Gao, S;
McLean, D;
Lai, J;
Micou, C;
Nathan, A;
(2016)
Reduction of Noise Spikes in Touch Screen Systems by Low Pass Spatial Filtering.
Journal of Display Technology
, 12
(9)
pp. 957-963.
10.1109/JDT.2016.2550519.
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Abstract
This paper reports on a low-pass spatial filtering technique for reduction of noise spikes in capacitive touch screen panels. Filter bandwidth is adjusted by dynamically evaluating attenuation of signal and noise spikes. Based on the experimental results, we boost the signal-to-noise ratio by 15.6 dB and attenuate noise spikes by 19.25 dB. The processed signal yields higher detection accuracy and lower power consumption.
| Type: | Article |
|---|---|
| Title: | Reduction of Noise Spikes in Touch Screen Systems by Low Pass Spatial Filtering |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/JDT.2016.2550519 |
| Publisher version: | http://doi.org/10.1109/JDT.2016.2550519 |
| Language: | English |
| Additional information: | This work is licensed under a Creative Commons Attribution 3.0 License. For more information, see http://creativecommons.org/licenses/by/3.0/ |
| Keywords: | Capacitance touch screen panels (TSPs), low-pass spatial filtering, noise spike reduction and signal attenuation. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1539829 |
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