Receiver with seamless correction capacity

Details Receiver with seamless correction capacity Receiver with seamless correction capacity

1997-08-18

2000-05-09

Chin, Gary

Data processing: vehicles, navigation, and relative location

Navigation

Employing position determining equipment

701213, 34235703, 342358, G01S 502

Patent

active

060616326

ABSTRACT:
A system and method for determining which of a plurality of correction signals is to be used in a position determination system for determining position. An antenna receives broadcasts of correction data on designated frequencies. The received correction data is analyzed to determine the best correction data signal to use to accurately determine position. The correction data from the selected best source of correction data is coupled to a position determination system for accurate determination of position. Thus, the present invention provides a seamless correction system that determines the best source of correction data from available sources and uses the selected correction data to determine location. The seamless correction system updates the source of correction data automatically. Thus, the user does not have to take the time and effort necessary to determine the location, frequency and format of correction signals broadcast in each area and the user does not have to change frequencies or change equipment to obtain accurate position determination.

REFERENCES:
patent: 5323322 (1994-06-01), Mueller et al.
patent: 5365447 (1994-11-01), Dennis
patent: 5523761 (1996-06-01), Gildea
patent: 5831576 (1998-11-01), Sheynblat
patent: 5884220 (1999-03-01), Farmer et al.
patent: 5890091 (1999-03-01), Talbot et al.
patent: 5899957 (1999-05-01), Loomis

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