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公开(公告)号：US07546467B2
公开(公告)日：2009-06-09
申请号：US10509548
申请日：2003-02-26
IPC分类号： H04L9/00
CPC分类号： G11B20/00891 , G10L19/018 , G10L19/02 , G11B20/00086
摘要： A method of generating a watermark signal, embedding the watermark signal within a multimedia signal, and subsequently detecting the watermark signal is described. The watermark signal is the sum of two sequences of values, the second sequence of values being a circularly shifted version of the first sequence.
摘要翻译： 描述了一种产生水印信号，在水印信号内嵌入水印信号，随后检测水印信号的方法。 水印信号是两个值序列的和，第二个序列是第一个序列的循环版本。
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公开(公告)号：US07546466B2
公开(公告)日：2009-06-09
申请号：US10509413
申请日：2003-02-26
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 Ts signal samples. The received signal is first divided into a sequence of frames of length Ts, and then each framedivided into a multiplicity of Nb sub-frames. Subsequently, Nb 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 Nb 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。
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公开(公告)号：US20080275710A1
公开(公告)日：2008-11-06
申请号：US11570788
申请日：2005-06-29
IPC分类号： G10L21/00
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 (we[n]) from an input media signal sample (yb[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 (wn[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。 包络鉴别单元（ED）从输入媒体信号样本（y b b [n]）提供第一提取的窄带包络信号样本（w∈En [n]）） ，并且可变缩小缩小采样单元（VSDS）使用取决于缩放因子可变值（eta）的下采样率向下采样窄带包络信号采样，以提供第一附加数据估计（w 以便允许检测所述信号样本中的附加数据。
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4.发明申请Method and Apparatus For Automatically Generating a Playlist By Segmental Feature Comparison 审中-公开通过分段特征比较自动生成播放列表的方法和装置公开(公告)号：US20080235267A1
公开(公告)日：2008-09-25
申请号：US12067991
申请日：2006-09-01
IPC分类号： G06F17/30
CPC分类号： G11B27/28 , G06F16/634 , G06F16/639 , G06F16/68 , G06F16/683
摘要： A playlist of content items, e.g. songs, is automatically generated in which content items having features similar to features of a seed content item are selected. At least one feature of the seed content item is compared with at least one feature of each candidate content item to identify specific ones of the candidate content items that are similar to the seed content item. The identified candidate content items are then added to the playlist. Multiple features represent (e.g. are extracted from) different parts of a plurality of candidate content items and/or multiple features of the seed content item represent (e.g. are extracted from) different parts of the seed content item. The multiple features of the seed content item and/or of the candidate content items are compared with at least one feature of the seed content item or of the candidate content items.
摘要翻译： 内容项目的播放列表，例如 自动产生具有与种子内容项目的特征相似的特征的内容项目被选择的歌曲。 将种子内容项目的至少一个特征与每个候选内容项目的至少一个特征进行比较，以识别类似于种子内容项目的候选内容项目中的特定的一个。 然后将所识别的候选内容项目添加到播放列表。 多个特征表示（例如从多个候选内容项目的）不同部分和/或种子内容项目的多个特征（例如，从种子内容项目的不同部分中提取）。 将种子内容项目和/或候选内容项目的多个特征与种子内容项目或候选内容项目的至少一个特征进行比较。
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公开(公告)号：US20090327734A1
公开(公告)日：2009-12-31
申请号：US12518140
申请日：2007-12-07
IPC分类号： H04L9/32
CPC分类号： G10L19/018
摘要： The invention deals with matching of a watermark to a host sampling rate of a multimedia signal. A watermark sampled at a first sampling rate is matched to multimedia host signal sampled at a second sampling rate, in a process where the watermark sampled at the first sampling rate is received, a scaling factor between the first sampling rate and the second sampling rate is determined, and re-scale widths of the watermark symbols are set. A modified watermark is generated wherein the watermark symbols of the modified watermark being of re-scale widths, so as to substantially match the modified watermark sequences to the second sampling rate.
摘要翻译： 本发明涉及一种水印与多媒体信号的主机采样率的匹配。 在以第一采样率采样的水印被接收的过程中，以第一采样率采样的水印与以第二采样率采样的多媒体主机信号相匹配，第一采样率和第二采样率之间的缩放因子为 确定和重新缩放水印符号的宽度。 生成经修改的水印，其中修改水印的水印符号具有重新缩放宽度，以便将修改的水印序列基本上与第二采样率相匹配。
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公开(公告)号：US10045430B2
公开(公告)日：2018-08-07
申请号：US12864520
申请日：2009-01-26
摘要： A lighting system and a method for a operating a lighting system, enabling to obtain an identification tag (7) comprised in lighting design data (5) directly from an output beam (3), i.e. from the emitted light of the at least one lighting unit (2). It is thus possible to trace any unauthorized distribution of a lighting design by monitoring the emitted light without the need to directly access the controller or any other part of the lighting system.
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公开(公告)号：US20120087550A1
公开(公告)日：2012-04-12
申请号：US13378208
申请日：2010-06-17
申请人： Antonius Hermanus Maria Akkermans , Sabri Boughorbel , Dirk Jeroen Breebaart Breebaart , Alphons Antonius Maria Lambertus Bruekers , Berk Gokberk , Koen Theo Johan De Groot , Emile Josephus Carlos Kelkboom , Thomas Andreas Maria Kevenaar , Aweke Negash Lemma
发明人： Antonius Hermanus Maria Akkermans , Sabri Boughorbel , Dirk Jeroen Breebaart Breebaart , Alphons Antonius Maria Lambertus Bruekers , Berk Gokberk , Koen Theo Johan De Groot , Emile Josephus Carlos Kelkboom , Thomas Andreas Maria Kevenaar , Aweke Negash Lemma
IPC分类号： G06K9/00
CPC分类号： G06K9/0008 , G06K9/00067 , G06K9/036 , G06K9/629 , G06K9/6292
摘要： A basic idea of the present invention is to selectively employ one of at least two different feature extraction processes when generating a biometric template of an individual. An individual offers a physiological property, such as a fingerprint, an iris, an ear, a face, etc., from which biometric data can be derived, to a sensor of an enrolment authority. In the following, the property to be discussed will be fingerprints, even though any suitable biometric property may be used. From the fingerprint, a positional reference point of the biometric data is derived. The derivation of the positional reference point may be accomplished using any appropriate method out of a number of known methods. Such a reference point could be the location of a core, a delta, a weighted average of minutiae coordinates, or alike. Typically, the reference point includes a core of a fingerprint expressed as a three-dimensional coordinate denoted by means of xr, yr, and angle αr. A contribution indicator is calculated for the derived positional reference point, and it is determined whether the derived positional reference point can be considered reliable. Depending on the reliability of the derived reference point, one of the two different feature extraction processes is selected; either the first feature set is extracted using a method which is invariant of the derived reference point, or a method is used taking into account the derived reference point. The better the estimation of the reference point is, the more reliable the reference point-dependent extraction method is. Finally, the biometric template is generated using the extracted first feature set.
摘要翻译： 本发明的基本思想是当生成个体的生物特征模板时，选择性地采用至少两种不同的特征提取过程中的一种。 个体向生物特征提供生物特征，例如指纹，虹膜，耳朵，面部等，从中可以将生物特征数据导出到注册机构的传感器。 在下文中，要讨论的属性将是指纹，即使可以使用任何合适的生物特征属性。 从指纹，导出生物特征数据的位置参考点。 可以使用多种已知方法中的任何适当的方法来实现位置参考点的推导。 这样的参考点可以是核心的位置，三角形，细节坐标的加权平均值，或类似的。 通常，参考点包括表示为由xr，yr和角度αr表示的三维坐标的指纹的核心。 针对导出的位置参考点计算贡献指标，并且确定导出的位置参考点是否可以被认为是可靠的。 根据导出的参考点的可靠性，选择两个不同特征提取过程之一; 使用导出的参考点不变的方法来提取第一特征集，或者使用考虑到导出的参考点的方法。 参考点的估计越好，参考点依赖性提取方法越可靠。 最后，使用提取的第一特征集生成生物特征模板。
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公开(公告)号：US20080276324A1
公开(公告)日：2008-11-06
申请号：US11911122
申请日：2006-04-12
IPC分类号： G11B20/00
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。
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公开(公告)号：US20080215889A1
公开(公告)日：2008-09-04
申请号：US12089769
申请日：2006-10-06
IPC分类号： H04L9/00
CPC分类号： G06F21/10
摘要： A system and a method of effectively detecting watermarks in a significant amount of data signals. The method, in overview, consists in pre-filtering the significant amount of data signals in order to eliminate from the final watermark detection the segments of the data signals which have no significant relevance to the owner of the copyrights of the watermark under investigation, and then performing the actual watermark detection over the remaining segments of data signals relevant to the investigation. The pre-filtering feature being implemented by a definition of one or more goal descriptors, extraction of one or more descriptors from the data signals and its content and a comparison between goal descriptors and extracted descriptors.
摘要翻译： 一种在大量数据信号中有效检测水印的系统和方法。 该方法概括地说是对大量的数据信号进行预滤波，以便从最终的水印检测中消除与被调查的水印的版权的所有者无关的数据信号段，以及 然后对与调查相关的数据信号的剩余段执行实际水印检测。 预过滤特征通过一个或多个目标描述符的定义来实现，从数据信号及其内容中提取一个或多个描述符，以及目标描述符和提取的描述符之间的比较。
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公开(公告)号：US07266466B2
公开(公告)日：2007-09-04
申请号：US10509411
申请日：2003-02-26
IPC分类号： H04B1/10
CPC分类号： G10L19/018 , G11B20/00891
摘要： Method and apparatus are described for compensating for a linear time scale change in a received signal, so as to correctly rescale the frame sequence of the received signal. Firstly, an initial estimate of the sequence of symbols is extracted from the received signal. Successive estimates of correctly time scaled sequences of the symbols are then generated by interpolating the values of the initial estimates.
摘要翻译： 描述了用于补偿接收信号中的线性时标变化的方法和装置，以便正确地重新缩放接收信号的帧序列。 首先，从接收到的信号中提取符号序列的初始估计。 然后通过内插初始估计值来生成符号的正确时间缩放序列的连续估计。
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