Method of processing the signalling information within configurable multiplexers
CA 2032597 C · Owner: Zumsteg, Michael · Inventors: Zumsteg, Michael; Rickenbach, Hans E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In configurable intelligent primary multiplexers the individual 64 kbit/s channels of several incoming and outgoing PCM-links are are to be re-arranged with the aid of a commercially available integrated circuit in such a manner that the desired channel configuration is achieved. The signalling information belonging to the individual channels is transmitted for all intelligence channels of a link in the time slots No. 16 of the superframe each, time slot containing the signalling information of two channels. In order to be able to perform the re-arrangement of the signalling information in parallel to that of the intelligence channels without the continuous help of a processor 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 December 18, 1990 and granted October 19, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 18, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 2012.
- 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
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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.