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Seungtaek Song, Namhyun Kim, Sungkil Lee, Joyce Jiyoung Whang, Jinkyu Lee

IEICE Trans. Fundamentals of Electronics, Comm. and Computer Science, E102-A(4), 668-671, 2019.
Smartphone users often want to customize the positions and functions of physical buttons to accommodate their own usage patterns; however, this is unfeasible for electronic mobile devices based on COTS (Commercial Off-The-Shelf) due to high production costs and hardware design constraints. In this letter, we present the design and implementation of customized virtual buttons that are localized using only common built-in sensors of electronic mobile devices. We develop sophisticated strategies firstly to detect when a user taps one of the virtual buttons, and secondly to locate the position of the tapped virtual button. The virtual-button scheme is implemented and demonstrated in a COTS-based smartphone. The feasibility study shows that, with up to nine virtual buttons on five different sides of the smartphone, the proposed virtual buttons can operate with greater than 90% accuracy.
@ARTICLE{song19:button, title={{Design and Feasibility Study: Customized Virtual Buttons for Electronic Mobile Devices}}, author={Seungtaek Song and Namhyun Kim and Sungkil Lee and Joyce Jiyoung Whang and Jinkyu Lee}, journal={{IEICE Trans. Fundamentals of Electronics, Comm. and Computer Science}}, volume={E102-A}, number={4}, pages={668-671}, year={2019} }

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