Mobile transponder for vehicles stores Global Positioning System data relating to vehicle position and displays direction information to user based on derived direction information

摘要

The transponder has a visual display for indicating the location of the vehicle in relation to the transponder. The transponder has a GPS (Global Positioning System) receiver for determining the position of the transponder. The transponder compares its own position with the position of the vehicle and derives direction information (6') for display. The transponder has a memory for storing the GPS Data relating to he position of the vehicle when the vehicle is left.