Title :
3D stylus and pressure sensing system for capacitive touch panel
Author :
Lin, Chih-Lung ; Li, Chia-Sheng ; Chang, Yi-Ming ; Hung, Chia-Che ; Lin, Alvin
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, China
Abstract :
This work presents a new simple passive 3D stylus for capacitive touch panels that detects the x,y-directional position and z-directional strength using a peak calibration algorithm. The proposed algorithm can successfully detect the touch information while eliminating noise, ultimately leading smoother and faster tracking. Analysis results of an experiment on a touch panel demonstrate the effectiveness of the proposed stylus system.
Keywords :
calibration; capacitive sensors; interference suppression; pressure sensors; touch sensitive screens; capacitive touch panels; noise elimination; passive 3D stylus; peak calibration algorithm; pressure sensing system; touch information detection; z-directional strength; Algorithm design and analysis; Calibration; Force; Kalman filters; Materials; Sensors; Three dimensional displays;
Conference_Titel :
Consumer Electronics (ICCE), 2012 IEEE International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4577-0230-3
DOI :
10.1109/ICCE.2012.6161835
