Patent ID: 6334089
Filing Date: 2001-12-25
Classification: G01C,G01S,G08G

Abstract:
A vehicle routing and guidance system comprisinga vehicle-based navigation system (35) located in a vehicle, said navigation system (35) including an input device (38) for entry of at least one destination (B) to which the vehicle is to travel and a self-locating means for determining location of the vehicle,a central server (12) located outside of said vehicle for making navigational information available to the navigation system, said central server including means for calculating a route (16) to said at least one destination (B) and means for dividing the route (16) into route sections (34), andtransmitter and receiver means for at least temporarily establishing communication between the central server (12) and the navigation system (35), said transmitter and said receiver means including means for transmitting said route sections (34) individually and separately to said navigation system (35) so that said route (16) is transmitted in a piecewise manner to said navigation system.