A process for the possibility of misuse is licensed data carrier is a

摘要

The method involves transmitting a request by a navigation device (2) at a time point for connecting a licensed data carrier (1) with the navigation device. A usage period is setup by the navigation device after the time period for connecting the carrier with the navigation device. Functions of the navigation device are released by the navigation device within the usage period when the carrier is connected with the navigation device. The functions of the navigation device are locked by the navigation device after the usage period when the carrier is not connected with the navigation device.