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61. 发明申请

US20060293884A1 Apparatus and method for determining a quantizer step size 有权
公开(公告)号：US20060293884A1
公开(公告)日：2006-12-28
申请号：US11514006
申请日：2006-08-30
申请人： Bernhard Grill , Michael Schug , Bodo Teichmann , Nikolaus Rettelbach
发明人： Bernhard Grill , Michael Schug , Bodo Teichmann , Nikolaus Rettelbach
IPC分类号： G10L19/00
CPC分类号： G10L19/032 , G10L2019/0005
摘要： For determining a quantizer step size for quantizing a signal including audio or video information, a first quantizer step size as well as an interference threshold are provided. Then, the actual interference introduced by the first quantizer step size is determined and compared with the interference threshold. Despite the fact that the comparison reveals that the actually introduced interference exceeds the threshold, a second, coarser quantizer step size is nevertheless used, which will then be used for quantization if it turns out that the interference introduced by the coarser, second quantizer step size falls below the threshold or falls below the interference introduced by the first quantizer step size. Thus, the quantization interference is reduced while the quantization is coarsened and, thus, the compression gain is increased.

62. 发明申请

US20050017879A1 Scalable coder and decoder for a scaled stream 有权
标题翻译：可扩展编码器和解码器，用于缩放流
公开(公告)号：US20050017879A1
公开(公告)日：2005-01-27
申请号：US10500942
申请日：2002-12-11
申请人： Karsten Linzmeier , Nikolaus Rettelbach , Eric Allamanche , Bernhard Grill
发明人： Karsten Linzmeier , Nikolaus Rettelbach , Eric Allamanche , Bernhard Grill
IPC分类号： G10L19/02 , H04B1/66 , H03M7/00
CPC分类号： G10L19/02 , H04B1/66
摘要： A scalable encoder having a first encoder, a decoder and a second encoder includes, above that, a phase distorter to reduce a non-linear frequency-dependent phase distortion introduced by the first encoder or by the decoder, which results in an increased difference signal of a comparator. Thus, a difference signal with less energy is obtained that the second encoder can encode with less bits, that is with a higher bit efficiency.
摘要翻译：具有第一编码器，解码器和第二编码器的可缩放编码器包括以下相位变形器，用于减少由第一编码器或由解码器引入的非线性频率相关相位失真，其导致增加的差信号的比较器。因此，获得具有较少能量的差信号，使得第二编码器可以以较少位编码，即具有更高的比特效率。

63. 发明授权

US08731948B2 Audio signal synthesizer for selectively performing different patching algorithms 有权
标题翻译：音频信号合成器，用于选择性地执行不同的修补算法
公开(公告)号：US08731948B2
公开(公告)日：2014-05-20
申请号：US13004248
申请日：2011-01-11
申请人： Frederik Nagel , Sascha Disch , Nikolaus Rettelbach , Max Neuendorf , Bernhard Grill , Ulrich Kraemer , Stefan Wabnik
发明人： Frederik Nagel , Sascha Disch , Nikolaus Rettelbach , Max Neuendorf , Bernhard Grill , Ulrich Kraemer , Stefan Wabnik
IPC分类号： G10L19/00
CPC分类号： G10L21/038 , G10L19/02
摘要： An audio signal synthesizer generates a synthesis audio signal having a first frequency band and a second synthesized frequency band derived from the first frequency band and comprises a patch generator, a spectral converter, a raw signal processor and a combiner. The patch generator performs at least two different patching algorithms, each patching algorithm generating a raw signal. The patch generator is adapted to select one of the at least two different patching algorithms in response to a control information. The spectral converter converts the raw signal into a raw signal spectral representation. The raw signal processor processes the raw signal spectral representation in response to spectral domain spectral band replication parameters to obtain an adjusted raw signal spectral representation.
摘要翻译：音频信号合成器生成具有从第一频带导出的第一频带和第二合成频带的合成音频信号，并且包括片生成器，频谱转换器，原始信号处理器和组合器。补丁生成器执行至少两种不同的修补算法，每个修补算法生成原始信号。补丁生成器适于响应于控制信息来选择至少两个不同的修补算法之一。光谱转换器将原始信号转换为原始信号光谱表示。原始信号处理器响应于频域谱带复制参数处理原始信号频谱表示，以获得经调整的原始信号频谱表示。

64. 发明授权

US08756056B2 Apparatus and method for determining a quantizer step size 有权
标题翻译：用于确定量化器步长的装置和方法
公开(公告)号：US08756056B2
公开(公告)日：2014-06-17
申请号：US12496880
申请日：2009-07-02
申请人： Bernhard Grill , Michael Schug , Bodo Teichmann , Nikolaus Rettelbach
发明人： Bernhard Grill , Michael Schug , Bodo Teichmann , Nikolaus Rettelbach
IPC分类号： G10L19/032 , G10L19/002
CPC分类号： G10L19/032 , G10L2019/0005
摘要： For determining a quantizer step size for quantizing a signal including audio or video information, a first quantizer step size as well as an interference threshold are provided. Then, the actual interference introduced by the first quantizer step size is determined and compared with the interference threshold. Despite the fact that the comparison reveals that the actually introduced interference exceeds the threshold, a second, coarser quantizer step size is nevertheless used, which will then be used for quantization if it turns out that the interference introduced by the coarser, second quantizer step size falls below the threshold or falls below the interference introduced by the first quantizer step size. Thus, the quantization interference is reduced while the quantization is coarsened and, thus, the compression gain is increased.
摘要翻译：为了确定用于量化包括音频或视频信息的信号的量化器步长，提供第一量化器步长以及干扰阈值。然后，确定由第一量化器步长引入的实际干扰并将其与干扰阈值进行比较。尽管比较显示实际引入的干扰超过阈值，但是仍然使用第二较粗略的量化器步长，然后将其用于量化，如果证明由较粗的第二量化器步长引入的干扰低于阈值或低于由第一量化器步长引入的干扰。因此，量化干扰减小，而量化粗大，因此压缩增益增加。

65. 发明授权

US06980143B2 Scalable encoder and decoder for scaled stream 有权
标题翻译：可缩放编码器和解码器，用于缩放流
公开(公告)号：US06980143B2
公开(公告)日：2005-12-27
申请号：US10500942
申请日：2002-12-11
申请人： Karsten Linzmeier , Nikolaus Rettelbach , Eric Allamanche , Bernhard Grill
发明人： Karsten Linzmeier , Nikolaus Rettelbach , Eric Allamanche , Bernhard Grill
IPC分类号： G10L19/02 , H04B1/66 , H03M3/00
CPC分类号： G10L19/02 , H04B1/66
摘要： A scalable encoder having a first encoder, a decoder and a second encoder includes, above that, a phase distorter to reduce a non-linear frequency-dependent phase distortion introduced by the first encoder or by the decoder, which results in an increased difference signal of a comparator. Thus, a difference signal with less energy is obtained that the second encoder can encode with less bits, that is with a higher bit efficiency.
摘要翻译：具有第一编码器，解码器和第二编码器的可缩放编码器包括以下相位变形器，用于减少由第一编码器或由解码器引入的非线性频率相关相位失真，其导致增加的差信号的比较器。因此，获得具有较少能量的差信号，使得第二编码器可以以较少位编码，即具有更高的比特效率。

66. 发明授权

US08484038B2 Audio signal encoder, audio signal decoder, method for encoding or decoding an audio signal using an aliasing-cancellation 有权
标题翻译：音频信号编码器，音频信号解码器，使用混叠取消对音频信号进行编码或解码的方法
公开(公告)号：US08484038B2
公开(公告)日：2013-07-09
申请号：US13449949
申请日：2012-04-18
申请人： Bruno Bessette , Max Neuendorf , Ralf Geiger , Philippe Gournay , Roch Lefebvre , Bernhard Grill , Jeremie Lecomte , Stefan Bayer , Nikolaus Rettelbach , Lars Villemoes , Redwan Salami , Albertus C. Den Brinker
发明人： Bruno Bessette , Max Neuendorf , Ralf Geiger , Philippe Gournay , Roch Lefebvre , Bernhard Grill , Jeremie Lecomte , Stefan Bayer , Nikolaus Rettelbach , Lars Villemoes , Redwan Salami , Albertus C. Den Brinker
IPC分类号： G10L21/00 , G10L19/00
CPC分类号： G10L19/03 , G10L19/0212 , G10L19/20 , G10L2019/0008
摘要： An audio signal decoder includes a transform domain path configured to obtain a time-domain representation of a portion of an audio content on the basis of a first set of spectral coefficients, a representation of an aliasing-cancellation stimulus signal and a plurality of linear-prediction-domain parameters. The transform domain path applies a spectrum shaping to the first set of spectral coefficients to obtain a spectrally-shaped version thereof. The transform domain path obtains a time-domain representation of the audio content on the basis of the spectrally-shaped version of the first set of spectral coefficients. The transform domain path includes an aliasing-cancellation stimulus filter to filter the aliasing-cancellation stimulus signal in dependence on at least a subset of the linear-prediction-domain parameters. The transform domain path also includes a combiner configured to combine the time-domain representation of the audio content with an aliasing-cancellation synthesis signal to obtain an aliasing reduced time-domain signal.
摘要翻译：音频信号解码器包括变换域路径，被配置为基于第一组频谱系数获得音频内容的一部分的时域表示，混叠取消激励信号的表示和多个线性 - 预测域参数。变换域路径将频谱整形应用于第一组频谱系数，以获得其频谱形状的版本。变换域路径基于第一组频谱系数的频谱形式获得音频内容的时域表示。变换域路径包括混叠消除刺激滤波器，以根据线性预测域参数的至少一个子集来滤除混叠消除激励信号。变换域路径还包括组合器，其被配置为将音频内容的时域表示与混叠消除合成信号组合以获得混叠减小的时域信号。

67. 发明授权

US07574355B2 Apparatus and method for determining a quantizer step size 有权
标题翻译：用于确定量化器步长的装置和方法
公开(公告)号：US07574355B2
公开(公告)日：2009-08-11
申请号：US11514006
申请日：2006-08-30
申请人： Bernhard Grill , Michael Schug , Bodo Teichmann , Nikolaus Rettelbach
发明人： Bernhard Grill , Michael Schug , Bodo Teichmann , Nikolaus Rettelbach
IPC分类号： G10L19/14 , H04B14/00
CPC分类号： G10L19/032 , G10L2019/0005
摘要： For determining a quantizer step size for quantizing a signal including audio or video information, a first quantizer step size as well as an interference threshold are provided. Then, the actual interference introduced by the first quantizer step size is determined and compared with the interference threshold. Despite the fact that the comparison reveals that the actually introduced interference exceeds the threshold, a second, coarser quantizer step size is nevertheless used, which will then be used for quantization if it turns out that the interference introduced by the coarser, second quantizer step size falls below the threshold or falls below the interference introduced by the first quantizer step size. Thus, the quantization interference is reduced while the quantization is coarsened and, thus, the compression gain is increased.
摘要翻译：为了确定用于量化包括音频或视频信息的信号的量化器步长，提供第一量化器步长以及干扰阈值。然后，确定由第一量化器步长引入的实际干扰并将其与干扰阈值进行比较。尽管比较显示实际引入的干扰超过阈值，但是仍然使用第二较粗略的量化器步长，然后将其用于量化，如果证明由较粗的第二量化器步长引入的干扰低于阈值或低于由第一量化器步长引入的干扰。因此，量化干扰减小，而量化粗大，因此压缩增益增加。

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