Receiver capable of parallel demodulation of messages
CA 2373269 A1 · Owner: Irving, Clive Russell · Inventors: Irving, Clive Russell; Summers, Andrew Gordon; Luxford, Gregory Vincent
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A receiver (100) which is capable of receiving in parallel data transmitted at arbitrary frequencies within a radio channel includes: a radio frequency (RF) front-end to convert an RF signal to a digitized signal; a Fast Fourier Transform (FFT) generator (130) coupled to the RF front-end to separate the digitized signal into a plurality of sub-channels; a band of phase locked loops (PLLs)(132) coupled to the FFT generator (130) each PLL operating on a , sub-channel with a sub-channel center; and a flag detector (131) coupled to the bank of PLLs (132) to detect variations from the sub-channel center and to recover the usage data transmitted from the end-point.
Read the whole patent
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 May 17, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 17, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 17, 2022.
- 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.