Digital radio communication station
CA 2244562 A1 · Owner: Marque-Pucheu, Gerard · Inventors: Marque-Pucheu, Gerard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The station includes a coded speech signal source (10) having a given digital rate, modulating means (15,16) for producing a radio signal (SR) from the coded speech signal (SN) provided by the source and a redundancy, encoder (18) having a coding rate of the form K/N where K and N are integers, such that 0<K<N. Control means (20) select an operating mode of the station from at least a first operating mode where the modulating means (15) directly receive the coded speech signal (SN) and convert it into a radio signal occupying a determined fraction of time on a carrier frequency and a second, operating mode where the redundancy encoder (18) receives the coded speech signal (SN), and the …
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 August 4, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 4, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 4, 2020.
- 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.