Patent ID: 7613468
Filing Date: 2009-11-03
Classification: G01S

Abstract:
1. A communications system for providing GNSS/GPS location-specific correction data to a plurality of mobile GNSS/GPS receivers, said system comprising: a first mobile GNSS/GPS receiver at a first location configured to incorporate said GNSS/GPS location-specific correction data in determining a position fix from GNSS/GPS satellite signals; a cellular communication device coupled with said first mobile GNSS receiver for informing a correction data source of the first location of said first mobile GNSS receiver and for receiving a set of said GNSS/GPS location-specific correction data for delivering said correction data to said first mobile GNSS/GPS receiver; a first wireless router coupled with said cellular communication device for forwarding, via a non-cellular wireless communication, a second set of GNSS/GPS location-specific correction data to a second wireless router coupled to a second GNSS/GPS receiver at a second location, wherein said second GNSS/GPS receiver requests said second set of GNSS/GPS location-specific correction data via said first wireless router and said cellular communication device.