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1. 发明申请

WO2005124679A1 SEARCHING FOR A SCALING FACTOR FOR WATERMARK DETECTION 审中-公开
标题翻译：搜索用于水印检测的标度因子
公开(公告)号：WO2005124679A1
公开(公告)日：2005-12-29
申请号：PCT/IB2005/051862
申请日：2005-06-08
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , LEMMA, Aweke, N. , VAN DE KERKHOF, Leon, M. , VAN DER VEEN, Minne , HAITSMA, Jaap, A.
发明人： LEMMA, Aweke, N. , VAN DE KERKHOF, Leon, M. , VAN DER VEEN, Minne , HAITSMA, Jaap, A.
IPC分类号： G06T1/00
CPC分类号： G06T1/0064
摘要： There is provided a watermark detector (20) including an input for receiving an input signal (Y') including watermark content (W) to be searched. A first processor (40) of the detector (20) is operable to analyse portions (100, 110, 120) of the signal (Y') to identify corresponding sets of characteristic properties or fingerprints (P 1 to P q ) and associated temporal descriptors (d 1 to d q ). A communication link to a database (50) is provided for communicating the fingerprints to the database (50) to identify the signal and to determine corresponding temporal descriptors (MT 1 to MT q ) corresponding to the portions (100, 110, 12.0) in the original signal. A second processor (220) is included for calculating from a difference between the temporal descriptors (d 1 to d q ) and the retrieved temporal descriptors (MT 1 to MT q ) a scaling factor to which the input signal (Y') has been subjected. The scaling factor is useable for re-scaling the signal and extracting the watermark from the resealed signal (Y').
摘要翻译：提供了一种水印检测器（20），其包括用于接收包括要搜索的水印内容（W）的输入信号（Y'）的输入。检测器（20）的第一处理器（40）可操作以分析信号（Y'）的部分（100,110,120），以识别特征属性或指纹（P1至Pq）和相关联的时间描述符（ d1至dq）。提供到数据库（50）的通信链路，用于将指纹传送到数据库（50）以识别信号并确定对应于原始部分（100,110,12.0）的相应时间描述符（MT1至MTq）信号。包括第二处理器（220），用于根据时间描述符（d1至dq）和检索的时间描述符（MT1至MTq）之间的差计算输入信号（Y'）已经经过的缩放因子。缩放因子可用于重新缩放信号并从重新密封的信号（Y'）提取水印。

2. 发明申请

WO2007031939A2 METHOD AND SYSTEM FOR ENABLING COLLUSION RESISTANT WATERMARKING 审中-公开
标题翻译：用于采用抗菌水标记的方法和系统
公开(公告)号：WO2007031939A2
公开(公告)日：2007-03-22
申请号：PCT/IB2006/053221
申请日：2006-09-12
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , LEMMA, Aweke, N. , VAN DER VEEN, Minne
发明人： LEMMA, Aweke, N. , VAN DER VEEN, Minne
CPC分类号： G06T1/0071 , G06T1/005 , G06T2201/0052 , G06T2201/0053 , G06T2201/0063
摘要： A method and a system for modifying a bitstream signal for enabling collusion resistant bitstream watermarking. The method comprises dividing a bitstream spectral signal X[k] of the bitstream signal bx into a first signal (302) and a second signal (304); multiplying the first signal (302) by a first modification signal (306) and outputting a modified first signal (314); performing a transform operation on said second signal (304) for obtaining a transformed second signal (308); multiplying said transformed second signal (308) by a second modification signal (310) and outputting a second modified signal (312); subtracting said second modified signal (312) from said first modified signal (314) and outputting a modified bitstream spectral signal X'[k] suitable for obtaining a modified bitstream signal b'x of said bitstream signal bx. Thus an efficient manner of applying a collusion resistant property for already encoded contents is provided.
摘要翻译：一种用于修改比特流信号以实现防串扰比特流水印的方法和系统。该方法包括将比特流信号bx的比特流频谱信号X [k]分成第一信号（302）和第二信号（304）; 将第一信号（302）乘以第一修改信号（306）并输出修改的第一信号（314）; 对所述第二信号（304）执行变换操作以获得变换的第二信号（308）; 将所述经变换的第二信号（308）乘以第二修改信号（310）并输出第二修改信号（312）; 从所述第一修改信号（314）中减去所述第二修改信号（312），并输出适于获得所述比特流信号bx的修改的位流信号b'x的修改的比特流频谱信号X'[k]。因此，提供了对已经编码的内容应用防串扰属性的有效方式。

3. 发明申请

WO2006109259A1 ENCODING WITH WATERMARKING PRIOR TO PHASE MODULATION 审中-公开
标题翻译：在相位调制之前编码水印
公开(公告)号：WO2006109259A1
公开(公告)日：2006-10-19
申请号：PCT/IB2006/051126
申请日：2006-04-12
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , VAN DER VEEN, Minne , LEMMA, Aweke, N. , BEAUGET, Sylvain, P.
发明人： VAN DER VEEN, Minne , LEMMA, Aweke, N. , BEAUGET, Sylvain, P.
IPC分类号： G11B20/10
CPC分类号： G11B20/00086 , G06T1/005 , G06T2201/0052 , G06T2201/0063 , G10L19/018 , G11B20/00884 , G11B20/00891 , G11B20/00905 , H04N19/467 , H04N19/61
摘要： In watermarking systems, hackers may try to remove the watermark using a so-called collusion attack. If the attacker has access to multiple identical signals with different watermarks (this typically occurs in electronic content delivery systems), simply averaging the signals will remove the watermark energy. A known solution to this problem is phase modulation. By modulating the phase of the signals, the averaging attack will cause phase cancellation to occur and annoying artifacts to be introduced. In the prior art, said phase modulation is carried out in the base-band domain, prior to watermark embedding. The present invention enables phase modification efficiently to be applied to transform coded signals, in particular DCT or MDCT coded signals such as MP3 or AAC audio signals, or MPEG2 video signals. The bitstream is partially decoded (4) and re-encoded (7). In accordance with the invention, the phase modification is now performed by an appropriately modified version of the forward or inverse (M)DCT transform algorithm (9). The phase modulation is thus an integral part of the decoding process (before watermark embedding) or the encoding process (after watermark embedding), which is very efficient. The phase modulation is controlled by parameters provided by a control function (5).
摘要翻译：在水印系统中，黑客可能会尝试使用所谓的串通攻击去除水印。如果攻击者可以访问具有不同水印的多个相同的信号（这通常发生在电子内容传送系统中），简单地平均信号将消除水印能量。这个问题的一个已知的解决方案是相位调制。通过调制信号的相位，平均化攻击将导致相位消除发生和烦人的伪像被引入。在现有技术中，在水印嵌入之前，在基带域中执行所述相位调制。本发明使得能够有效地进行相位修改以变换编码信号，特别是DCT或MDCT编码信号，例如MP3或AAC音频信号或MPEG2视频信号。比特流被部分解码（4）并重新编码（7）。根据本发明，现在通过正向或反向（M）DCT变换算法（9）的适当修改的版本执行相位修改。因此，相位调制是解码处理（水印嵌入之前）或编码处理（水印嵌入之后）的组成部分，这是非常有效的。相位调制由控制功能（5）提供的参数控制。

4. 发明申请

WO2006003570A1 SCALE SEARCHING FOR WATERMARK DETECTION 审中-公开
标题翻译：规模搜索水景检测
公开(公告)号：WO2006003570A1
公开(公告)日：2006-01-12
申请号：PCT/IB2005/052077
申请日：2005-06-23
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , LEMMA, Aweke, N. , VAN DE KERKHOF, Leon, M. , APREA, Javier, F.
发明人： LEMMA, Aweke, N. , VAN DE KERKHOF, Leon, M. , APREA, Javier, F.
IPC分类号： G10L19/00
CPC分类号： G10L19/018
摘要： The present invention relates to a method, device (12) and computer program product for enabling detection of additional data embedded in a media signal that may have been subjected to scaling. The invention also relates to an additional data detecting device (10) comprising such a device for enabling detection. An envelope discriminating unit (ED) provides a first extracted narrow band envelope signal sample (w e [n]) from an input media signal sample (y b [n]), and a variable scale down sampling unit (VSDS) down samples the narrow band envelope signal sample using a down sampling rate that is dependent on a scaling factor variable value (η) for providing at least one sample of a first additional data estimate (w n [k]) in order to allow the detection of additional data in said signal sample.
摘要翻译：本发明涉及一种方法，装置（12）和计算机程序产品，用于使得能够检测嵌入在可能已经进行缩放的媒体信号中的附加数据。本发明还涉及一种附加数据检测装置（10），其包括用于使能检测的这种装置。信封鉴别单元（ED）提供第一提取的窄带包络信号样本（w

5. 发明申请

WO2003083857A1 DECODING OF WATERMARKED INFORMATION SIGNALS 审中-公开
标题翻译：水信息信号的解码
公开(公告)号：WO2003083857A1
公开(公告)日：2003-10-09
申请号：PCT/IB2003/000782
申请日：2003-02-26
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , LEMMA, Aweke, N. , APREA, Javier, F. , VAN DE KERKHOF, Leon, M.
发明人： LEMMA, Aweke, N. , APREA, Javier, F. , VAN DE KERKHOF, Leon, M.
IPC分类号： G11B20/00
CPC分类号： G11B20/00891 , G10L19/018 , G10L19/02 , G11B20/00086
摘要： Method and apparatus are described for compensating for time offset in a received signal, so as to correctly align the frame sequence of a received signal to a sequence of transmitted symbols. Each symbol extends over T s signal samples. The received signal is first divided into a sequence of frames of length T s , and then each framedivided into a multiplicity of N b sub-frames. Subsequently, N b sequences of values are formed, where every successive value in each sequence is derived from the corresponding sub-frame within each successive frame. Each of the N b sequences is an estimate for the correctly aligned sequence of transmitted symbols.
摘要翻译：描述了用于补偿接收信号中的时间偏移的方法和装置，以便将接收到的信号的帧序列正确地对准发射符号序列。每个符号都延伸到Ts信号样本上。接收到的信号首先被划分成长度为Ts的帧序列，然后被分成多个Nb子帧。随后，形成Nb序列，其中每个序列中的每个连续值从每个连续帧内的相应子帧导出。每个Nb序列是发送符号的正确对齐序列的估计。

6. 发明申请

WO2007060567A1 MULTIBIT FORENSIC WATERMARK WITH ENCRYPTED DETECTION KEY 审中-公开
标题翻译：具有加密检测关键字的多位威信水域
公开(公告)号：WO2007060567A1
公开(公告)日：2007-05-31
申请号：PCT/IB2006/054194
申请日：2006-11-10
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , VAN DER VEEN, Minne , LEMMA, Aweke, N. , CELIK, Mehmet, U.
发明人： VAN DER VEEN, Minne , LEMMA, Aweke, N. , CELIK, Mehmet, U.
IPC分类号： G06T1/00
CPC分类号： G06T1/005
摘要： The invention relates to embedding auxiliary data in the form of a multibit payload in a host signal, and encrypting the associated detection key. Moreover, the invention relates to extracting the auxiliary data in the form of the multibit payload from a data signal. Auxiliary data is embedded in a host signal by the following steps. First a reference watermark is provided, subsequently an encrypted detection key associated only with the reference watermark is generated. The encrypted detection key may be a scrambled version of the watermark. In a further step, the multibit watermark is generated and a multibit payload is encoded into the reference watermark. Finally, the multibit watermark is embedded into the host signal.
摘要翻译：本发明涉及在主机信号中以多位有效载荷的形式嵌入辅助数据，并加密相关的检测密钥。此外，本发明涉及从数据信号中提取多位有效载荷形式的辅助数据。辅助数据通过以下步骤嵌入到主机信号中。首先提供参考水印，随后产生与参考水印相关联的加密检测密钥。加密检测密钥可以是水印的加扰版本。在另一步骤中，生成多比特水印并将多比特有效载荷编码到参考水印中。最后，将多位水印嵌入到主机信号中。

7. 发明申请

WO2006043218A1 METHOD OF REDUCING QUANTIZATION NOISE 审中-公开
标题翻译：减少量化噪声的方法
公开(公告)号：WO2006043218A1
公开(公告)日：2006-04-27
申请号：PCT/IB2005/053378
申请日：2005-10-14
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , VAN DER VEEN, Minne , LEMMA, Aweke, N.
发明人： VAN DER VEEN, Minne , LEMMA, Aweke, N.
IPC分类号： H04N7/64
CPC分类号： H04N19/124 , G10L19/173 , H04N19/40 , H04N19/467
摘要： There is described a system (10; 300) for processing an input signal (340) to generate a corresponding encoded output signal (380). The system (10; 300) includes a plurality of quantizing devices (30, 70; 350, 370) coupled in series, the system (10; 300 being configured in operation to reduce tandem quantization noise arising therein by: (a) analyzing the system (10; 300) to determine signal regions (290) in which tandem noise errors occur; and (b) modifying one or more earlier quantizing devices (30; 350) in the system (10; 300) with backward correction to reduce tandem noise arising therein from said determined signal regions (290), said one or more earlier quantizing devices (30; 350) not including a last quantizing device (70; 370) in series the system (10; 300).
摘要翻译：描述了一种用于处理输入信号（340）以产生对应的编码输出信号（380）的系统（10; 300）。系统（10; 300）包括串联耦合的多个量化装置（30,70; 350,370），所述系统（10; 300）被配置为在减少由此产生的串联量化噪声的操作中：（a）系统（10; 300）以确定发生串联噪声误差的信号区域（290）;以及（b）用反向校正修改系统（10; 300）中的一个或多个较早的量化装置（30; 350），以减少串联从所述确定的信号区域（290）产生的噪声，所述一个或多个较早的量化装置（30; 350）不包括系统（10; 300）串联的最后一个量化装置（70; 370）。

8. 发明申请

WO2005060264A1 EMBEDDING OF SIGNAL DEPENDENT PROPERTIES IN A MEDIA SIGNAL 审中-公开
标题翻译：信号信号在媒体信号中的嵌入
公开(公告)号：WO2005060264A1
公开(公告)日：2005-06-30
申请号：PCT/IB2004/052627
申请日：2004-12-01
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , VAN DER VEEN, Minne , LEMMA, Aweke, N. , BARTO, Rene , VAN LEEST, Adriaan, J.
发明人： VAN DER VEEN, Minne , LEMMA, Aweke, N. , BARTO, Rene , VAN LEEST, Adriaan, J.
IPC分类号： H04N7/26
CPC分类号： H04N19/467
摘要： The present invention relates to a method and device for simplifying distribution of a processed media signal and a method and device for distributing a media signal. A properties determining unit (12, 14) determines a set of signal dependent properties (w,a) of a media signal (x). An embedding unit (16) embeds the signal dependent properties in the media signal in order to provide a modified media signal (x'). An extracting unit (22) retrieves the modified media signal (x') from a media signal storage (18) and extracts the signal dependent properties (w, a). A signal processing unit (24, 26) then processes the media signal using the signal dependent properties, such that the processed media signal can be provided for distribution to at least one recipient. In this way storage space is saved and the complexity of an electronic content delivery system is reduced.
摘要翻译：本发明涉及一种用于简化经处理的媒体信号的分布的方法和装置以及用于分发媒体信号的方法和装置。属性确定单元（12,14）确定媒体信号（x）的一组信号相关属性（w，a）。嵌入单元（16）将信号相关属性嵌入在媒体信号中，以便提供经修改的媒体信号（x'）。提取单元（22）从媒体信号存储器（18）检索修改的媒体信号（x'），并提取信号相关属性（w，a）。然后，信号处理单元（24,26）使用信号相关属性处理媒体信号，使得处理的媒体信号可以被提供给分发给至少一个接收者。以这种方式节省存储空间并减少电子内容传送系统的复杂性。

9. 发明申请

WO2005029466A1 WATERMARKING OF MULTIMEDIA SIGNALS 审中-公开
标题翻译：多媒体信号的水印
公开(公告)号：WO2005029466A1
公开(公告)日：2005-03-31
申请号：PCT/IB2004/051659
申请日：2004-09-01
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , VAN DER VEEN, Minne , LEMMA, Aweke, N. , APREA, Javier, F. , BRUEKERS, Alphons, A., M., L.
发明人： VAN DER VEEN, Minne , LEMMA, Aweke, N. , APREA, Javier, F. , BRUEKERS, Alphons, A., M., L.
IPC分类号： G10L19/00
CPC分类号： H04N1/32149 , G06T1/005 , G06T2201/0065 , G10L19/018 , H04N2201/3236 , H04N2201/328
摘要： The invention concerns a method and apparatus for embedding and detecting watermarks in a digital host signal. In the embedding method a watermark sequence of length Lw/N bits carrying predetermined information is generated and then up-sampled by a factor N (preferably N=2). At intermediate sampling points of the up-sampled sequence a modified version of the watermark sequence (in preferred arrangements the negative thereof) is inserted to form a compound watermark sequence of length Lw. The compound watermark sequence is then combined with the host signal to watermark the host signal. The invention finds particular advantage in that the need for a spectral whitening stage in the detector is done away with.
摘要翻译：本发明涉及一种在数字主机信号中嵌入和检测水印的方法和装置。在嵌入方法中，生成承载预定信息的长度为Lw / N比特的水印序列，然后用因子N（优选N = 2）进行上采样。在上采样序列的中间采样点，插入水印序列的修改版本（在其优选布置中为负），以形成长度为Lw的复合水印序列。然后将复合水印序列与主机信号组合以对主机信号进行水印。本发明的特征在于，在检测器中需要进行光谱增白阶段。

10. 发明申请

WO2009027902A2 APPARATUS AND METHODS FOR TRANSFERRING EDITABLE DIGITAL CONTENT 审中-公开
标题翻译：用于传输可编辑数字内容的设备和方法
公开(公告)号：WO2009027902A2
公开(公告)日：2009-03-05
申请号：PCT/IB2008/053351
申请日：2008-08-21
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , LEMMA, Aweke, N. , VAN DER VEEN, Minne , CELIK, Mehmet, U , KATZENBEISSER, Stefan
发明人： LEMMA, Aweke, N. , VAN DER VEEN, Minne , CELIK, Mehmet, U , KATZENBEISSER, Stefan
CPC分类号： H04L63/0428 , G06F21/10 , G06F2221/0724 , G06T1/0071 , G06T2201/0064 , H04N7/162 , H04N21/23892 , H04N21/4627 , H04N21/63345 , H04N21/8358 , H04N21/854
摘要： The present invention relates to methods and apparatus for transfer of editable digital content. A first entity (60) stores content data (C 1 ') comprising digital content embedded with a first watermark (W 1 '). The first entity transmits structure data (S(c 1 ')) to a transfer control entity (50), the structure data being indicative of the structure of at least a portion of the content data. The transfer control entity selects a transmission key (k 1 ) in dependence upon the structure data, and transmits the transmission key to the first entity. The first entity applies the transmission key to the content data to remove the first watermark from the digital content and encrypt the digital content. The first entity transmits the encrypted digital content (E(c 1 ')) to a second entity (70). The transfer control entity transmits a receive key (k 2 ) to the second entity. The second entity applies the receive key to the encrypted digital content to generate decrypted data (c 2 ) comprising the decrypted digital content embedded with a second watermark (w 2 ).
摘要翻译：本发明涉及用于传送可编辑数字内容的方法和设备。第一实体（60）存储包括嵌入有第一水印（W 1'）的数字内容的内容数据（C 1'）。第一实体向传输控制实体（50）传输结构数据（S（c 1'）），该结构数据指示内容数据的至少一部分的结构。传输控制实体根据结构数据选择传输密钥（k1），并将传输密钥发送给第一实体。第一实体将传输密钥应用于内容数据以从数字内容中移除第一水印并加密数字内容。第一实体将加密的数字内容（E（c1'））发送给第二实体（70）。转移控制实体将接收密钥（k≠2）发送给第二实体。第二实体将接收密钥应用于加密的数字内容以生成包含嵌入有第二水印（w2）的解密的数字内容的解密数据（c2）。 / p>

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