US 2002/0165666 A1 · System and method for distributed navigation service

Abstract

A distributed navigation system and method for providing driving instructions to a user. The system includes a service center having a navigation server and associated workstations. The service center stores driving instructions in a continuously updated map database. In response to a user request the instructions are transmitted by way of a wireless network to a client device residing in the user vehicle. The instructions are assembled into sequential stepwise driving directions and stored in a storage device in the client device. Commands from the user trigger playback of the driving instructions in a stepwise fashion.

Claims16

Dependent claims

A method of operating a navigation system for a vehicle comprising:

determining an initial position of the vehicle;
initiating a request for service, the request including transmission of the initial position of the vehicle;
establishing a voice connection, the voice connection providing transmission of a desired position of the vehicle;
calculating a route for the vehicle from the initial position to the desired position;
transmitting the calculated route to the vehicle in a media format adapted to be provided in a stepwise sequential fashion in response to commands.

2 more elements

A navigation system for a vehicle for providing navigational instructions to a user comprising:

positioning determining means for determining an initial position of the vehicle;
initiating means for initiating a request for service, the request including transmission of the initial position of the vehicle;
establishing means for establishing a voice call, said voice call including providing a desired position of the vehicle;
route calculation means for calculating a route for the vehicle from the initial position to the desired position;
and
transmitting means for transmitting the formatted calculated route to the vehicle in a media format adapted to be provided in stepwise fashion in response to commands.

3 more elements

Dependencies are inferred from the claim text.

System and method for distributed navigation service

Life of this patent

System and method for distributed navigation service

Life of this patent

Abstract

Claims16