Apparatus and method for determination of a receiver position
CA 2374835 A1 · Owner: Raytheon Company · Inventors: Dutka, Stephen C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of accurate determination of a fixed position using global positioning system uses pseudo-range output over a predetermined measurement period from a stand-alone GPS receiver located at the fixed position the , pseudo-range output being measured from an ensemble of space vehicles at each time t over the measurement period, and historical ephemerides of the ensemble of space vehicles over the same measurement period to eliminate errors caused by selective availability. The historical ephemerides of the ensemble of space vehicles corresponding to each measurement time t are determined and using , the pseudo-range output and the historical ephemerides a position solution at , …
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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 January 3, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 3, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 3, 2022.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.