Method and device for protection against access to a memory and franking machine using same
CA 2349935 A1 · Owner: Secap (Groupe Pitney Bowes) · Inventors: Dery, Jean-Marc; L'Hote, Frederic
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method for protecting data in a device comprising a microprocessor having at least a debug register. The invention is characterised in that the method comprises an operation which consists in assigning a debug register to the data to be protected (301). Preferably the inventive method comprises, for each break triggered by a debug register assigned to protected data an operation for verifying (302, 303) validity of access.
Read the whole patent
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 23, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 23, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 23, 2021.
- 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.