Device for supplying output data in reaction to input data, method for checking authenticity and method for encrypted data transmission
CA 2344429 C · Owner: Korte, Olaf · Inventors: Oelmaier, Florian; Plankenbuhler, Roland; Korte, Olaf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for supplying output data in reaction to input data so as to , determine the authen-, ticity of the device in dependence upon the output data comprises an , electronic circuit for, executing an algorithm which generates the output data on the basis of said input data, and, a unit for detecting operational data which are influenced by an operation of the electronic, circuit. The operational data detection unit is coupled to the electronic circuit in such a way, that the operational data of the electronic circuit are used by the algorithm for generating, the output data. Safety of the device according to the present invention is enhanced in that, a potential counterfeiter wilt …
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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 August 27, 1999 and granted December 23, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 27, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 27, 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
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Sources & verification
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.