be described with reference to the drawings.
第４図は配列された光源すべてから常時光を送出する場
合の実施例である。４１．４４は変調信号発生器でめシ
、４２，４５は４３．４６の光源の送出光を変調する変
調器でめる。ここで４１．４４からはそれぞれ４３．４
６の光源の個々に対応して異なる変調信号発生する。例
えば４３−皿光源から送出される光の変調信号は他のい
ずれの光源の光に加えられた変調信号とも異なる。４８
．５２は復調器であシ、それぞれ４７，５１の受光素子
にて受けた変調信号を復調する。４９，５３は相関器あ
るいはデコーダであシ、それぞれの受光素子に対応し受
光素子個々に割当られた変調信号のみを検出する機能を
持っている。５０．５４は相関検出出力であシ表示面上
で光を遮断されない場曾は出力を発生する。判定部５５
は５０．５４の出力からいずれかの出力が無いかどうか
判足し、もし出力が無い部分が発生した場合は、その部
分によシ光を遮断された表示面上の座標を決定し５６へ
出力する。FIG. 4 shows an embodiment in which light is constantly emitted from all the arranged light sources. 41.44 is a modulation signal generator, and 42 and 45 are modulators for modulating the light emitted from the light source 43.46. Here, from 41.44 to 43.4 respectively.
Different modulation signals are generated corresponding to each of the six light sources. For example, the modulation signal of the light emitted from a 43-dish light source is different from the modulation signal applied to the light of any other light source. 48
．． A demodulator 52 demodulates the modulated signals received by the light receiving elements 47 and 51, respectively. Reference numerals 49 and 53 are correlators or decoders, which correspond to the respective light receiving elements and have a function of detecting only the modulated signal assigned to each light receiving element. Reference numerals 50 and 54 are correlation detection outputs, which generate outputs when light is not blocked on the display surface. Judgment section 55
determines whether there is any output from the outputs of 50.54, and if a part with no output occurs, determines the coordinates on the display surface where light is blocked by that part and outputs it to 56. do.
第５図は光源から送出する光を時間的に走査する方式の
例でめる。５０１，５０４は変調信号発生器であるが前
記の実施例の如き光源毎に変調信号を変えることなく一
定の変調信号である。５０２．５０５は光源からの光送
出を順次切替える機能と光を送出する光源の変調器５０
３又は５０６へ５０１又は５０４の変調信号を通過させ
る機能を持っている。５０７．５１０は変調信号の復調
器であシ５０８．５１１は論理和（ＯＲ回路）的機能を
持つ回路であｐ、５０９，５１２は復調された信号と変
調信号との相関器又はデコーダである。FIG. 5 shows an example of a method in which light emitted from a light source is temporally scanned. Reference numerals 501 and 504 indicate modulation signal generators, which generate a constant modulation signal without changing the modulation signal for each light source as in the previous embodiment. 502.505 is a light source modulator 50 that has a function of sequentially switching the light output from the light source and a light source modulator 50 that transmits light.
It has a function of passing the modulated signal of 501 or 504 to 3 or 506. 507.510 is a demodulator for the modulated signal, 508.511 is a circuit with a logical sum (OR circuit) function, and 509 and 512 are correlators or decoders for the demodulated signal and the modulated signal. .
５１３は５０９及び５１２の出力から表示面上での光遮
断位置の座標を決定する回路であシ５１４は決定された
座標信号の出力を示す。変調信号にはバー力コード、擬
似ランダム符号等自己相関系数の關い符号を利用すると
外部からの不要光の除去効果が高まる。513 is a circuit that determines the coordinates of the light blocking position on the display screen from the outputs of 509 and 512; 514 indicates the output of the determined coordinate signal. If a code with a high autocorrelation coefficient, such as a bar code or a pseudo-random code, is used for the modulation signal, the effect of removing unnecessary light from the outside will be enhanced.
本発明は以上説明したように光源から送出する光に特定
の変調を加え受光側では該特定の変調信号を相関検出す
ることによシ目的以外の外部から混入する光による誤検
出を除去する効果がある。As explained above, the present invention has the effect of eliminating false detection due to light mixed in from outside for purposes other than that by applying a specific modulation to the light emitted from the light source and detecting the correlation of the specific modulation signal on the light receiving side. There is.
第１図は従来の方式を示した図、第２図、第３図は外部
からの侵入光の影響を示す図でアシ２５．３４が外来光
を示す。第４図は本発明の実施例のうち光源の送出光を
走査しない方式を示す１っであシ、第５図は本発明の実
施例のうち光源の送出光を走査する方式の１つを示す図
である。
４１．４４・・・・・・変調信号発生器、４２〜４５・
・・・・・変調器、４３．４６・・・・・・光源、４７
．５１・・・・・・受光素子、４８．５２・・・・・・
復調器、４９．５３・・・・・・相関器又はデコーダ、
５５・・・・・・判定部。
、・′−−−、
ユ１゛１FIG. 1 shows the conventional system, and FIGS. 2 and 3 show the influence of intruding light from the outside, with reeds 25 and 34 indicating external light. FIG. 4 shows one of the embodiments of the present invention in which the light emitted from the light source is not scanned, and FIG. 5 shows one of the embodiments of the present invention in which the light emitted from the light source is scanned. FIG. 41.44...Modulation signal generator, 42-45.
...Modulator, 43.46 ...Light source, 47
．． 51... Light receiving element, 48.52...
demodulator, 49.53... correlator or decoder,
55... Judgment section. ,・'----, Yu1゛1
Claims (1)
の光源を線状に配列し、該表示面上前記一方の端に相対
する他方の端に複数の受光素子を線状に配列し、前記光
源から発した光を表示面上の任意の場所に接触させた指
又は光を通過させない物質によって週えぎシ、受光素子
に入力されるべき光が断となることによシ、配列されて
いる受光素子中人力光が断となった受光素子の配列中の
位置を知ることによシ、表示面上に接触された指又は光
遮断物体の位置が表示面上の前記光源と受光素子の配列
対のどの位置に対応しているかを検知する方式において
、光源から発する光に特定の変調を加え、受光素子は該
特定の変調を加えられた光のみを受光検出することを特
徴とする指触人力方式A plurality of light sources are arranged linearly at one end of a display surface for displaying information in a direction opposite to the display surface, and a plurality of light receiving elements are arranged linearly at the other end of the display surface opposite to said one end. When the light that should be input to the light receiving element is cut off by a finger or a substance that does not allow light to pass through, the light emitted from the light source is brought into contact with an arbitrary place on the display surface. By knowing the position of the light-receiving element in the array where the human power light was cut off among the arrayed light-receiving elements, the position of the finger touching the display surface or the light blocking object can be determined from the light source on the display surface. In this method, a specific modulation is applied to the light emitted from the light source, and the light receiving element receives and detects only the light that has been subjected to the specific modulation. Characteristic finger-touch manual method
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57189720A JPS5979343A (en) | 1982-10-28 | 1982-10-28 | Finger-touch input system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57189720A JPS5979343A (en) | 1982-10-28 | 1982-10-28 | Finger-touch input system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5979343A true JPS5979343A (en) | 1984-05-08 |
Family
ID=16246059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57189720A Pending JPS5979343A (en) | 1982-10-28 | 1982-10-28 | Finger-touch input system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5979343A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0181612A2 (en) * | 1984-11-08 | 1986-05-21 | Spacelabs, Inc. | Radiant beam coordinate detector system |
| JPS61120234A (en) * | 1984-11-08 | 1986-06-07 | スペースラブズ、インコーポレイテツド | Cross radiation beam x-y coordinate detecting encoding system |
| JPS6220212A (en) * | 1985-07-19 | 1987-01-28 | 松下電器産業株式会社 | Infrared touch switch |
| US4792247A (en) * | 1986-07-31 | 1988-12-20 | Brother Kogyo Kabushiki Kaisha | Armature supporting structure of a print head |
| JPH0224638U (en) * | 1988-08-02 | 1990-02-19 | ||
| EP0364884A2 (en) * | 1988-10-17 | 1990-04-25 | Tektronix Inc. | Detection system for optical touch panel |
| JPH0594255A (en) * | 1991-03-28 | 1993-04-16 | Minato Electron Kk | Optical touch panel utilizing modulated light beam |
| JPH07104753B2 (en) * | 1984-10-31 | 1995-11-13 | アンプ インコーポレーテッド | Optmatrix touch input device |
| GB2607548A (en) * | 2018-05-18 | 2022-12-07 | 1004335 Ontario Inc Carrying On Business As A D Metro | Optical touch sensor devices and systems |
| US11625128B2 (en) | 2020-04-03 | 2023-04-11 | 1004335 Ontario Inc. | Optical touch sensor systems and optical detectors with noise mitigation |
-
1982
- 1982-10-28 JP JP57189720A patent/JPS5979343A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07104753B2 (en) * | 1984-10-31 | 1995-11-13 | アンプ インコーポレーテッド | Optmatrix touch input device |
| JPS61120234A (en) * | 1984-11-08 | 1986-06-07 | スペースラブズ、インコーポレイテツド | Cross radiation beam x-y coordinate detecting encoding system |
| EP0181612A2 (en) * | 1984-11-08 | 1986-05-21 | Spacelabs, Inc. | Radiant beam coordinate detector system |
| JPH0677421B2 (en) * | 1985-07-19 | 1994-09-28 | 松下電器産業株式会社 | Infrared touch switch |
| JPS6220212A (en) * | 1985-07-19 | 1987-01-28 | 松下電器産業株式会社 | Infrared touch switch |
| US4792247A (en) * | 1986-07-31 | 1988-12-20 | Brother Kogyo Kabushiki Kaisha | Armature supporting structure of a print head |
| JPH0224638U (en) * | 1988-08-02 | 1990-02-19 | ||
| EP0364884A3 (en) * | 1988-10-17 | 1990-09-05 | Tektronix Inc. | Detection system for optical touch panel |
| EP0364884A2 (en) * | 1988-10-17 | 1990-04-25 | Tektronix Inc. | Detection system for optical touch panel |
| JPH0594255A (en) * | 1991-03-28 | 1993-04-16 | Minato Electron Kk | Optical touch panel utilizing modulated light beam |
| GB2607548A (en) * | 2018-05-18 | 2022-12-07 | 1004335 Ontario Inc Carrying On Business As A D Metro | Optical touch sensor devices and systems |
| US11893188B2 (en) | 2018-05-18 | 2024-02-06 | 1004335 Ontario Inc. | Optical touch sensor devices and systems |
| US11625128B2 (en) | 2020-04-03 | 2023-04-11 | 1004335 Ontario Inc. | Optical touch sensor systems and optical detectors with noise mitigation |
| US11630536B2 (en) | 2020-04-03 | 2023-04-18 | 1004335 Ontario Inc. | Optical touch sensor systems and optical detectors with noise mitigation |
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