Method and apparatus for grammatical packet classifier
CA 2307529 A1 · Owner: Liao, Heng · Inventors: Liao, Heng
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A packet classification language (GPCL) is provided to specify protocol hierarchies among, data packets in a routing device. The GPCL uses regular expressions to match incoming data, packets and a syntax to describe the protocol hierarchy. A GPCL compiler produces an, enhanced DFA which incorporates the regular expression for recognizing constituent parts of, a data packets and which incorporates the grammar graph defining the relationships among, the constituent parts. A hardware implemented DFA is used to scan the input stream which, constitutes the data packets.
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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 4, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 4, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 4, 2022.
- 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.