Portable vehicle navigation system (NV-1): Its features and operability

The NV-1 described is a vehicle navigation system which has been developed primarily for the aftersales market. The user can easily remove this stand-alone system from the vehicle. The system uses a CD-ROM disc on which is stored a map database whose format is standardized and widely compatible. The user can enjoy a variety of software by merely changing the disc. Use is also made of a variety of CD-ROMs containing additional information, which is classified according to intended application. Since this navigation sytem incorporates a speech recognition function, the user can perform a series of operations without touching the controls or looking at the screen.