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Map Version Control Methods And Apparatus For Updating The Use Of Network-Maintained Map Data Sets For Mobile Communication Devices

  • US 20110300848A1
  • Filed: 08/19/2011
  • Published: 12/08/2011
  • Est. Priority Date: 03/31/2006
  • Status: Active Grant
First Claim
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1. A method in a mobile device for use in receiving updates of network-maintained map data sets, the method comprising:

  • receiving, at the mobile device through a wireless network, map data for rendering a map, the map data having a plurality of layers, each of the plurality of layers including a version number and a plurality of data entries associated therewith, each of the plurality of data entries indicating a plurality of data points for rendering one or more artifacts or labels within an area of interest of the map;

    storing the map data;

    displaying the area of interest at the mobile device from the plurality of layers of the stored map data;

    receiving, through the wireless network, an indication of an alternative version of one of the layers of the stored map data; and

    when the version number of the alternative version is greater than the version number of the stored version;

    causing one or more requests for the alternative version of said layer for the area of interest to be sent through the wireless network, receiving the alternative version of said layer for the area of interest through the wireless network in response to the one or more requests, and causing the map of the area of interest to be rendered in the display in accordance with the combined plurality of layers of the stored map data but with use of the alternative version of said layer.

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