Crest factor compensated driver
CA 2380321 A1 · Owner: Bisson, Robert · Inventors: Tremblay, Francois; Bisson, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A telephone line feed circuit for use with a telecommunication line has dual drivers with differing ratio transformer taps (72) and a sensing circuit so that under normal drive conditions a first driver supplies substantially all power through a first transformer of a first turn ratio (Tsp1) under normal in put signal conditions and a second driver supplies substantially all power through a second transformer of second turns ratio (Tsp2) under high crest factor input signal conditions.
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 25, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 25, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 25, 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.