| 摘要 |
PURPOSE: To indicate the current position, input position and character information of other travel bodies on a travel body display device by exchanging information on the current and input positions and character information possessed by each travel body through transmission and receiving sections, regarding a plurality of travel bodies with a navigation device having a communication function. CONSTITUTION: A transmission section 4 sends the current position signal F1, input position signal F2, character signal F10 and identification signal F3 of a travel body as transmission waves F4. On the other hand, a receiving section 5 receives waves F5. Furthermore, an identification signal judgement section 42 in the receiving section 5 makes a comparison between an identification signal F3 from other travel bodies and a specified identification signal F7 as desired, and sends a selected receiving signal F8 to a map synthesizing section 21 in a display section 3, upon finding an agreement. The section 21 synthesizes the current position signal F1, input position signal F2, character signal F10 and the selected receiving signal F8 into map information and, then, sends a display signal F9 to a display device 22 for indication. |
