Patent ID: 8131466
Filing Date: 2012-03-06
Classification: G01C

Abstract:
1. An enlarged intersection image display method for a navigation system displaying an enlarged intersection image on a screen when a vehicle travels along a guidance path and approaches an intersection, the method comprising: defining, by an intersection guide unit, a circle having a predetermined radius, wherein a center of the circle is set to a first intersection; determining crossing points between the circle and an approach link and an exit link of the first intersection; setting a direction connecting the approach link crossing point and the first intersection as an approach direction, and setting a direction connecting the first intersection and the exit link crossing point as an exit direction; and drawing, on a screen of a display, when the approach link and the approach direction differ, and/or the exit link and the exit direction differ, an enlarged intersection image such that the approach direction is aligned with a 12 o'clock direction on the screen, and a traveling direction arrow extending from the approach direction toward the exit direction.