Isdn interfacing of local area networks
CA 2109633 C · Owner: Mattin, Stephen · Inventors: Gagliardi, Ugo O.; Hsu, Meichum; Mattin, Stephen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ISDN gateway (102) for local area networks comprises at least one circuit board resident at each network for carrying out protocol conversion and other network interface functions (116). Two embodiments of the gateway (102) provide bridger and router gateway services, respectively. To improve bandwidth utilization of the ISDN line while transferring voice or data a B-, channel allocation algorithm executed by the gateway (102) and the ISDN line dynamically allocates bandwidth by monitoring traffic at each destination queue and responsively allocating or deallocating virtual Bchannels. Bandwidth utilization is optimized by packaging data packets into trains that are transmitted to the …
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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 May 24, 1991 and granted October 15, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 24, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 24, 2013.
- 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.