| 摘要 |
PURPOSE: To make it possible to specify a previous map immediately in a newly displayed map by displaying the place and range of the map which were displayed before key operation on the newly displayed map when the map which is displayed is reduced to enlarge the display area. CONSTITUTION: Map data from a map data storage means 2 is supplied to a signal processing means 3 to generate specific map image data and displayed on a display means 15. This electronic map device 1 displays a reduced map with a reduction key of an operation means 16 pressed when a user wants to see a map covering a wider range than the map currently displayed on the display means 15 on a specific scale. At this time, the place and range of the previous map are displayed with a frame, etc. Consequently, it can be known which part in the reduced map the range of the previous map is. |
