Fecha de publicación: 15/01/2005 Fuente: WIPO "apis" PURPOSE: A data communication interface device of a mobile communication terminal is provided to convert power of a computer into a charging power when the computer is connected with mobile communication terminals, and to supply the charging power to the mobile communication terminals, thereby using USB communication and UART communication through one communication cable.CONSTITUTION: A terminal access unit(200) selectively connects a mobile communication terminal(100a) for performing UART communication or a mobile communication terminal(100b) for performing USB communication with a computer according to a communication method. A converter(300) sets a transmission path of data according to a kind of the terminal access unit(200), and interfaces the data. A computer access unit(400) connects such that the converter(300) can be connected with the computer.© KIPO 2005