Multiplexing system and method for integrated voice and data transmission on network
CA 2272086 C · Owner: Sherif, Mostafa Hashem · Inventors: Sherif, Mostafa Hashem; Tewani, Kamlesh T.; Burg, Frederick Murray
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An integrated sub-rate multiplexing system and method optimizes use of transmission bandwidth in integrated networks. For example transmission , capacity of the Public Switched Telephone Network (PSTN) is assigned to various traffic types according to the instantaneous needs illustratively in , an enhanced (T1, T2) -environment. When speech and data packets compete for bandwidth under certain conditions portions of data are concatenated to the voice segment, increasing bandwidth efficiency.
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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 October 23, 1998 and granted August 12, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 23, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 23, 2020.
- 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.