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Updating navigational map data

  • US 10,030,985 B2
  • Filed: 01/30/2017
  • Issued: 07/24/2018
  • Est. Priority Date: 01/19/2015
  • Status: Active Grant
First Claim
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1. A method for performing a routing function by a navigation device, the method comprising:

  • receiving, by the navigation device, a tile compatibility listing including a series of version numbers for a geographic database including map tiles having road link data, wherein (a) each version number in the series of version numbers corresponds to a different map tile identifier and (b) the tile compatibility listing indicates compatibility of pairs of map tiles of the geographic database;

    receiving, by the navigation device, a request for routing data;

    performing, by the navigation device, an analysis of the tile compatibility listing in response to the request; and

    performing, by the navigation device, the routing function to generate the routing data, wherein performing the routing function comprises selecting at least one road link corresponding to road link data of at last one of the map tiles based on the analysis of the tile compatibility listing.

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