Patent ID: 7729854
Filing Date: 2010-06-01
Classification: G01C

Abstract:
1. A navigation system for guiding a movable body from a starting point to a destination, comprising: (a) a user interface adapted to accept information pertaining to the destination and the starting point; (b) a route computing module in communication with the user interface and adapted to generate a route from the starting point to the destination, and to generate guidance information including a prescribed site for at least the destination and each point where route changes occur; (c) an image data generation module adapted to generate a map image for each prescribed site of a prescribed range around the prescribed site and an expanded range map image of each intermediate route including consecutive prescribed sites at each end of the intermediate route in a travel direction of the route; (d) a position information acquisition module that outputs the position of the movable body; (e) a display image generation module responsive to the position information acquisition module to superimpose on the map image an indicia indicating the position of the movable body when the movable body is within the prescribed range of the prescribed site and to superimpose on the expanded range map image an indicia indicating the position of the movable body when the movable body is outside of both prescribed sites included in the expanded range map image; and (f) a display adapted to display the guidance information, the map image, the expanded range map image and the superimposed indicia, each image displayed singly and in a sequential order.