Tom Tom International B.v.

Mareije Roosen

Pieter Geelen

Edwin Neef

Rory Jones

Sergei Kucheiko

Erik Thomassen

Geert Hilbrandie

Sven Jurgens

A method of operating a PND or navigation system is described, together with a PND or navigation system for performing such a method. The PND or navigation system includes memory storing map data consisting of base map data files and supplemental corrective data files. In at least one embodiment, the method includes correlating the current location with the map data, and in the event that the current location and derived map data are seemingly at odds with one another, performing at least one secondary action. In at least one embodiment, the secondary action may be the issuing of an approve/reject prompt to the user, or the automatic creation, modification or deletion of a new or pre-existing correction. In a further aspect, at least one embodiment of the invention also provides for a PND or navigation system storing an indication of a home location, and prompting a user to visit nearby locations for which corrections exist, followed by prompted or automatic confirmation or rejection thereof.

Navigation device and method using map data correction files

In one embodiment of the present invention, an end-user can input a correction to a map error, directly on the device. The device is then able to use the correction without external processing of the correction. Hence, it is no longer necessary for an end-user to simply report errors to the map vendor over a web link, then wait for that map vendor to verify the error, update its maps and finally supply the end-user with updates&#x2014;a cycle that can take months and sometimes years to complete. Instead, the navigation device can use the correction immediately. End-users can also share corrections with other end-users and also with a shared remote server that aggregates, validates and distributes corrections.

Method of generating improved map data for use in navigation devices, map data and navigation device therefor

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Amsterdam, Netherlands

Mareije Roosen