Patent ID: 7369872

Claim:
A mobile communication device, comprising: a body; a geomagnetic sensor for detecting a rotation angle of the body based on an axis perpendicular to the earth surface; a main memory for storing a predetermined range of rotation angles and images corresponding thereto; a display unit for displaying a first image corresponding to the current rotation angle on a screen; a control unit for, if the rotation angle detected in the geomagnetic sensor is changed, extracting a second image corresponding to the changed rotation angle from the main memory and controlling the display unit to display the second image, and, if the rotation angle detected in the geomagnetic sensor is not changed, controlling the display unit to maintain displaying the first image regardless of whether or not the mobile communication device moves to another position, and a communication module for dialing a telephone number corresponding to the displayed image automatically, if the displayed image is displayed on the screen for a predetermined time.