Bandwidth management in a communications system using circuit-switched and packet-switched networks
CA 2381464 A1 · Owner: Tellabs Operations, Inc. · Inventors: Scholtens, Dale; Marsh, Anita B.; Klemm, Michael J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Managing resources in a communications system can include terminating a call delivered over a virtual packet network connection and caching the packet network connection for possible use in carrying narrowband traffic from a subsequent circuit-switched call. The techniques can provide a way to efficiently manage packet-domain bandwidth used for carrying narrowband calls while minimizing signaling demand on the broadband network.
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 August 4, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 4, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 4, 2022.
- 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.