Patent ID: 7082443
Filing Date: 2006-07-25
Classification: G01C,G06F,Y10S

Abstract:
1. A method of updating geographic databases used in systems to provide navigation-related features, wherein the geographic databases are at a first version level, wherein the geographic databases represent geographic features located in a coverage area, wherein each of the geographic databases is separated into parcels of data, the method comprising: forming an updated parcel of data for each parcel in the geographic databases at the first version level that contains data that have been updated; wherein the updated parcel of data is formed so that the geographic features represented by the data in the updated parcel correspond to those represented by the data in a corresponding parcel in the geographic database at the first version level; and providing an incremental update transaction to the systems that provide navigation-related features, wherein the incremental update transaction identifies differences between the corresponding parcel from the geographic database at the first version level and the updated parcel so that, in each of said systems that provide navigation-related features, a copy of the updated parcel of data can be formed from a copy of the corresponding parcel in the geographic database at the first version level and said incremental update transaction, and further wherein the updated parcel of data so formed is used in each of said systems that provide navigation-related features in place of said copy of the corresponding parcel in the geographic database at the first version level.