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11. 发明公开

EP2605537A1 Device for generating watermark metadata, associated device for embedding watermark 有权转让
标题翻译：用于生成水印元数据的设备，用于嵌入水印的关联设备
公开(公告)号：EP2605537A1
公开(公告)日：2013-06-19
申请号：EP12195383.0
申请日：2012-12-04
申请人： Thomson Licensing
发明人： Doerr, Gwenael , Robert, Antoine
IPC分类号： H04N21/8358 , H04N21/235 , H04N21/2389 , H04N21/2383
CPC分类号： G06T1/0021 , H04N21/235 , H04N21/2383 , H04N21/23892 , H04N21/8358
摘要： The invention relates to a device for generating metadata associated with a content intended to be watermarked with an identifier comprised in a watermark embedder. The device comprises means for generating metadata comprising (i) instructions for deriving payload bits from said identifier, (ii) instructions for embedding each payload bit in said content; and means for transmitting metadata to a watermark embedder, wherein metadata dynamically drive the watermark embedder.
摘要翻译：本发明涉及一种用于生成与旨在用包含在水印嵌入器中的标识符加水印的内容相关联的元数据的设备。该设备包括用于生成元数据的装置，该元数据包括（i）用于从所述标识符导出净荷位的指令，（ii）用于将每个净荷位嵌入到所述内容中的指令; 以及用于将元数据发送到水印嵌入器的装置，其中元数据动态地驱动水印嵌入器。

12. 发明公开

EP2568712A1 Methods and devices for selective format-preserving data encryption 审中-公开
标题翻译： Verfahren und Vorrichtungen zur selektiven，formaterhaltendenDatenverschlüsselung
公开(公告)号：EP2568712A1
公开(公告)日：2013-03-13
申请号：EP12182868.5
申请日：2012-09-04
申请人： Thomson Licensing
发明人： Lefebvre, Frédéric , Baudry, Séverine , Robert, Antoine , Roudot, Philippe
IPC分类号： H04N21/2347 , H04N21/845 , H04N21/2389
CPC分类号： H04N21/845 , H04N21/2362 , H04N21/2389 , H04N21/23895 , H04N21/4345 , H04N21/4385 , H04N21/43853
摘要： Selective data encryption of a file, in particular an H.264/MPEG-4 AVC data stream (300). If a first unit (310) in the data stream (300) is to be encrypted, it is encrypted and the encryption is put into a further unit (410), preferably in the data stream (300). A substitution unit (415) is generated and put in the place of the first unit (310); if necessary, at least one header value is taken from the first unit (310) for use in the substitution unit (415). A decryptor (840) receives the encrypted data stream (400), extracts and decrypts (750) the further unit (410) and replaces the substitution unit (415) with a regenerated first unit.
摘要翻译：文件的选择性数据加密，特别是H.264 / MPEG-4AVC数据流（300）。如果要对数据流（300）中的第一单元（310）进行加密，则将其加密，并且加密被放入另一单元（410）中，优选地在数据流（300）中。产生替代单元（415）并置于第一单元（310）的位置; 如果需要，从第一单元（310）获取至少一个头值，以用于替代单元（415）。解密器（840）接收加密数据流（400），提取并解密（750）另外的单元（410），并用再生的第一单元替换替换单元（415）。

13. 发明公开

EP2568711A1 Methods and devices for selective format-preserving data encryption 审中-公开
标题翻译：用于选择性保存数据加密的方法和设备
公开(公告)号：EP2568711A1
公开(公告)日：2013-03-13
申请号：EP11306136.0
申请日：2011-09-12
申请人： Thomson Licensing
发明人： Lefebvre, Frederic , Baudry, Severine , Robert, Antoine , Roudot, Philippe
IPC分类号： H04N21/2347 , H04N21/845 , H04N21/2389
CPC分类号： H04N21/845 , H04N21/2362 , H04N21/2389 , H04N21/23895 , H04N21/4345 , H04N21/4385 , H04N21/43853
摘要： Selective data encryption of a file, in particular an H.264/MPEG-4 AVC data stream (300). If a first unit (310) in the data stream (300) is to be encrypted, it is encrypted and the encryption is put into a further unit (410), preferably in the data stream (300). A substitution unit (415) is generated and put in the place of the first unit (310); if necessary, at least one header value is taken from the first unit (310) for use in the substitution unit (415). A decryptor (840) receives the encrypted data stream (400), extracts and decrypts (750) the further unit (410) and replaces the substitution unit (415) with a regenerated first unit.
摘要翻译：文件的选择性数据加密，特别是H.264 / MPEG-4 AVC数据流（300）。如果数据流（300）中的第一单元（310）要被加密，则其被加密并且加密被放入另一单元（410）中，优选地在数据流（300）中。替代单元（415）被生成并置于第一单元（310）的位置; 如果需要，从第一单元（310）中取出至少一个标题值用于替代单元（415）中。解密器（840）接收加密的数据流（400），提取并解密（750）另一单元（410），并用再生的第一单元替换替换单元（415）。

14. 发明公开

EP2544143A1 Method for watermark detection using reference blocks comparison 有权转让
标题翻译：使用参考块比较的水印检测方法
公开(公告)号：EP2544143A1
公开(公告)日：2013-01-09
申请号：EP12174263.9
申请日：2012-06-29
申请人： Thomson Licensing
发明人： Baudry, Severine , Robert, Antoine , Lefebvre, Frederic
IPC分类号： G06T1/00 , H04N7/26
CPC分类号： G06T1/005 , G06T2201/0051 , G06T2201/0053 , G06T2201/0061 , G06T2201/0065 , G06T2201/0083
摘要： The invention relates to a method for decoding a watermark embedded in a target video comprising blocks of samples representative of the target video wherein watermark is embedded in an original video by modifying motion vectors of a compressed representation of the original video. The method comprises the steps of determining in the video a location of a watermarked block; determining a location for each reference block among a plurality of reference blocks wherein a reference block is associated to a watermark value among a plurality of watermark values; comparing the watermarked block with each reference block; and identifying watermark value for the watermarked block from the results of the plurality of comparison. The method is remarkable in that each reference block is a potential prediction block also located in the target video, for instance the pirated video, and in that the reference block that corresponds to the best prediction for the watermark block is selected. Thus the plurality of comparisons between the watermarked block and each reference block is performed among the same target video.
摘要翻译：本发明涉及一种用于对嵌入在目标视频中的水印进行解码的方法，该方法包括代表目标视频的样本块，其中通过修改原始视频的压缩表示的运动矢量来将水印嵌入到原始视频中。该方法包括以下步骤：在视频中确定加水印块的位置; 确定多个参考块中的每个参考块的位置，其中参考块与多个水印值中的水印值相关联; 将加水印的块与每个参考块进行比较; 以及从多个比较的结果中识别加水印块的水印值。该方法的显着之处在于每个参考块是也位于目标视频中的潜在预测块，例如盗版视频，并且选择对应于水印块的最佳预测的参考块。因此，在相同的目标视频中执行加水印的块和每个参考块之间的多个比较。

15. 发明公开

EP2843963A1 Method for watermarking a content 审中-公开
标题翻译：对内容加水印的方法
公开(公告)号：EP2843963A1
公开(公告)日：2015-03-04
申请号：EP13306190.3
申请日：2013-08-30
申请人： Thomson Licensing
发明人： Robert, Antoine , Doerr, Gwenaël , Alvarez Gomez, Omar
IPC分类号： H04N21/845 , H04N21/8358 , H04N21/2343 , H04N21/254 , H04N21/2389
CPC分类号： G06F21/16 , G06T1/0021 , H04N1/32144 , H04N21/23439 , H04N21/23892 , H04N21/2541 , H04N21/8358 , H04N21/8456
摘要： The invention relates to a method for watermarking a content, wherein the content is available in different versions on a server for at least a client and wherein the different versions of the content are subdivided into temporally aligned chunks. The method comprises analyzing each version of the content to identify candidate locations for watermarking; determining a watermark insertion rate according to a minimum path, wherein the minimum path comprises, for all sets of temporally aligned chunks, the chunks with the smallest number of candidate locations; and generating watermark embedding metadata for each version of the content based on the watermark insertion rate. The invention further relate to a device for implementing the method.
摘要翻译：本发明涉及一种用于对内容加水印的方法，其中内容在至少一个客户端的服务器上以不同版本可用，并且其中内容的不同版本被细分为时间对齐的块。该方法包括分析内容的每个版本以识别用于加水印的候选位置; 根据最小路径确定水印插入率，其中最小路径包括对于所有组时间对齐的块，具有最小数量的候选位置的块; 以及基于水印插入率为每个版本的内容生成水印嵌入元数据。本发明还涉及用于实现该方法的设备。

16. 发明公开

EP2611065A2 Method for selectively scrambling bit-streams 审中-公开
公开(公告)号：EP2611065A2
公开(公告)日：2013-07-03
申请号：EP12197596.5
申请日：2012-12-17
申请人： Thomson Licensing
发明人： Robert, Antoine , Lefebvre, Frédéric , Chupeau, Bertrand
IPC分类号： H04L9/18 , H04N7/167 , H04N21/2347 , H04N21/4405 , H04N21/235
CPC分类号： H04N7/167 , H04L9/065 , H04L2209/608 , H04N21/23476 , H04N21/2353 , H04N21/44055
摘要： The invention relates to a method for selectively scrambling a coded bit-stream, the method comprising a step of determining at least one modifiable part in the coded bit-stream, wherein the compliance, regarding a coding standard, of a modified coded bit-stream comprising an alternative modifiable part is not affected; a step of selecting at least one modifiable part, wherein the rendering of a compliant modified coded bit-stream comprising selected alternative modifiable part is perceptually affected compared to the rendering of the coded bit-stream; a step of substitution, for each of the at least one selected modifiable part, of original modifiable part in the coded bit-stream by alternative modifiable part resulting in a compliant selectively scrambled bit-stream. The invention also relates to associated method for descrambling.

17. 发明公开

EP2611064A1 Method for selectively scrambling bit-streams 审中-公开
标题翻译： Verfahren zur selektivenVerschlüsselungvonBitströmen
公开(公告)号：EP2611064A1
公开(公告)日：2013-07-03
申请号：EP11306804.3
申请日：2011-12-29
申请人： Thomson Licensing
发明人： Robert, Antoine , Lefebvre, Frédéric , Chupeau, Bertrand
IPC分类号： H04L9/18 , H04N7/167 , H04N21/2347 , H04N21/4405 , H04N21/235
CPC分类号： H04N7/167 , H04L9/065 , H04L2209/608 , H04N21/23476 , H04N21/2353 , H04N21/44055
摘要： The invention relates to a method for selectively scrambling a coded bit-stream, the method comprising a step of determining at least one modifiable part in the coded bit-stream, wherein the compliance, regarding a coding standard, of a modified coded bit-stream comprising an alternative modifiable part is not affected; a step of selecting at least one modifiable part, wherein the rendering of a compliant modified coded bit-stream comprising selected alternative modifiable part is perceptually affected compared to the rendering of the coded bit-stream; a step of substitution, for each of the at least one selected modifiable part, of original modifiable part in the coded bit-stream by alternative modifiable part resulting in a compliant selectively scrambled bit-stream. The invention also relates to associated method for descrambling.
摘要翻译：本发明涉及一种用于选择性地加扰编码比特流的方法，该方法包括确定编码比特流中的至少一个可修改部分的步骤，其中关于编码标准的修改编码比特流包括替代可修改部分不受影响; 选择至少一个可修改部分的步骤，其中包括所选替代可修改部分的兼容修改编码比特流的呈现与编码比特流的呈现相比感知地受到影响; 通过替代的可修改部分替代编码比特流中的原始可修改部分的至少一个所选可修改部分中的每一个，导致顺应性选择性加扰的比特流。本发明还涉及相关的解扰方法。

18. 发明公开

EP2600531A1 Method for determining a modifiable element in a coded bit-stream and associated device 审中-公开
标题翻译：一种用于在编码比特流和相关联的装置来确定修改的元件的方法
公开(公告)号：EP2600531A1
公开(公告)日：2013-06-05
申请号：EP11306596.5
申请日：2011-12-01
申请人： Thomson Licensing
发明人： Robert, Antoine , Baudry, Severine , Lefebvre, Frederic
IPC分类号： H03M7/40 , H03M7/42 , G06T1/00
CPC分类号： H04N19/00412 , G06T1/0035 , G06T2201/0083 , H03M7/4006 , H03M7/4018 , H03M7/4037 , H03M7/42 , H04N19/27 , H04N21/23418 , H04N21/234345 , H04N21/8358
摘要： The invention relates to a method for determining a modifiable element in a coded bit-stream (C o ). The method comprises a step of decoding (E200) a part of the coded bit-stream (C o ); a step of modifying (E201) said part of the coded bit-stream (C o ); a step of decoding (E202) the modified part of the coded bit-stream (C m ); a step of verifying (E203) whether the modified part of the coded bit-stream (C m ) is compliant with the coded bit-stream (C o ); a step of verifying (E203) whether an element (EI m ) in the decoded modified bit-stream, called modifiable element, is different from an element (EI) in the decoded original bit-stream.
The invention also relates to a device for determining a modifiable element in a coded bit-stream.
摘要翻译：本发明涉及一种用于采矿确定性在编码比特流可修改的元件（C O）。该方法包括解码的（E200）的编码比特流的一部分的步骤（C O）; 修改（E201）的步骤说编码比特流的一部分（C O）; 解码的步骤（E202）的编码比特流（C M）的改性部; 验证的步骤（E203）是否编码比特流（C M）的改质部分符合的编码比特流（C O）; 验证元件（EI米）的解码的修改比特流中，被称为修改的元件，上（E203）是否的步骤是解码的原始比特流中从元件（EI）不同。因此本发明涉及一种设备，用于确定采矿在一编码位流可修改的元件。

19. 发明公开

EP2490143A1 Method and device for controlling distribution of licenses 审中-公开
标题翻译： Verfahren und Vorrichtung zur Kontrolle der Lizenzausgabe
公开(公告)号：EP2490143A1
公开(公告)日：2012-08-22
申请号：EP11305132.0
申请日：2011-02-10
申请人： Thomson Licensing
发明人： Monsifrot, Antoine , Doerr, Gwenael , Courtay, Olivier , Robert, Antoine , Joye, Marc
IPC分类号： G06F21/00
CPC分类号： G06F21/105 , G06F21/10
摘要： A method for controlling distribution of licenses (251; 351), a license being for an excerpt (252; 352) of a content item (211; 311), the content item comprising a set (100) of continuous units (110), each excerpt (252; 352) comprising a subset of the set (100) of continuous units. A device (230; 340) receives an identifier of a receiver (230; 330) of a license, and the license (251) or a request (322) to generate the license (351), the license or the request (322) to generate the license (351) comprising a content identifier and at least one indicator of the units covered by the license (251; 351); retrieves stored information regarding licenses previously delivered to the receiver; compares a limit value for the content item with the stored information combined with information from the license or the request (322) to generate the license (351); and allows the receiver access to the license only if the limit value is not exceeded by the stored information combined with information from the license or the request (322) to generate the license (351). Also provided is the device (230; 340).
摘要翻译：一种用于控制许可证分发的方法（251; 351），用于内容项（211; 311）的摘录（252; 352）的许可证，所述内容项包括连续单元（110）的集合（100）每个摘录（252; 352）包括所述组（100）连续单元的子集。设备（230; 340）接收许可证的接收器（230; 330）的标识符，以及许可证（251）或生成许可证的请求（322）（351），许可证或请求（322）以产生许可证（351），其包括内容标识符和许可证所覆盖的单元的至少一个指标（251; 351）; 检索关于先前传送给接收者的许可证的存储信息; 将所述内容项的限制值与存储的信息结合来自所述许可证或所述请求（322）的信息进行比较以生成所述许可证（351）; 并且只有当存储的信息与来自许可证的信息或者请求（322）的信息不超过限制值才允许接收者访问许可证（351）。还提供了装置（230; 340）。

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