Hybrid wdm/tdm network architecture
CA 2458848 A1 · Owner: Nortel Networks Limited · Inventors: Melaragni, William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for configuring a server/client network architecture. A server network device impresses an optical signal onto an optical link at a specified wavelength, where distinct wavelengths are associated with one or more of a plurality of client devices. Thus the server addresses a specified , client device thereby polling the specified device for a response. An optical demultiplexer/combiner directs the server optical signal to the specified recipient client device on the basis of the wavelength of the server optical signal, and combines all responses on the client devices for transmission back to the server. Any transmission by the specified client device in response …
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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 May 20, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 20, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 20, 2024.
- 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.