Combined xdsl and voice line card
CA 2277534 A1 · Owner: Catena Networks Canada Inc. · Inventors: Boocock, Jonathan; Weirich, Andreas; Deczky, Andrew
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An integrated line card for providing an analog termination for both POTS and xDSL, signals that present the appropriate impedance's at xDSL frequencies for the xDSL, signals and appropriate impedance's at POTS frequencies for POTS signals. The line, card comprises a front end for coupling combined POTS and xDSL transceiver circuits to, a telephone line at a single termination and an impedance generator responsive to the, frequency range of the POTS and the xDSL circuits for generating the appropriate, impedances on the line at xDSL frequencies for xDSL signals and the appropriate, impedances at POTS frequencies for POTS signals such that the signals are , coupled to the card without …
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 13, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 13, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 13, 2021.
- 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.