Navigation device for motor vehicle, has central processing unit connected upstream of switch unit whose output is connected with navigation interface and switched to data input by internal conversion unit

摘要

The device has a central processing unit (4) with a data input (8) such as universal serial bus (USB) port, where an external receiving antenna is connected with an external conversion unit by the USB port for generating digital position information. The processing unit is connected upstream of a switch unit. An output of the switch unit is connected with the navigation interface (12) and switched to the data input by an internal conversion unit (11), when information is input externally.