| 摘要 |
<p>A portable communication terminal (10) has a navigation function of guiding the user by showing the route from the present place to the destination by using a network (100) and the GPS signal. An earth magnetism sensor (46), a direction detecting circuit (44), and gyro sensor (48) detect the moving direction of the portable communication terminal (10) (the user). A CPU (20) judges whether or not the moving direction agrees with the route direction indicated by the navigation function at step S7. If not, an LED (38) emits red, yellow, or orange light to indicate the direction in which the user should move.</p> |
