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Canadian application, no grantCanada

Apparatus and method for automatic port identity discovery in heterogenous optical communications systems

CA 2334159 A1 · Owner: Cao, Yang · Inventors: Cao, Yang; Buchanan, William M.; Surek, Steven A.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

In an optical telecommunications network in accordance with the principles of the present invention, a link connection undergoes an automatic port recognition, process, whereby the port binding information for the link is detected recorded, and shared with the network elements connected by the link before the link is, used to transmit bearer traffic. One of a group of optical network elements that, communicate through an out of band channel such as a LAN, is "elected" a, network element leader. After election the leader network element coordinates the port discovery process; requests for port "recognition" responses to , requests, and other messages are passed through the network element …

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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 February 5, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 5, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 5, 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.
FiledFebruary 5, 2001
GrantedNo grant recorded
Term endedFebruary 5, 2021
Patent numberCA 2334159 A1
Classification (IPC)H04L29/02 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedFeb 5, 2001Term endedFeb 5, 2021

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.