R.Jr. Landry, M.-A. Fortin, J.-C. Guay, «… By RlandryMay 29, 20142010 R.Jr. Landry, M.-A. Fortin, J.-C. Guay, « Universal Acquisition and Tracking Apparatus for Global Navigation Satellite System (GNSS) Signals », N°: US12/767,773, 20/4/2010.