Network synchronization architecture for a broadband loop carrier (blc) system
CA 2485855 A1 · Owner: Ciena Corporation · Inventors: Dziawa, Michael; Gazier, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A combined wide area network (WAN) port/synchronization unit that receives inputs including data and timing information and that synchronizes the data for transmission. The unit includes the following components. A network interface receives the input and removes data and primary timing information from the input (402). A data-path function processes the data(404). A reference selection unit receives timing information from the network interface as well as timing information from a secondary combined WAN port/synchronization unit(406). A synchronization control unit selects the most reliable timing information from the plurality of timing information inputs to the reference …
Read the whole patent
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 January 31, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 31, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 31, 2025.
- 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.