Software barrier synchronization
CA 2419340 A1 · Owner: Ibm Canada Limited - Ibm Canada Limitee · Inventors: Zhang, Guansong; Blainey, Robert J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides an approach for barrier synchronization. The barrier has a, first array of elements with each element of the first array having an associated process, and a, second array of elements with each element of the second array having an associated process. Prior to use, the values or states of the elements in each array may be initialized. As each, process finishes its phase and arrives at the barrier it may update the value , or state of its associated element in the first array. Each process may then proceed to spin at its associated, element in the second array waiting for that element to switch. When the values or states of the, elements of the first array …
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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 20, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 20, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 20, 2025.
- 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.