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Canadian application, no grantCanada

Method and apparatus for fast page mode selection

CA 2056512 A1 · Owner: Mehring, Peter A. · Inventors: Garapetian, Varoujan; Mehring, Peter A.; Becker, Robert

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

In the memory access unit of the present invention the memory request, logic is centralized in the memory management unit (MMU). The MMU instructs the MCU, which interfaces directly with the DRAMs on the type of memory, access to perform. By centralizing the memory requests the MMU is able to, maintain an account of each memory access thereby providing the MMU the, means to determine if a memory access fulfills the requirements of a fast page mode access before a request is made to the MCU. The MMU comprises the row address comparator which can execute the row address comparison in parallel with the cache lookup. Therefore if the cache lookup determines a, memory access is required 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

  • Filed November 28, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 28, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 28, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 28, 1991
GrantedNo grant recorded
Term endedNovember 28, 2011
Patent numberCA 2056512 A1
Classification (IPC)G06F12/06 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedNov 28, 1991Term endedNov 28, 2011

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.