Method for transmitting encrypted data, associated decrypting method, device for carrying out said methods and a mobile terminal for the incorporation thereof
CA 2493882 C · Owner: Marque-Pucheu, Gerard · Inventors: Marque-Pucheu, Gerard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for transmitting encrypted data through a transmission radio channel which has a frame structure similar to a TDMA frame and comprises at least first type time intervals forming a traffic channel and at least one second type time interval forming an associated signalling channel. The inventive method consists in transmitting a first sequence (c¿j?) of encrypted data packets to the traffic channel from the determined first type time interval an associated cryptographic synchronisation information (CSI¿j?) being transmitted to said associated signalling channel within the determined first type time interval and in transmitting a synchronisation cryptographic …
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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 July 21, 2003 and granted December 23, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 21, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 21, 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.
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.