Digital processing of touch signal - error probability

Author

Milivojevic, Zoran N. ; Mirkovic, Milena ; Stefanovic, Margareta

Author_Institution

Ei Televizija, Nis, Yugoslavia

Volume

2

fYear

2001

fDate

4-7 July 2001

Firstpage

475

Abstract

A new algorithm for digital processing of a touch signal is proposed. We consider the calculation of the error probability in the process of deciding on the existence of the optical infrared beam between the infrared transmitter and receiver. The error probability is calculated in the function of: (a) the ambient illumination simulated by the reflector placed a certain distance in front of the center of the touch interface; (b) window functions implemented in the algorithm for processing of the touch signal. The error probability is calculated for some classical, time-symmetrical as well as for some original, time-asymmetrical window functions.

Keywords

error statistics; optical information processing; touch sensitive screens; ambient illumination; digital processing; error probability; infrared receiver; infrared transmitter; optical infrared beam; time-asymmetrical window functions; time-symmetrical window functions; touch interface; touch signal; Acoustic beams; Cathodes; Computer displays; Error probability; Lighting; Optical beams; Optical receivers; Optical sensors; Optical transmitters; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

EUROCON'2001, Trends in Communications, International Conference on.

Conference_Location

Bratislava, Slovakia

Print_ISBN

0-7803-6490-2

Type

conf

DOI

10.1109/EURCON.2001.938165

Filename

938165