公开(公告)号：US08489968B2

公开(公告)日：2013-07-16

申请号：US12736651

申请日：2009-05-06

申请人： Cedric Marin ,  Michel Kieffer ,  Pierre Duhamel

发明人： Cedric Marin ,  Michel Kieffer ,  Pierre Duhamel

IPC分类号： H03M13/00

CPC分类号： H04L1/0072 ,  H04L1/0039 ,  H04L1/0055

摘要： A method for recovering transmission errors, comprising: receiving a data packet comprising an error detection code associated to data contained in the packet, wherein the data associated to the error detection code comprises primary data and secondary data, checking the error detection code of the received packet to detect an erroneous state of the associated data, when the erroneous state is detected, determining a finite set of candidate values for the primary data and, for each values of the set: determining a marginal likelihood of the candidate value as a function of the error detection code of the received packet, determining a first correlation between the primary data of the received packet and the candidate value, and selecting a corrected value for the primary data among the set of candidate values as a function of said marginal likelihoods and said first correlations.

摘要翻译： 一种用于恢复传输错误的方法，包括：接收包括与所述分组中包含的数据相关联的错误检测码的数据分组，其中与所述错误检测码相关联的数据包括主数据和次数据，检查所接收到的错误检测码 分组以检测相关数据的错误状态，当检测到错误状态时，确定用于主数据的候选值的有限集合，以及针对集合的每个值：确定候选值的边际可能性作为 接收分组的错误检测码，确定接收分组的主数据与候选值之间的第一相关性，并且根据所述边际可能性和所述边缘可能性的函数来选择候选值集合中的主数据的校正值， 第一次相关。

公开(公告)号：US20090323812A1

公开(公告)日：2009-12-31

申请号：US12332062

申请日：2008-12-10

申请人： Yann Leprovost ,  Cedric Marin

发明人： Yann Leprovost ,  Cedric Marin

IPC分类号： H04N7/26 ,  H04N7/24

CPC分类号： H04N19/577 ,  H04N19/166 ,  H04N19/573 ,  H04N19/61 ,  H04N19/895

摘要： Process for delivering a video stream over a wireless channel, wherein the video frames of the video stream are encoded by defining partitions of the video frames, said encoding being done by determining predictions for the partitions, a prediction being based on two reference areas (A1, A2) each of independent reference frames of the video stream; one motion vector associated to each reference area (A1, A2); and a weighting factor (W1, W2) for each motion vector; wherein the difference between partition and corresponding predicted partition is done in order to establish a partition residual, the encoded video stream with partition residuals are transmitted to a video decoder in order to decode predicted partition of the video stream by using the two reference areas (A1, A2), the motion vectors and weighting factor based on encoded weighting factor (W1, W2) balanced by a transmission error probability (PA1, PA2) computed for each reference area (A1, A2), decoded partition (M) of the video frame being formed by combination of decoded predicted partition and corresponding partition residual.

摘要翻译： 用于通过无线信道递送视频流的过程，其中视频流的视频帧通过定义视频帧的分区进行编码，所述编码通过确定分区的预测来完成，预测基于两个参考区域（A1 ，A2）视频流的独立参考帧中的每一个; 与每个参考区域（A1，A2）相关联的一个运动矢量; 和每个运动矢量的权重因子（W1，W2）; 其中分区和对应的预测分区之间的差异是为了建立分区残差而完成的，具有划分残差的编码视频流被传送到视频解码器，以通过使用两个参考区域（A1）解码视频流的预测分区 ，A2），基于通过针对每个参考区域（A1，A2）计算的传输错误概率（PA1，PA2），视频的解码分区（M））平衡的编码加权因子（W1，W2）的运动矢量和加权因子 帧由经解码的预测分区和对应分区残差的组合形成。

公开(公告)号：US20110087952A1

公开(公告)日：2011-04-14

申请号：US12736670

申请日：2009-05-06

申请人： Cedric Marin ,  Michel Kieffer ,  Pierre Duhamel

发明人： Cedric Marin ,  Michel Kieffer ,  Pierre Duhamel

IPC分类号： H03M13/25 ,  G06F11/10

CPC分类号： H04L1/0055 ,  H04L1/0039 ,  H04L1/0072

摘要： A method for recovering transmission errors, comprising: receiving a data packet (50) comprising an error detection code (51) associated to data contained in the packet, wherein the data associated to the error detection code comprises primary data (52) and secondary data (53), checking the error detection code of the received packet to detect an erroneous state of the associated data, when the erroneous state is detected, (86) determining a finite set of candidate values for the primary data and, for each candidate values of the set: determining a marginal likelihood of the candidate value as a function of the error detection code of the received packet, determining a first correlation between the primary data of the received packet and the candidate value, and selecting a corrected value for the primary data among the set of candidate values as a function of said marginal likelihoods and said first correlations.

摘要翻译： 一种用于恢复传输错误的方法，包括：接收包括与所述分组中包含的数据相关联的错误检测码（51）的数据分组（50），其中与所述错误检测码相关联的数据包括主数据（52）和次数据 （53），当检测到错误状态时，检查接收到的分组的错误检测码以检测相关数据的错误状态，（86）确定主数据的候选值的有限集合，并且对于每个候选值 确定作为接收分组的错误检测码的函数的候选值的边际似然度，确定接收分组的主数据与候选值之间的第一相关性，并且选择校正值 所述候选值集合中的数据作为所述边际可能性和所述第一相关性的函数。

公开(公告)号：US20090180542A1

公开(公告)日：2009-07-16

申请号：US12332125

申请日：2008-12-10

申请人： Yann Leprovost ,  Cedric Marin

发明人： Yann Leprovost ,  Cedric Marin

IPC分类号： H04N7/26

CPC分类号： H04L1/0014 ,  H04L1/0026 ,  H04L1/0084 ,  H04N19/105 ,  H04N19/147 ,  H04N19/176 ,  H04N19/19 ,  H04N19/51 ,  H04N19/52 ,  H04N19/61 ,  H04N19/89

摘要： Process for delivering a video stream over a bidirectional wireless channel between a video encoder and a video decoder, wherein the video frames of the video stream are encoded by determining predictions (M) for defined partitions of the video frames, a prediction (M) being based on at least one reference area of a reference frame of the video stream; one motion vector associated to said reference area; and a weighting factor associated to said reference area; wherein the difference between partition and corresponding predicted partition (M) is done to establish a partition residual, the encoded video stream with partition residual are transmitted to the video decoder to decode predicted partition (M), decoded partition (A) of the video frame being formed by combination of decoded predicted partition and corresponding partition residual; and wherein a transmission error probability (PA) of the decoded partition A is fed back to the video encoder, said transmission error probability being used in the cost function (J) of the motion estimation algorithm of the decoded partition (A) as reference area.

摘要翻译： 用于通过视频编码器和视频解码器之间的双向无线信道递送视频流的过程，其中视频流的视频帧通过确定视频帧的定义分区的预测（M）来编码，预测（M） 基于视频流的参考帧的至少一个参考区域; 与所述参考区域相关联的一个运动矢量; 以及与所述参考区域相关联的加权因子; 其中分区与对应的预测分区（M）之间的差异被完成以建立分区残差，具有分区残差的编码视频流被发送到视频解码器以解码预测分区（M），视频帧的解码分区（A） 通过解码预测分区和对应分区残差的组合形成; 并且其中所述解码分区A的传输错误概率（PA）被反馈给所述视频编码器，所述传输错误概率在所述解码分区（A）的运动估计算法的成本函数（J）中用作参考区域 。

公开(公告)号：US08295352B2

公开(公告)日：2012-10-23

申请号：US12332125

申请日：2008-12-10

申请人： Yann Leprovost ,  Cedric Marin

发明人： Yann Leprovost ,  Cedric Marin

IPC分类号： H04N7/12

CPC分类号： H04L1/0014 ,  H04L1/0026 ,  H04L1/0084 ,  H04N19/105 ,  H04N19/147 ,  H04N19/176 ,  H04N19/19 ,  H04N19/51 ,  H04N19/52 ,  H04N19/61 ,  H04N19/89

摘要： A process for delivering a video stream over a bidirectional wireless channel between a video encoder and a video decoder, is provided. The video frames of the video stream are encoded by determining predictions for defined partitions of the video frames, a prediction being based on at least one reference area of a reference frame of the video stream; one motion vector associated to said reference area; and a weighting factor associated to said reference area. The difference between partition and corresponding predicted partition is done to establish a partition residual, the encoded video stream with partition residual are transmitted to the video decoder to decode predicted partition, decoded partition of the video frame being formed by combination of decoded predicted partition and corresponding partition residual. A transmission error probability of the decoded partition is fed back to the video encoder.

摘要翻译： 提供了一种在视频编码器和视频解码器之间通过双向无线信道传送视频流的过程。 视频流的视频帧通过确定视频帧的定义分区的预测来进行编码，预测基于视频流的参考帧的至少一个参考区域; 与所述参考区域相关联的一个运动矢量; 以及与所述参考区域相关联的加权因子。 完成分区与对应的预测分区之间的区别，建立分区残差，将具有分区残差的编码视频流传输到视频解码器，解码预测分区，解码分割视频帧由经解码的预测分区和相应的 分区残差。 解码分区的传输错误概率被反馈给视频编码器。

公开(公告)号：US20110083032A1

公开(公告)日：2011-04-07

申请号：US12736651

申请日：2009-05-06

申请人： Cedric Marin ,  Michel Kieffer ,  Pierre Duhamel

发明人： Cedric Marin ,  Michel Kieffer ,  Pierre Duhamel

IPC分类号： G06F11/08

CPC分类号： H04L1/0072 ,  H04L1/0039 ,  H04L1/0055

摘要： A permeable protocol layer decoder (10) for decoding a protocol data unit comprises an error detection code checking means (2) for checking an error detection code of the protocol data unit to detect an erroneous state of the control data, and a control data correction means (6) operable to determine a finite set of candidate values for the control data, to determine error detection code values associated to the candidate values of the set, to determine first correlations between the control data of the received protocol data unit and the respective candidate values, to determine second correlations between the error detection code of the received protocol data unit and error detection code values associated to the respective candidate values, and to select a corrected value of the control data among the set of candidate values as a function of said first and second correlations.

摘要翻译： 用于解码协议数据单元的可渗透协议层解码器（10）包括：检错协议数据单元的错误检测码检测控制数据的错误状态的检错码检测装置（2） 用于确定所述控制数据的候选值的有限集合的装置（6），用于确定与所述集合的候选值相关联的错误检测码值，以确定所接收的协议数据单元的控制数据与相应的 候选值，以确定接收的协议数据单元的错误检测码与与各个候选值相关联的错误检测码值之间的第二相关性，并且选择作为候选值的函数的候选值集合中的控制数据的校正值 说第一和第二个相关。

公开(公告)号：US08458570B2

公开(公告)日：2013-06-04

申请号：US12736670

申请日：2009-05-06

申请人： Cedric Marin ,  Michel Kieffer ,  Pierre Duhamel

发明人： Cedric Marin ,  Michel Kieffer ,  Pierre Duhamel

IPC分类号： H03M13/00

CPC分类号： H04L1/0055 ,  H04L1/0039 ,  H04L1/0072

摘要： A method for recovering transmission errors, comprising: receiving a data packet comprising an error detection code associated to data contained in the packet, wherein the data associated to the error detection code comprises primary data and secondary data, checking the error detection code of the received packet to detect an erroneous state of the associated data, when the erroneous state is detected, determining a finite set of candidate values for the primary data and, for each values of the set: determining a marginal likelihood of the candidate value as a function of the error detection code of the received packet, determining a first correlation between the primary data of the received packet and the candidate value, and selecting a corrected value for the primary data among the set of candidate values as a function of said marginal likelihoods and said first correlations.

公开(公告)号：US20080247323A1

公开(公告)日：2008-10-09

申请号：US12046397

申请日：2008-03-11

申请人： Vinod Kumar ,  Yann Leprovost ,  Cedric Marin

发明人： Vinod Kumar ,  Yann Leprovost ,  Cedric Marin

IPC分类号： G01R31/08

CPC分类号： H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0083

摘要： A method of transmitting data packets over an air interface is disclosed. At least a first and second stream of data packets are multiplexed, wherein a multiplexed stream of data packets is generated. The multiplexed stream of data packets is processed by a forward error correction function, wherein the forward error correction function adds redundancy bits to the multiplexed stream of data packets, wherein a third stream of data packets is generated, and wherein the redundancy bits are used for an error control to be performed on the third stream of data packets. The third stream of data packets is then transmitted over the air interface.

摘要翻译： 公开了一种通过空中接口传输数据包的方法。 至少第一和第二数据包流被复用，其中产生多路复用数据包流。 数据分组的复用流由前向纠错功能处理，其中前向纠错功能将冗余比特添加到多路复用数据分组流中，其中生成第三数据分组流，并且其中冗余比特用于 对第三数据包流执行的错误控制。 然后通过空中接口传输第三个数据包流。