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Canadian application, no grantCanada

Method and apparatus for cross-connecting data streams with efficient memory utilization and transparent protocol conversion

CA 2293066 A1 · Owner: Nortel Networks Corporation · Inventors: Hammermeister, Karl H.; Kusyk, Richard G.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A method and system enable cross connection of an incoming data stream to one or more outgoing data streams. Each data stream comprises respective incoming and outgoing Synchronous Payload Envelopes (SPE's). Each SPE includes one or more rows, and each row comprises a respective plurality of data segments. A reserved memory space is provided having a data storage capacity equal to an integer multiple of a data segment and less than one complete row. A data segment of an incoming row of an incoming SPE is written to the reserved memory space. Subsequently the, data segment of the incoming row is read to an outgoing row of an outgoing SPE from the reserved memory space. The writing and …

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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 December 20, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 20, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 20, 1999
GrantedNo grant recorded
Term endedDecember 20, 2019
Patent numberCA 2293066 A1
Classification (IPC)H04Q3/52 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedDec 20, 1999Term endedDec 20, 2019

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