Arbitration logic for multiple bus computer system
CA 2118995 C · Owner: Bland, Patrick Maurice · Inventors: Lohman, Terence Joseph; Boury, Bechara Fouad; Hofmann, Richard Gerard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An arbitration mechanism is provided for use in a computer system which comprises (i) a central processing unit (CPU); (ii) a first system bus which connects the CPU to system memory so that the CPU can read data from and write data to, the system memory; (iii) a second system bus connected to the CPU; (iv) a host bridge connecting the second system bus to a peripheral bus the peripheral bus having at least one peripheral device attached thereto; and (v) an input/output (I/O) bridge connecting the peripheral bus to a standard I/O bus the standard I/O bus having a plurality of standard I/O devices attached thereto. The arbitration mechanism comprises (i) a first level of logic for …
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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 March 14, 1994 and granted April 8, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 14, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 2016.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.