FIELD: device for inputting letters for cell phone and personal digital assistant, device for inputting letters for automobile, and also device for inputting letters for communication device of remote control block.
SUBSTANCE: in accordance to invention, when a cell phone, provided with one joystick, two case switching keys and twenty six keys on opposite sides, is held by both hands and ten fingers are used, any one of twenty six letters of alphabet may be inputted in one pressing operation without switching case key, and letters may be inputted with ultra high speed, using sensor typing by fingers.
EFFECT: creation of new and epochal cell phone communication means, which serves to make cell phone far more comfortable for user.
2 cl, 41 dwg
