Patent ID: 8630794
Filing Date: 2014-01-14
Classification: G01C

Abstract:
1. A method of operating a navigation device, the method comprising the acts of: receiving multiple route elements, each route element having at least one parameter, wherein the route elements characterize a route; assigning each of the route elements to local route elements stored in a digital memory card for the navigation device; determining, by a processor, a quality coefficient for each of the route elements for assignability thereof to the local route element, depending on at least one of the at least one parameters; determining, by the processor, a route reconstruction quality coefficient depending on the respective quality coefficients of the route elements; determining parameter quality coefficients for each respective parameter of the route elements, said parameter quality coefficients being characteristic of a respective assignability of each respective parameter to a corresponding parameter of the assigned local route elements; and determining the quality coefficient for each respective route element depending on the determined parameter quality coefficient.