Patent ID: 7451040

Claim:
A navigation device that provides notification information to a user of movable body, when the movable body is approaching a feature, the device comprising: a storage that stores a map information and a feature notification information; a current position information acquiring section that acquires a current position information for the current position of the movable body; a destination recognizer that acquires a destination information relating to a destination of the movable body; a route processor that searches for a movement path using the map information based on the current position and the destination; and a guidance providing section that provides the notification information on the feature to the user, wherein the notification information including a unique description of the feature for the user, and first unique mesh information corresponding to a position of the feature and second unique mesh information corresponding to the notification position, the unique mesh information being assigned into a plurality of sub-areas divided as a matrix so that only one position of any feature or of any notification position is contained in and associated with any one sub-area, wherein, when the movable body moving along the movement path reaches a position corresponding to one of the sub-areas corresponding to the notification position, the guidance providing section recognizes that the movable body is located at the notification position represented by the corresponding unique sub-area and provides the description of the feature associated with the notification position to the user.