Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2004-06-29
2009-02-10
Lee, John J (Department: 2618)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S456100, C455S012100, C455S456600
Reexamination Certificate
active
07489926
ABSTRACT:
A method for estimating a precise position of a user device from signals from a low earth orbit (LEO) satellite includes receiving at least one carrier signal at a user device, each carrier signal being transmitted a distinct LEO satellite. The user device processes the carrier signals to obtain a first carrier phase information. The user device recalls an inertial position fix derived at an inertial reference unit. The user device derives a position of the user device based on the inertial position fix and the first carrier phase information.
REFERENCES:
patent: 5983160 (1999-11-01), Horslund et al.
patent: 6038444 (2000-03-01), Schipper et al.
patent: 6049304 (2000-04-01), Rudel et al.
patent: 6072428 (2000-06-01), Schipper et al.
patent: 6178195 (2001-01-01), Durboraw, III et al.
patent: 6252545 (2001-06-01), Da et al.
patent: 6373432 (2002-04-01), Rabinowitz et al.
patent: 6424913 (2002-07-01), Fichter et al.
patent: 2003/0016172 (2003-01-01), Natsume et al.
patent: 2003/0201934 (2003-10-01), Asher et al.
patent: 2004/0210389 (2004-10-01), Zimmerman et al.
Cohen Clark E.
Ferrell Barton G.
Gutt Greg M.
Whelan David A.
Lee John J
The Boeing Company
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