Abstract: To generate appendices which uniquely reference an object geographically, a tree of possible paths is generated. The paths are evaluated in accordance with predefined criteria, which are suited for use as termination criteria, at the time the paths are formed. Of the remaining paths, at least that one is coded as an appendix which best fulfills at least one of the criteria.

Abstract: A method of exchanging navigation information between a terminal, an offboard vehicle navigation device in particular, and a control center is described, the navigation information including route information for at least one route between a starting point and a destination. The method involves the following steps: a) verifying a starting point reference ID and/or starting coordinates and verifying a destination reference ID and/or destination coordinates and b) calculating route data and transmitting to the terminal a route response containing at least parts of the route data, the route data corresponding to at least one complete route from the starting point to the destination or at least one partial route from the starting point to an intermediate point located between the starting point and the destination at least as a function of the length of the route from the starting point to the destination.

Abstract: A method for controlling the sensitivity of at least one microphone in which video data of a sound source, in particular a speech source, is recorded by a camera. The camera is located in a predetermined position relative to the at least one microphone. A position of the sound source relative to the at least one microphone is determined as a function of the recorded video data and/or a focus setting of a lens of the camera. The sensitivity of the at least one microphone is adjusted as a function of the determined position.

Abstract: A method of exchanging navigation information between a terminal, an offboard vehicle navigation device in particular, and a control center is described, the navigation information including route information for at least one route between a starting point and a destination.

Abstract: To generate appendices which uniquely reference an object geographically, a tree of possible paths (A . . . E) is generated. The paths are evaluated in accordance with predefined criteria, which are suited for use as termination criteria, already at the time the paths are formed. Of the remaining paths, at least that one is coded as an appendix which best fulfills at least one of the criteria.