EP 2972693 A4 20161207 - ACTIVE OPTICAL STYLUS AND SENSOR
Title (en)
ACTIVE OPTICAL STYLUS AND SENSOR
Title (de)
AKTIVER OPTISCHER STIFT UND SENSOR
Title (fr)
STYLET ET CAPTEUR OPTIQUES ACTIFS
Publication
Application
Priority
- US 201361798708 P 20130315
- US 2014030690 W 20140317
Abstract (en)
[origin: CN105144041A] An optical input position locating device includes a sheet material having a light transmitting media and a plurality of direction changing particles suspended within the light transmitting media. The direction changing particles are selected to output light in a different direction than an optical input received by the media. Light sensors are provided along at least a first edge of the sheet material. Each of the light sensors is associated with an angular filter that restricts light from reaching the associated light sensor, and the light sensors being adapted to produce a signal in response to receiving the redirected light. A position processor connected to the plurality of light sensors is adapted to use the signals produced by plurality of light sensors to determine a position of the optical input.
IPC 8 full level
G06F 3/03 (2006.01); G06F 3/0354 (2013.01); G06F 3/041 (2006.01); G06F 3/042 (2006.01)
CPC (source: EP US)
G06F 3/0317 (2013.01 - US); G06F 3/03545 (2013.01 - EP); G06F 3/0416 (2013.01 - EP US); G06F 3/0421 (2013.01 - EP); G06F 3/0428 (2013.01 - EP)
Citation (search report)
- [X] US 2009322677 A1 20091231 - LEE YEON-KEUN [KR], et al
- See references of WO 2014145855A1
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
DOCDB simple family (publication)
CN 105144041 A 20151209; EP 2972693 A1 20160120; EP 2972693 A4 20161207; HK 1220782 A1 20170512
DOCDB simple family (application)
CN 201480014947 A 20140317; EP 14763648 A 20140317; HK 16108647 A 20160720