Method and device for guaranteeing the integrity and authenticity of a set of data
CA 2686435 A1 · Owner: Hill, Michael John · Inventors: Sasselli, Marco; Hill, Michael John; Nicolas, Christophe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In order to guarantee the integrity and the authenticity of the data transmitted into a , control center and one or more receiver units each receiver unit includes a , decoder (IRD) and a security unit (SC) and also a means of communication (NET REC) , with , the control center. The method consists of calculating a check information (Hx) representative of the , result of a so-called mono-directional and collision-free function carried , out on all or , only a part of the data transmitted and to transmit the result to the control center for , verification. The center may inform the decoder on the authenticity of the data along the return , paths or the main path.
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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 June 23, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 23, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 23, 2022.
- 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.