Patent ID: 6980907

Claim:
A map data processing unit that has a function of updating map data, and includes a display section for performing various types of display including display of a processing result of the map data, a manipulation section for carrying out input manipulation for processing the map data, and a control section for performing entire control, said map data processing unit comprising: an update data input section for inputting update data for updating the map data to latest version map data; a batch update section for collectively updating all the map data to the latest version map data in accordance with the update data fed from said update data input section; a dynamic update section for updating the map data to the latest version map data in accordance with the update data fed from said update data input section every time the map data becomes necessary; an update method selecting section for selecting one of the batch update section and dynamic update section in response to the update data; and a map data storing section for storing the map data.