Burst server stored switching system and its method
CA 2124249 C · Owner: Nec Corporation · Inventors: Murase, Tutomu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A packet transmission method and apparatus prevents the holding of unavailable links daring packet transmission. An embodiment of the present invention assumes the case of a packet transmission between a transmitting terminal and a receiving terminal over a path which includes seven links and six switches. The third and fifth switches provide first and second intermediate burst servers which have a buffer for temporarily holding a message packet and a function of the packet transmission. The function comprises requesting a link reservation, transmitting a message packet storing a, received-message packet, and releasing reserved links upon completing the transmission of the message packet. …
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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 25, 1994 and granted January 11, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 25, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 25, 2016.
- 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.