| 摘要 |
A location information exchange apparatus includes an information acquisition means 4 for acquiring point information indicating an exchange point whose location is to be exchanged from a map database 6 according to an instruction from outside the apparatus; an information conversion means 3 for converting this point information into location information comprised of specific point information 3 indicating a specific point which exists in common among map databases and related information 9 indicating a relative location with respect to this specific point; and a communications means 2 for transmitting point exchange information 29 including the location information to outside the apparatus. The communications means further receives point exchange information from outside the apparatus, and the information conversion means converts location information included in the received point exchange information into point information, and determines an exchange point on the map database on the basis of the point information.
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