Patent ID: 7720596

Claim:
A portable device, comprising: measured position acquisition means for acquiring a plurality of measured positions by measuring a current position continuously at a predetermined time interval; measured time acquisition means for acquiring a measured time at which each of the measured positions is acquired by said measured position acquisition means; position and time storing means for storing each of the measured positions with reference to a corresponding one of the measured times; travel memo information input means for inputting user-provided travel memo information and including a key operation unit having a plurality of keys for keying in the user-provided travel memo information as alphanumeric characters; a storage medium for storing guide content including user information and guide information, the user information including the user-provided travel memo information, the guide information including site information and map data, the site information including information regarding a plurality of sites, the map data including positional information for specifying a position of each site on a map; processor means for retrieving and relating the stored guide content such that for each one of the plurality of sites, the guide information for that site is associated with the user information for that site including the user provided travel memo information for that site; and display means for displaying at least one of a memo screen or a display screen, the memo screen for inputting additional user-provided travel memo information, the display screen being operable to show a traveling route on the map based on the measured positions and the measured times stored in said position and time storing means and the positional information stored in said storage medium and to show the user information associated with at least one site displayed on the map including the user-provided travel memo information for that site.