发明名称 |
SECURE EQUIPMENT WHICH IS USED, ON REQUEST, TO DISTRIBUTE, RECORD AND DISPLAY AUDIO-VISUAL WORKS WITH AN MPEG-2 TS-TYPE FORMAT |
摘要 |
The invention relates to a method of distributing audio-visual sequences according to a nominal stream format in compliance with the MPEG-2 TS standard, said sequences comprising a succession of TS packets. The invention is characterised in that, before transmission to the client equipment, the stream is analysed in order to generate (i) a first stream with the MPEG-2 TS format, which is modified through the substitution of all or part of the constituent TS packets by packets having the same structure but with modified contents, and (ii) a second stream having any format and comprising the digital information which can be used to reconstruct the above-mentioned nominal stream. The two streams thus generated are then transmitted separately from the server to the destination equipment. The invention is further characterised in that a synthesis of a stream with the nominal format is calculated on the destination equipment as a function of said first and second streams. The invention also relates to a device for producing a video stream, a device for running a video stream and a system for transmitting a video stream in order to carry out said method. |
申请公布号 |
WO2004073292(A2) |
申请公布日期 |
2004.08.26 |
申请号 |
WO2004FR50046 |
申请日期 |
2004.02.05 |
申请人 |
MEDIALIVE;LECOMTE, DANIEL;GEORGES, SEBASTIEN |
发明人 |
LECOMTE, DANIEL;GEORGES, SEBASTIEN |
分类号 |
H04N7/24;H04N7/26 |
主分类号 |
H04N7/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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