WO2003017188A3 - Vorrichtung zur positionserkennung eines zeigeobjektes - Google Patents

Vorrichtung zur positionserkennung eines zeigeobjektes Download PDF

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Publication number
WO2003017188A3
WO2003017188A3 PCT/DE2002/002437 DE0202437W WO03017188A3 WO 2003017188 A3 WO2003017188 A3 WO 2003017188A3 DE 0202437 W DE0202437 W DE 0202437W WO 03017188 A3 WO03017188 A3 WO 03017188A3
Authority
WO
WIPO (PCT)
Prior art keywords
screen
indicator object
change
light beam
detector
Prior art date
Application number
PCT/DE2002/002437
Other languages
English (en)
French (fr)
Other versions
WO2003017188A2 (de
Inventor
Gerhard Bock
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of WO2003017188A2 publication Critical patent/WO2003017188A2/de
Publication of WO2003017188A3 publication Critical patent/WO2003017188A3/de

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
    • G06F3/0425—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected
    • 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

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)
  • Multimedia (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Position Input By Displaying (AREA)

Abstract

Die Erfindung betrifft eine Vorrichtung (10) zur Positionserkennung wenigstens eines Zeigeobjektes (11) auf einem Bildschirm (12). Die Erfindung sieht vor, dass eine Lichtquelle (14) einen Lichtstrahl (16) in Richtung des Bildschirms (12) emittiert und ein Detektor (15) das von dort reflektierte Licht (16') misst, wobei der Detektor (15) eine durch das den Bildschirm (12) berührende Zeigeobjekt (11) hervorgerufene Änderung der Reflektion detektiert und eine Auswerteeinrichtung (17) daraus Ortskoordinaten des Zeigeobjekts (11) ermittelt. Die Lichtquelle (14) ist als Laserprojektor ausgebildet und der von ihr emittierte Laserlichtstrahl (16) tastet den Bildschirm (12) ortsaufgelöst ab. Die Auswerteeinrichtung (17) ermittelt die Position des Zeigeobjektes (11), indem sie bei einer von dem Detektor (15) gemessenen Intensitätsänderung des reflektierten Strahls (16') die mit dem Zeitpunkt der Intensitätsänderung korrelierte Position des Auftreffpunktes des Lichtstrahls (16) auf dem Bildschirm (12) aus dem zeitabhängigen Abtastverhalten des emittierten Laserlichtstrahls (16) bestimmt.
PCT/DE2002/002437 2001-08-10 2002-07-04 Vorrichtung zur positionserkennung eines zeigeobjektes WO2003017188A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10139386.5 2001-08-10
DE10139386 2001-08-10

Publications (2)

Publication Number Publication Date
WO2003017188A2 WO2003017188A2 (de) 2003-02-27
WO2003017188A3 true WO2003017188A3 (de) 2004-01-29

Family

ID=7695067

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2002/002437 WO2003017188A2 (de) 2001-08-10 2002-07-04 Vorrichtung zur positionserkennung eines zeigeobjektes

Country Status (1)

Country Link
WO (1) WO2003017188A2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005293090A (ja) * 2004-03-31 2005-10-20 Namco Ltd 位置検出システム、ゲームシステム及び位置検出システムの制御方法
DE102004044999A1 (de) * 2004-09-16 2006-04-06 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Eingabesteuerung für Geräte
JP2014145813A (ja) * 2013-01-28 2014-08-14 Funai Electric Co Ltd プロジェクタ

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5726685A (en) * 1994-06-30 1998-03-10 Siemens Aktiengesellschaft Input unit for a computer
FR2756077A1 (fr) * 1996-11-19 1998-05-22 Opto System Ecran tactile et dispositif de visualisation utilisant cet ecran tactile
US6061177A (en) * 1996-12-19 2000-05-09 Fujimoto; Kenneth Noboru Integrated computer display and graphical input apparatus and method
JP2000222127A (ja) * 1999-01-29 2000-08-11 Brother Ind Ltd 投影表示装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5726685A (en) * 1994-06-30 1998-03-10 Siemens Aktiengesellschaft Input unit for a computer
FR2756077A1 (fr) * 1996-11-19 1998-05-22 Opto System Ecran tactile et dispositif de visualisation utilisant cet ecran tactile
US6061177A (en) * 1996-12-19 2000-05-09 Fujimoto; Kenneth Noboru Integrated computer display and graphical input apparatus and method
JP2000222127A (ja) * 1999-01-29 2000-08-11 Brother Ind Ltd 投影表示装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 11 3 January 2001 (2001-01-03) *

Also Published As

Publication number Publication date
WO2003017188A2 (de) 2003-02-27

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