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    • 1. 发明申请
    • Method and Apparatus for Introducing Information into a Data Stream and Method and Apparatus for Encoding an Audio Signal
    • 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
    • US20090138259A1
    • 2009-05-28
    • US12366586
    • 2009-02-05
    • Christian NEUBAUERJuergen HerreKarlheinz BrandenburgEric Allamanche
    • Christian NEUBAUERJuergen HerreKarlheinz BrandenburgEric Allamanche
    • G10L19/00
    • H04H20/31G10L19/018G10L19/02H04B1/707
    • 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.
    • 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。
    • 3. 发明授权
    • Method and apparatus for introducing information into a data stream and method and apparatus for encoding an audio signal
    • 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
    • US08117027B2
    • 2012-02-14
    • US12238365
    • 2008-09-25
    • Christian NeubauerJuergen HerreKarlheinz BrandenburgEric Allamanche
    • Christian NeubauerJuergen HerreKarlheinz BrandenburgEric Allamanche
    • G10L19/02H04B1/66H04B1/69
    • H04H20/31G10L19/018G10L19/02H04B1/707
    • 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.
    • 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。
    • 4. 发明授权
    • Method and apparatus for introducing information into a data stream and method and apparatus for encoding an audio signal
    • 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
    • US07454327B1
    • 2008-11-18
    • US10089950
    • 2000-10-05
    • Christian NeubauerJuergen HerreKarlheinz BrandenburgEric Allamanche
    • Christian NeubauerJuergen HerreKarlheinz BrandenburgEric Allamanche
    • G10L19/02H04B1/69
    • H04H20/31G10L19/018G10L19/02H04B1/707
    • 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.
    • 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。
    • 6. 发明授权
    • Device and method for determining a coding block raster of a decoded signal
    • 用于确定解码信号的编码块光栅的装置和方法
    • US06750789B2
    • 2004-06-15
    • US10168456
    • 2002-10-25
    • Juergen HerreKarlheinz BrandenburgThomas SporerMichael SchugWolfgang Schildbach
    • Juergen HerreKarlheinz BrandenburgThomas SporerMichael SchugWolfgang Schildbach
    • H03M700
    • G10L19/02
    • In determining a coding block raster on which a decoded signal is based, a segment of the decoded signal is picked out first, said segment beginning at a certain output sampling value of the decoded signal. Said segment is then converted into a spectral representation, whereupon said spectral representation is then evaluated in relation to a predetermined criterion in order to obtain an evaluation result for the segment. This procedure is repeated for a plurality of different segments beginning at different output sampling values each, in order to obtain a plurality of evaluation results. Finally, the plurality of the evaluation results is searched in order to establish the evaluation result that has an extreme value as compared to the other evaluation results, in such a way that it can be assumed that the segment to which this evaluation result is allocated matches the coding block raster on which the decoded signal is based. This method can be used to determine the coding block raster for any decoded signal that has no explicit information about its coding block raster.
    • 在确定解码信号所基于的编码块光栅时,首先选择解码信号的片段,所述片段以解码信号的特定输出采样值开始。 然后将所述段转换为频谱表示,然后根据预定标准对所述频谱表示进行评估,以获得该段的评估结果。 对于从不同的输出采样值开始的多个不同的段重复该过程,以获得多个评估结果。 最后,搜索多个评估结果以便建立与其他评估结果相比具有极值的评估结果,使得可以假定分配了该评估结果的分段匹配 解码信号所基于的编码块光栅。 该方法可以用于确定任何没有关于其编码块光栅的显式信息的解码信号的编码块栅格。
    • 9. 发明申请
    • Device and method for generating encrypted data, for decrypting encrypted data and for generating re-signed data
    • 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
    • US20050135613A1
    • 2005-06-23
    • US10985479
    • 2004-11-10
    • Karlheinz BrandenburgChristian NeubauerRalph KulessaFrank SiebenharrWolfgang Spinnler
    • Karlheinz BrandenburgChristian NeubauerRalph KulessaFrank SiebenharrWolfgang Spinnler
    • G06F21/00H04L9/00
    • G06F21/10G06F2221/0737G06F2221/2107
    • 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.
    • 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。
    • 10. 发明授权
    • Method and device for processing time-discrete audio sampled values
    • 用于处理时间离散音频采样值的方法和装置
    • US07512539B2
    • 2009-03-31
    • US10479398
    • 2002-05-28
    • Ralf GeigerThomas SporerKarlheinz BrandenburgJürgen HerreJürgen Koller
    • Ralf GeigerThomas SporerKarlheinz BrandenburgJürgen HerreJürgen Koller
    • G06F17/14G10L19/00
    • G10L19/0212G06F17/147
    • An integer transform, which provides integer output values, carries out the TDAC function of a MDCT in the time domain before the forward transform. In overlapping windows, this results in a Givens rotation which may be represented by lifting matrices, wherein time-discrete sampled values of an audio signal may at first be summed up on a pair-wise basis to build a vector so as to be sequentially provided with a lifting matrix. After each multiplication of a vector by a lifting matrix, a rounding step is carried out such that, on the output-side, only integers will result. By transforming the windowed integer sampled value with an integer transform, a spectral representation with integer spectral values may be obtained. The inverse mapping with an inverse rotation matrix and corresponding inverse lifting matrices results in an exact reconstruction.
    • 提供整数输出值的整数变换在正向变换之前的时域中执行MDCT的TDAC功能。 在重叠窗口中,这导致Givens旋转,其可以由提升矩阵表示,其中音频信号的时间离散采样值可以首先在成对的基础上相加以构建向量以便顺序地提供 与提升矩阵。 在通过提升矩阵对向量进行每次乘法之后,执行舍入步骤,使得在输出侧仅将导致整数。 通过用整数变换变换窗口整数采样值,可以获得具有整数频谱值的频谱表示。 具有逆旋转矩阵和对应的反提升矩阵的逆映射导致精确重建。