| 摘要 |
PROBLEM TO BE SOLVED: To obtain a mobile communication system in which the current position can be retrieved, a course to a goal can be retrieved and guided and required information and be acquired easily while walking by simply operating a navigation system remotely using a portable telephone or the like. SOLUTION: The mobile communication system comprises a car navigation system for operating the current position based on map information and a GPS data, and a portable telephone 40 for receiving the GPS data and transmitting the GPS data to the car navigation system. The car navigation system operates the current position of a user carrying the portable telephone 40 based on the GPS data transmitted from the portable telephone 40 and notifies the current position to the user. |
