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Projected‐Capacitive Touch Systems from the Controller Point of View
Author(s) -
Wang Tim,
Blankenship Tim
Publication year - 2011
Publication title -
information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.182
H-Index - 20
eISSN - 2637-496X
pISSN - 0362-0972
DOI - 10.1002/j.2637-496x.2011.tb00363.x
Subject(s) - capacitive sensing , controller (irrigation) , computer science , focus (optics) , point (geometry) , signal (programming language) , electrical engineering , computer hardware , engineering , mathematics , physics , optics , agronomy , geometry , biology , programming language
Projected‐capacitive touch has grown more than 100‐fold in revenue since the iPhone was introduced in 2007, and it shows no signs of slowing down. This article describes many of the design and application challenges that must be faced when integrating projected‐capacitive touch into a device, with a particular focus on the importance of the controller's signal‐to‐noise ratio.