Apparatus and process for a global navigation satellite...

Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite

Reexamination Certificate

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C342S357490

Reexamination Certificate

active

07576691

ABSTRACT:
A satellite system for providing a navigation service includes a ground segment and a user segment. The ground segment provides information to enable the user segment to autonomously determine the user position performance.

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