Navigation method for assisting driver of motor car, involves outputting mirror image of graphical navigation reference instruction for assisting driver with driving route choice, using portable communication apparatus

摘要

The method involves determining graphical navigation reference instruction for assisting the driver (11) with driving route choice, and outputting the graphical navigation reference instruction in a display of a portable communication apparatus (3). The mirror image of the graphical navigation reference instruction is outputted using the portable communication apparatus. Independent claims are included for the following: (1) fastening device; and (2) motor car.