Switching matrix
CA 1108736 A · Owner: Beirne, Patrick R. · Inventors: Beirne, Patrick R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A non-blocking switching network which has considerably fewer crosspoint switches than would otherwise be expected. The network is comprised of a primary stage having n inputs and m outputs, a plurality of secondary stages each having m inputs and p1, p2,.pp outputs output, mx being connected via switching crosspoints to all of the outputs px, p(x+1) and p(x+3), where x is an integral number of the mth output from 1 to ? output my, being dedicated and connected via switching crosspoints to all of the outputs of the yth secondary stage where y = an, integral number from ? + 1 to m.
Read the whole patent
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
- Granted September 8, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 8, 1998.
- 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.