Arrangement in a subscriber line interface circuit
CA 2271108 A1 · Owner: Eriksson, Hans · Inventors: Eriksson, Hans
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A control processor (2) is connected to a subscriber line interface circuit (1) to, on the one hand, control the operating mode of the line interface circuit (1) and, on the other hand, monitor via a detector output terminal , (D) of the line interface circuit (1) the status of a line connected to the line interface circuit (1). The control processor (2) is adapted to control the line interface circuit (1) to, on the one hand ensure, at a first point , of time, that its detector output terminal (D) is in a first signal state and on the other hand, at that first point of time initiate measurement of the , line voltage. The line interface circuit (1) is adapted at a second point of , …
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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 November 6, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 6, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 2019.
- 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.