Patent ID: 7015899

Claim:
A method for navigating and inputting characters in a portable device, comprising a display unit including a predetermined selecting character window and a selected character window, a memory for storing at least one character having intrinsic virtual coordinates, and a plurality of input keys, the method comprising the steps of: selecting the selecting character window; navigating the at least one character by changing virtual coordinates indicated by a cursor by using at least two input keys; displaying a character line including the at least one character corresponding to the virtual coordinates indicated by the cursor, on the selecting character window; selecting a selected character from the at least one character on the selecting character window by using an input key among a plurality of input keys; and displaying the selected character on the selected character window, wherein the virtual coordinates include X- and Y-coordinates, the at least one character is arranged on X- and Y-axes for corresponding to the virtual coordinates, and the at least one character is arranged on the X-axis for being included in the character line, wherein the input keys include a LEFT key, a RIGHT key, an UP key, a DOWN key, and an ENTER key, and wherein navigating the at least one character comprises at least one of increasing the Y-coordinate of the virtual coordinates indicated by the cursor in the selecting character window by an input of the UP key, decreasing the Y-coordinate of the virtual coordinates indicated by the cursor in the selecting character window by an input of the DOWN key, decreasing the X-coordinate of the virtual coordinates indicated by the cursor in the selecting character window by an input of the LEFT key, and increasing the X-coordinate of the virtual coordinates indicated by the cursor in the selecting character window by an input of the RIGHT key.