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11. 发明申请

US20050105726A1 Method and device for embedding watermark information and method and device for extracting embedded watermark information 有权
标题翻译：用于嵌入水印信息的方法和装置以及用于提取嵌入水印信息的方法和装置
公开(公告)号：US20050105726A1
公开(公告)日：2005-05-19
申请号：US10502622
申请日：2003-02-25
申请人： Christian Neubauer , Juergen Herre , Ralph Kulessa , Frank Siebenhaar , Wolfgang Spinnler
发明人： Christian Neubauer , Juergen Herre , Ralph Kulessa , Frank Siebenhaar , Wolfgang Spinnler
IPC分类号： G06T1/00 , H04N7/167
CPC分类号： G06T1/0085 , G06T1/005 , G06T2201/0065
摘要： For embedding watermark information into an information signal including audio and/or video information, first of all a synchronization sequence with a plurality of synchronization sequence units and a data sequence with a plurality of data sequence units are provided, wherein between the data sequence and the synchronization sequence a time shift is present and wherein a degree of shifting depends on the watermark information. A combination means generates a combination sequence having a plurality of combination sequence units from the synchronization sequence and the data sequence shifted with regard to the synchronization sequence, wherein the combination sequence units are derived from synchronization sequence units and shifted data sequence units. The combination sequence is combined with the information signal in order to embed the watermark information into the information signal. A watermark extractor receives a synchronization sequence correlation peak for every data sequence correlation peak associated with the same and therefore determines the watermark information on the basis of the time interval between the synchronization sequence correlation peak and the data sequence correlation peak in a secure and robust way. The concept is robust, provides a high data rate and is simultaneously flexible with regard to the weighting of synchronization energy and data energy and with regard to the robustness on the one hand and data rate on the other hand, respectively.
摘要翻译：为了将水印信息嵌入到包括音频和/或视频信息的信息信号中，首先提供具有多个同步序列单元的同步序列和具有多个数据序列单元的数据序列，其中在数据序列和同步序列存在时移，其中移位程度取决于水印信息。组合装置根据同步序列产生具有多个组合序列单元的组合序列和相对于同步序列移位的数据序列，其中组合序列单元从同步序列单元和移位数据序列单元导出。将组合序列与信息信号组合，以将水印信息嵌入到信息信号中。水印提取器接收与其相关联的每个数据序列相关峰值的同步序列相关峰值，因此以安全和鲁棒的方式基于同步序列相关峰值与数据序列相关峰值之间的时间间隔来确定水印信息。该概念是鲁棒的，提供高数据速率，并且在同步能量和数据能量的加权方面以及另一方面一方面的鲁棒性和数据速率方面同时是灵活的。

12. 发明申请

US20050135613A1 Device and method for generating encrypted data, for decrypting encrypted data and for generating re-signed data 审中-公开
标题翻译：用于生成加密数据的装置和方法，用于解密加密数据和生成重新签名的数据
公开(公告)号：US20050135613A1
公开(公告)日：2005-06-23
申请号：US10985479
申请日：2004-11-10
申请人： Karlheinz Brandenburg , Christian Neubauer , Ralph Kulessa , Frank Siebenharr , Wolfgang Spinnler
发明人： Karlheinz Brandenburg , Christian Neubauer , Ralph Kulessa , Frank Siebenharr , Wolfgang Spinnler
IPC分类号： G06F21/00 , H04L9/00
CPC分类号： G06F21/10 , G06F2221/0737 , G06F2221/2107
摘要： Devices and methods for generating encrypted data, for playing encrypted data and for re-signing originally signed encrypted data are based on the encrypted data, apart from the encrypted media information, to include the information required for decrypting the data and additionally a signature of who has generated the encrypted data. Thus the origin of the encrypted data can be traced back. In particular, passing on the encrypted data to a limited extent by the producer of the *encrypted data, for example to friends or acquaintances, is allowed, while only a mass reproduction of the encrypted data is considered as pirate copying. The pirate copier can, however, be found out with the help of the signature, wherein the signature is optionally protected by an embedded watermark signature. Because this is a concept wherein, when being used legally, only encrypted data occur, the unauthorized removal of the encryption is a statutory offence. The inventive concept makes possible finding the offender and at the same time considers ownerships of the operators with regard to a limited passing-on of media information, and thus has the potential of being accepted on the market.
摘要翻译：用于生成加密数据，用于播放加密数据和重新签署原始签名的加密数据的装置和方法基于加密数据，除了加密的媒体信息之外，还包括解密数据所需的信息，另外还包括谁的签名已生成加密数据。因此，可以追溯加密数据的来源。特别地，允许由加密数据的制作者（例如，朋友或熟人）在有限程度上传递加密数据，而仅将加密数据的大规模再现视为盗版复制。然而，在签名的帮助下，可以发现盗版复印机，其中签名可选地被嵌入的水印签名保护。因为这是一个概念，其中当被合法使用时，仅发生加密的数据，未经授权的加密删除是法定的。本发明的概念使得有可能发现犯罪者，同时考虑到运营商对媒体信息传递有限的所有权，因此具有被市场接受的潜力。

13. 发明申请

US20050207592A1 Apparatus and method of determining an impulse response and apparatus and method of presenting an audio piece 有权
标题翻译：确定脉冲响应的装置和方法以及呈现音频片段的装置和方法
公开(公告)号：US20050207592A1
公开(公告)日：2005-09-22
申请号：US11129708
申请日：2005-05-13
申请人： Thomas Sporer , Christian Neubauer
发明人： Thomas Sporer , Christian Neubauer
IPC分类号： H04B15/00 , H04R3/00 , H04R29/00 , H04S7/00
CPC分类号： H04S7/30 , H04R29/007 , H04S2420/13
摘要： The apparatus for determining an impulse response in an environment in which a speaker and a microphone are placed works using an audio signal. Means for spectrally coloring a test signal, which preferably is a pseudonoise signal, works using a psychoacoustic masking threshold of the audio signal to obtain a colored test signal, which is embedded in the audio signal to obtain a measuring signal, which can be fed to the speaker. Means for determining the impulse response preferably performs a cross-correlation of a reaction signal received via the microphone from the environment and the test signal or the colored test signal. With this, an impulse response of an environment may also be determined during the presentation of an audio piece to provide an optimal description of environment for a wave-field synthesis.
摘要翻译：用于确定扬声器和麦克风放置的环境中的脉冲响应的装置使用音频信号进行工作。用于对测试信号进行光谱着色的装置，其优选地是伪噪声信号，使用音频信号的心理声学掩蔽阈值来工作，以获得嵌入在音频信号中的彩色测试信号，以获得测量信号，该信号可被馈送到演讲者。用于确定脉冲响应的装置优选地执行经由麦克风从环境接收的反应信号与测试信号或着色测试信号的互相关。由此，也可以在呈现音频片段期间确定环境的脉冲响应，以提供用于波场合成的环境的最佳描述。

14. 发明授权

US07627129B2 Apparatus and method for suppressing feedback 有权
标题翻译：用于抑制反馈的装置和方法
公开(公告)号：US07627129B2
公开(公告)日：2009-12-01
申请号：US11055353
申请日：2005-02-08
申请人： Thomas Sporer , Christian Neubauer
发明人： Thomas Sporer , Christian Neubauer
IPC分类号： H04B15/00 , H04R29/00 , H04R3/00
CPC分类号： H04R3/02
摘要： An apparatus for suppressing feedback in an environment where a microphone and a loudspeaker are located, comprises a means for embedding a test signal into a loudspeaker signal, a microphone signal or a modified microphone signal, preferably by using a psychoacoustic masking threshold by using a pseudo-noise test signal, a means for determining a characteristic of a transmission channel in the environment between the loudspeaker and the microphone by using the embedded test signal and the microphone signal, a filter for filtering the loudspeaker signal to obtain a filtered loudspeaker signal, wherein the filter is adaptable to be adapted with regard to its filter characteristic to the characteristic of the transmission channel by the means for determining, as well as a means for subtracting the filtered loudspeaker signal from the microphone signal to obtain the modified microphone signal, in which the feedback is reduced due to the loudspeaker signal. The feedback suppression concept provides an effective feedback suppression without audio quality loss, by which particularly an artist is not affected in his artistic performance.
摘要翻译：用于抑制麦克风和扬声器所在的环境中的反馈的装置包括用于将测试信号嵌入到扬声器信号，麦克风信号或修改的麦克风信号中的装置，优选地通过使用心理声学屏蔽阈值，通过使用伪 - 噪声测试信号，用于通过使用嵌入的测试信号和麦克风信号来确定扬声器和麦克风之间的环境中的传输信道的特性的装置，用于对扬声器信号进行滤波以获得滤波的扬声器信号的滤波器，其中该滤波器适于通过用于确定的装置适应于其对传输信道的特性的滤波特性，以及用于从麦克风信号中减去经滤波的扬声器信号以获得修改的麦克风信号的装置，其中由于扬声器信号，反馈减少。反馈抑制概念提供了有效的反馈抑制，没有音频质量损失，特别是艺术家在他的艺术表现中不受影响。

15. 发明授权

US08117027B2 Method and apparatus for introducing information into a data stream and method and apparatus for encoding an audio signal 有权
标题翻译：用于将信息引入数据流的方法和装置以及用于对音频信号进行编码的方法和装置
公开(公告)号：US08117027B2
公开(公告)日：2012-02-14
申请号：US12238365
申请日：2008-09-25
申请人： Christian Neubauer , Juergen Herre , Karlheinz Brandenburg , Eric Allamanche
发明人： Christian Neubauer , Juergen Herre , Karlheinz Brandenburg , Eric Allamanche
IPC分类号： G10L19/02 , H04B1/66 , H04B1/69
CPC分类号： H04H20/31 , G10L19/018 , G10L19/02 , H04B1/707
摘要： Techniques for introducing information into a data stream first obtains the spectral values of the short-term spectrum of the audio signal. Separately, information to be introduced are combined with a spread sequence obtaining a spread information signal, whereupon a spectral representation of the spread information is generated, then weighted with an established psychoacoustic maskable noise energy to generate a weighted information signal, wherein energy of the introduced information is substantially equal to or below the psychoacoustic masking threshold. The weighted information signal and the spectral values of the short-term spectrum of the audio signal are then summed and afterwards processed again to obtain a processed data stream including audio information and information to be introduced. Because the information to be introduced are introduced without changing to the time domain, the block rastering underlying the short-term spectrum are not touched, thus introducing a watermark will not lead to tandem encoding effects.
摘要翻译：将信息引入数据流的技术首先获得音频信号的短期频谱的频谱值。单独地，要引入的信息与获得扩展信息信号的扩展序列组合，从而生成扩展信息的频谱表示，然后用已建立的心理声学可屏蔽噪声能量进行加权，以产生加权信息信号，其中引入的能量信息基本上等于或低于心理声学屏蔽阈值。然后，将加权信息信号和音频信号的短期频谱的频谱值相加，然后再次进行处理，以获得包括音频信息和要引入的信息的处理数据流。由于在不改变时域的情况下引入要引入的信息，因此不会触及短期频谱下的块划像，因此引入水印不会导致串联编码效果。

16. 发明授权

US07881485B2 Apparatus and method of determining an impulse response and apparatus and method of presenting an audio piece 有权
标题翻译：确定脉冲响应的装置和方法以及呈现音频片段的装置和方法
公开(公告)号：US07881485B2
公开(公告)日：2011-02-01
申请号：US11129708
申请日：2005-05-13
申请人： Thomas Sporer , Christian Neubauer
发明人： Thomas Sporer , Christian Neubauer
IPC分类号： H04R5/02 , H04R5/00 , H04R29/00 , H03G5/00
CPC分类号： H04S7/30 , H04R29/007 , H04S2420/13
摘要： The apparatus for determining an impulse response in an environment in which a speaker and a microphone are placed works using an audio signal. Means for spectrally coloring a test signal, which preferably is a pseudonoise signal, works using a psychoacoustic masking threshold of the audio signal to obtain a colored test signal, which is embedded in the audio signal to obtain a measuring signal, which can be fed to the speaker. Means for determining the impulse response preferably performs a cross-correlation of a reaction signal received via the microphone from the environment and the test signal or the colored test signal. With this, an impulse response of an environment may also be determined during the presentation of an audio piece to provide an optimal description of environment for a wave-field synthesis.
摘要翻译：用于确定扬声器和麦克风放置的环境中的脉冲响应的装置使用音频信号进行工作。用于对测试信号进行光谱着色的装置，其优选地是伪噪声信号，使用音频信号的心理声学掩蔽阈值来工作，以获得嵌入在音频信号中的彩色测试信号，以获得测量信号，该信号可被馈送到演讲者。用于确定脉冲响应的装置优选地执行经由麦克风从环境接收的反应信号与测试信号或着色测试信号的互相关。由此，也可以在呈现音频片段期间确定环境的脉冲响应，以提供用于波场合成的环境的最佳描述。

17. 发明授权

US07454327B1 Method and apparatus for introducing information into a data stream and method and apparatus for encoding an audio signal 有权
标题翻译：用于将信息引入数据流的方法和装置以及用于对音频信号进行编码的方法和装置
公开(公告)号：US07454327B1
公开(公告)日：2008-11-18
申请号：US10089950
申请日：2000-10-05
申请人： Christian Neubauer , Juergen Herre , Karlheinz Brandenburg , Eric Allamanche
发明人： Christian Neubauer , Juergen Herre , Karlheinz Brandenburg , Eric Allamanche
IPC分类号： G10L19/02 , H04B1/69
CPC分类号： H04H20/31 , G10L19/018 , G10L19/02 , H04B1/707
摘要： An inventive method for introducing information into a data stream including data about spectral values representing a short-term spectrum of an audio signal first performs a processing of the data stream to obtain the spectral values of the short-term spectrum of the audio signal. Apart from that, the information to be introduced are combined with a spread sequence to obtain a spread information signal, whereupon a spectral representation of the spread information is generated which will then be weighted with an established psychoacoustic maskable noise energy to generate a weighted information signal, wherein the energy of the introduced information is substantially equal to or below the psychoacoustic masking threshold. The weighted information signal and the spectral values of the short-term spectrum of the audio signal will then be summed and afterwards processed again to obtain a processed data stream including both audio information and information to be introduced. By the fact that the information to be introduced are introduced into the data stream without changing to the time domain, the block rastering underlying the short-term spectrum will not be touched, so that introducing a watermark will not lead to tandem encoding effects.
摘要翻译：将信息引入包括表示音频信号的短期频谱的频谱值的数据的数据流的创新方法首先执行数据流的处理以获得音频信号的短期频谱的频谱值。除此之外，将要引入的信息与扩展序列组合以获得扩展信息信号，从而生成扩展信息的频谱表示，然后将其利用已建立的心理声学可屏蔽噪声能量进行加权，以产生加权信息信号，其中所引入的信息的能量基本上等于或低于心理声学掩蔽阈值。然后将加权信息信号和音频信号的短期频谱的频谱值相加，然后再次处理，以获得包括音频信息和要引入的信息的处理数据流。由于将要引入的信息被引入到数据流而不改变到时域的事实，所以短期频谱下面的块划像不会被触及，所以引入水印不会导致串联编码效应。

18. 发明申请

US20090076801A1 Method and Apparatus for Introducing Information into a Data Stream and Method and Apparatus for Encoding an Audio Signal 有权
公开(公告)号：US20090076801A1
公开(公告)日：2009-03-19
申请号：US12238365
申请日：2008-09-25
申请人： Christian Neubauer , Juergen Herre , Karlheinz Brandenburg , Eric Allamanche
发明人： Christian Neubauer , Juergen Herre , Karlheinz Brandenburg , Eric Allamanche
IPC分类号： G10L19/00
CPC分类号： H04H20/31 , G10L19/018 , G10L19/02 , H04B1/707
摘要： An inventive method for introducing information into a data stream including data about spectral values representing a short-term spectrum of an audio signal first performs a processing of the data stream to obtain the spectral values of the short-term spectrum of the audio signal. Apart from that, the information to be introduced are combined with a spread sequence to obtain a spread information signal, whereupon a spectral representation of the spread information is generated which will then be weighted with an established psychoacoustic maskable noise energy to generate a weighted information signal, wherein the energy of the introduced information is substantially equal to or below the psychoacoustic masking threshold. The weighted information signal and the spectral values of the short-term spectrum of the audio signal will then be summed and afterwards processed again to obtain a processed data stream including both audio information and information to be introduced. By the fact that the information to be introduced are introduced into the data stream without changing to the time domain, the block rastering underlying the short-term spectrum will not be touched, so that introducing a watermark will not lead to tandem encoding effects.

19. 发明申请

US20050190929A1 Apparatus and method for suppressing feedback 有权
标题翻译：用于抑制反馈的装置和方法
公开(公告)号：US20050190929A1
公开(公告)日：2005-09-01
申请号：US11055353
申请日：2005-02-08
申请人： Thomas Sporer , Christian Neubauer
发明人： Thomas Sporer , Christian Neubauer
IPC分类号： H04B15/00 , H04R3/00 , H04R3/02 , H04R29/00
CPC分类号： H04R3/02
摘要： An apparatus for suppressing feedback in an environment where a microphone and a loudspeaker are located, comprises a means for embedding a test signal into a loudspeaker signal, a microphone signal or a modified microphone signal, preferably by using a psychoacoustic masking threshold by using a pseudo-noise test signal, a means for determining a characteristic of a transmission channel in the environment between the loudspeaker and the microphone by using the embedded test signal and the microphone signal, a filter for filtering the loudspeaker signal to obtain a filtered loudspeaker signal, wherein the filter is adaptable to be adapted with regard to its filter characteristic to the characteristic of the transmission channel by the means for determining, as well as a means for subtracting the filtered loudspeaker signal from the microphone signal to obtain the modified microphone signal, in which the feedback is reduced due to the loudspeaker signal. The feedback suppression concept provides an effective feedback suppression without audio quality loss, by which particularly an artist is not affected in his artistic performance.
摘要翻译：用于抑制麦克风和扬声器所在的环境中的反馈的装置包括用于将测试信号嵌入到扬声器信号，麦克风信号或修改的麦克风信号中的装置，优选地通过使用心理声学屏蔽阈值，通过使用伪 - 噪声测试信号，用于通过使用嵌入的测试信号和麦克风信号来确定扬声器和麦克风之间的环境中的传输信道的特性的装置，用于对扬声器信号进行滤波以获得滤波的扬声器信号的滤波器，其中该滤波器适于通过用于确定的装置适应于其对传输信道的特性的滤波特性，以及用于从麦克风信号中减去经滤波的扬声器信号以获得修改的麦克风信号的装置，其中由于扬声器信号，反馈减少。反馈抑制概念提供了有效的反馈抑制，没有音频质量损失，特别是艺术家在他的艺术表现中不受影响。

20. 发明授权

US06584138B1 Coding process for inserting an inaudible data signal into an audio signal, decoding process, coder and decoder 有权
标题翻译：用于将听不到的数据信号插入到音频信号，解码过程，编码器和解码器中的编码过程
公开(公告)号：US06584138B1
公开(公告)日：2003-06-24
申请号：US09142325
申请日：1998-10-05
申请人： Christian Neubauer , Ernst Eberlein , Roland Plankenbühler , Albert Heuberger , Heinz Gerhäuser , Rainer Perthold , Hartmut Schott
发明人： Christian Neubauer , Ernst Eberlein , Roland Plankenbühler , Albert Heuberger , Heinz Gerhäuser , Rainer Perthold , Hartmut Schott
IPC分类号： H04B1500
CPC分类号： H04H20/31
摘要： In a coding method and a coder for introducing a non-audible data signal into an audio signal, the audio signal is first transformed to a spectral range and the masking threshold of the audio signal is determined. A pseudo-noise signal and a data signal are provided and multiplied with each other so a to provide a frequency-spread data signal. The spread data signal is weighted with the masking threshold, and thereafter the audio signal and the weighted data signal are superimposed. In a method and a decoder for decoding a data signal introduced into an audio signal in non-audible manner, the audio signal is first sampled and thereafter the sampled audio signal is filtered in non-recursive manner. The filtered audio signal is subsequently compared to a threshold value so as to retrieve the data signal.
摘要翻译：在用于将非可听数据信号引入音频信号的编码方法和编码器中，首先将音频信号变换为频谱范围，并确定音频信号的掩蔽阈值。提供伪噪声信号和数据信号并将其相乘，以便提供频率扩展的数据信号。扩展数据信号用掩蔽阈值加权，之后叠加音频信号和加权数据信号。在用于以不可听的方式对引入到音频信号中的数据信号进行解码的方法和解码器中，首先对音频信号进行采样，然后以非递归的方式对采样的音频信号进行滤波。滤波后的音频信号随后与阈值进行比较，以检索数据信号。

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