-
公开(公告)号：US09214159B2
公开(公告)日：2015-12-15
申请号：US13593999
申请日：2012-08-24
申请人： Reinhard Zitzmann , Stefan Wabnik , Joerg Pickel , Bert Greevenbosch , Bernhard Grill , Ernst Eberlein , Giovanni Del Galdo , Stefan Kraegeloh , Tobias Bliem , Juliane Borsum , Marco Breiling
发明人： Reinhard Zitzmann , Stefan Wabnik , Joerg Pickel , Bert Greevenbosch , Bernhard Grill , Ernst Eberlein , Giovanni Del Galdo , Stefan Kraegeloh , Tobias Bliem , Juliane Borsum , Marco Breiling
IPC分类号： G06F17/00 , G10L19/018
CPC分类号： G10L19/018
摘要： A watermark signal provider comprises a time-frequency-domain waveform provider to provide time-domain waveforms for a plurality of frequency subbands. The time-frequency-domain waveform provider is configured to map a given value of a time-frequency-domain representation onto a bit shaping function, a temporal extension of which is longer than a bit interval, such that there is a temporal overlap between bit shaped functions provided for temporally subsequent values of the time-frequency-domain representation of the same frequency subband. A time-domain waveform of a given frequency subband contains a plurality of bit shaped functions provided for temporally subsequent values of the time-frequency-domain representation. The water mark signal provider further has a time-domain waveform combiner.
摘要翻译： 水印信号提供器包括时频波形提供器，用于为多个频率子带提供时域波形。 时域波形提供器被配置为将时间 - 频域表示的给定值映射到位时间扩展长于比特间隔的比特整形功能，使得在比特之间存在时间重叠 为相同频率子带的时间 - 频域表示的时间上随后的值提供的形状函数。 给定频率子带的时域波形包含为时间 - 频域表示的时间上随后的值提供的多个位形函数。 水印信号提供者还具有时域波形组合器。
-
公开(公告)号：US08965547B2
公开(公告)日：2015-02-24
申请号：US13593016
申请日：2012-08-23
申请人： Stefan Wabnik , Joerg Pickel , Bert Greevenbosch , Bernhard Grill , Ernst Eberlein , Giovanni Del Galdo , Stefan Kraegeloh , Reinhard Zitzmann , Tobias Bliem , Marco Breiling , Juliane Borsum
发明人： Stefan Wabnik , Joerg Pickel , Bert Greevenbosch , Bernhard Grill , Ernst Eberlein , Giovanni Del Galdo , Stefan Kraegeloh , Reinhard Zitzmann , Tobias Bliem , Marco Breiling , Juliane Borsum
CPC分类号： G10L19/018 , H04H20/14 , H04H60/29 , H04H60/33
摘要： A watermark signal provider provides a watermark signal suitable for being hidden in an audio signal when the watermark signal is added to the audio signal, such that the watermark signal represents watermark data. The watermark signal provider includes a psychoacoustical processor for determining a masking threshold of the audio signal; and a modulator for generating the watermark signal from a superposition of sample-shaping functions spaced apart from each other at a sample time interval of a time-discrete representation of the watermark data, each sample-shaping function being amplitude-weighted with a respective sample of the time-discrete representation, multiplied by a respective amplitude weight depending on the masking threshold, the modulator being configured such that the sample time interval is shorter than a time extension of the sample-shaping functions; and the respective amplitude weight also depends on samples of the time-discrete representation neighboring the respective sample in time.
摘要翻译： 当水印信号被添加到音频信号时，水印信号提供器提供适于隐藏在音频信号中的水印信号，使得水印信号表示水印数据。 水印信号提供器包括用于确定音频信号的掩蔽阈值的心理声学处理器; 以及调制器，用于在水印数据的时间离散表示的采样时间间隔处从彼此间隔开的采样整形功能的叠加产生水印信号，每个采样整形功能用相应样本进行幅度加权 所述时间离散表示根据掩蔽阈值乘以相应的幅度权重，所述调制器被配置为使得所述采样时间间隔短于所述采样整形功能的时间延长; 并且相应的振幅权重也取决于相应样本在时间上相邻的时间离散表示的样本。
-
3.发明授权Watermark generator, watermark decoder, method for providing a watermark signal in dependence on binary message data, method for providing binary message data in dependence on a watermarked signal and computer program using a differential encoding 有权水印发生器，水印解码器，用于根据二进制消息数据提供水印信号的方法，用于根据水印信号提供二进制消息数据的方法和使用差分编码的计算机程序公开(公告)号：US09350700B2
公开(公告)日：2016-05-24
申请号：US13588165
申请日：2012-08-17
申请人： Stefan Wabnik , Joerg Pickel , Bert Greevenbosch , Bernhard Grill , Ernst Eberlein , Giovanni Del Galdo , Stefan Kraegeloh , Reinhard Zitzmann , Tobias Bliem , Marco Breiling , Juliane Borsum
发明人： Stefan Wabnik , Joerg Pickel , Bert Greevenbosch , Bernhard Grill , Ernst Eberlein , Giovanni Del Galdo , Stefan Kraegeloh , Reinhard Zitzmann , Tobias Bliem , Marco Breiling , Juliane Borsum
IPC分类号： H04L9/32 , G06F17/00 , H04L29/06 , G10L19/018
CPC分类号： H04L63/00 , G10L19/018
摘要： A watermark generator for providing a watermark signal in dependence on binary message data includes an information processor configured to provide, in dependence on information units of the binary message data, a first time-frequency domain representation, values of which represent the binary message data. The watermark generator also includes a differential encoder configured to derive a second time-frequency domain representation from the first time-frequency-domain representation, such that the second time-frequency-domain representation includes a plurality of values, wherein a difference between two values of the second time-frequency-domain representation represents a corresponding value of the first time-frequency-domain representation, in order to obtain a differential encoding of the values of the first time-frequency-domain representation. The watermark generator also includes a watermark signal provider configured to provide the watermark signal on the basis of the second time-frequency-domain representation.
摘要翻译： 用于根据二进制消息数据提供水印信号的水印生成器包括信息处理器，其被配置为根据二进制消息数据的信息单元提供其值表示二进制消息数据的第一时间 - 频域表示。 水印生成器还包括差分编码器，其被配置为从第一时间 - 频域表示中导出第二时间 - 频域表示，使得第二时间 - 频域表示包括多个值，其中两个值之间的差 的第二时频域表示的第一时域表示的值代表第一时域表示的对应值，以获得第一时域表示的值的差分编码。 水印生成器还包括被配置为基于第二时域表示来提供水印信号的水印信号提供器。
-
公开(公告)号：US09299356B2
公开(公告)日：2016-03-29
申请号：US13589696
申请日：2012-08-20
申请人： Stefan Wabnik , Joerg Pickel , Bert Greevenbosch , Bernhard Grill , Ernst Eberlein , Giovanni Del Galdo , Stefan Kraegeloh , Reinhard Zitzmann , Tobias Bliem , Marco Breiling , Juliane Borsum
发明人： Stefan Wabnik , Joerg Pickel , Bert Greevenbosch , Bernhard Grill , Ernst Eberlein , Giovanni Del Galdo , Stefan Kraegeloh , Reinhard Zitzmann , Tobias Bliem , Marco Breiling , Juliane Borsum
IPC分类号： G06F17/00 , G10L19/018
CPC分类号： G10L19/018
摘要： A watermark decoder includes a time-frequency-domain representation provider, a memory unit, a synchronization determiner and a watermark extractor. The time-frequency-domain representation provider provides a frequency-domain representation of the watermarked signal for a plurality of time blocks. The memory unit stores the frequency-domain representation of the watermarked signal for a plurality of time blocks. Further, the synchronization determiner identifies an alignment time block based on the frequency-domain representation of the watermarked signal of a plurality of time blocks. The watermark extractor provides binary message data based on stored frequency-domain representations of the watermarked signal of time blocks temporally preceding the identified alignment time block considering a distance to the identified alignment time block.
摘要翻译： 水印解码器包括时域表示提供者，存储单元，同步确定器和水印提取器。 时域表示提供者为多个时间块提供水印信号的频域表示。 存储单元存储多个时间块的水印信号的频域表示。 此外，同步确定器基于多个时间块的水印信号的频域表示来识别对准时间块。 水印提取器在考虑与所识别的对准时间块的距离的基础上，基于时间上在所识别的对准时间块之前的时间块的水印信号的存储频域表示来提供二进制消息数据。
-
5.发明授权Watermark generator, watermark decoder, and method for providing binary message data 有权水印发生器，水印解码器和提供二进制消息数据的方法公开(公告)号：US08726031B2
公开(公告)日：2014-05-13
申请号：US13592992
申请日：2012-08-23
申请人： Stefan Wabnik , Reinhard Zitzmann , Tobias Bliem , Bert Greevenbosch , Bernhard Grill , Ernst Eberlein , Giovanni Del Galdo , Marco Breiling , Stefan Kraegeloh , Juliane Borsum , Joerg Pickel
发明人： Stefan Wabnik , Reinhard Zitzmann , Tobias Bliem , Bert Greevenbosch , Bernhard Grill , Ernst Eberlein , Giovanni Del Galdo , Marco Breiling , Stefan Kraegeloh , Juliane Borsum , Joerg Pickel
CPC分类号： G06F21/16 , G06F3/1243 , G06F17/30743 , G06F21/00 , G06F21/60 , G06F2221/0733 , G10L19/018
摘要： A watermark generator for providing a watermark signal in dependence on binary message data, the watermark generator has an information spreader configured to spread an information unit to a plurality of time-frequency-domain values, to obtain a spread information representation. The watermark generator also has a synchronization inserter configured to multiplicatively combine the spread information representation with a synchronization sequence to obtain a combined information-synchronization representation. The watermark generator also has a watermark signal provider configured to provide the watermark signal on the basis of the combined information-synchronization representation. A watermark decoder, methods and computer programs are also described.
摘要翻译： 一种水印生成器，用于根据二进制消息数据提供水印信号，所述水印生成器具有信息扩展器，其被配置为将信息单元扩展到多个时域域值，以获得扩展信息表示。 水印生成器还具有配置成将扩展信息表示与同步序列进行乘法组合以获得组合信息同步表示的同步插入器。 水印生成器还具有被配置为基于组合的信息同步表示来提供水印信号的水印信号提供器。 还描述了水印解码器，方法和计算机程序。
-
6.发明授权Watermark generator, watermark decoder, method for providing a watermark signal in dependence on binary message data, method for providing binary message data in dependence on a watermarked signal and computer program using a two-dimensional bit spreading 有权水印发生器，水印解码器，依赖于二进制消息数据提供水印信号的方法，根据水印信号提供二进制消息数据的方法和使用二维比特扩展的计算机程序公开(公告)号：US08989885B2
公开(公告)日：2015-03-24
申请号：US13584894
申请日：2012-08-14
申请人： Stefan Wabnik , Jörg Pickel , Bert Greevenbosch , Bernhard Grill , Ernst Eberlein , Giovanni Del Galdo , Stefan Krägeloh , Reinhard Zitzmann , Tobias Bliem , Marco Breiling , Juliane Borsum
发明人： Stefan Wabnik , Jörg Pickel , Bert Greevenbosch , Bernhard Grill , Ernst Eberlein , Giovanni Del Galdo , Stefan Krägeloh , Reinhard Zitzmann , Tobias Bliem , Marco Breiling , Juliane Borsum
CPC分类号： G10L19/018 , H04H20/14 , H04H60/29
摘要： A watermark generator for providing a watermark signal in dependence on binary message data includes an information processor configured to provide, in dependence on a single message bit of the binary message data, a 2-dimensional spread information representing the message bit in the form of a set of time-frequency-domain values. The watermark generator also includes a watermark signal provider configured to provide the watermark signal on the basis of the 2-dimensional spread information.A watermark detector, methods and computer programs are also described.
摘要翻译： 用于根据二进制消息数据提供水印信号的水印生成器包括：信息处理器，被配置为根据二进制消息数据的单个消息位提供表示以下形式的消息位的二维扩展信息： 一组时频域值。 水印生成器还包括被配置为基于二维扩展信息提供水印信号的水印信号提供器。 还描述了水印检测器，方法和计算机程序。
-
7.发明授权Embedder for embedding a watermark into an information representation, detector for detecting a watermark in an information representation, method and computer program 有权用于将水印嵌入到信息表示中的嵌入器，用于在信息表示中检测水印的检测器，方法和计算机程序公开(公告)号：US09037453B2
公开(公告)日：2015-05-19
申请号：US12922650
申请日：2009-03-03
IPC分类号： G10L19/00 , H04L9/32 , G06T1/00 , G10L19/018 , H04N1/32
CPC分类号： G06T1/0071 , G10L19/018 , H04N1/32149 , H04N1/32154 , H04N1/32299 , H04N1/32304 , H04N1/32352
摘要： An embedder for embedding a watermark to be embedded into an input information representation comprises an embedding parameter determiner that is implemented to apply a derivation function once or several times to an initial value to obtain an embedding parameter for embedding the watermark into the input information representation. Further, the embedder comprises a watermark adder that is implemented to provide the input information representation with the watermark using the embedding parameter. The embedder is implemented to select how many times the derivation function is to be applied to the initial value.
摘要翻译： 用于嵌入要嵌入到输入信息表示中的水印的嵌入器包括嵌入参数确定器，该嵌入参数确定器被实现为将初始值应用导出函数一次或多次，以获得用于将水印嵌入到输入信息表示中的嵌入参数。 此外，嵌入器包括水印加法器，其被实现以使用嵌入参数向输入信息表示提供水印。 实现嵌入器以选择将几何推导函数应用于初始值。
-
8.发明申请EMBEDDER FOR EMBEDDING A WATERMARK INTO AN INFORMATION REPRESENTATION, DETECTOR FOR DETECTING A WATERMARK IN AN INFORMATION REPRESENTATION, METHOD AND COMPUTER PROGRAM 有权用于将水印嵌入信息表示的嵌入式设备，用于在信息表示，方法和计算机程序中检测水印的检测器公开(公告)号：US20110144998A1
公开(公告)日：2011-06-16
申请号：US12922650
申请日：2009-03-03
IPC分类号： G10L21/00
CPC分类号： G06T1/0071 , G10L19/018 , H04N1/32149 , H04N1/32154 , H04N1/32299 , H04N1/32304 , H04N1/32352
摘要： An embedder for embedding a watermark to be embedded into an input information representation comprises an embedding parameter determiner that is implemented to apply a derivation function once or several times to an initial value to obtain an embedding parameter for embedding the watermark into the input information representation. Further, the embedder comprises a watermark adder that is implemented to provide the input information representation with the watermark using the embedding parameter. The embedder is implemented to select how many times the derivation function is to be applied to the initial value.
摘要翻译： 用于嵌入要嵌入到输入信息表示中的水印的嵌入器包括嵌入参数确定器，该嵌入参数确定器被实现为将初始值应用导出函数一次或多次，以获得用于将水印嵌入到输入信息表示中的嵌入参数。 此外，嵌入器包括水印加法器，其被实现以使用嵌入参数向输入信息表示提供水印。 实现嵌入器以选择将几何推导函数应用于初始值。
-
9.发明授权Embedder for embedding a watermark into an information representation, detector for detecting a watermark in an information representation, method and computer program and information signal 有权用于将水印嵌入信息表示的嵌入器，用于在信息表示中检测水印的检测器，方法和计算机程序以及信息信号公开(公告)号：US08625839B2
公开(公告)日：2014-01-07
申请号：US12922644
申请日：2009-03-03
IPC分类号： G06K9/00
CPC分类号： G10L19/018 , G06T1/0071 , H04N21/44008 , H04N21/6332 , H04N21/8358
摘要： An embedder for embedding a watermark to be embedded into an input information representation comprises an information adder, which is implemented to provide the input information representation with the watermark and additional information to be added to obtain an input information representation provided with the watermark and the additional information. The additional information to be added comprises descriptive information describing the embedding of the at least one watermark into the input information representation.
摘要翻译： 用于嵌入要嵌入到输入信息表示中的水印的嵌入器包括信息加法器，其被实现为向输入信息表示提供水印和附加信息以获得提供有水印的输入信息表示和附加 信息。 要添加的附加信息包括描述将描述的至少一个水印嵌入到输入信息表示中的描述信息。
-
10.发明申请EMBEDDER FOR EMBEDDING A WATERMARK INTO AN INFORMATION REPRESENTATION, DETECTOR FOR DETECTING A WATERMARK IN AN INFORMATION REPRESENTATION, METHOD AND COMPUTER PROGRAM AND INFORMATION SIGNAL 有权用于将水印嵌入到信息表示中的嵌入式，用于在信息表示，方法和计算机程序和信息信号中检测水印的检测器公开(公告)号：US20110164784A1
公开(公告)日：2011-07-07
申请号：US12922644
申请日：2009-03-03
IPC分类号： G06K9/00
CPC分类号： G10L19/018 , G06T1/0071 , H04N21/44008 , H04N21/6332 , H04N21/8358
摘要： An embedder for embedding a watermark to be embedded into an input information representation comprises an information adder, which is implemented to provide the input information representation with the watermark and additional information to be added to obtain an input information representation provided with the watermark and the additional information. The additional information to be added comprises descriptive information describing the embedding of the at least one watermark into the input information representation.
摘要翻译： 用于嵌入要嵌入到输入信息表示中的水印的嵌入器包括信息加法器，其被实现为向输入信息表示提供水印和附加信息以获得提供有水印的输入信息表示和附加 信息。 要添加的附加信息包括描述将描述的至少一个水印嵌入到输入信息表示中的描述信息。
-
-
-
-
-
-
-
-
-
搜索结果
91 条记录 (耗时 0.041 秒)
