Nonblocking self-routing packet and circuit switching network
CA 1254641 A · Owner: American Telephone And Telegraph Company · Inventors: Payne, William A. Iii
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A packet switching architecture in which switching network nodes automatically determine nonblocking paths through a switching network in response to address information. The switching network comprises stages of broadcast and routing nodes. The broadcast nodes are responsive to the transmission of address information from an input port to create a plurality of paths though the switching network and to communicate on this plurality of paths the address information to the routing stages. Each of the routing switch nodes is responsive to receipt of address information to select one of the paths to an addressdesignated output port. The final path is established by the output port …
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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
- Granted May 23, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 23, 2006.
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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.