GLOSSARY
Map CD
Compact Disc with CD-i format. CD which contains data only readable by
a special CD player. Digitized road maps, city maps and a database of
facilities of special interest (for example parking, hotels, restaurants, gas
stations etc.) are stored on a map CD.
GPS
Global positioning system: A system for determination of the exact
position by receiving data from several earth orbiting satellites. To
calculate a precise position at least four satellites have to be receivable
simultaneously. The GPS receiver calculates the vehicle position with the
received GPS signals. The satellite icon is displayed in green color as
long as sufficient GPS data is received.
Gyroscope
One of the sensors used for calculation of the current vehicle position.
The gyro is located in the navigation computer. It measures changes in
the vehicle's direction.
Navigation computer
The core component of the navigation system. The navigation computer
compares the data on the map CD with the signals coming from the
sensors and from the GPS receiver and calculates the current vehicle
position. Also route planning and guidance functions are handled by the
navigation computer.
SDVC
Speed dependent volume control: For compensation of engine, wind and
rolling noise of the vehicle the voice volume is increased dependent on
the vehicle speed. The increase of the voice volume is controlled by the
navigation system. You can adjust the volume increments by selecting
different SDVC curves.
Glossary
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