Computer bus having page mode memory access
CA 1304523 C · Owner: Lg Lcd, Inc. · Inventors: Lagoy, Brian E. J. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method and apparatus are disclosed for use in a digital computer system having a system bus for interconnecting together various agents. A page mode type of memory access provides for the rapid transmission of a block of data across the bus. Blocked refresh means is also employed which disables, if possible the burst, refresh of the memory until a data transfer is completed. A local processor upon an agent having a memory controlled in such manner is provided a high priority signal line for overriding a current bus transfer for gaining access to the memory. During such a high priority access the blocked refresh means operates in a manner somewhat similar to its operation during the …
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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 June 30, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 30, 2009.
- 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.