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US 6,212,475 B1Granted
Method and apparatus for automated different GPS processing
AssigneeTrimble Navigation Limited
InventorsPeter Glen France, Paul D. Perreault
Life of this patent
Estimating the term…
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AssigneeTrimble Navigation Limited
InventorsPeter Glen France, Paul D. Perreault
Estimating the term…
GPS position information is collected and stored in a computer system. The GPS position information includes time-stamps that indicates when the GPS position information was collected. The computer system uses the time stamps to generate an error correction file name for an error correction file that can be used to correct the GPS position information. Using the generated error correction file name, the computer system connects to a file server that stores differential GPS error correction files and copies the needed differential GPS error correction file. The computer system connects to the DGPS file server using the File Transfer Protocol of the global Internet. The computer system then corrects the GPS position information in the computer system using the retrieved DGPS error correction file
A method of near real-time Differential Global Positioning System (DGPS) error correction, said method comprising:
A method of near real-time Differential Global Positioning System (DGPS) error correction, said method comprising:
A system comprising a rover Global Positioning System (GPS) unit configured to receive GPS information and transmit wirelessly the GPS information to a server which is configured to receive Differential GPS (DGPS) error correction information from a base station of a known location and process the GPS information with the DPGS error correction information.
A system comprising a rover Global Positioning System (GPS) unit configured to receive GPS information and Differential GPS (DGPS) error correction information and process the GPS information with the DPGS error correction information, said rover GPS unit configured to receive DGPS error correction information wirelessly from a DGPS server coupled to a base station with a known location.
A system comprising a Differential Global Positioning System (DGPS) server configured to be coupled to a base station and a rover Global Positioning System (GPS) unit, said base station configured to provide DGPS error correction information to the DGPS server, said DGPS server configured to wirelessly communicate with said rover GPS unit such that said GPS information is processed with the DGPS error correction information.
Dependencies are inferred from the claim text.