| 摘要 |
PROBLEM TO BE SOLVED: To enable one communication terminal to acquire quickly position related information of another communication terminal. SOLUTION: An information processing apparatus 13 of a vehicle side communication terminal 4 broadcasts a positional information request signal to pedestrian communication terminals 2, 3 at a time of first information transmission at a first inquiry. The pedestrian communication terminal 2 receives the positional information request signal and transmits its positional information as its reply. COPYRIGHT: (C)2005,JPO&NCIPI
|
