Information processing system emulation apparatus and method
CA 2062771 C · Owner: Samsung Electronics Co. Ltd. · Inventors: Dreyfus, Boris; Morss, Stephen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
For use in an information processing system (10) the system including a , system bus (16) having a system address bus (16a) and a system data bus (16b) and at least two data processors (12 and 14) coupled to the system bus, emulation apparatus for enabling a first processor to execute, in conjunction with a second processor a program requiring access to predetermined address locations associated with a specific type of device typically a nonresident , I/O device. The emulation apparatus includes circuitry (30) for detecting an occurrence of an access by the first processor to a predetermined address location, circuitry (50) for halting the first processor before completion of the access …
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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 28, 1990 and granted May 16, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 28, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 28, 2012.
- 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.