Method for the automatic restart of optical transmitters in fiber optic cable links
CA 2289421 A1 · Owner: Conti, Mariangela · Inventors: Conti, Mariangela
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A new method is described for the automatic restart of optical transmitters in a, fiber optic cable system. Said restart follows the automatic shut-down of the transmitters themselves as a consequence of a fault. The method in accordance with the present invention comprises the steps of periodically sending over the, system, by means of a transmitter a restart pulse and wait for such pulse which, is received/retransmitted by further receivers/transmitters to come back within a, given time interval, to the transmission point and is characterized in that it further, comprises the step of increasing the restart pulse duration by a certain amount, whenever it is received/retransmitted. Thus …
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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 12, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 12, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 12, 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
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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.