A method and device for demodulating galileo alternate binary offset carrier (altboc) signals
CA 2579359 C · Owner: Sleewaegen, Jean-Marie · Inventors: Seco Granados, Gonzalo; Sleewaegen, Jean-Marie; De Wilde, Wim
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for demodulating alternate binary offset carrier signals comprising at least two subcarriers (E5a, E5b) each having an in-phase and a quadrature component modulated by pseudo-random codes the quadrature components (E5aQ, E5bQ) being modulated by dataless pilot signals the in-phase components , (E5al, E5bl) being modulated by data signals said method comprising steps of: , converting the alternate binary offset carrier signals into an intermediate frequency; band-pass filtering the converted signals and sampling the filtered signals; generating a carrier phase and carrier phase-rotating the sampled signals by said carrier phase; correlating the rotated sampled signals; and …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed September 7, 2004 and granted May 22, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 7, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 7, 2026.
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