VEHICLE-MOUNTED DEVICE, NAVIGATION SYSTEM, AND CONTROL METHOD FOR NAVIGATION SYSTEM

摘要

A vehicle-mounted device (10) comprises a reception means (60) for receiving the telephone number and positional information of a spot from a portable device (30), a storage means (70) for storing the telephone numbers and positional information of a plurality of second spots, a first comparison means (62a) for comparing the telephone number of the spot with the telephone numbers of the plurality of second spots, a second comparison means (62b) for comparing the positional information of the spot with the positional information of the plurality of second spots, and a display means (63) for displaying the spot on a map by using any of the positional information of the spot and the positional information of the second spots corresponding to the spot according to the results of the comparison by the first and second comparison means.  In addition, a navigation system (100) includes the vehicle-mounted device (10) and the portable device (30).