To ensure that of all information transmitted through broadcast
communications, only the information corresponding to the traveling route
of a mobile body will be efficiently displayed at the information terminal
of a car navigation system or the like, the information terminal is
provided with: a means for receiving the spot or area information being
transmitted, and receiving information that has been linked to the spot or
area information being transmitted, a means for judging whether the spot
or area information that has been received above is included in part of
the spot or area information corresponding to the traveling route of the
mobile body, and storage media for retaining the received spot or area
information that the above-mentioned judgment means has judged to be
included in the spot or area information corresponding to the traveling
route of the mobile body.
