Gps receiver and method for processing gps signals
CA 2667772 C · Owner: Snaptrack, Inc. · Inventors: Krasner, Norman F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A GPS receiver includes management features and optionally the capability to correct for errors in its local oscillator which is used to sample received GPS , signals at an RF frequency from in view satellites. A downconverter is coupled to , the receiver antenna for reducing the RF frequency of received signals to an intermediate frequency (IF) and a digitizer coupled to the downconverter and sampling the IF GPS signals at predetermined rates to produce sampled IF GPS signals. Memory coupled to the digitizer stores the sampled IF GPS signals as a , snapshot, and a digital signal processor (DSP) coupled to the memory performs Fast , Fourier Transform (FFT) operations on the sampled …
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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 October 8, 1996 and granted July 31, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 8, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 8, 2018.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.