Marked audio-visual sequence i.e. tattooing audio-visual flow, distributing method for e.g. global system for mobile communication network, involves transmitting modified main flow and tattooing complementary information to equipment

摘要

#CMT# #/CMT# The method involves generating modified main flow (101) having modified content, and generating a marked complementary sequence including tattooing complementary information (103). Initial audio-visual flow (1) is marked to determine the tattooing audio-visual flow (106) with marked content. A difference between the marked and modified contents is determined, where the complementary information are function of the difference. The modified flow and information are transmitted towards a destination equipment so as to permit the reconstruction of flow (106) at the level of equipment. #CMT# : #/CMT# An independent claim is also included for a system for distributing a marked audiovisual sequence from nominal audiovisual sequence towards destination equipment, comprising a modified flow generating unit. #CMT#USE : #/CMT# Method for distributing a marked audiovisual sequence from a nominal audiovisual sequence towards a destination equipment via a telecommunication network such as Global system for mobile communication, Global packet radio service, and Universal mobile telecommunication system. #CMT#ADVANTAGE : #/CMT# The method permits to transmit the modified flow and tattooing complementary information towards the destination equipment so as to permit the reconstruction of tattooing audio-visual flow at the level of the equipment in a secured manner, thus transmitting the tattooing audiovisual flow in secured manner without knowing the marking information. The tattooing complementary information includes information relative to digital rights associated to the initial audiovisual flow, thus improving the protection of the audiovisual flow against smuggler. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows an architecture of a system for implementing a method for distributing a marked audio visual sequence to a destination equipment 1 : Initial digital audiovisual flow 4 : User management system 101 : Modified main flow 103 : Tattooing complementary information 106 : Tattooing audio-visual flow.