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Expired Canadian patentCanada

Multiple network protocol encoder/decoder and data processor

CA 2265692 C · Owner: Nvidia Corporation · Inventors: Koyama, Ryo; Shinohara, Masaru; Burkes, Daniel F.

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Abstract From the Canadian patent

A multiple network protocol encoder/decoder comprising a network protocol layer (101), data handler (102), O.S. State machine (104) and memory manager , (103) state machines implemented at a hardware gate level. Network packets are received from a physical transport level mechanism by the network protocol layer state machine (101) which decodes network protocols such as TCP IP, user Data Protocol (UDP), PPP, and Raw Socket concurrently as each byte is received. Each protocol handler parses and strips header information immediately from the packet, requiring no intermediate memory. The resulting data are passed to the data handler (102) which consists of data state machines (104) that …

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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 September 26, 1997 and granted August 7, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 26, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 26, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 26, 1997
GrantedAugust 7, 2001
Term endedSeptember 26, 2017
Patent numberCA 2265692 C
Classification (IPC)H04J3/16 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedSep 26, 1997Patent grantedAug 7, 2001Term endedSep 26, 2017

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.