We introduce Square, a text entry device in the form of a small square button. Conceptually, it is equivalent to a 3times3 keypad since the nine geometric elements of a square - four vertices, four edges, and a face - play the part of the nine keys of a 3times3 keypad. Being small and simple, Square can allow more freedom to the design of a mobile device. In addition, it is better for blind typing than a keypad due to the distinct tactile properties of the different elements of a square button.
Issue Date
2008-01-09
Language
ENG
Citation
26th IEEE International Conference on Consumer Electronics, The Mobile Consumer, ICCE 2008, v.54, no.3, pp.1274 - 1280