Patents by Inventor Nicolas Fisher

Nicolas Fisher has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for updating the firmware of a security module
    Patent number: 8352734
    Abstract: A method for updating the firmware of a security module allowing it to “jump” towards a dedicated separate patch message stream thanks to a trigger messages stream broadcasted in a main stream of management messages. The trigger messages comprise version information allowing establishing whether the security module is up-to-date, and an identifier indicating to the security module the suitable patch stream. If the current version of the firmware of the security module is inferior to the patch version, the security module is directed towards the stream of patch messages designated by the identifier included in the trigger messages. Once the update of the firmware is complete, the security module is again directed towards the main stream. This return can be carried out automatically, namely with a switch message comprising an identifier of the first stream.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: January 8, 2013
    Assignee: Nagravision S.A.
    Inventors: Xavier Carrel, Olivier Brique, Henri Kudelski, Nicolas Fisher
  • Method for updating the firmware of a security module
    Publication number: 20070174617
    Abstract: A method for updating the firmware of a security module allowing it to “jump” towards a dedicated separate patch message stream thanks to a trigger messages stream broadcasted in a main stream of management messages. The trigger messages comprise version information allowing establishing whether the security module is up-to-date, and an identifier indicating to the security module the suitable patch stream. If the current version of the firmware of the security module is inferior to the patch version, the security module is directed towards the stream of patch messages designated by the identifier included in the trigger messages. Once the update of the firmware is complete, the security module is again directed towards the main stream. This return can be carried out automatically, namely with a switch message comprising an identifier of the first stream.
    Type: Application
    Filed: January 23, 2007
    Publication date: July 26, 2007
    Inventors: Xavier Carrel, Olivier Brique, Henri Kudelski, Nicolas Fisher