Identity authentication based on keystroke latencies
Communications of the ACM
Class-based n-gram models of natural language
Computational Linguistics
Half-QWERTY: typing with one hand using your two-handed skills
CHI '94 Conference Companion on Human Factors in Computing Systems
Cryptological Mathematics
POBox: An Efficient Text Input Method for Handheld and Ubiquitous Computers
HUC '99 Proceedings of the 1st international symposium on Handheld and Ubiquitous Computing
Twiddler typing: one-handed chording text entry for mobile phones
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Hand-Gesture Based Text Input for Wearable Computers
ICVS '06 Proceedings of the Fourth IEEE International Conference on Computer Vision Systems
The chording glove: a glove-based text input device
IEEE Transactions on Systems, Man, and Cybernetics, Part C: Applications and Reviews
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In various environments, such as mobile and wearable computing, compact I/O devices are desirable from the viewpoint of portability. Now, many users are accustomed to input with a keyboard, however, there is a limitation of miniaturization because it degrades the performance of key touch. Therefore, in this paper, we propose a method to miniaturize a keyboard by excluding the half of it. In using the proposed method, one hand hits keys as usual, and the other hand hits the place outside the keyboard as if the user types with both hands. The user can input words with only one hand because the proposed system estimates the input word using keying interval, which appears also when the user inputs with both hands. From the results of user study, we confirmed that the user can input with only one hand and that it does not decrease input speed drastically.