Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 11, 2011
Patent Application Number
11705051
Date Filed
February 12, 2007
Patent Citations Received
Patent Primary Examiner
Patent abstract
This invention relates to a method for the transmission of management data to at least one multimedia unit or a group of multimedia units. This method is characterized in that said management data is sent in the form of at least one authorization message encrypted by means of at least one synchronization key (SK), the sending of said at least one authorization message being repeated cyclically and intended for said multimedia unit or said group of multimedia units, and in that the synchronization key is modified at least during each cycle.
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