Patent ID: 7490294

Claim:
An information processing device for processing guide information including one or more characters, images, and map data related to destinations and facilities of interest, the device comprising: storing means for storing the guide information and user information, the user information including text entered by the user; recording means for recording the guide information and the user information separately on the storing means; linking means for adding a link, connecting the guide information to the user information, to the guide information; updating means for temporarily saving the link separate from the guide information; updating the guide information, after temporarily saving the links, by writing a new version of the guide information to the storing means without modifying the user information; and writing the saved link into the updated guide information upon completion of updating the guide information; display means for displaying the guide information and displaying the user information including the text entered by the user; and control means for causing the display means to display a present position mark corresponding to positioning information obtained by measuring a present position of the device, and routes to the destinations and facilities of interest.