System and apparatus for merging a write event journal and an original storage to produce an updated storage using an event map
CA 2221216 A1 · Owner: Squibb, Mark · Inventors: Squibb, Mark
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for restoring an updated computer storage from a journal of write events and copy of an original storage generates an event map from the journal of write events. The event map permits efficient combination of the contents of the write event journal and the original storage. The event map also enables translation of the event journal into a delta expressing the differences between the original and updated storages. The event map similarly permits efficient merging of a write event journal and an original file stored streaming tape.
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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 14, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 14, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 14, 2019.
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Timeline
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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.