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P.133: 3D Multi‐Touch System by Using Coded Optical Barrier on Embedded Photo‐Sensors
Author(s) -
Fang HsuanHe,
Wang GuoZhen,
Chang ChiaWei,
Huang YiPai
Publication year - 2013
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/j.2168-0159.2013.tb06536.x
Subject(s) - computer science , software , range (aeronautics) , mobile device , embedded system , computer hardware , engineering , operating system , aerospace engineering
Limited by construction complexity, bare finger touch systems are not ready to be used on mobile devices. Hence, we proposed a system using coded optical barrier with less hardware and software complexity; based on the construction, touch algorithm is programed to obtained 3D location (x,y,z) of input(s). Finally, our concept was implemented on a 4‐inch panel. The system was able to sense up to 3 touch inputs simultaneously within 35 mm working range.