Off-board navigation system
First Claim
1. A navigation method comprising:
- providing a motor vehicle with a location signal receiver for receiving externally generated location signals and a location processor for generating a location data based on the received location signals;
providing a map database having a plurality of road data representing a plurality of roads;
providing a call receiving center;
providing a wide area network including a wireless link to the motor vehicle;
receiving said location signals at said location signal receiver;
generating location data based on said received location signals;
communicating, through the wireless link, a route request signal from the motor vehicle to the call-receiving center, the route request including the location data and a destination identifier;
retrieving at said call-receiving center, at least a subplurality of the road data in response to said received route request signal;
generating a route data based on said retrieved road data, said location data and said destination identifier;
transmitting the route data to said motor vehicle, through at least said wireless link, to the motor vehicle;
presenting route instruction information to the user based on said route data.
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Accused Products
Abstract
An off-board navigation system including, in a vehicle, a user interface, a geographic location detection apparatus, for generating a position data representing the position of the vehicle, and a wireless transmitter/receiver, and call receiving center remote from the vehicle. The call receiving center includes a wireless transmitter/receiver, a roadmap database, and a processor for calculating road routes based on the roadmap database. A user in the vehicle transmits a route request to the call receiving center. The vehicle position data is communicated from the vehicle to the call receiving center. The call receiving center calculates a route based on the route request and the vehicle position data received from the vehicle over the wireless data. The route is transmitted from the call receiving center to the vehicle.
81 Citations
9 Claims
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1. A navigation method comprising:
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providing a motor vehicle with a location signal receiver for receiving externally generated location signals and a location processor for generating a location data based on the received location signals;
providing a map database having a plurality of road data representing a plurality of roads;
providing a call receiving center;
providing a wide area network including a wireless link to the motor vehicle;
receiving said location signals at said location signal receiver;
generating location data based on said received location signals;
communicating, through the wireless link, a route request signal from the motor vehicle to the call-receiving center, the route request including the location data and a destination identifier;
retrieving at said call-receiving center, at least a subplurality of the road data in response to said received route request signal;
generating a route data based on said retrieved road data, said location data and said destination identifier;
transmitting the route data to said motor vehicle, through at least said wireless link, to the motor vehicle;
presenting route instruction information to the user based on said route data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification