Storage locking control for a plurality of processors which share a common storage unit
CA 1323705 C · Owner: Kregness, Glen Roy · Inventors: Kregness, Glen Roy; Fontaine, Lawrence Richard; Dekarske, Clarence William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a plural processor data processing system a lock, is obtained on a commonly shared storage means that allows for the testing of a control word associated with a selected memory address of a particular data processor wherein each of the data processors of the system is capable of independently requesting a lock on said control word. Lock requests are broadcast to each of the data processors. The lock is then established according to predefined criteria by transmission of the lock requests of all of said processor means at the same time at controlled intervals, and by providing the lock on the control word when the requesting processor is the only processor that is requesting a given …
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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
- Granted October 26, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 26, 2010.
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Timeline
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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.