Fuente: Wipo "digitalization" Disclosed is a system for realizing a keyboard emulator using digital paper and a digital pen. The system includes keyboard emulator digital paper, a keyboard emulator/digital pen, and an information communication terminal. Advantageously, a keyboard emulator is realized by using digital paper having a number of X and Y coordinate values or pattern IDs assigned on its surface and a digital pen for recognizing the X and Y coordinate values or pattern IDs printed on the digital paper. The keyboard emulator can be carried conveniently. In addition, the size of the keyboard realized on the digital paper, as well as the number of keys of the keyboard, can be variously selected.