Satellite radio based vehicle positioning system
First Claim
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1. A method for determining the position of a vehicle, said method comprising:
- receiving, via an onboard vehicle subsystem, global positioning system (“
GPS”
) signals originating from GPS satellites, said GPS signals comprising GPS data;
receiving, via said onboard vehicle subsystem, satellite radio system (“
SRS”
) signals originating from a satellite radio broadcast center, said SRS signals comprising GPS correction data; and
generating current vehicle position data in response to said GPS data and said GPS correction data.
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Abstract
A vehicle positioning system architecture according to the invention employs a satellite radio system (“SRS”) to deliver global positioning system (“GPS”) correction data to vehicles. A vehicle having a compatible onboard positioning system receives standard GPS data from GPS satellites, along with SRS signals from SRS satellites and/or SRS terrestrial repeaters. The onboard vehicle positioning system corrects the GPS data with GPS correction data received via the SRS signals.
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Citations
20 Claims
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1. A method for determining the position of a vehicle, said method comprising:
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receiving, via an onboard vehicle subsystem, global positioning system (“
GPS”
) signals originating from GPS satellites, said GPS signals comprising GPS data;
receiving, via said onboard vehicle subsystem, satellite radio system (“
SRS”
) signals originating from a satellite radio broadcast center, said SRS signals comprising GPS correction data; and
generating current vehicle position data in response to said GPS data and said GPS correction data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An onboard vehicle positioning system comprising:
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a global positioning system (“
GPS”
) receiver configured to receive GPS signals originating from GPS satellites, said GPS signals comprising GPS data;
a satellite radio system (“
SRS”
) receiver configured to receive SRS signals originating from a satellite radio broadcast center, said SRS signals comprising GPS correction data; and
processing logic coupled to said GPS receiver and to said SRS receiver, said processing logic being configured to generate current vehicle position data in response to said GPS data and said GPS correction data. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method for providing positioning information to vehicles supported by a vehicle positioning system, said method comprising:
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obtaining global positioning system (“
GPS”
) correction data for a satellite radio system (“
SRS”
) uplink station;
uplink transmitting said GPS correction data from said SRS uplink station to at least one SRS satellite; and
downlink transmitting SRS signals from said at least one SRS satellite, said SRS signals comprising said GPS correction data. - View Dependent Claims (17, 18, 19, 20)
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Specification