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Canadian application, no grantCanada

Buffer management for support of quality-of-service guarantees and data flow control in data switching

CA 2355473 A1 · Owner: Chang, Rong-Feng · Inventors: Chang, Rong-Feng; Wang, Linghsiao; Barrack, Craig

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 of utilizing shared memory resources in switching Protocol Data Units (PDUs) at a data switching node is presented. The method includes reserving: a temporary memory storage portion for storing PDUs prior to queuing for processing thereof, a Class-of-Service memory storage portion to provide support Quality-of-Service guarantees, a shared memory-pool portion and an input port memory storage portion enabling non-blocking input port flow control. Provisions are made for PDU discard decisions to be delayed until after PDU headers are inspected subsequent to the receipt of each PDU. Provisions are made for well-behaved data flows conveyed via an input port to be protected against …

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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 August 17, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 17, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 17, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 17, 2001
GrantedNo grant recorded
Term endedAugust 17, 2021
Patent numberCA 2355473 A1
Classification (IPC)H04L47/20 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedAug 17, 2001Term endedAug 17, 2021

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