Atm repeater
CA 2271879 C · Owner: Nogami, Kazuo · Inventors: Nogami, Kazuo; Ikeda, Katsuhiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ATM repeater realizing high speed hop-by-hop forwarding without employing any high speed processor comprises a processor (11) and a forwarding destination retrieving circuit (12) constituted of hardware. The destination retrieving circuit (12) extracts header information from the received IP packet data and searches an associative memory (21) using the header information as a key. When the corresponding forwarding information cannot be acquired by searching the associative memory (21) a pointer table, (22) for HASH search is searched by using an HASH function. When forwarding information is acquired from a forwarding table (23) as a result of the search, hop-by-hop forwarding of the IP …
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
- Filed September 17, 1998 and granted August 12, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 17, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 17, 2020.
- 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.