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1. 发明授权

US07003448B1 Method and device for error concealment in an encoded audio-signal and method and device for decoding an encoded audio signal 有权
标题翻译：用于编码音频信号中的错误隐藏的方法和装置，以及用于对编码的音频信号进行解码的方法和装置
公开(公告)号：US07003448B1
公开(公告)日：2006-02-21
申请号：US09980534
申请日：2000-04-12
申请人： Pierre Lauber , Martin Dietz , Juergen Herre , Reinhold Boehm , Ralph Sperschneider , Daniel Homm
发明人： Pierre Lauber , Martin Dietz , Juergen Herre , Reinhold Boehm , Ralph Sperschneider , Daniel Homm
IPC分类号： G10L19/00
CPC分类号： G10L19/005
摘要： In a method for concealing an error in an encoded audio signal a set of spectral coefficients is subdivided into at least two sub-bands (14), whereupon the sub-bands are subjected to a re-verse transform (16). A specific prediction is performed (18) for each quasi time signal of a sub-band to obtain an estimated temporal representation for a sub-band of a set of spectral coefficients following the current set. A forward transform (20) of the time signal of each sub-band provides estimated spectral coefficients which can be used (28) instead of erroneous spectral coefficients of a following set of spectral coefficients, e.g. in order to conceal transmission errors. Transforming at the sub-band level provides independence from transform characteristics such as block length, window type and MDCT algorithm while at the same time preserving spectral processing for error concealment. Thus the spectral characteristics of audio signals can also be taken into account during error concealment.
摘要翻译：在用于隐藏编码音频信号中的错误的方法中，一组频谱系数被细分为至少两个子带（14），于是子带经受逆变换（16）。对于子带的每个准时间信号执行特定的预测（18），以获得在当前集合之后的一组频谱系数的子带的估计时间表示。每个子带的时间信号的正向变换（20）提供可以使用的估计的频谱系数（28），而不是以下的频谱系数集合的错误频谱系数，例如。以掩盖传输错误。在子带级变换提供独立于诸如块长度，窗口类型和MDCT算法的变换特征，同时保留用于错误隐藏的频谱处理。因此，在错误隐藏期间也可以考虑音频信号的频谱特性。

2. 发明授权

US08046236B2 Apparatus and method for producing a data stream and apparatus and method for reading a data stream 有权
标题翻译：用于产生数据流的装置和方法以及用于读取数据流的装置和方法
公开(公告)号：US08046236B2
公开(公告)日：2011-10-25
申请号：US12124525
申请日：2008-05-21
申请人： Ralph Sperschneider , Martin Dietz , Daniel Homm , Reinhold Böhm
发明人： Ralph Sperschneider , Martin Dietz , Daniel Homm , Reinhold Böhm
IPC分类号： G10L21/04
CPC分类号： H03M7/40
摘要： An entropy encoder includes an apparatus for producing a data stream which comprises two reference points, of code words of variable lengths, the apparatus comprising a first device for writing at least a part of a code word into the data stream in a first direction of writing, starting from a first reference point, and a second device for writing at least a part of a code word into the data stream in a second direction of writing, which is opposite to the first direction of writing, starting from the other reference point. In particular, when a raster having a plurality of segments is used to write the code words of variable lengths into the data stream, the number of the code words which can be written starting at raster points is doubled, in the best case, such that the data stream of code words of variable lengths is robust toward a propagation of sequence errors.
摘要翻译：熵编码器包括用于产生包括可变长度的码字的两个参考点的数据流的装置，该装置包括用于在第一写入方向上将码字的至少一部分写入数据流的第一装置从第一参考点开始，以及第二装置，用于从另一个参考点开始，以与第一写入方向相反的第二写入方向将码字的至少一部分写入数据流。特别地，当具有多个段的光栅被用于将可变长度的代码字写入数据流时，可以从光栅点开始写入的代码字的数量加倍，最好是使得可变长度的码字的数据流对于序列错误的传播是鲁棒的。

3. 发明授权

US07526432B2 Apparatus and method for producing a data stream and apparatus and method for reading a data stream 有权
标题翻译：用于产生数据流的装置和方法以及用于读取数据流的装置和方法
公开(公告)号：US07526432B2
公开(公告)日：2009-04-28
申请号：US12018136
申请日：2008-01-22
申请人： Ralph Sperschneider , Martin Dietz , Daniel Homm , Reinhold Böhm
发明人： Ralph Sperschneider , Martin Dietz , Daniel Homm , Reinhold Böhm
IPC分类号： G01L21/04
CPC分类号： H03M7/40
摘要： An entropy encoder includes an apparatus for producing a data stream which comprises two reference points, of code words of variable lengths, the apparatus comprising a first device for writing at least a part of a code word into the data stream in a first direction of writing, starting from a first reference point, and a second device for writing at least a part of a code word into the data stream in a second direction of writing, which is opposite to the first direction of writing, starting from the other reference point. In particular, when a raster having a plurality of segments is used to write the code words of variable lengths into the data stream, the number of the code words which can be written starting at raster points is doubled, in the best case, such that the data stream of code words of variable lengths is robust toward a propagation of sequence errors.
摘要翻译：熵编码器包括用于产生包括可变长度的码字的两个参考点的数据流的装置，该装置包括用于在第一写入方向上将码字的至少一部分写入数据流的第一装置从第一参考点开始，以及第二装置，用于从另一个参考点开始，以与第一写入方向相反的第二写入方向将码字的至少一部分写入数据流。特别地，当具有多个段的光栅被用于将可变长度的代码字写入数据流时，可以从光栅点开始写入的代码字的数量加倍，最好是使得可变长度的码字的数据流对于序列错误的传播是鲁棒的。

4. 发明授权

US07103554B1 Method and device for generating a data flow from variable-length code words and a method and device for reading a data flow from variable-length code words 有权
标题翻译：用于从可变长度码字生成数据流的方法和装置以及用于从可变长度码字读取数据流的方法和装置
公开(公告)号：US07103554B1
公开(公告)日：2006-09-05
申请号：US09914114
申请日：2000-01-17
申请人： Ralph Sperschneider , Martin Dietz , Pierre Lauber , Michael Schug
发明人： Ralph Sperschneider , Martin Dietz , Pierre Lauber , Michael Schug
IPC分类号： G10L19/00 , H04N11/04 , H04N5/91
CPC分类号： H03M7/42
摘要： In a method for producing a data stream of code words of variable lengths which are divided up into a plurality of sets of code words, wherein a raster having segments is specified for the data stream, wherein two adjacent raster points define a segment, code words of the first sets are written into the data stream starting at raster points. Subsequently, code words of the second set are written into the data stream pursuant to a predetermined assignment rule, wherein each code word of the second set is assigned to a different segment. Entire code words or parts of code words which cannot be written according to their assignment, are stored and entered into the data stream in further attempts, wherein the assignment by a predetermined regulation is changed from attempt to attempt. This procedure is analogously repeated for any further set which may be present. Thus, the ends of code words of the second set are decoupled from the starts of following code words of the second set, since the corresponding code words of a set are written segment by segment, which results in a reduction of error propagation.
摘要翻译：在一种用于产生被划分成多组代码字的可变长度的码字的数据流的方法中，其中为数据流指定了具有段的光栅，其中两个相邻的光栅点定义了段，代码字的第一组被写入从光栅点开始的数据流。随后，根据预定的分配规则将第二组的代码字写入数据流，其中第二组的每个代码字被分配给不同的段。根据其分配不能写入的整个码字或代码字的部分被进一步尝试存储并输入到数据流中，其中通过预定调节的分配从尝试改变为尝试。对于可能存在的任何另外的集合，类似地重复该过程。因此，第二组的码字的末端与第二组的后续代码字的开始分离，因为一组的相应代码字逐段写入，这导致误差传播的减少。

5. 发明授权

US06975254B1 Methods and devices for coding or decoding an audio signal or bit stream 有权
标题翻译：用于对音频信号或位流进行编码或解码的方法和装置
公开(公告)号：US06975254B1
公开(公告)日：2005-12-13
申请号：US09869401
申请日：1998-12-28
申请人： Ralph Sperschneider , Martin Dietz , Andreas Ehret , Karlheinz Brandenburg , Heinz Gerhaeuser , Ali Nowbakht-Irani , Pierre Lauber , Roland Bitto
发明人： Ralph Sperschneider , Martin Dietz , Andreas Ehret , Karlheinz Brandenburg , Heinz Gerhaeuser , Ali Nowbakht-Irani , Pierre Lauber , Roland Bitto
IPC分类号： G10L19/02 , G10L19/032 , H03M7/00 , H03M7/30 , H03M7/40 , H03M13/35 , H04B1/66 , H04H20/00
CPC分类号： G10L19/032 , G10L19/0212 , H03M7/40 , H03M13/35 , H04B1/662
摘要： In a method for coding an audio signal to obtain a coded bit stream, discrete-time samples of the audio signal are transformed into the frequency domain to obtain spectral values. The spectral values are coded with a code table having a limited number of code words of different lengths to obtain spectral values coded by code words, the length of a code word assigned to a spectral value being that much shorter the higher the probability of occurrence of the spectral value is. A raster is then specified for the coded bit stream, the raster having equidistant raster points and the distance between the raster points depending on the code table(s) used. In order to obtain error-tolerant Huffman coding, priority code words, which represent particular spectral values which are psychoacoustically more important than other spectral values, are so arranged in the raster that the start of each priority code word coincides with a raster point.
摘要翻译：在用于编码音频信号以获得编码比特流的方法中，音频信号的离散时间采样被变换到频域以获得频谱值。频谱值用具有不同长度的有限数量的码字的码表编码，以获得由码字编码的频谱值，分配给频谱值的码字的长度远短于发生概率的频率值光谱值为。然后为编码比特流指定光栅，光栅具有等距的光栅点，并且根据所使用的代码表，光栅点之间的距离。为了获得容错霍夫曼编码，代表在心理学上比其他频谱值更重要的特定频谱值的优先码字被布置在光栅中，每个优先码字的开始与光栅点重合。

6. 发明授权

US07433825B1 Apparatus and method for producing a data stream and apparatus and method for reading a data stream 有权
标题翻译：用于产生数据流的装置和方法以及用于读取数据流的装置和方法
公开(公告)号：US07433825B1
公开(公告)日：2008-10-07
申请号：US09913708
申请日：2000-01-17
申请人： Ralph Sperschneider , Martin Dietz , Daniel Homm , Reinhold Böhm
发明人： Ralph Sperschneider , Martin Dietz , Daniel Homm , Reinhold Böhm
IPC分类号： G10L21/04
CPC分类号： H03M7/40
摘要： An entropy encoder includes an apparatus for producing a data stream which comprises two reference points, of code words of variable lengths, the apparatus comprising a first device for writing at least a part of a code word into the data stream in a first direction of writing, starting from a first reference point, and a second device for writing at least a part of a code word into the data stream in a second direction of writing, which is opposite to the first direction of writing, starting from the other reference point. In particular, when a raster having a plurality of segments is used to write the code words of variable lengths into the data stream, the number of the code words which can be written starting at raster points is doubled, in the best case, such that the data stream of code words of variable lengths is robust toward a propagation of sequence errors.
摘要翻译：熵编码器包括用于产生包括可变长度的码字的两个参考点的数据流的装置，该装置包括用于在第一写入方向上将码字的至少一部分写入数据流的第一装置从第一参考点开始，以及第二装置，用于从另一个参考点开始，以与第一写入方向相反的第二写入方向将码字的至少一部分写入数据流。特别地，当具有多个段的光栅被用于将可变长度的代码字写入数据流时，可以从光栅点开始写入的代码字的数量加倍，最好是使得可变长度的码字的数据流对于序列错误的传播是鲁棒的。

7. 发明授权

US08145498B2 Device and method for generating a coded multi-channel signal and device and method for decoding a coded multi-channel signal 有权
标题翻译：用于产生编码的多信道信号的装置和方法以及用于对编码的多信道信号进行解码的装置和方法
公开(公告)号：US08145498B2
公开(公告)日：2012-03-27
申请号：US11681658
申请日：2007-03-02
申请人： Juergen Herre , Ralph Sperschneider , Johannes Hilpert , Karsten Linzmeier , Harald Popp
发明人： Juergen Herre , Ralph Sperschneider , Johannes Hilpert , Karsten Linzmeier , Harald Popp
IPC分类号： G10L19/00
CPC分类号： G10L19/008 , H04S3/008
摘要： In a multi-channel encoder generating several different parameter sets for reconstructing a multi-channel output signal using at least one transmission channel, the data stream is written such that the two parameter sets are decodable independently of each other. Thus, a multi-channel decoder is enabled to skip a parameter set which is marked as optional and/or has a higher version number when reading the data stream and still to perform a valid multi-channel reconstruction using a data set marked as mandatory or a data set having a sufficiently low version number. This achieves a flexible encoder/decoder concept suitable for future updates characterized by backward compatibility and reliability.
摘要翻译：在多通道编码器中，生成用于使用至少一个传输通道重建多通道输出信号的多个不同参数组，数据流被写入，使得两个参数组彼此独立地解码。因此，多通道解码器能够跳过被标记为可选的参数集和/或在读取数据流时具有较高的版本号，并且仍然使用标记为强制的数据集来执行有效的多声道重构，或者具有足够低的版本号的数据集。这实现了适用于以向后兼容性和可靠性为特征的未来更新的灵活的编码器/解码器概念。

8. 发明申请

US20050144541A1 Device and method for concealing an error 有权
标题翻译：隐藏错误的设备和方法
公开(公告)号：US20050144541A1
公开(公告)日：2005-06-30
申请号：US10976540
申请日：2004-10-29
申请人： Daniel Homm , Ralph Sperschneider
发明人： Daniel Homm , Ralph Sperschneider
IPC分类号： G10L19/00 , H04N19/895 , G06F11/00
CPC分类号： G10L19/005 , H04N19/69 , H04N19/895
摘要： A device for concealing an error in an erroneous or potentially erroneous information unit generates output values of a forward decoder and a backward decoder which differ and thus indicate an error-concealment area. The different values for one and the same information unit are examined with regard to a predetermined criterion so as to select that value which meets the predetermined criterion, i.e. which is plausible. Thus, an elimination or reduction of the continuation errors introduced in the decoding of blocks of reversible code words of variable lengths is achieved without impacting the compression rate.
摘要翻译：用于隐藏错误或可能错误的信息单元中的错误的装置产生不同的因此指示错误隐藏区域的正向解码器和后向解码器的输出值。对于一个和相同信息单元的不同值，对于预定标准进行检查，以便选择满足预定标准的值，即似乎合理。因此，可以在不影响压缩率的情况下实现在可变长度的可逆码字的块的解码中引入的连续错误的消除或减少。

9. 发明授权

US08731204B2 Device and method for generating a multi-channel signal or a parameter data set 有权
标题翻译：用于产生多声道信号或参数数据组的装置和方法
公开(公告)号：US08731204B2
公开(公告)日：2014-05-20
申请号：US11683741
申请日：2007-03-08
申请人： Ralph Sperschneider , Juergen Herre , Johannes Hilpert , Christian Ertel , Stefan Geyersberger
发明人： Ralph Sperschneider , Juergen Herre , Johannes Hilpert , Christian Ertel , Stefan Geyersberger
IPC分类号： H04R5/00
CPC分类号： G10L19/008
摘要： For flexibly signaling a synchronous mode or an asynchronous mode in the multi-channel parameter reconstruction, a parameter configuration cue is inserted in the data stream, which is used by a configurator on the side of a multi-channel decoder to configure a multi-channel reconstructor. If the parameter configuration cue has a first meaning, the configurator will look for further configuration information in its input data, while, when the parameter configuration cue has another meaning, the configurator performs a configuration setting of the multi-channel reconstructor based on information on a coding algorithm with which transmission channel data have been coded, so that it is ensured efficiently on the one hand and flexibly on the other hand that there will always be obtained a correct association between parameter data and decoded transmission channel data.
摘要翻译：为了在多信道参数重建中灵活地发信号通知同步模式或异步模式，参数配置提示被插入数据流中，由多通道解码器侧的配置器使用该配置提示来配置多通道重建。如果参数配置提示具有第一个含义，则配置器将在其输入数据中查找更多配置信息，而当参数配置提示具有其他含义时，配置器将根据有关信息的信息执行多通道重建器的配置设置已经编码了传输信道数据的编码算法，从而一方面有效地确保并且灵活地确保总是获得参数数据和解码的传输信道数据之间的正确关联。

10. 发明授权

US08687829B2 Apparatus and method for multi-channel parameter transformation 有权
标题翻译：多通道参数变换装置及方法
公开(公告)号：US08687829B2
公开(公告)日：2014-04-01
申请号：US12445699
申请日：2007-10-05
申请人： Johannes Hilpert , Karsten Linzmeier , Juergen Herre , Ralph Sperschneider , Andreas Hoelzer , Lars Villemoes , Jonas Engdegard , Heiko Purnhagen , Kristofer Kjoerling , Dirk Jeroen Breebaart , Werner Oomen
发明人： Johannes Hilpert , Karsten Linzmeier , Juergen Herre , Ralph Sperschneider , Andreas Hoelzer , Lars Villemoes , Jonas Engdegard , Heiko Purnhagen , Kristofer Kjoerling , Dirk Jeroen Breebaart , Werner Oomen
IPC分类号： H04R5/02
CPC分类号： G10L19/173 , G10L19/008 , H04S2420/03
摘要： A parameter transformer generates level parameters, indicating an energy relation between a first and a second audio channel of a multi-channel audio signal associated to a multi-channel loudspeaker configuration. The level parameter are generated based on object parameters for a plurality of audio objects associated to a down-mix channel, which is generated using object audio signals associated to the audio objects. The object parameters have an energy parameter indicating an energy of the object audio signal. To derive the coherence and the level parameters, a parameter generator is used, which combines the energy parameter and object rendering parameters, which depend on a desired rendering configuration.
摘要翻译：参数变换器产生电平参数，指示与多声道扬声器配置相关联的多声道音频信号的第一和第二音频声道之间的能量关系。基于与下混通道相关联的多个音频对象的对象参数生成电平参数，该对象参数是使用与音频对象相关联的对象音频信号生成的。对象参数具有指示对象音频信号的能量的能量参数。为了得出一致性和等级参数，使用参数生成器，其结合能量参数和对象渲染参数，其依赖于所需的呈现配置。

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