FIELD: digital devices using a reduced keyboard for inputting text.
SUBSTANCE: in accordance to the invention, symbols of used language, indicated on screen, with possible unambiguous association between image of key and physical key of keyboard matched with it, are divided on groups in accordance to how frequent symbols are in texts in that language, groups are shown on screen along perimeter of closed figures with one center, but different geometrical dimension, while symbols which appear most frequently in texts of used language are positioned closer to common center of figures, and symbols with lesser frequencies of appearance in texts of used language are positioned farther from the center.
EFFECT: prevented ambiguousness of inputted key presses at symbol level, minimized number of key presses, increased efficiency of input and possible application of blind method of typing.
12 cl, 10 dwg
