Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite
Reexamination Certificate
2007-10-16
2007-10-16
Tarcza, Thomas H. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a satellite
C342S357490, C342S357490, C342S358000, C701S213000, C701S214000
Reexamination Certificate
active
10745829
ABSTRACT:
A system for standard positioning service (SPS) and precise positioning service (PPS) cooperative operation is disclosed. In one embodiment, a PPS receiver is utilized to process a PPS data portion of a positioning signal. In addition, an SPS receiver is utilized to process an SPS data portion of the positioning signal. Furthermore, the PPS receiver and the SPS receiver are communicatively coupled such that the PPS data portion from the PPS receiver is cross-validated with the SPS data portion from the SPS receiver thereby corroborating the accuracy of the positioning signal.
REFERENCES:
patent: 6031488 (2000-02-01), Hua et al.
patent: 6377892 (2002-04-01), Johnson et al.
patent: 6577951 (2003-06-01), Johnson et al.
Happel D, Collins R: “Use of Military GPS in a Civil Environment” Ion 59th Annual Meeting, Jun. 25, 2003, pp. 57-64 XP002357549 Alburquerque.
Edwards A et al: “Military GPS Avionics Receivers for Civil Airspace Operations” Proceedings of the Institute of Navigation , Sep. 9, 2002, pp. 2486-2497 XP002333683.
Dentinger Michael
Spratlin Ken
Mull Fred H
Tarcza Thomas H.
Trimble Navigation Limited
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