Method and apparatus for backing up application code upon power failure during a code update
CA 2396100 A1 · Owner: Liu, Xiaodong · Inventors: Dinwiddie, Aaron Hal; Liu, Xiaodong
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system, method and apparatus for updating computer code in a computer controlled device overcome glitches in updating of the computer code. The present invention allows upgrading of the computer code via any upgrade channel or mechanism. In one form, back-up code corresponding to application code is stored in memory. Upon a power failure or other glitch in which the application code becomes corrupt, back-up code is utilized by the boot code to provide a version of the application code for operation of the computer controlled device. In one form, the upgrade is accomplished via a smart card.
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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 January 4, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 4, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 4, 2023.
- 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.