Invention Grant
- Patent Title: Method for the transmission of management data
- Patent Title (中): 传输管理数据的方法
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Application No.: US11705051Application Date: 2007-02-12
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Publication No.: US08036387B2Publication Date: 2011-10-11
- Inventor: Henri Kudelski , Joël Conus
- Applicant: Henri Kudelski , Joël Conus
- Applicant Address: CH Cheseaux-Sur-Lausanne
- Assignee: Nagra Vision S.A.
- Current Assignee: Nagra Vision S.A.
- Current Assignee Address: CH Cheseaux-Sur-Lausanne
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: EP06110338 20060223
- Main IPC: H04L9/08
- IPC: H04L9/08 ; H04L9/32
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.
Public/Granted literature
- US20070195950A1 Method for the transmission of management data Public/Granted day:2007-08-23
Information query
