| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication system for reducing a risk of pressing of a storage capacity of cellphone. SOLUTION: A server acquires position information from a plurality of cellphones for managing collectively. When the cellphone sets a target position, the cellphone acquires a current position, and requests display of an optimum route for connecting the target position to the current position to the server. The server searches the position information managed collectively and returns optimum search result information to the cellphone that has requested the display. COPYRIGHT: (C)2011,JPO&INPIT |
