Virtual concatenation of optical channels in wdm networks
CA 2353755 A1 · Owner: Alcatel · Inventors: Traverso, Giovanni
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A virtual concatenation method for optical channels in WDM networks is described. In transmission, the method comprises the steps of: providing for a plurality of frames, each frame comprising a byte reserved for a concatenation flag; writing the same predefined value in the concatenation byte of n frames (n=, 1, 2, 3, ...); and transmitting the n frames via n respective channels (.lambda.1, .lambda.2, ... .lambda.n). In reception it comprises the steps of: receiving the first reference frame at one, instant; reading the concatenation byte value of said reference frame; receiving, the remaining signal frames after a respective determined time; reading the value, of the concatenation …
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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 July 25, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 25, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 25, 2023.
- 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.