DE68924514D1 - Verfahren zur Ausblendung der Aberrationen der reflektierenden Oberfläche eines laserberührungsempfindlichen Bildschirms. - Google Patents
Verfahren zur Ausblendung der Aberrationen der reflektierenden Oberfläche eines laserberührungsempfindlichen Bildschirms.Info
- Publication number
- DE68924514D1 DE68924514D1 DE68924514T DE68924514T DE68924514D1 DE 68924514 D1 DE68924514 D1 DE 68924514D1 DE 68924514 T DE68924514 T DE 68924514T DE 68924514 T DE68924514 T DE 68924514T DE 68924514 D1 DE68924514 D1 DE 68924514D1
- Authority
- DE
- Germany
- Prior art keywords
- aberrations
- masking
- laser
- reflective surface
- sensitive screen
- 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.)
- Expired - Fee Related
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
- G06F3/0423—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 using sweeping light beams, e.g. using rotating or vibrating mirror
-
- 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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
- G06F3/04186—Touch location disambiguation
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)
- Position Input By Displaying (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US25160488A | 1988-09-30 | 1988-09-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68924514D1 true DE68924514D1 (de) | 1995-11-16 |
DE68924514T2 DE68924514T2 (de) | 1996-06-05 |
Family
ID=22952659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68924514T Expired - Fee Related DE68924514T2 (de) | 1988-09-30 | 1989-08-16 | Verfahren zur Ausblendung der Aberrationen der reflektierenden Oberfläche eines laserberührungsempfindlichen Bildschirms. |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0362109B1 (de) |
JP (1) | JPH0731573B2 (de) |
DE (1) | DE68924514T2 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5248856A (en) * | 1992-10-07 | 1993-09-28 | Microfield Graphics, Inc. | Code-based, electromagnetic-field-responsive graphic data-acquisition system |
JP3934846B2 (ja) | 2000-03-06 | 2007-06-20 | 株式会社リコー | 座標入力/検出装置、電子黒板システム、受光素子の位置ズレ補正方法及び記憶媒体 |
WO2001079981A1 (fr) | 2000-04-14 | 2001-10-25 | Fujitsu Limited | Detecteur de position optique |
US20070024584A1 (en) * | 2005-08-01 | 2007-02-01 | Chee-Heng Wong | System and method for fault detection and recovery for an optical input area |
JP2006138867A (ja) * | 2005-12-28 | 2006-06-01 | Fujitsu Ltd | 光学式位置検出装置及び記録媒体 |
CN101546235B (zh) * | 2008-03-28 | 2011-07-27 | 旭丽电子(广州)有限公司 | 触控面板模块及决定触控面板上压触点位置的方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4645920A (en) * | 1984-10-31 | 1987-02-24 | Carroll Touch, Inc. | Early fault detection in an opto-matrix touch input device |
AU4907185A (en) * | 1984-11-08 | 1986-05-15 | Spacelabs, Inc. | Radiant beam co-ordinate detector system |
US4762990A (en) * | 1985-10-21 | 1988-08-09 | International Business Machines Corporation | Data processing input interface determining position of object |
JPS62127929A (ja) * | 1985-11-29 | 1987-06-10 | Hitachi Ltd | 座標入力装置 |
-
1989
- 1989-08-11 JP JP20710489A patent/JPH0731573B2/ja not_active Expired - Lifetime
- 1989-08-16 DE DE68924514T patent/DE68924514T2/de not_active Expired - Fee Related
- 1989-08-16 EP EP89480125A patent/EP0362109B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0362109B1 (de) | 1995-10-11 |
JPH02116918A (ja) | 1990-05-01 |
EP0362109A2 (de) | 1990-04-04 |
EP0362109A3 (en) | 1990-09-05 |
JPH0731573B2 (ja) | 1995-04-10 |
DE68924514T2 (de) | 1996-06-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |