Radio receiver
CA 2127828 C · Owner: Lanser Technologies Corporation · Inventors: Panther, Gyles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of receiving a data signal in a radio transceiver comprised of passing an input receive signal through an input bandpass filter having a bandwidth sufficient to reject signals with frequencies equal to or greater than the receive signal frequency plus a first intermediate frequency (IF) signal frequency plus a first standard IF signal frequency and also to reject signals with frequencies less than the receive signal frequency minus twice the first IF frequency downconverting the input filter filtered input receive signal by the transmit frequency to produce the first IF signal, filtering the first IF signal in an LC filter mixing the filtered first IF signal with a local oscillator …
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 July 12, 1994 and granted October 10, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 12, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 12, 2016.
- 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.