MAP DATA UPDATING METHOD, MAP DATA UPDATING SYSTEM, SERVER AND REPEATER SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a map data updating method, a map data updating system, a server, and a repeater system which enable a user to easily update the map data of a navigation system, and which reduce the load on the navigation system, by reducing the amount of data transferred at the updating of the map data.;SOLUTION: A server 2 having a server side map data storage section 22 is connected, via a network N2, with a shop terminal 4 having a shop-side map data storage section 45. The server 2 compares old version server side-map data 22a with the newly acquired new version map data to create difference data, and transmits the difference data to the shop terminal 4. The shop terminal 4, by using the difference data received from the server 2 and the shop-side map data 46, creates map data for updating and stores the map data for updating in an updated data storage device 6.;COPYRIGHT: (C)2006,JPO&NCIPI