DocumentCode
2124072
Title
Application of 4k-order Hadamard matrices to simultaneous driving capacitive touch systems
Author
Jong Kang Park ; Chang-Ju Lee ; Do-Yeon Kim ; Jung-Hoon Chun ; Jong Tae Kim
Author_Institution
Coll. of Inf. & Commun. Eng., Sungkyunkwan Univ., Suwon, South Korea
fYear
2015
fDate
9-12 Jan. 2015
Firstpage
564
Lastpage
565
Abstract
In recent years, simultaneous driving and sensing techniques for capacitive sensors have used to obtain high signal-to-noise ratio for given time limit of the touch system. In this paper, we show more effective utilization of design constraints of touch system by the use of the variants of 4k-order orthogonal codes. It is also possible to ease the specification of input stages of receivers in capacitive touch controllers.
Keywords
Hadamard matrices; capacitance measurement; capacitive sensors; orthogonal codes; tactile sensors; 4k-order Hadamard matrices; 4k-order orthogonal code; capacitive sensor; capacitive touch controller; capacitive touch system; sensing technique; signalto-noise ratio; Capacitive sensors; Error correction; Error correction codes; Receivers; Signal to noise ratio; Vectors;
fLanguage
English
Publisher
ieee
Conference_Titel
Consumer Electronics (ICCE), 2015 IEEE International Conference on
Conference_Location
Las Vegas, NV
Print_ISBN
978-1-4799-7542-6
Type
conf
DOI
10.1109/ICCE.2015.7066527
Filename
7066527
Link To Document