N-by-n "knockout" switch for a high-performance packet switching system
CA 1278848 C · Owner: American Telephone And Telepraph Company · Inventors: Hluchyj, Michael Gene; Acampora, Anthony; Yeh, Yu Shuan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to an N-input N-, output "Knockout" packet switch which uses decentralized control and distributed routing. More particularly within the switch, the N input signals comprising fixedlength packets propagate along separate broadcast buses to each of N bus interface units which include N packet filters, a concentrator and a shared buffer. Each bus interface unit is associated with a separate one of the N outputs of the switch, and the N packet filters therein are each associated with a separate one of the N broadcast buses for detecting if a packet on the associated bus is destined for the associated switch output. The concentrator is used to reduce the number of …
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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 January 8, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 2008.
- 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.