Abstract: Proposed is a method for transmitting data in a vehicle, and a driver-information device, where an output unit is connected to processing devices by a data bus. This allows an output for all of the processing devices connected to the data bus to occur centrally in the output unit, whereby, on one hand, only one output unit is necessary for a plurality of processing devices, and on the other hand, processing devices of different manufacturers can be connected to one output unit, when a common data-bus protocol is present.

Abstract: To provide a method of automatically deleting a traffic message that is associated with at least one directed segment and/or at least one node, in which traffic messages are automatically deleted at the earliest possible time while ensuring that the route segment affected by the traffic message is not traveled again, the traffic message is deleted when the sum of the resistances remaining between the current position and the destination is less than or equal to a reference resistance which is determined by the sum of the resistances remaining between a reference segment and the destination, the reference segment being the segment subsequent to the segment of the route, in the direction toward the destination, that is affected by the traffic message and that was the route specified before the traffic message was taken into account.

Abstract: Invention relates to an emergency calling system for a passenger transporting system, especially for a motor vehicle, with a transmitter for establishing a telephonic connection with an external receiving station, such as a call center (18) or the like, as well as to a method for automatically transmitting an emergency call from a passenger transporting system, especially from a motor vehicle. At least one reproduction parameter of the audio output is set to a predefined value when the telephonic connection is established. The invention furthermore relates to an audio reproducing device for a passenger transporting system, especially for a motor vehicle.

Abstract: To provide a method of automatically deleting a traffic message that is associated with at least one directed segment and/or at least one node, in which traffic messages are automatically deleted at the earliest possible time while ensuring that the route segment affected by the traffic message is not traveled again, the traffic message is deleted when the sum of the resistances remaining between the current position and the destination is less than or equal to a reference resistance which is determined by the sum of the resistances remaining between a reference segment and the destination, the reference segment being the segment subsequent to the segment of the route, in the direction toward the destination, that is affected by the traffic message and that was the route specified before the traffic message was taken into account.

Abstract: A method for operating a navigational system having a digital map base which is a reproduction of real geographical regions and contains data on geographical elements, as well as a device which retrieves and processes data, such as an operating device having a display unit. In this context, a data directory of the data present in the digital map base is transmitted to the device which retrieves and processes data, and the device which retrieves and processes data selects data, to be requisitioned from the digital map base using this data directory.

Abstract: The method calculates by means of a navigation device an optimized route to a final destination, which is constrained to pass through at least one transition region of a real road network. Each transition region corresponds to a surface region of a stored digital map, which represents the road network with segments having resistances and nodes. The location and extent of each surface region are defined by a user of the navigation device. Relevant segments are stored in a via area list (VAL) in the navigation device. Route segments are optimized in the navigation device by a route-searching algorithm and are stored in route tables. Segment optimizations are executed and results are stored in separate sectional route tables. The overall resistance of the route is minimized under constraint that it passes through the at least one surface region. A navigation apparatus for performing this method is also described.

Abstract: The invention relates to a method for operating a navigation system comprising a digital map base, which is a representation of actual geographical areas and which contains data of geographical elements. The navigation-system also comprises a unit, which retrieves and processes the data, such as an operating unit provided with a display device. The data in the digital map base is combined in the form of geographically defined page frames. When requesting a page frame from the digital map base, data of geographical elements which extend beyond the edge of the page frame is transferred in such a manner that data pertaining to these geographical elements located outside of the requested page frame is also compiled and transferred.

Abstract: Proposed is a method for transmitting data in a vehicle, and a driver-information device, where an output unit is connected to processing devices by a data bus. This allows an output for all of the processing devices connected to the data bus to occur centrally in the output unit, whereby, on one hand, only one output unit is necessary for a plurality of processing devices, and on the other hand, processing devices of different manufacturers can be connected to one output unit, when a common data-bus protocol is present.

Abstract: A method, operating unit, navigation system and interface for displaying a predetermined section of a digital map database, which represents a real geographic area, on a display device are described. The digital map database contains data representing various geographic elements. An attribute, which defines a display priority, is assigned to each geographic element. An evaluation is then performed to determine whether or not particular geographic elements in the predetermined section to be displayed should or should not be visible on the display device. A particular geographic element is made visible on the display device when it is located in the predetermined section and when its display-priority-determining attribute satisfies certain selection criteria or selection rules. This method prevents display of too many geographic elements, which would otherwise make the display congested thus producing an unclear display.

Abstract: A method, operating unit, navigation system and interface for displaying a predetermined section of a digital map database, which represents a real geographic area, on a display device are described. The digital map database contains data representing various geographic elements. An attribute, which defines a display priority, is assigned to each geographic element. An evaluation is then performed to determine whether or not particular geographic elements in the predetermined section to be displayed should or should not be visible on the display device. A particular geographic element is made visible on the display device when it is located in the predetermined section and when its display-priority-determining attribute satisfies certain selection criteria or selection rules. This method prevents display of too many geographic elements, which would otherwise make the display congested thus producing an unclear display.

Abstract: In the method of determining a route from a starting point to a destination in a route network represented by a group of straight edges and nodes in a memory, especially a road network, each straight edge is correlated with a respective path resistance and the route is defined as a successive sequence of edges. The successive sequence of edges is determined by minimizing the sum of all path resistances. Each edge is also associated with at least one traffic-way-type path resistance value. The at least one traffic-way-type resistance value is first minimized during determination of a portion of the route from one edge to a following edge and only in the case that the traffic-way-type resistance value does not increase or decrease from one edge to the next is a minimization of the resistance performed for that portion of the route.