Switching network for switching channels
CA 2069240 C · Owner: Beisel, Werner · Inventors: Beisel, Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A connection node (VK) of a data transmission system for switching channels, which are assigned to one or more time slots within the framework of a multiplex time signal, e.g. virtual containers of a STM-1 frame according to CCITT recommendations G.707 to G.709 has a, switching network that consists of switch groups (SCH). The switch groups (SCH) are modular and are linked to each other. Each of the switch groups (SCH) contains a memory (DS) with several independently readable memory outputs (SA1 to SA4), through which the storage area can be accessed. Each of the part signals of each memory address can be connected with a data output of the switch group through selectors SEL1 to SEL4. 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 22, 1992 and granted April 1, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 22, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 22, 2014.
- 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.