Multiprocessor system
CA 1291827 C · Owner: Jinzaki, Akira · Inventors: Jinzaki, Akira
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a multiprocessor system, where in each local group a processor and its local memory are included and the, local memory is accessed from the either processor in the same group or other group through a communication media the system according to the present invention is provided with a LOCK flag, a SYNC flag and a control circuit for controlling accesses to the own memory from the own processor and the other group's processor depending on the status of the flags. The LOCK flag inhibits a reading-out the memory from other processor while the own processor is writing therein. The SYNC flag permits reading-out the memory from other processor and inhibits the own processor to write therein. A …
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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 November 5, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 5, 2008.
- 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.