Dynamic insertion and removal of multi-media call-handling resources into/ from video calls to provide calling features
CA 2179834 C · Owner: Pessot, Albert Daniel · Inventors: Gilman, Robert Reagan; Pessot, Albert Daniel; King, Gary Steven
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A switching system (100) inserts H.320 multi-media protocol- terminating resources (156) into an existing call dynamically only when the resources are needed, and also removes the resources from an ongoing call dynamically when the resources are no longer needed whereby the switching system can provide call features such as hold conference, disconnect, drop, andtransfer to an H.320 multi-media call and can do so spontaneously whenever desired during the call, without tying up the resources for the duration of the call even when they are not needed. To extend these capabilities to both single-channel and multi-channel multi-media ISDN BRI calls the switching system associates a plurality of …
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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 June 25, 1996 and granted November 16, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 25, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 2018.
- 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.