Information presentation apparatus and information presentation method

An information presentation method for presenting, to a user, information including a returning route, said method comprising:

• holding in advance a position of the user's home;
• holding in advance a home arrival time of the user;
• obtaining a present position of the user;
• obtaining a present time;
• obtaining a returning route from the present position to the held user's home position, a required time for the returning route, and a departure time to leave the present position so that the user can get home by the held home arrival time;
• comparing the obtained departure time the present time, and presenting to the user the obtained departure time and the obtained returning route, before the departure time is passed;
• accumulating in advance the user's preferences relating to a route selection;
• and
• controlling a degree of reflecting the user's preferences relating to the route selection which are used in said obtaining of the returning route, the required time and the departure time, and which are previously accumulated in said accumulating of the user's preferences;
• wherein said obtaining of the returning route, the required time and the departure time obtains the retuning route which reflects the user's preferences relating to the route selection;
• and
• wherein said controlling
• compares the present time, the home arrival time, and the required time for the returning route obtained in said obtaining of the returning route, the required time and the departure time,
• judges whether or not the user can get home by the home arrival time by taking the obtained returning route, and
• when it is judged that the user cannot get home by the home arrival time, causes said obtaining of the returning route, the required time and the departure time to search for the returning route again based on modified preferences of the user relating to the route selection so as to shorten the required time.

A program for an information presentation method for presenting, to a user, information including a returning route, said program being stored on a computer-readable medium and causing a computer to execute:

• holding in advance a position of the user's home;
• holding in advance a home arrival time of the user;
• obtaining a present position of the user;
• obtaining a present time;
• obtaining a returning route from the present position to the held user's home position, a required time for the returning route, and a departure time to leave the present position so that the user can get home by the held home arrival time;
• comparing the obtained departure time and the present time, and presenting to the user the obtained departure time and the obtained returning route, before the departure time is passed
• accumulating in advance the user's preferences relating to a route selection;
• and
• controlling a degree of reflecting the user's preferences relating to the route selection which are used in said obtaining of the returning route the required time and the departure time, and which are previously accumulated in said accumulating of the user's preferences;
• wherein said obtaining of the returning route, the required time and the departure time obtains the returning route which reflects the user's preferences relating to the route selection;
• and
• wherein said controlling
• compares the present time, the home arrival time, and the required time for the returning route obtained in said obtaining of the returning route, the required time and the departure time,
• judges whether or not the user can get home by the home arrival time by taking the obtained returning route, and
• when it is judged that the user cannot get home by the home arrival time, causes said obtaining of the returning route, the required time and the departure time to search for the returning route again based on modified preferences of the user relating to the route selection so as to shorten the required time.