Abstract: A method of entering and modifying user data of a mobile communication terminal in a physically remote manner is provided A call is made from a mobile communication terminal to a computer or from a computer to a mobile communication terminal. Here, if a typical voice call or a simple data service call is connected, necessary data cannot be entered into the right memory area of the mobile communication terminal where said data have to be stored. In the present invention, a separate remote data update mode is set up and data and commands for transmission and entry of data are transmitted and received in this mode. According to the present invention, such data which cannot be entered by users in a direct manner to a mobile communication terminal as animation data or image data which are used for display on mobile communication terminal screen, melody data which are used for a ring tone for mobile communication terminal, game programs which are useable in mobile communication terminal, etc.

Abstract: A method of entering and modifying user data of a mobile communication terminal in a physically remote manner is provided A call is made from a mobile communication terminal to a computer or from a computer to a mobile communication terminal. Here, if a typical voice call or a simple data service call is connected, necessary data cannot be entered into the right memory area of the mobile communication terminal where said data have to be stored. In the present invention, a separate remote data update mode is set up and data and commands for transmission and entry of data are transmitted and received in this mode. According to the present invention, such data which cannot be entered by users in a direct manner to a mobile communication terminal as animation data or image data which are used for display on mobile communication terminal screen, melody data which are used for a ring tone for mobile communication terminal, game programs which are useable in mobile communication terminal, etc.

Abstract: A speech signal encoding/decoding method is provided. The method of encoding LPC coefficients includes dividing the nth-order line spectral frequencies into lower, middle and upper code vectors, quantizing the middle code vectors using a middle code book to generate a first index, selecting one of a plurality of lower code books according to the lowermost line spectral frequency of the middle code vector and the line spectral frequencies of the lower code vectors, and quantizing the lower code vectors using the selected lower code book to generate a second index, selecting one of a plurality of upper code books according to the uppermost line spectral frequency of the middle code vector and the line spectral frequencies of the upper code vectors, quantizing the upper code vectors using the selected upper code book to generate a third index, and transmitting the first, second and third indexes.