公开(公告)号：EP1504610B1

公开(公告)日：2007-04-04

申请号：EP03747484.8

申请日：2003-04-30

申请人： FRANCE TELECOM

发明人： CURET, Dominique ,  RELIER, Stéphanie ,  ROUX, Catherine ,  MAISONNEUVE, Antoine

IPC分类号： H04N7/52

CPC分类号： H04N7/52

摘要： The invention relates to a method for the dynamic multiplexing of digital streams which are transmitted in the form of stream units in one channel, each of said stream units bearing a stream identifier which can be used to associate same with the corresponding digital stream. The allocation of an identifier to a digital stream is defined by an allocation table and can vary over time, in such a way as to enable dynamic multiplexing. According to the invention, the aforementioned allocation table bears a version number and, in order to indicate that a change in the version of the allocation table applies to a given digital stream, a burst is transmitted with at least one version change stream unit comprising the current identifier of said digital stream, an indicator which can be used to determine if the stream unit is a version change stream unit and the version number becoming applicable to said digital stream.

公开(公告)号：EP1759482A1

公开(公告)日：2007-03-07

申请号：EP05777131.3

申请日：2005-06-14

申请人： France Telecom S.A.

发明人： NOURRY Pascal ,  RELIER, Stéphanie ,  DAUDE François

IPC分类号： H04L9/12 ,  H04L9/18

CPC分类号： H04L9/065 ,  H04L9/0618 ,  H04L9/12 ,  H04L2209/30

摘要： Digital data blocks are encrypted, each data block that is to be encrypted being associated with a time reference. A value of an initialization vector Vi and an encryption key K are defined. Then, a counter C is obtained for each data block to be encoded, by combining the time reference and the value of the initialization vector. A series of binary encryption elements is obtained via an encryption function taking the encryption key K and counter C as input parameters. The data block is then encrypted by combining it with the series of binary encryption elements.

公开(公告)号：EP2491719A1

公开(公告)日：2012-08-29

申请号：EP10785471.3

申请日：2010-10-14

申请人： France Telecom

发明人： AMONOU, Isabelle ,  CAMMAS, Nathalie ,  PATEUX, Stéphane ,  RELIER, Stéphanie

IPC分类号： H04N7/26

CPC分类号： H04N19/436 ,  H04N19/174 ,  H04N19/70

摘要： The invention relates to a method for encapsulating a plurality of data substreams encoded in a bit stream, an encoded data substream being obtained by means of entropy encoding of a symbol subsequence representing an image or a series of images, said method including a step of creating a bit stream that encapsulates said plurality of substreams. According to the invention, said method is special in that it includes the following steps: - grouping data substreams into substream pairs according to an iterative traversal order predetermined from said plurality of substreams; - from a pair, obtaining a symmetrical pair by means of reversing a data order making up the second substream of the pair; and - concatenating the pairs obtained within a sequence. Said method is also special in that - the step of creating the bit stream includes encapsulating said sequence and information related to a number of substreams and related to the sizes of pairs of symmetrical substreams.

公开(公告)号：EP1121811B1

公开(公告)日：2008-05-21

申请号：EP99947558.5

申请日：1999-10-12

申请人： FRANCE TELECOM ,  TDF

发明人： CURET, Dominique ,  VEILLARD, Michel ,  LOLIVIER, Germain ,  GARAULT, Thérèse ,  HELLEGOUARCH, Gérard ,  DOUTEAU, André ,  RELIER, Stéphanie ,  MADEC, Gérard

IPC分类号： H04N7/58 ,  H04N5/265

CPC分类号： H04N21/23424 ,  H04N21/23611 ,  H04N21/242

摘要： The invention concerns a method for switching video component(s) of a first audio-visual digital programme on the video component(s) of a second audio-visual digital programme, characterised in that it consists in switching on the second programme video component after the switching command and after the end of a picture of the first programme and in substituting, in transmission order, for each non-Intra-coded picture of said second programme a picture whereof the coding is produced independently of the substituted picture image data and of the contents of the images whereto it refers until the next Intra-coded picture of said component of said second programme begins.

公开(公告)号：EP2281395A2

公开(公告)日：2011-02-09

申请号：EP09745975.4

申请日：2009-04-21

申请人： France Telecom

发明人： BERTHELOT, Bertrand ,  RELIER, Stéphanie

IPC分类号： H04N7/24

CPC分类号： H04N21/64792 ,  H04N21/234327 ,  H04N21/2381 ,  H04N21/64322 ,  H04N21/6437

摘要： A video stream coded in a hierarchical manner at least in the form of a base stream and of at least one enhancement stream heightened along one dimension is transmitted via a packet transmission network according to a determined transmission protocol. At the level of a transmission entity is received (21), from an encoder, a first series ordered according to a first order of coded packets relating both to the base stream and to the enhancement stream. Next, a second series of packets is obtained (22), coded according to a second order by grouping said coded packets into groups of N packets, by traversing in the first order the coded packets of the first series, said N packets of one and the same group either all relating to the base stream or all relating to the enhancement stream, N being an integer determined as a function of the transmission network and of the size of the coded packets. Thereafter, packets to be transmitted according to the determined transmission protocol are composed (23), said packets comprising respectively as payload the groups of N successive packets of the second series of coded packets.

摘要翻译： 以基本流的形式以及沿着一个维度增强的增强流的形式以层次的方式编码视频流，并且经由分组传输网络根据所确定的传输协议进行传输。 在传输实体的级别，根据来自编码器的编码分组的第一顺序来排序第一系列。 通过以一级顺序遍历第一个序列的编码数据包，一个和同一组的所有N个数据包全部相关，获得一系列数据包，按照二阶编码，将所述编码数据包分组为N个数据包组 到基本流或全部与增强流相关。 此后，组成要发送的分组，所述分组分别包括作为一系列编码分组的组的有效载荷。

公开(公告)号：EP1504610A1

公开(公告)日：2005-02-09

申请号：EP03747484.8

申请日：2003-04-30

申请人： FRANCE TELECOM

发明人： CURET, Dominique ,  RELIER, Stéphanie ,  ROUX, Catherine ,  MAISONNEUVE, Antoine

IPC分类号： H04N7/52

CPC分类号： H04N7/52

摘要： The invention relates to a method for the dynamic multiplexing of digital streams which are transmitted in the form of stream units in one channel, each of said stream units bearing a stream identifier which can be used to associate same with the corresponding digital stream. The allocation of an identifier to a digital stream is defined by an allocation table and can vary over time, in such a way as to enable dynamic multiplexing. According to the invention, the aforementioned allocation table bears a version number and, in order to indicate that a change in the version of the allocation table applies to a given digital stream, a burst is transmitted with at least one version change stream unit comprising the current identifier of said digital stream, an indicator which can be used to determine if the stream unit is a version change stream unit and the version number becoming applicable to said digital stream.

公开(公告)号：EP1121806B1

公开(公告)日：2006-02-22

申请号：EP99949052.7

申请日：1999-10-14

申请人： FRANCE TELECOM ,  TELEDIFFUSION DE FRANCE, société anonyme

发明人： CURET, Dominique ,  VEILLARD, Michel ,  LOLIVIER, Germain ,  GARAULT, Thérèse ,  HELLEGOUARCH, Gérard ,  DOUTEAU, André ,  RELIER, Stéphanie ,  MADEC, Gérard

IPC分类号： H04N7/24 ,  H04N7/58

CPC分类号： H04N21/23424

摘要： The invention concerns a method for switching a first digital audio-visual programme video component(s) on a second digital audio-visual programme video component(s), which consists in switching on the beginning of the first set of images comprising an Intra-coded picture of the second programme video component encountered after the switching command, and in the transmission order of images, substituting each bidirectionally predictive-coded picture of said first set of images referring to the set of images pertaining to the set of images preceding it before switching, with a bidirectionally predictive-coded picture whereof the video coding is produced independently of the substituted image content and of the contents of the images to which it refers.

摘要翻译： 本发明涉及一种用于在第二数字视听节目视频组件上切换第一数字视听节目视频组件的方法，该方法包括接通第一组图像的开始， 在切换命令之后遇到的第二节目视频分量的编码图像，并且按照图像的发送顺序，将所述第一组图像的每个双向预测编码图像替换为与之前的图像组有关的图像组 利用双向预测编码图像进行切换，其中独立于替换的图像内容和其引用的图像的内容产生视频编码。

公开(公告)号：EP1121811A1

公开(公告)日：2001-08-08

申请号：EP99947558.5

申请日：1999-10-12

申请人： FRANCE TELECOM SA ,  TELEDIFFUSION DE FRANCE S.A.

发明人： CURET, Dominique ,  VEILLARD, Michel ,  LOLIVIER, Germain ,  GARAULT, Thérèse ,  HELLEGOUARCH, Gérard ,  DOUTEAU, André ,  RELIER, Stéphanie ,  MADEC, Gérard

IPC分类号： H04N7/58 ,  H04N5/265

CPC分类号： H04N21/23424 ,  H04N21/23611 ,  H04N21/242

摘要： The invention concerns a method for switching video component(s) of a first audio-visual digital programme on the video component(s) of a second audio-visual digital programme, characterised in that it consists in switching on the second programme video component after the switching command and after the end of a picture of the first programme and in substituting, in transmission order, for each non-Intra-coded picture of said second programme a picture whereof the coding is produced independently of the substituted picture image data and of the contents of the images whereto it refers until the next Intra-coded picture of said component of said second programme begins.

摘要翻译： 本发明涉及一种用于在第二视听数字节目的视频组件上切换第一视听数字节目的视频组件的方法，其特征在于，它包括在第二视听数字节目之后接通第二节目视频组件 切换命令并且在第一节目的画面结束之后并且以传输顺序替换所述第二节目的每个非帧内编码画面的独立于替代画面图像数据而产生编码的画面和 直到所述第二节目的所述分量的下一个帧内编码图像开始为止它所指向的图像的内容。

公开(公告)号：EP1121806A1

公开(公告)日：2001-08-08

申请号：EP99949052.7

申请日：1999-10-14

申请人： FRANCE TELECOM ,  TELEDIFFUSION DE FRANCE, société anonyme

发明人： CURET, Dominique ,  VEILLARD, Michel ,  LOLIVIER, Germain ,  GARAULT, Thérèse ,  HELLEGOUARCH, Gérard ,  DOUTEAU, André ,  RELIER, Stéphanie ,  MADEC, Gérard

IPC分类号： H04N7/24 ,  H04N7/58

CPC分类号： H04N21/23424

摘要： The invention concerns a method for switching a first digital audio-visual programme video component(s) on a second digital audio-visual programme video component(s), which consists in switching on the beginning of the first set of images comprising an Intra-coded picture of the second programme video component encountered after the switching command, and in the transmission order of images, substituting each bidirectionally predictive-coded picture of said first set of images referring to the set of images pertaining to the set of images preceding it before switching, with a bidirectionally predictive-coded picture whereof the video coding is produced independently of the substituted image content and of the contents of the images to which it refers.

摘要翻译： 本发明涉及一种用于在第二数字视听节目视频组件上切换第一数字视听节目视频组件的方法，该方法包括接通第一组图像的开始， 在切换命令之后遇到的第二节目视频分量的编码图像，并且按照图像的发送顺序，将所述第一组图像的每个双向预测编码图像替换为与之前的图像组有关的图像组 利用双向预测编码图像进行切换，其中独立于替换的图像内容和其引用的图像的内容产生视频编码。