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Canadian application, no grantCanada

Generalized index set splitting in software loops

CA 2453777 A1 · Owner: Ibm Canada Limited-Ibm Canada Limitee · Inventors: Tal, Arie; Blainey, Robert J.

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

There is disclosed a method and system for determining the bounds of generated software, loops, where the relationships between split points and loop bounds are not known, or only partly, known, at compile time. A "sub-range tree" is built with a root node representing the original, software loop. Each sub-node represents a sub-range of the original software loop split by one or, more split points. Each edge between nodes of the sub-range tree is marked with either a "then", (T) or "else" (E) marker according to a predetermined scheme. Once the subrange tree is built, a "path-from-root" is analyzed for each leaf node of the sub-range tree and , "dead" inductive, control flow branches …

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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 December 19, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 19, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 19, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 19, 2003
GrantedNo grant recorded
Term endedDecember 19, 2023
Patent numberCA 2453777 A1
Classification (IPC)G06F7/00

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedDec 19, 2003Term endedDec 19, 2023

Sources & verification

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