Remote subscription unit for GNSS information

Details Remote subscription unit for GNSS information Remote subscription unit for GNSS information

2006-06-26

2009-08-25

Nguyen, Tan Q (Department: 3661)

Data processing: vehicles, navigation, and relative location

Navigation

Employing position determining equipment

C701S214000, C342S357490, C380S277000

Reexamination Certificate

active

07580794

ABSTRACT:
A GPS information service system for providing supplemental GPS correction and signal acquisition information to subscribers. A GPS information server broadcasts GPS aiding information encrypted with subscription keys. A remote GPS subscription unit receives the key enablers for the subscription keys in service activation (SAM) messages for the services for which they have subscribed and then uses the subscription keys to decrypt the GPS aiding information. In order to prevent unauthorized access to the information, unsymmetrical signature generation and authentication algorithms are used for generating and authenticating signatures for the SAM messages.

REFERENCES:
patent: 5365450 (1994-11-01), Schuchman et al.
patent: 5477458 (1995-12-01), Loomis
patent: 5615236 (1997-03-01), Turney
patent: 5717403 (1998-02-01), Nelson et al.
patent: 5828336 (1998-10-01), Yunck et al.
patent: 5841396 (1998-11-01), Krasner
patent: 5883594 (1999-03-01), Lau
patent: 5898680 (1999-04-01), Johnstone et al.
patent: 5999623 (1999-12-01), Bowman et al.
patent: 6075987 (2000-06-01), Camp et al.
patent: 6100842 (2000-08-01), Dreier et al.
patent: 6154840 (2000-11-01), Pebley et al.
patent: 6208291 (2001-03-01), Krasner
patent: 6222483 (2001-04-01), Twitchell et al.
patent: 6243648 (2001-06-01), Kilfeather et al.
patent: 6323803 (2001-11-01), Jolley et al.
patent: 6324473 (2001-11-01), Eschenbach
patent: 6529830 (2003-03-01), Eschenbach
patent: 6531981 (2003-03-01), Fuller et al.
patent: 6552681 (2003-04-01), Hayward et al.
patent: 6574611 (2003-06-01), Matsuyama et al.
patent: 6664922 (2003-12-01), Fan
patent: 6675095 (2004-01-01), Bird et al.
patent: 6704650 (2004-03-01), Fuller et al.
patent: 6741935 (2004-05-01), Eschenbach
patent: 6778136 (2004-08-01), Gronemeyer
patent: 6816090 (2004-11-01), Teckchandani et al.
patent: 6853916 (2005-02-01), Fuchs et al.
patent: 6879283 (2005-04-01), Bird et al.
patent: 6941225 (2005-09-01), Upadhyaya et al.
patent: 7009557 (2006-03-01), Kirchofer et al.
patent: 7287010 (2007-10-01), Ishibashi
patent: 2003/0046238 (2003-03-01), Nonaka et al.
patent: 2003/0147534 (2003-08-01), Ablay et al.
patent: 2004/0120527 (2004-06-01), Hawkes et al.
patent: 2004/0190715 (2004-09-01), Nimura et al.
patent: 2004/0203855 (2004-10-01), Veerasamy et al.
Nicholas Talbot, Gang Lu, Timo Allison & Ulrich Vollath, “Broadcast Network RTK—Transmission Standards and Results”, Institute of Navigation (ION) GPS 2002, Sep. 24-27, 2002, Portland, OR, pp. 2379-2387.
Herbert Landau, Ulrich Vollath & Xiaoming Chen, “Virtual Reference Station Systems”, Journal of Global Positioning Systems (2002), vol. 1, No. 2, pp. 137-143.
Ulrich Vollath, Alois Buecherl, Herbert Landau, Christian Pagels & Bernhard Wagner, “Multi-Base RTK Positioning Using Virtual Reference Stations”, Spectra Precision Terrasat GmbH.
Joe Chernesky, Phil Hartstein & Steve Knauer, “SkyNetix—Assisted GPS”, Patent Sale Offering—Three Issued U.S. Patents Covering Assisted GPS Positioning for Mobile Handsets, pp. 1 to 39, IPotential LLC, 1400 Fashion Island Blvd., Suite 601, San Mateo, California.
Landau, Herbert et al., “Virtual Reference Stations Versus Broadcast Solutions in Network RTK-Advantages and Limitations” GNSS 2003, Graz, Australia, (2003), 1-15.

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