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:
Aug. 27, 2013
Filed:
Mar. 22, 2010
Daniel Macias-valadez, Québec, CA;
Rock Santerre, Saint-Augustin-de-Desmaures, CA;
Sophie Larochelle, Québec, CA;
Daniel Macias-Valadez, Québec, CA;
Rock Santerre, Saint-Augustin-de-Desmaures, CA;
Sophie Larochelle, Québec, CA;
Universite Laval, Quebec, CA;
Abstract
A GPS system for obtaining data from a GPS signal received at a plurality of antenna stations, each antenna station being connected to a common receiver station through an optical fiber link. The system includes a light generating module at the receiver station generating an optical reference signal, and an antenna station module at each antenna station. The antenna station modules modulate the optical reference signal according to the GPS signal received, obtaining a twice modulated optical signal, and sending this signal to the receiver station. Finally, an output module is provided at the receiver station, this module being used for extracting the GPS signal and the oscillating reference signal, calibrating in real time the optical fiber links based on a phase comparison, and processing the GPS signal from the antenna stations, taking into account the real time calibration of the optical fiber links.