Granted Patent B2

US 7,174,253 · App. 11/119,294 · Granted Feb 6, 2007

Abstract

Claims (26)

1. A method for receiving traffic update information and reroute information from a call center in a mobile vehicle, the method comprising:

receiving traffic obstruction information at the telematics call center;

classifying the traffic obstruction information within a broadcast subarea;

transmitting the classified traffic obstruction information from the call center to a satellite broadcast radio uplink facility; and

broadcasting the classified traffic obstruction information to at least one mobile vehicle.

2. A method for receiving traffic update intonation and reroute information from a call center in a mobile vehicle, the method comprising:

receiving traffic obstruction information at the telematics call center;

classifing the traffic obstruction information within a broadcast subarea, wherein the classifying the traffic obstruction information comprises encoding the traffic obstruction information using a multiplexing strategy;

transmitting the classified traffic obstruction information from the call center to a satellite radio uplink facility; and

broadcasting the classified traffic obstruction information to at least one mobile vehicle.

3. The method of claim 2 wherein the multiplexing strategy is time division multiple access.

4. A method for receiving traffic update information and reroute information from a call center in a mobile vehicle, the method comprising:

receiving route information from the call center at the mobile vehicle;

contacting the call center upon embarking on travel based on the route information, the contacting including:

receiving broadcast traffic obstruction information via a satellite broadcast radio subcarrier;

determining whether the received broadcast traffic information indicates a traffic obstruction on at least one current route; and

transmitting a reroute information request to the call center using a wireless carrier system; and

receiving reroute information based on the contacting the call center.

5. A method for transmitting reroute information to a mobile vehicle from a call center, the method comprising:

transmitting route information to the mobile vehicle in response to a route request from the mobile vehicle;

receiving, at the call center, broadcast traffic information via a satellite broadcast radio subcarrier;

receiving a query from the mobile vehicle;

determining whether the traffic information is relevant to the route information; and

transmitting reroute information to the mobile vehicle in response to the determining.

6. The method of claim 5 wherein transmitting route information comprises determining at least one current route.

7. The method of claim 6 wherein determining whether the traffic information is relevant to the route information comprises determining whether the received broadcast traffic information indicates a traffic obstruction on the at least one current route.

Assignments (13)