Map display device
AssigneeClarion Co., Ltd.
InventorKatsumi Iwano
Life of this patent
Estimating the term…
Abstract
Weather information is acquired and stored from a satellite radio broadcast. On the basis of this weather information, weather information image data is created for displaying the weather information superimposed upon a map. When the weather information display map is scrolled, the range of the map data shifts. Together therewith, the range of the weather information image data also shifts. After a map has been drawn on the basis of the map data for the shifted range, icons or the like that describe the weather information are drawn as superimposed upon this map on the basis of the weather information image data for the shifted range. Then the image data stored in the image memory is read in, and the weather information display map that has been drawn is display upon the display monitor.
Claims7
A map display device, comprising:
- a map image data creation unit that creates map image data;
- a map image data storage unit that stores the map image data created by the map image data creation unit;
- a map display control unit that displays a map on the basis of the map image data upon a display monitor;
- a map scroll unit that scrolls the map;
- a weather information reception unit that receives weather information for a plurality of predetermined areas;
- a weather information image data creation unit that creates weather information image data for displaying an icon corresponding to a specific weather on the basis of weather information for an area or areas in the predetermined areas received by the weather information reception unit, the area or areas covering over a display range of the map displayed upon the display monitor;
- a weather information image data storage unit that stores the weather information image data created by the weather information image data creation unit;
- and
- a weather information display control unit that displays the icon on the basis of the weather information image data at a specific position upon the map;
- wherein
- the weather information display control unit displays the icon at the specific position upon the map after scrolling, using the weather information image data stored by the weather information image data storage unit before the map is scrolled.
Dependencies are inferred from the claim text.