The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 12, 2008
Filed:
Sep. 10, 2002
Antoine Soulie, Paris, FR;
Pierre Dupuy, Paris, FR;
Antoine Soulie, Paris, FR;
Pierre Dupuy, Paris, FR;
Evolium S.A.S., Paris, FR;
Abstract
A method and system for synchronizing terrestrial nodes equipped with GNSS (Global Navigation Satellite System) receiver belong to a terrestrial network. Synchronization is achieved by selecting terrestrial node to be synchronized to form a synchronization zone. The clear sky view solid angle shared by the terrestrial nodes is determined. The terrestrial nodes acquire a rough time reference sent by a satellite that can be viewed by the terrestrial nodes in the clear sky view solid angle. A common synchronization date is determined for all the terrestrial nodes. And, at the common synchronization date all the terrestrial nodes acquires a predefined sequence from the satellite. The terrestrial nodes uses this sequence to adjust the reference time.