Hybrid GPS/data line unit for rapid, precise, and robust positio

Details Hybrid GPS/data line unit for rapid, precise, and robust positio Hybrid GPS/data line unit for rapid, precise, and robust positio

1992-12-17

1994-11-15

Black, Thomas G.

Boots, shoes, and leggings

364443, 364452, 342457, 342450, G01S 502, G08G 112

Patent

active

053654501

ABSTRACT:
A global positioning system (GPS) in which a plurality earth orbiting satellites transmit position information to mobile radio stations on earth, is provided with a separate source satellite position data broadcast digital channels and one or more dial-up service separate communication channels (selected from a data link supported by terrestrial cellular telephone and other radio packet data services) for assisting the mobile radio station to access position information from the satellites. A controller is coupled to the mobile radio station for connecting to the separate communication channel for extricating the satellite position data via separate communication channel. The controller includes a microprocessor for processing the satellite position data to enable the mobile radio station to rapidly locate and access position information from said earth orbiting satellite. A unique system for processing the data is disclosed.

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"Radionavigation Systems", B. Forssell, pp. 282-283.
"The GPS Navigation Message", A. J. Van Dieren-Donal et al., pp. 55-73.

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