Method and apparatus for supplying power to a twisted pair wire on a telecommunications modem transmission link
CA 2305989 A1 · Owner: Steinke, Paul D. · Inventors: Biondo, Jay T.; Cook, Joan M.; Keane, Scott M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A circuit and supplemental power source connection scheme for a telecommunications modem transmission link are described. The supplemental power, source is connectable at any point along a telecommunications wire including , the, terminals of repeaters and remote terminals. The combiner circuit includes a diode bridge, for ensuring the proper connection of externally connected high voltage power to internal, circuitry of the power combiner. The combiner also includes a line polarity matching, circuit that automatically configures to signally connect internal positive and negative, voltage signals to corresponding positive and negative external signal lines on a, telecommunications …
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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 April 18, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 18, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 18, 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
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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.