Dual rail dilated switching networks
CA 2008903 C · Owner: Padmanabhan, Krishnan · Inventors: Netravali, Arun Narayan; Padmanabhan, Krishnan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for realizing, and a structure for implementing a switching network employing 2x2 switches. The network is dilated in that none of the 2x2 switches concurrently carry an active signal. The method for realizing such a network alters a given non-dilated network by replacing each 2x2 switch in the non-dilated network with a dual rail switch haing a pair of 2x2 interconnected switches and by replacing, each link in the non-dilated network with a pair links. The final output of the dilated network is obtained by adding a combiner final stage which combines the pairs ofsignals to form output signals that parallel the output signals of the given non-dilated network.
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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 January 30, 1990 and granted December 17, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 30, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 30, 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
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.