Sunyu Hwang
Geehyuk Lee
ABSTRACT
The ever decreasing size of information devices these days does not allow even the space for small input devices such as a touchpad or a 3x4 keypad. We introduce here an input device, FeelTip, as a solution for very small information devices. The main idea is to exchange the usual roles of a finger and a surface in a touchpad; a device has a tip and a finger now provides a surface. The result is an input device requiring minimal space but is potentially more efficient than a touchpad due to the tactile feedback of a tip on a finger. Our first prototype consists of a transparent tip and a small CMOS image sensor that tracks the movement of a finger on a tip. In a series of experiments, it outperformed a small analog joystick in free pointing tasks, and was comparable with a 3x4 keypad in text entry tasks.
- MacKenzie, I. S., Kober, H., Smith, D., Jones, T., & Skepner, E. (2001). LetterWise: Prefix-based disambiguation for mobile text input. Proceedings of the ACM Symposium on User Interface Software and Technology -- UIST 2001, pp. 111--120. New York: ACM. Google Scholar
Digital Library
- MacKenzie, I. S., & Soukoreff, R. W. (2002). Text entry for mobile computing: Models and methods, theory and practice. Human-Computer Interaction, 17, 147--198.Google ScholarCross Ref
- MacKenzie, I. S., & Soukoreff, R. W. Phrase sets for evaluating text entry techniques. Extended Abstracts of the ACM Conference on Human Factors in Computing Systems -- CHI 2003, ACM Press (2003). 754--755. Google ScholarDigital Library
- Miika Silferberg, I.Scott MacKenZie, Pane Korhonen, Predicting text entry speed on mobile phones, CHI '2000, 1-6 April 2000. Google ScholarDigital Library
- Pavlovych, A., & Stuerzlinger, W. Model for nonexpert text entry speed on 12-button phone keypads. Proc CHI '04, 351--358 Google ScholarDigital Library
- S.A.Douglas, A.E.Kirkpatrick, I.S. Mackenzie, Testing pointing device performance and user assessment with the ISO 9241, Part 9 standard, CHI, pp215--222, 1999. Google ScholarDigital Library
Index Terms
- FeelTip: tactile input device for small wearable information appliances
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