Positioning systems utilizing mobile telephone system for correction signals
First Claim
1. A system for tracking the location of vehicles and the like, said system comprising local positioning information supply means which corrects positioning information received from satellites so as to produce a local positioning information signal;
- said system further comprising a mobile telephone system which transmits said local positioning information signal to said vehicles and the like.
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Accused Products
Abstract
A positioning system where receiving stations such as multipurpose mobile communications devices (25) can thereby calculate their position; the system further including base stations (28) adapted to receive position information from the receiving stations (25) over a communications path (22) of a mobile telephone system. The system allows the receiving stations to receive a correction signal (13) from a correction station (14) over the communications path (22) on a special signaling layer (24) whereby the receiving stations can calculate a corrected position. The system can be used in conjunction with many forms of mobile telephone system.
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Citations
31 Claims
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1. A system for tracking the location of vehicles and the like, said system comprising local positioning information supply means which corrects positioning information received from satellites so as to produce a local positioning information signal;
- said system further comprising a mobile telephone system which transmits said local positioning information signal to said vehicles and the like.
- View Dependent Claims (2, 3, 4)
- 5. A mobile telephone system transmitter/receiver including global position calculating means.
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8. A global positioning system wherein receiving stations are adapted to receive raw positioning information and thereby calculate a position for said receiving stations;
- said system further including base stations adapted to receive data comprising said position and wherein said data is transmitted over a communications path of a mobile telephone system.
- View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A system for tracking the location of vehicles and the like, said system comprising local positioning information supply means which corrects positioning information received from satellites so as to produce a local positioning information signal;
- said system further comprising a mobile telephone system which transmits said local positioning information signal to said vehicles and the like; and
wherein said local positioning information signal is transmitted as part of a control layer signal or messaging signal on said mobile telephone system for reception by a mobile telephone receiver which further includes differential global positioning means whereby a physical location in three dimensions of said receiver is obtained. - View Dependent Claims (20, 21)
- said system further comprising a mobile telephone system which transmits said local positioning information signal to said vehicles and the like; and
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22. A mobile telephone system transmitter/receiver including global position calculating means;
- wherein said global position calculating means is adapted to utilise a differential GPS correction signal whereby relatively accurate position information can be derived by said global position calculating means, and wherein said differential GPS correction signal is transmitted on a special signalling layer of a communications path provided by a mobile telephone system of which said mobile telephone system transmitter/receiver forms a part.
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23. A global positioning system wherein receiving stations are adapted to receive raw positioning information and thereby calculate a position for said receiving stations;
- said system further including base stations adapted to receive data comprising said position and wherein said data is transmitted over a communications path of a mobile telephone system;
wherein said communications path includes at least a signal layer and a control layer, and wherein said data is transmitted over a special signalling layer of said communications path. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31)
- said system further including base stations adapted to receive data comprising said position and wherein said data is transmitted over a communications path of a mobile telephone system;
Specification