SATELLITE AIDED LOCATION TRACKING AND DATA SERVICES USING GEOSYNCHRONOUS AND LOW EARTH ORBIT SATELLITES
First Claim
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1. A mobile terminal, comprising:
- a first receiver for receiving signals from a plurality of global positioning system satellites;
a second receiver for receiving signals from a geosynchronous satellite; and
a transmitter module that includes a geosynchronous satellite transmitter and a low earth orbit satellite transmitter, wherein the mobile terminal selectively transmits, under control of a processor, position information to a centralized location via one of a geosynchronous satellite and a low earth orbit satellite.
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Abstract
A system and method for satellite aided location tracking and data services using geosynchronous (GEO) and low earth orbit (LEO) satellites. In one embodiment, a mobile terminal is designed for communication with both GEO and LEO satellites. This dual satellite functionality enables the asset tracking service to provide service across international service areas without hardware modification or reconfiguration of the mobile terminal device.
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Citations
18 Claims
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1. A mobile terminal, comprising:
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a first receiver for receiving signals from a plurality of global positioning system satellites; a second receiver for receiving signals from a geosynchronous satellite; and a transmitter module that includes a geosynchronous satellite transmitter and a low earth orbit satellite transmitter, wherein the mobile terminal selectively transmits, under control of a processor, position information to a centralized location via one of a geosynchronous satellite and a low earth orbit satellite. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A mobile terminal, comprising:
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a first receiver for receiving signals from a plurality of global positioning system satellites; a second receiver for receiving signals from a geosynchronous satellite; and a low earth orbit satellite transmitter that transmits position information to a centralized location via a low earth orbit satellite. - View Dependent Claims (10, 11, 12, 13)
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14. A satellite communication method, comprising:
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receiving global positioning system signals from a plurality of global positioning system satellites; receiving signals from a geosynchronous satellite; and transmitting position information derived from said received global positioning system signals to a centralized location via a low earth orbit satellite. - View Dependent Claims (15, 16, 17, 18)
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Specification