A method and an arrangement in an analog line interface circuit
CA 2326429 A1 · Owner: Telefonaktiebolaget Lm Ericsson · Inventors: Barkaro, Stefan; Randahl, Torbjorn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a line interface circuit for analog broadband applications a terminating , impedance towards a two-wire twisted copper line is set by sensing the line voltage, amplifying the sensed line voltage by a voltage amplification factor converting the amplified voltage into a current buffering and amplifying the , current by a current amplification factor injecting the amplified current , onto the line and adjusting the voltage amplification factor and/or the current amplification factor to set the terminating impedance to a desired value.
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 March 19, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 19, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 19, 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.