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Abstract

The invention pertains to a method for operating a navigation system. The navigation system includes a data base, in which a geographic region is described by means of machine-readable data, wherein the data base also contains signpost data sets that respectively describe the signpost information of signposts in the geographic region, a route calculating unit for calculating a route, a position finding unit that makes it possible to determine the current position, and at least one output device for outputting at least part of a signpost data set; in the form of an optical, anchor acoustical signpost message in dependence on the current position. The method includes the following steps: a) determining at least two signpost data sets, wherein a first signpost data set describes the signpost information of a first signpost along the route, and wherein a second signpost data set describes die signpost information of a second signpost that lies behind the first signpost along the route,b) comparing the determined signpost data sets,c) deriving the signpost message, wherein the content of the signpost message is determined in dependence on the result of the comparison between the determined signpost data sets, andd) optically and/or acoustically outputting the signpost message.

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First Claim