EP 2307949 A2 20110413 - INTERACTIVE DISPLAY DEVICE AND METHOD, USING A DETECTION CAMERA AND OPTICAL POINTER
Title (en)
INTERACTIVE DISPLAY DEVICE AND METHOD, USING A DETECTION CAMERA AND OPTICAL POINTER
Title (de)
EINRICHTUNG UND VERFAHREN ZUR INTERAKTIVEN ANZEIGE UNTER VERWENDUNG EINER DETEKTIONSKAMERA UND EINES OPTISCHEN ZEIGERS
Title (fr)
DISPOSITIF ET PROCÈDE DE VISUALISATION INTERACTIF UTILISANT UNE CAMÉRA DE DÉTECTION ET UN POINTEUR OPTIQUE
Publication
Application
Priority
- FR 2009051313 W 20090703
- FR 0854557 A 20080704
Abstract (en)
[origin: WO2010001072A2] The invention relates to an interactive display device and method. A video projector (4) projects an image on a screen (24). An optical pointer (26) includes a mouse click signal input button and a light source (33) that emits a light beam for pointing to the screen to form a light mark (15). A detection camera (11) acquires an image from the screen and detects an image from the light mark. A processing system (27) calculates the position of the light mark (15) in the detected image. According to the invention, the optical pointer (26) includes: a contact or proximity detector capable of detecting a contact between one end of the optical pointer (26) and the screen (24) and generating a light mark presence signal; and moreover a radio transmitter (29) capable of transmitting a light mark presence signal to a processing system (27). The treatment system (27) compares the respective signals for detecting a light mark and light mark presence to deduce therefrom a validation signal for said light mark.
IPC 8 full level
G06F 3/042 (2006.01); G06F 3/033 (2006.01); G06F 3/0354 (2013.01)
CPC (source: EP US)
G06F 3/03545 (2013.01 - EP US); G06F 3/0425 (2013.01 - EP US)
Citation (search report)
See references of WO 2010001072A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
WO 2010001072 A2 20100107; WO 2010001072 A3 20101104; EP 2307949 A2 20110413; FR 2933511 A1 20100108; US 2011109554 A1 20110512
DOCDB simple family (application)
FR 2009051313 W 20090703; EP 09772754 A 20090703; FR 0854557 A 20080704; US 200913002556 A 20090703