A technique is described for correcting digitized map data stored in a map database of a navigation device, wherein the map data comprises routing data in the form of route links and shape points, and wherein each route link is associated with a sequence o...

A technique for assisting driving a vehicle and for learning at least one distance between first and second distinctive marks on or at a road is disclosed. In method aspects, a first method comprises the steps of identifying the first distinctive mark on o...

A technique for determining location data from a database is presented. A method implementation of that technique comprises receiving a first user input defining an extension of a search corridor relative to a map visualized on a display unit. The search c...

A technique for structuring a navigation data base in order to support incremental data updates is provided. A method implementation of the technique comprises the steps of providing at least two data levels, wherein a first data level is associated with r...

A technique of structuring a navigation database is provided, wherein the navigation database comprises at least route link data for a predetermined geographic area. A method implementation of the technique comprises the steps of organizing route link data...

A technique for calculating a location of a first vehicle is described. A method implementation of this technique comprises the steps of detecting, from the perspective of the first vehicle, a movement of a second vehicle relative to the first vehicle, det...

A technique for switching (300) between route calculation modes of a navigation device (100) is described. A method embodiment comprises the steps of monitoring one or more travel parameters and evaluating a consistency (1000) between the selected mode (20...

The method involves pre-calculating a route in a display screen by cartographic data that includes road segments. Weights of the route calculation are assigned to the road segments, and selective screen position and time duration of selection operation is ...

The method involves detecting (S1) incoming telephone calls. An interval to an upcoming path guide point or to output of an upcoming maneuver instruction on a preset route is determined (S2) as a reaction on the detected telephone calls. Signaling of the i...