Method for switching applications on a multiple application chip card
CA 2324905 A1 · Owner: Gemplus · Inventors: Garnier, Thierry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns multiple application chip cards capable of being connected to terminals (2) dedicated to an application contained in the card (18). The invention is characterised in that it consists in generating in the chip card an indexed access configuration table (10) for recording for each application, the message (ATR) first octet address (TS) and in a memory (26), the address of the message (ATR) other octets. Said configuration table is addressed by circular indexing (28) at each reset signal (RAZ) transmitted by the terminal and thereby feeds the messages (ATR) to the terminal for analysis. Said indexing is maintained as long as the terminal has not recognised a message …
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 March 17, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 17, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 17, 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.