ADAPTIVE AND PROGRESSIVE SYSTEM AND METHOD FOR THE SECURE DISTRIBUTION OF WAVELET-CODED STILL IMAGES
    1.
    发明申请
    ADAPTIVE AND PROGRESSIVE SYSTEM AND METHOD FOR THE SECURE DISTRIBUTION OF WAVELET-CODED STILL IMAGES 审中-公开
    自适应和进步的系统和方法,用于安全分配小波编码的静止图像

    公开(公告)号:WO2004068858A3

    公开(公告)日:2004-09-10

    申请号:PCT/FR2004050027

    申请日:2004-01-23

    Abstract: The invention relates to a method for the secure distribution of digital still images in the form of streams comprising sequences of data, each containing part of the image information. The inventive method comprises a modification step involving the modification of the original stream, in which at least one part of the aforementioned data sequences is modified to produce a modified stream with the same nominal format as the original stream. The method also comprises a modified stream transmission step and a reconstruction step using a decoder on the recipient device. The invention is characterised in that the reconstruction is adaptive and progressive according to information originating from a digital profile of the recipient user. Moreover, the original stream is coded using a wavelet coding method. The above-mentioned modification produces a main modified stream and complementary information which enables the original stream to be reconstructed by a decoder. The method comprises a modified stream transmission step and a step involving the transmission of a subset of the complementary modification information to the recipient device, said subset being determined according to information originating from a digital profile of the recipient.

    Abstract translation: 本发明涉及一种用于以数据形式安全地分发数字静止图像的方法,该数据流包括数据序列,每个数据都包含图像信息的一部分。 本发明的方法包括涉及原始流的修改的修改步骤,其中上述数据序列的至少一部分被修改以产生具有与原始流相同的标称格式的修改的流。 该方法还包括在接收设备上使用解码器的修改的流传输步骤和重建步骤。 本发明的特征在于,根据来自接收者用户的数字简档的信息,重建是自适应和渐进的。 此外,使用小波编码方法对原始流进行编码。 上述修改产生主要修改流和互补信息,使得能够由解码器重构原始流。 所述方法包括修改的流传输步骤和涉及将所述补充修改信息的子集传送到所述接收方设备的步骤,所述子集根据来自所述接收者的数字简档的信息确定。

    ADAPTIVE AND GRADUAL PROTECTION OF FIXED IMAGES WHICH ARE CODED IN WAVELETS
    2.
    发明申请
    ADAPTIVE AND GRADUAL PROTECTION OF FIXED IMAGES WHICH ARE CODED IN WAVELETS 审中-公开
    小波中编码的固定图像的自适应和渐变保护

    公开(公告)号:WO2004062287A3

    公开(公告)日:2004-08-26

    申请号:PCT/FR0350192

    申请日:2003-12-19

    Abstract: The invention relates to a method for secure distribution of fixed digital images according to a nominal format arising from digital coding in wavelets, represented by a stream consisting of at least one packet (relating to the organization of the binary sequence) containing at least one block including individual digitally coded elements according to a specific manner inside the stream concerned and used by all decoders able to retrieve or to decode it in order to display the image correctly. The inventive method comprises the following steps: a preparatory stage consisting in modifying at least one of said individual elements according to at least one substitution operation consisting in the extraction of said individual element, followed by the replacement thereof with dummy data; a stage of transmission of the main stream modified according to the nominal format, made up of blocks modified during the preparatory stage, and by a separate path of the main stream of additional digital information, enabling the original stream to be retrieved based on calculation on the target equipment according to the main stream and the additional information.

    Abstract translation: 本发明涉及一种用于根据由小波中的数字编码产生的标称格式来安全分配固定数字图像的方法,该方法由包括至少一个分组(涉及二进制序列的组织)的流表示,该分组包含至少一个块 包括根据相关流内部的特定方式的个别数字编码的元素,并由所有能够检索或解码它以正确显示图像的解码器使用。 本发明的方法包括以下步骤: - 准备阶段,其包括根据至少一个替代操作修改至少一个所述单独元素,其中所述替换操作包括提取所述单独元素,随后用伪数据替换它; 根据标称格式修改的主流的传输阶段,其由在准备阶段修改的块组成,并且由附加数字信息的主流的单独路径组成,使得原始流能够基于 根据主流和附加信息的目标设备。

    METHOD AND SYSTEM FOR THE SECURE DISTRIBUTION OF COMPRESSED DIGITAL TEXTS
    3.
    发明申请
    METHOD AND SYSTEM FOR THE SECURE DISTRIBUTION OF COMPRESSED DIGITAL TEXTS 审中-公开
    压缩数字文本的安全分配方法与系统

    公开(公告)号:WO2005088902A3

    公开(公告)日:2006-07-06

    申请号:PCT/FR2005000553

    申请日:2005-03-08

    CPC classification number: G11B20/00086 G06F21/10 G06F21/6209

    Abstract: The invention relates to a method for the secure distribution of compressed digital texts comprising blocks of binary data and resulting from transformations applied to an original text. The inventive method comprises two steps, namely: a preparatory step consisting in modifying at least one binary datum in one of the aforementioned blocks using at least one substitution operation involving the extraction of said datum from a block and the replacement thereof with a decoy; and a step consisting in transmitting (i) a modified compressed digital text (5) that conforms to the format of the original text, comprising blocks that were modified during the preparatory step, and, over a separate channel from the modified compressed text (5), (ii) a piece of complementary digital information (4) which can be used to restore the original compressed digital text (1) on the destination equipment from the modified compressed digital text (5) and said complementary information (4). The invention also relates to a system which is used to implement said method.

    Abstract translation: 本发明涉及一种用于安全分发包含二进制数据块并由应用于原始文本的变换产生的压缩数字文本的方法。 本发明的方法包括两个步骤,即:准备步骤包括使用涉及从块中提取所述数据并用诱饵替换的至少一个替代操作修改上述块之一中的至少一个二进制数据; 以及包括发送(i)符合原始文本的格式的修改的压缩数字文本(5)的步骤,包括在准备步骤期间被修改的块,以及通过与修改的压缩文本(5 ),(ii)可以用于从修改的压缩数字文本(5)和所述补充信息(4)恢复目的地设备上的原始压缩数字文本(1)的一条互补数字信息(4)。 本发明还涉及一种用于实现所述方法的系统。

    SCRAMBLING, DESCRAMBLING AND SECURE DISTRIBUTION OF AUDIO-VISUAL SEQUENCES FROM VIDEO ENCODERS BASED ON WAVELET PROCESSING
    4.
    发明申请
    SCRAMBLING, DESCRAMBLING AND SECURE DISTRIBUTION OF AUDIO-VISUAL SEQUENCES FROM VIDEO ENCODERS BASED ON WAVELET PROCESSING 审中-公开
    基于小波处理的视频编码器的音视频序列的扫描,解密和安全分配

    公开(公告)号:WO2004095840A2

    公开(公告)日:2004-11-04

    申请号:PCT/FR2004000947

    申请日:2004-04-16

    Abstract: The invention relates to a method and system which are used for the visual scrambling of a video sequence and for the reconstruction (descrambling) of the original content thereof from a digital video stream obtained from encoding based on a wavelet transform. The method for the secure distribution of video sequences according to a digital stream format stems from wavelet-based coding, said format consisting of frames comprising blocks containing wavelet coefficients which describe visual elements. According to the invention, before transmission to the client equipment, the stream is analysed in order to generate (i) a modified main stream through the removal and replacement of certain pieces of information encoding the original stream and having the same format as said original stream, and (ii) a complementary piece of information with any format, comprising digital information which encode the original stream and which can be used to reconstruct the aforementioned modified frames. The modified main stream and the complementary information thus generated are then transmitted separately from the server to the destination equipment and, subsequently, a synthesis of a stream with the nominal format is calculated on the destination equipment as a function of the modified main stream and the complementary information. The invention also relates to a system comprising at least one multimedia server containing the original video sequences, a video stream analysis device, a device for separating the original video stream into a modified main stream and a complementary piece of information according to the aforementioned analysis and at least one device on the destination equipment for the reconstruction of the video stream as a function of the modified main stream and the complementary information.

    Abstract translation: 本发明涉及一种方法和系统,用于视频序列的视觉加扰以及从基于小波变换的编码获得的数字视频流重构(解扰)其原始内容。 用于根据数字流格式安全地分配视频序列的方法源于基于小波的编码,所述格式由包含描述视觉元素的小波系数的块组成。 根据本发明,在传送到客户端设备之前,分析流以便通过去除和替换编码原始流的特定信息段并且具有与所述原始流相同的格式来生成(i)修改的主流 ,和(ii)具有任何格式的补充信息片段,其包括对原始流进行编码的数字信息,并可用于重建上述修改的帧。 然后将经修改的主流和由此产生的补充信息从服务器分离地发送到目的地设备,随后根据修改的主流和目标设备的目的地设备来计算具有标称格式的流的合成,并且 补充信息。 本发明还涉及一种包括至少一个包含原始视频序列的多媒体服务器的系统,视频流分析设备,用于根据上述分析将原始视频流分离成修改主流和补充信息的设备,以及 目的地设备上的至少一个设备,用于根据修改的主流和补充信息来重建视频流。

    DISTRIBUTED AND SECURED METHOD AND SYSTEM FOR PROTECTING AND DISTRIBUTING AUDIO-VISUAL FLOWS
    5.
    发明申请
    DISTRIBUTED AND SECURED METHOD AND SYSTEM FOR PROTECTING AND DISTRIBUTING AUDIO-VISUAL FLOWS 审中-公开
    分布式和安全保护和分发音视频流的方法和系统

    公开(公告)号:WO2005018232A2

    公开(公告)日:2005-02-24

    申请号:PCT/FR2004050381

    申请日:2004-08-11

    Abstract: The invention relates to a method for securely distributing digital audio-visual flows according to a standard format which is normalised or proprietary. Prior to the transmission to a recipient device, said flows are divided into two parts in order to generate a modified main flow having the original flow format and supplementary digital information for reconstructing the original flow. Said invention is characterised in that the main modified flow is transmitted through separate channels from a distribution server during the distribution and said supplementary information is transmitted to the recipient device from a secured central server through a local server connecting said recipient device to said central server through at least one access point.

    Abstract translation: 本发明涉及一种根据标准化或专有的标准格式安全地分发数字视听流的方法。 在传送到接收装置之前,将所述流分为两部分,以便产生具有原始流格式的修改主流,以及用于重构原始流的辅助数字信息。 所述发明的特征在于,在分配期间,主要修改的流量通过单独的信道从分发服务器传输,并且所述补充信息通过本地服务器从安全的中央服务器被发送到接收者设备,该本地服务器通过 至少一个接入点。

    SECURE AUDIO STREAM SCRAMBLING SYSTEM
    6.
    发明申请
    SECURE AUDIO STREAM SCRAMBLING SYSTEM 审中-公开
    安全音频流控制系统

    公开(公告)号:WO2004032418A3

    公开(公告)日:2004-08-05

    申请号:PCT/FR0302913

    申请日:2003-10-03

    Abstract: The invention relates to a method of distributing digital audio sequences according to a nominal stream format consisting of a series of frames. Each of said frames comprises a digital block containing a certain number of coefficients corresponding to simple audio elements which are digitally encoded according to a mode identified in the relevant stream and used by all of the audio decoders capable of doing so, such that the stream can be decoded correctly. The invention is characterised in that it comprises: a preparatory step consisting in modifying at least one of the aforementioned coefficients; and a transmission step involving the transmission of (i) a main stream with the nominal format, which is made up of the blocks modified during the preparatory step, and (ii), using a channel separate from said main stream, complementary digital information which enables the original stream to be reconstructed from the calculation on the recipient device according to the main stream and the complementary information. The invention also relates to a system and a piece of equipment which are used to implement the inventive method.

    Abstract translation: 本发明涉及一种根据由一系列帧组成的标称流格式分配数字音频序列的方法。 每个所述帧包括数字块,其包含对应于根据在相关流中识别并由能够进行这种操作的所有音频解码器使用的模式进行数字编码的简单音频元素的一定数量的系数,使得流可以 正确解码 本发明的特征在于它包括:准备步骤,包括修改上述系数中的至少一个; 以及发送步骤,包括:(i)具有标称格式的主流,其由在准备步骤期间修改的块组成,以及(ii)使用与所述主流分离的信道,互补数字信息 使得能够根据主流和补充信息从收件人设备上的计算重建原始流。 本发明还涉及用于实现本发明的方法的系统和设备。

    ADAPTIVE AND PROGRESSIVE AUDIO STREAM DESCRAMBLING
    7.
    发明申请
    ADAPTIVE AND PROGRESSIVE AUDIO STREAM DESCRAMBLING 审中-公开
    自适应和进步的音频流

    公开(公告)号:WO2004039075A3

    公开(公告)日:2004-07-08

    申请号:PCT/FR0350098

    申请日:2003-10-21

    Abstract: The invention relates to a method of distributing digital audio sequences in the form of streams comprising sequences of data containing digital audio blocks. The inventive method comprises a step involving the modification of the original stream, whereby at least one part of the aforementioned data sequences is modified, said modification producing a modified stream with the same nominal format as the original stream. The method also comprises a modified stream distribution step and a reconstruction step using a decoder. The invention is characterised in that the reconstruction of the original stream is adaptive and progressive according to the information originating from a digital profile of the recipient. In one particular embodiment, the modification step produces a modified main stream and complementary information which enables the original stream to be reconstructed by a decoder, the method comprising a modified stream distribution step and, in addition, a step involving the transmission of a subpart of the above-mentioned complementary modification information to the destination equipment, whereby the subpart is determined according to the information originating from a digital profile of the recipient. The invention also relates to a system for implementing said method.

    Abstract translation: 本发明涉及以包含数字音频块的数据序列的流形式分发数字音频序列的方法。 本发明的方法包括涉及原始流的修改的步骤,由此上述数据序列的至少一部分被修改,所述修改产生具有与原始流相同的标称格式的修改的流。 该方法还包括修改的流分布步骤和使用解码器的重建步骤。 本发明的特征在于,根据从接收者的数字简档起源的信息,原始流的重建是自适应和渐进的。 在一个特定实施例中,修改步骤产生经修改的主流和互补信息,其使得能够由解码器重构原始流,该方法包括修改的流分发步骤,此外,还包括涉及传输子 将上述补充修改信息提供给目的地设备,由此根据来自接收者的数字简档的信息来确定子部分。 本发明还涉及一种用于实现所述方法的系统。

    METHOD FOR DISTRIBUTING VIDEO SEQUENCES, DECODER AND SYSTEM THEREFOR
    8.
    发明申请
    METHOD FOR DISTRIBUTING VIDEO SEQUENCES, DECODER AND SYSTEM THEREFOR 审中-公开
    分配视频序列,解码器和系统的方法

    公开(公告)号:WO2004066627A3

    公开(公告)日:2006-01-19

    申请号:PCT/FR2004050017

    申请日:2004-01-15

    Inventor: LECOMTE DANIEL

    Abstract: The invention concerns a method for distributing video sequences which consists in broadcasting a main digital data stream and a complementary information required for viewing the video sequence, and in reconstituting at the reception site the video stream displayable on an equipment provided with a screen (6). The invention is characterized in that the reception site comprises a personal computer (1), mass storage means (10), a video processing peripheral equipped with means for communicating with the personal computer (1) and transmitting the displayable stream to the display device, the main digital data stream being received by the personal computer (1), the software application for reconstituting the display stream being executed in the video processing peripheral (2). The invention also concerns a decoder (1) and a system for implementing said method.

    Abstract translation: 本发明涉及一种用于分发视频序列的方法,其中包括广播主数字数据流和观看视频序列所需的补充信息,并且在接收站点重新构建可在设置有屏幕(6)的设备上显示的视频流, 。 本发明的特征在于,接收站点包括个人计算机(1),大容量存储装置(10),配备有用于与个人计算机(1)通信并将显示流发送到显示装置的装置的视频处理外围设备, 由个人计算机(1)接收的主数字数据流,用于重构在视频处理外围设备(2)中执行的显示流的软件应用程序。 本发明还涉及一种解码器(1)和用于实现所述方法的系统。

    AUTOMATIC, ADAPTIVE SYSTEM AND METHOD FOR DIGITAL VIDEO STREAM ANALYSIS AND SCRAMBLING
    9.
    发明申请
    AUTOMATIC, ADAPTIVE SYSTEM AND METHOD FOR DIGITAL VIDEO STREAM ANALYSIS AND SCRAMBLING 审中-公开
    自动,自适应系统和数字视频流分析和扫描方法

    公开(公告)号:WO2004071090A2

    公开(公告)日:2004-08-19

    申请号:PCT/FR2004050033

    申请日:2004-01-28

    Abstract: The invention relates to an automatic, adaptive method of scrambling digital video streams. The inventive method comprises the following steps consisting in: analysing the structure and the visual content of the digital video stream, and scrambling said digital video stream. The invention is characterised in that the scrambling step is controlled by an inference or decision-making engine which selects the scrambling tool(s) to be applied to the digital video stream from a library of possible scrambling tools, according to: the analysis step, digital information relating to the characteristics of the user for whom the resulting scrambled digital video stream is intended, and conditions for transferring the digital data resulting from said method in compliance with a database of pre-defined scrambling rules.

    Abstract translation: 本发明涉及一种对数字视频流进行加扰的自动自适应方法。 本发明的方法包括以下步骤:分析数字视频流的结构和视觉内容,并加扰所述数字视频流。 本发明的特征在于,加扰步骤由推理或决策引擎控制,推理或决策引擎根据分析步骤从可能的加密工具的库中选择要应用于数字视频流的加扰工具, 与所产生的扰频数字视频流所针对的用户的特征相关的数字信息,以及根据预定义的加扰规则的数据库传送由所述方法产生的数字数据的条件。

    ADAPTIVE AND PROGRESSIVE AUDIO STREAM SCRAMBLING
    10.
    发明申请
    ADAPTIVE AND PROGRESSIVE AUDIO STREAM SCRAMBLING 审中-公开
    自适应和逐步的音频流加扰

    公开(公告)号:WO2004039053A3

    公开(公告)日:2004-06-24

    申请号:PCT/FR0350099

    申请日:2003-10-21

    Abstract: The invention relates to a method of distributing digital audio sequences according to a nominal stream format, said sequences consisting of a succession of frames each comprising at least one block containing numerous coefficients corresponding to simple digitally-encoded auditory elements. According to the invention, the method comprises a step involving the modification of at least one block of the original stream. The invention is characterised in that the aforementioned modification step acts in an adaptive manner in relation to the original stream according to at least one part of the characteristics representative of the structure, contents and parameters of the original audio stream and the profile of the recipient as well as external events. In one particular embodiment, the modification step consists in replacing part of the coefficients in order to produce (i) a main audio stream with the nominal format and (ii) complementary modification information which enables the original stream to be reconstructed by a decoder belonging to the destination equipment, the range of the modifications being variable and determined by the above-mentioned representative characteristics. The invention also relates to a system for implementing said method.

    Abstract translation: 本发明涉及一种根据名义流格式分配数字音频序列的方法,所述序列由一系列帧组成,每个帧包括至少一个包含对应于简单的数字编码的听觉单元的多个系数的块。 根据本发明,该方法包括涉及修改原始流的至少一个块的步骤。 本发明的特征在于,前述修改步骤根据表示原始音频流的结构,内容和参数的特征的至少一部分以及接收者的简档以与原始流有关的自适应方式进行动作 以及外部事件。 在一个特定实施例中,修改步骤在于替换部分系数以便产生(i)具有标称格式的主音频流和(ii)补充修改信息,其使得原始流能够由属于 目的地设备,修改的范围是可变的并且由上述代表性特征确定。 本发明还涉及用于实现所述方法的系统。

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