To efficiently display a map desired by a user on a portable terminal device which is greatly limited in memory capacity.
The map display terminal 10 of this map display system 1 is provided with a position detecting part 13 for detecting the current position of the map display terminal 10 and a map information acquiring part 16 for acquiring from a map server 18 a detailed map including a desired position designated within a wide-area map containing the current position. The map information acquiring part 16 transmits the current position detected by the position detecting part 13 to the map server 18 to acquire the wide-area map, the detailed map containing the current position, and a detailed map of an area around the former detailed map containing the current position. In this case, the map display terminal 10 transmits the storable capacity of the detailed map to the map server 18. The detailed map transmitted from the map server 18 is received and displayed in order of precedence based on the storable capacity of the detailed map.
MOMOI TSUNEHIRO
ASANO HAJIME
SAKAI TATSUYA
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