Variable bit rate scheduler
CA 2187115 C · Owner: Pmc-Sierra Ltd. · Inventors: Wong, David; Ghufran, Salman
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A variable bit rate scheduler for ATM traffic shaping which includes a service rate queue (SRQ) counter for generating a base traffic profile for the control of data transmission on a virtual channel a virtual channel, peak cell rate determinator coupled to said SRQ counter and operative to determine a virtual channel peak cell sub-rate, VC_PCR, a leaky bucket having an input for receiving sub-tokens and an output for discharging tokens and means for adding sub-tokens at the virtual channel peak cell rate to the leaky bucket and, when a cell is to be transmitted removing a number of tokens from the bucket equal to the ratio of a virtual channel sustainable cell rate. The virtual channel …
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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 October 4, 1996 and granted July 17, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 4, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 4, 2018.
- 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.