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Canadian application, no grantCanada

Method and apparatus for controlling traffic flows in a packet-switched network in order to guarantee service performance

CA 2229577 A1 · Owner: Davis, Tom · Inventors: Pezeshki-Esfahani, Hossain; Hung, Anthony; Davis, Tom

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 scheduling device for use in a packet-switched network belonging to the , class of non-work , conserving or idling weighted round robin (WRR) arbiters assigns a new , connection N new, slots in a fixed-length repeating scheduling frame by selecting free slots which are close to idealized, slots that would if assigned, eliminate fitter or cell delay variation. The scheduler is able to, simultaneously determine if a new constant bit rate connection requiring a predetermined bandwidth, conforms to a leaky bucket or GCRA algorithm characterized by a peak packet or cell emission, interval T=1/PCR and a packet or cell delay variation time CDVT, i.e. whether the new connection, is GCRA (T …

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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 February 12, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 12, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 12, 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.
FiledFebruary 12, 1998
GrantedNo grant recorded
Term endedFebruary 12, 2018
Patent numberCA 2229577 A1
Classification (IPC)H04L12/81

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedFeb 12, 1998Term endedFeb 12, 2018

Sources & verification

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