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1. 发明申请

WO2010066778A1 METHOD FOR TURBO EQUALIZATION OF ZARRAY CODED WORDS 审中-公开
标题翻译： ZARRAY编码字的涡轮均衡方法
公开(公告)号：WO2010066778A1
公开(公告)日：2010-06-17
申请号：PCT/EP2009/066708
申请日：2009-12-09
申请人： THOMSON LICENSING , THEIS, Oliver , CHEN, Xiao-Ming
发明人： THEIS, Oliver , CHEN, Xiao-Ming
IPC分类号： H03M13/11 , H03M13/27 , H03M13/29
CPC分类号： H03M13/1102 , H03M5/145 , H03M13/2707 , H03M13/2957 , H03M13/2975 , H03M13/3753 , H03M13/6331 , H03M13/6343
摘要： For turbo equalization decoding of received binary words that were zArray coded, the invention proposes a method comprising super trellis code block detecting (401) and LDPC code block decoding (403). For decreasing the bit error rate in the presence of colored noise while minimizing the number of iterations, block interleaving is used, and within the step of LDPC code block decoding (403) a success flag (d) for every codeword is set (409) if the estimated codeword remains unchanged in an iteration, and LDPC code word decoding (408) is skipped (413, 412, 415) if the success flag (d) of the codeword is set (413).
摘要翻译：对于采用zArray编码的接收二进制字进行turbo均衡解码，本发明提出了一种包括超格式码块检测（401）和LDPC码块解码（403）的方法。为了在有色噪声的存在下降低误码率，同时最小化迭代次数，使用块交织，并且在LDPC码块解码（403）的步骤内，设置每个码字的成功标志（d）（409）如果所估计的码字在迭代中保持不变，并且如果码字的成功标志（d）被设置（413），则LDPC码字解码（408）被跳过（413,412,415）。

2. 发明申请

WO2010043570A2 METHOD AND APPARATUS FOR ALGEBRAIC ERASURE DECODING 审中-公开
标题翻译：用于代数擦除解码的方法和装置
公开(公告)号：WO2010043570A2
公开(公告)日：2010-04-22
申请号：PCT/EP2009/063204
申请日：2009-10-09
申请人： THOMSON LICENSING , THEIS, Oliver , CHEN, Xiao-Ming , GEORGI, Marco
发明人： THEIS, Oliver , CHEN, Xiao-Ming , GEORGI, Marco
IPC分类号： H03M13/00
CPC分类号： H03M13/455 , H03M13/116 , H03M13/118 , H03M13/1185 , H03M13/373 , H03M13/6561
摘要： For correcting a multibit, LDPC coded codeword where one or two multibit symbols within the codeword are known to be erroneous, a method is proposed, where the position of the erroneous multibit symbols is checked for correctability, where the subset of the codeword that is not indicated as erroneous is GF2- multiplied with a corresponding subset of the parity check matrix of the LDPC code resulting in an interim vector, and where the erroneous parts of the codeword are reconstructed such that they, when GF2-multiplied to their associated parts of the parity check matrix, yield the same interim vector.
摘要翻译：为了校正码字中的一个或两个多位符号已知是错误的多位LDPC编码码字，提出了一种方法，其中错误的多位符号的位置被检查可纠正性，其中码字的子集不是被指示为错误的GF2与产生中间向量的LDPC码的奇偶校验矩阵的对应子集相乘，并且其中重构码字的错误部分，使得当GF2乘以其相关部分奇偶校验矩阵，产生相同的临时向量。

3. 发明申请

WO2014161785A1 METHOD AND APPARATUS FOR DETERMINING WATERMARK SYMBOLS IN A RECEIVED AUDIO SIGNAL THAT CAN CONTAIN ECHOES, REVERBERATION AND/OR NOISE 审中-公开
标题翻译：用于确定可以包含ECHOES，REVERBERATION和/或NOISE的接收音频信号中的水标记的方法和装置
公开(公告)号：WO2014161785A1
公开(公告)日：2014-10-09
申请号：PCT/EP2014/056304
申请日：2014-03-28
申请人： THOMSON LICENSING
发明人： CHEN, Xiao-Ming , BAUM, Peter Georg , ARNOLD, Michael , GRIES, Ulrich
IPC分类号： G10L19/018
CPC分类号： G10L19/018 , G06F2221/0733 , G11B20/00884 , G11B20/00891
摘要： Following transmission of a watermarked audio signal over an acoustic path causing echoes, reverberation and/or noise, watermark detection correlation result peak values are concentrated within a limited temporal range around main correlation result peaks, which limited temporal range is much smaller than the total correlation length. The watermark detection is based on the following: given n p correlation result peak values v = ( v 1 , v 2 ,..., v np ) in an average or expected probability distribution for correlation result values for unmarked content, the probability is calculated that within windows covering the limited temporal range there are n p or more values from a correlation result value set greater than or equal to these peaks v .
摘要翻译：在通过导致回波，混响和/或噪声的声学路径上传输水印音频信号之后，水印检测相关结果峰值集中在主相关结果峰值附近的有限的时间范围内，其限制的时间范围远小于总相关长度。水印检测基于以下内容：给定np相关结果峰值v =（v 1，v 2，...，v np）在未标记内容的相关结果值的平均或预期概率分布中，计算概率在覆盖有限时间范围的窗口内，存在来自大于或等于这些峰值v的相关结果值的np或更多值。

4. 发明申请

WO2014040864A1 METHOD AND APPARATUS FOR DETERMINING AN OPTIMUM FREQUENCY RANGE WITHIN A FULL FREQUENCY RANGE OF A WATERMARKED INPUT SIGNAL 审中-公开
标题翻译：用于确定水印输入信号全频范围内最佳频率范围的方法和装置
公开(公告)号：WO2014040864A1
公开(公告)日：2014-03-20
申请号：PCT/EP2013/067925
申请日：2013-08-29
申请人： THOMSON LICENSING
发明人： BAUM, Peter Georg , CHEN, Xiao-Ming , ARNOLD, Michael , GRIES, Ulrich
IPC分类号： G10L19/018
CPC分类号： G10L19/018 , G10L19/265
摘要： Many watermarking detection algorithms are correlation based, whereby an input signal is correlated with reference signals. The correlation with the best match determines the bit value of the watermark information. Usually a watermarked signal undergoes distortion before being fed to a watermark detector. However, the modification is stronger in some frequency ranges than in others. According to the invention, the correlation result for a current input signal section is in addition used for estimating the optimal frequency range or ranges for the following section's correlation, using a cumulative correlation value curve.
摘要翻译：许多水印检测算法是基于相关的，由此输入信号与参考信号相关。与最佳匹配的相关性确定水印信息的比特值。通常，水印信号在被馈送到水印检测器之前经历失真。然而，在一些频率范围内的修改比其他频率范围更强。根据本发明，使用累积相关值曲线，将当前输入信号部分的相关结果另外用于估计下一部分相关的最佳频率范围或范围。

5. 发明申请

WO2010043569A3 METHOD FOR GENERATING A CODE AND METHOD FOR ENCODING 审中-公开
公开(公告)号：WO2010043569A3
公开(公告)日：2010-04-22
申请号：PCT/EP2009/063203
申请日：2009-10-09
申请人： THOMSON LICENSING , THEIS, Oliver , CHEN, Xiao-Ming , TIMMERMANN, Friedrich , GEORGI, Marco
发明人： THEIS, Oliver , CHEN, Xiao-Ming , TIMMERMANN, Friedrich , GEORGI, Marco
IPC分类号： H03M13/00 , H03M13/25 , H03M13/15
摘要： The invention describes a code generation method, an encoding method, an encoding apparatus, and extended versions thereof. The code generation method comprises removing columns and rows from submatrices of a given matrix, and attaching a small number of additional columns thereto. The encoding method derives a codeword v in 3 parts, one of which is the given information vector u. The remaining 2 parts of the codeword are derived in a recursive, but parallelizable way. The extended versions use the generated code in a context of parallel concatenated LDPC coding.

6. 发明申请

WO2015018668A1 METHOD AND APPARATUS FOR DETECTING A WATERMARK SYMBOL IN A SECTION OF A RECEIVED VERSION OF A WATERMARKED AUDIO SIGNAL 审中-公开
标题翻译：在水印音频信号的接收版本中检测水印符号的方法和装置
公开(公告)号：WO2015018668A1
公开(公告)日：2015-02-12
申请号：PCT/EP2014/066063
申请日：2014-07-25
申请人： THOMSON LICENSING
发明人： CHEN, Xiao-Ming , BAUM, Peter Georg , ARNOLD, Michael , GRIES, Ulrich
IPC分类号： G10L19/018 , H04N1/32
CPC分类号： G10L19/018 , G10L19/26 , H04N1/3232
摘要： In watermark symbol detection for watermarked audio signals a correlation and statistical detection is used, which is computationally complex. Therefore a downsampling can be used prior to the correlation. However, if the watermarked audio signals are transmitted over an acoustic path, without downsampling the detection rate is considerably higher than the detection rate when including downsampling of the correlation input signals. There is a trade-off between calculation complexity and detection robustness. According to the invention, an interpolation of the correlation result values is carried out for input to the statistical detector, in order to approximate the detection robustness of correlation without downsampling.
摘要翻译：在水印音频信号的水印符号检测中，使用相关和统计检测，这在计算上是复杂的。因此，可以在相关之前使用下采样。然而，如果在包括相关输入信号的下采样的情况下，通过声波路径传输加水印的音频信号，而不进行下采样，检测率显着高于检测率。在计算复杂度和检测鲁棒性之间存在折衷。根据本发明，为了输入到统计检测器，执行相关结果值的内插，以便在不进行下采样的情况下近似相关检测鲁棒性。

7. 发明申请

WO2010037707A1 METHOD FOR DERIVING A REPEATED MINIMUM TRANSITION RUN LIMITED CHANNEL CODE 审中-公开
标题翻译：采用重复最小转换运行有限通道码的方法
公开(公告)号：WO2010037707A1
公开(公告)日：2010-04-08
申请号：PCT/EP2009/062512
申请日：2009-09-28
申请人： THOMSON LICENSING , CHEN, Xiao-Ming , THEIS, Oliver , TIMMERMANN, Friedrich
发明人： CHEN, Xiao-Ming , THEIS, Oliver , TIMMERMANN, Friedrich
IPC分类号： H03M5/00
CPC分类号： H03M5/145
摘要： For deriving a repeated minimum transition run limited channel code and decoder from a given state transition diagram of an original code that is finite state machine decodable, run-length limited and has no repeated minimum transition run limitation, the invention proposes to identify, as RMTR violating loops, those state transitions that cause unlimited repeated minimum runs, to break the identified RMTR violating loops by inserting one additional state and by re-directing violating transitions; and to assign valid next state/output codeword pairs to the additional state for each possibility of redirecting violating transitions. The invention describes steps which guarantee that the resulting RLL code fulfills the d-constraint of the original code, is RMTR limited, and remains decodable.
摘要翻译：为了从有限状态机解码的原始码的给定状态转换图中导出重复的最小转换运行限制信道码和解码器，运行长度受限并且没有重复的最小过渡运行限制，本发明提出将RMTR 违反循环，导致无限次重复最小运行的那些状态转换，通过插入一个附加状态并重新指示违规转换来中断所识别的RMTR违规循环; 并且为每个重定向违反转换的可能性分配有效的下一个状态/输出码字对到附加状态。本发明描述了保证所产生的RLL代码满足原始代码的d约束的步骤，RMTR被限制，并且仍然是可解码的。

8. 发明申请

WO2010037642A1 SIGNAL LEVEL RECOVERY FOR PARTIAL RESPONSE CHANNELS 审中-公开
标题翻译：部分响应通道的信号电平恢复
公开(公告)号：WO2010037642A1
公开(公告)日：2010-04-08
申请号：PCT/EP2009/062116
申请日：2009-09-18
申请人： THOMSON LICENSING , CHEN, Xiao-Ming , THEIS, Oliver , TIMMERMANN, Friedrich , KUANG, Guo Ting
发明人： CHEN, Xiao-Ming , THEIS, Oliver , TIMMERMANN, Friedrich , KUANG, Guo Ting
IPC分类号： G11B20/10 , G11B20/14 , H04L7/033
CPC分类号： G11B20/10037 , G11B20/10009 , G11B20/10055 , G11B20/10101 , G11B20/10111 , G11B20/1012 , G11B20/10203 , G11B20/10222 , G11B20/1025 , G11B20/10481 , G11B20/1403 , G11B2220/2541 , H03L7/0807 , H03L7/085 , H04L7/0029 , H04L7/0066
摘要： The invention proposes a PR level detection method and apparatus which jointly estimate multiple PR levels (227) based on multiple channel signal samples (201, 205). Overlapping vectors of e.g. m=2 consecutive PR levels are jointly estimated based on corresponding vectors of samples. The sample vector and the associated PR level vector can directly be input to the prior art formula for estimating timing error. Alternatively, from the multiple PR values available per each time index n, a single PR level may be derived e.g. by majority vote with or without weighting. The invention also describes a compact apparatus structure for realizing the method. It employs the fact that the set of possible PR-levels is fixed, and employs a scaling factor (2) and a common term for subtraction (c1, c2).
摘要翻译：本发明提出一种基于多信道信号样本（201,205）共同估计多个PR电平（227）的PR电平检测方法和装置。重叠载体例如基于样本的相应向量来共同估计m = 2个连续PR水平。样本矢量和相关联的PR电平矢量可以直接输入到现有技术的公式中，以估计定时误差。或者，根据每个时间索引n可用的多个PR值，可以导出单个PR级别。以加权或不加权的多数票。本发明还描述了一种用于实现该方法的紧凑装置结构。它采用以下事实：可能的PR级别的集合是固定的，并且采用缩放因子（2）和用于减法（c1，c2）的公共术语。

9. 发明申请

WO2011141292A1 METHOD AND APPARATUS FOR DETECTING WHICH ONE OF SYMBOLS OF WATERMARK DATA IS EMBEDDED IN A RECEIVED SIGNAL 审中-公开
标题翻译：用于检测水印数据符号的接收信号中嵌入的方法和装置
公开(公告)号：WO2011141292A1
公开(公告)日：2011-11-17
申请号：PCT/EP2011/056652
申请日：2011-04-27
申请人： THOMSON LICENSING , CHEN, Xiao-Ming , BAUM, Peter, Georg , ARNOLD, Michael , GRIES, Ulrich
发明人： CHEN, Xiao-Ming , BAUM, Peter, Georg , ARNOLD, Michael , GRIES, Ulrich
IPC分类号： G10L19/00 , G06T1/00
CPC分类号： G10L19/018
摘要： Watermark symbol detection requires a detection metric for deciding at decoder side which candidate symbol is embedded inside the audio or video signal content. The invention provides an improved detection metric processing that achieves a reliable detection of watermarks in the presence of additional noise and echoes, and that is adaptive to signal reception conditions and requires a decreased computational power. This is performed by taking into account the information contained in the echoes of the received audio signal in the decision metric and comparing it with the corresponding metric obtained from decoding a non-marked audio signal, based on recursive calculation of false positive detection rates of peaks in correlation result values. The watermark symbol corresponding to the reference sequence having the lowest false positive error is selected as the embedded one.
摘要翻译：水印符号检测需要用于在解码器侧确定哪个候选符号被嵌入在音频或视频信号内容内的检测度量。本发明提供了一种改进的检测度量处理，其在附加噪声和回波的存在下实现水印的可靠检测，并且其适应于信号接收条件并且需要降低的计算能力。这是通过考虑包含在决定度量中的接收到的音频信号的回波中的信息来进行的，并将其与从解码未标记音频信号获得的相应度量进行比较，基于递归计算峰值的假阳性检测率相关结果值。选择与具有最低假正误差的参考序列相对应的水印符号作为嵌入的。

10. 发明申请

WO2010037644A2 METHOD FOR ENCODING, METHOD FOR DECODING, AND METHOD FOR GENERATING A PARITY CHECK MATRIX 审中-公开
标题翻译：编码方法，解码方法和生成奇偶校验矩阵的方法
公开(公告)号：WO2010037644A2
公开(公告)日：2010-04-08
申请号：PCT/EP2009/062120
申请日：2009-09-18
申请人： THOMSON LICENSING , CHEN, Xiao-Ming , THEIS, Oliver , TIMMERMANN, Friedrich
发明人： CHEN, Xiao-Ming , THEIS, Oliver , TIMMERMANN, Friedrich
IPC分类号： G11B20/14
CPC分类号： G11B20/1803 , G11B20/10055 , G11B20/1426 , H03M13/11 , H03M13/1105 , H03M13/1108 , H03M13/116 , H03M13/13 , H03M13/3784 , H03M13/45 , H03M13/451 , H03M13/6325
摘要： The invention proposes a new approach, where on the recording side, after conventional error correction encoding (201), parity-check bits allowing to identify dominant error events are inserted first (202), after which the resulting bitstream is modulation encoded (203). Correspondingly, at the readback side, the parity-based post processing (208) takes place after modulation decoding (207).
摘要翻译：本发明提出了一种新的方法，其中在记录方面，在常规纠错编码（201）之后，首先插入允许识别主要错误事件的奇偶校验位（202），之后所得到的比特流被调制编码（203）。相应地，在回读侧，基于奇偶校验的后处理（208）在调制解码之后进行（207）。

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