| 摘要 |
PROBLEM TO BE SOLVED: To enable delivery of map difference data corresponding to each of terminal devices whose object map elements are different, and to enable prevention of the occurrence of useless communication expenses while restraining operation cost. ! SOLUTION: A map difference data delivery device comprises: a delivery data generation unit 142 that converts a single piece of map difference data from the map difference data stored in a map difference DB 12 into data corresponding to a delivery destination navigation device 2 and mobile terminal 3 by use of a conversion table that replaces the map difference data into changed contents of data of a map element, which is an object of each of the navigation device 2 and the mobile terminal 3 whose object map elements are different; and a delivery unit 143 that delivers the map difference data into which the single piece of map difference data was converted by the delivery data generation unit 142 such that the converted data corresponds to the deliver |
