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1. 发明授权

US08898068B2 Audio encoder, audio decoder, method for encoding and audio information, method for decoding an audio information and computer program using a modification of a number representation of a numeric previous context value 有权
标题翻译：音频编码器，音频解码器，用于编码和音频信息的方法，使用数字上一个上下文值的数字表示的修改来解码音频信息的方法和计算机程序
公开(公告)号：US08898068B2
公开(公告)日：2014-11-25
申请号：US13547664
申请日：2012-07-12
申请人： Vignesh Subbaraman , Guillaume Fuchs , Markus Multrus , Nikolaus Rettelbach , Oliver Weiss , Marc Gayer , Patrick Warmbold , Christian Griebel
发明人： Vignesh Subbaraman , Guillaume Fuchs , Markus Multrus , Nikolaus Rettelbach , Oliver Weiss , Marc Gayer , Patrick Warmbold , Christian Griebel
IPC分类号： G10L21/00 , G10L19/00 , G10L19/02
CPC分类号： G10L19/02 , G10L19/0017 , G10L19/002
摘要： An audio decoder includes an arithmetic decoder for providing decoded spectral values on the basis of an arithmetically-encoded representation of the spectral values and a frequency-domain-to-time-domain converter for providing a time-domain audio representation using the decoded spectral values. The arithmetic decoder selects a mapping rule describing a mapping of a code value onto a symbol code in dependence on a context state described by a numeric current context value, and determines the numeric current context value in dependence on a plurality of previously-decoded spectral values. The arithmetic decoder modifies a number representation of a numeric previous context value, describing a context state associated with one or more previously decoded spectral values, in dependence on a context subregion value, to acquire a number representation of a numeric current context value describing a context state associated with one or more spectral values to be decoded. An audio encoder uses a similar concept.
摘要翻译：音频解码器包括用于根据频谱值的算术编码表示提供解码频谱值的算术解码器和用于使用解码频谱值提供时域音频表示的频域 - 时域转换器。算术解码器根据由数字当前上下文值描述的上下文状态来选择描述代码值到符号代码上的映射规则，并根据多个先前解码的频谱值确定数字当前上下文值。算术解码器根据上下文子区域修改数字前一上下文值的数字表示，描述与一个或多个先前解码的频谱值相关联的上下文状态，以获取描述上下文的数字当前上下文值的数字表示状态与要解码的一个或多个频谱值相关联。音频编码器使用类似的概念。

2. 发明申请

US20130013322A1 AUDIO ENCODER, AUDIO DECODER, METHOD FOR ENCODING AND DECODING AN AUDIO INFORMATION, AND COMPUTER PROGRAM OBTAINING A CONTEXT SUB-REGION VALUE ON THE BASIS OF A NORM OF PREVIOUSLY DECODED SPECTRAL VALUES 有权
标题翻译：音频编码器，音频解码器，用于编码和解码音频信息的方法以及基于先前解码的频谱值的正态分布获取上下文分区值的计算机程序
公开(公告)号：US20130013322A1
公开(公告)日：2013-01-10
申请号：US13547640
申请日：2012-07-12
申请人： Guillaume Fuchs , Markus Multrus , Nikolaus Rettelbach , Vignesh Subbaraman , Oliver Weiss , Marc Gayer , Patrick Warmbold , Christian Griebel
发明人： Guillaume Fuchs , Markus Multrus , Nikolaus Rettelbach , Vignesh Subbaraman , Oliver Weiss , Marc Gayer , Patrick Warmbold , Christian Griebel
IPC分类号： G10L19/00
CPC分类号： G10L19/02 , G10L19/0017 , G10L19/002
摘要： An audio decoder has an arithmetic decoder for providing decoded spectral values on the basis of an arithmetically-encoded representation and a frequency-domain-to-time-domain converter for providing a time-domain audio representation. The arithmetic decoder selects a mapping rule describing a mapping of a code value onto a symbol code in dependence on a context state described by a numeric current context value which is determined in dependence on previously decoded spectral values. The arithmetic decoder obtains a plurality of context subregion values on the basis of previously decoded spectral values and derives a numeric current context value associated with one or more spectral values to be decoded in dependence on stored context subregion values. The arithmetic decoder computes the norm of a vector formed by a plurality of previously decoded spectral values in order to obtain a common context subregion value. An audio encoder uses a similar concept.
摘要翻译：音频解码器具有算术解码器，用于基于算术编码的表示提供解码的频谱值，以及用于提供时域音频表示的频域 - 时域转换器。算术解码器根据由根据先前解码的频谱值确定的数字当前上下文值描述的上下文状态来选择描述代码值到符号代码上的映射规则的映射规则。算术解码器基于先前解码的频谱值获得多个上下文子区域值，并且根据存储的上下文子区域值导出与待解码的一个或多个频谱值相关联的数字当前上下文值。算术解码器计算由多个先前解码的频谱值形成的矢量的范数，以便获得公共的上下文子区域值。音频编码器使用类似的概念。

3. 发明申请

US20110288873A1 AUDIO ENCODER AND BANDWIDTH EXTENSION DECODER 有权
标题翻译：音频编码器和带宽扩展解码器
公开(公告)号：US20110288873A1
公开(公告)日：2011-11-24
申请号：US13158547
申请日：2011-06-13
申请人： Frederik NAGEL , Sascha DISCH , Guillaume FUCHS , Juergen HERRE , Christian GRIEBEL
发明人： Frederik NAGEL , Sascha DISCH , Guillaume FUCHS , Juergen HERRE , Christian GRIEBEL
IPC分类号： G10L19/00
CPC分类号： G10L19/265 , G10L19/00 , G10L19/24 , G10L21/038
摘要： An audio encoder for providing an output signal using an input audio signal includes a patch generator, a comparator and an output interface. The patch generator generates at least one bandwidth extension high-frequency signal, wherein a bandwidth extension high-frequency signal includes a high-frequency band. The high-frequency band of the bandwidth extension high-frequency signal is based on a low frequency band of the input audio signal. A comparator calculates a plurality of comparison parameters. A comparison parameter is calculated based on a comparison of the input audio signal and a generated bandwidth extension high-frequency signal. Each comparison parameter of the plurality of comparison parameters is calculated based on a different offset frequency between the input audio signal and a generated bandwidth extension high-frequency signal. Further, the comparator determines a comparison parameter from the plurality of comparison parameters, wherein the determined comparison parameter fulfils a predefined criterion.
摘要翻译：用于使用输入音频信号提供输出信号的音频编码器包括片生成器，比较器和输出接口。贴片发生器产生至少一个带宽扩展高频信号，其中带宽扩展高频信号包括高频带。带宽扩展高频信号的高频带基于输入音频信号的低频带。比较器计算多个比较参数。基于输入音频信号和产生的带宽扩展高频信号的比较来计算比较参数。基于输入音频信号与生成的带宽扩展高频信号之间的不同偏移频率来计算多个比较参数的每个比较参数。此外，比较器确定来自多个比较参数的比较参数，其中确定的比较参数满足预定标准。

4. 发明授权

US08682681B2 Audio encoder, audio decoder, method for encoding and decoding an audio information, and computer program obtaining a context sub-region value on the basis of a norm of previously decoded spectral values 有权
标题翻译：音频编码器，音频解码器，用于对音频信息进行编码和解码的方法，以及基于先前解码的频谱值的范数获得上下文子区域值的计算机程序
公开(公告)号：US08682681B2
公开(公告)日：2014-03-25
申请号：US13547640
申请日：2012-07-12
申请人： Guillaume Fuchs , Markus Multrus , Nikolaus Rettelbach , Vignesh Subbaraman , Oliver Weiss , Marc Gayer , Patrick Warmbold , Christian Griebel
发明人： Guillaume Fuchs , Markus Multrus , Nikolaus Rettelbach , Vignesh Subbaraman , Oliver Weiss , Marc Gayer , Patrick Warmbold , Christian Griebel
IPC分类号： G10L19/00 , G10L21/06
CPC分类号： G10L19/02 , G10L19/0017 , G10L19/002
摘要： An audio decoder has an arithmetic decoder for providing decoded spectral values on the basis of an arithmetically-encoded representation and a frequency-domain-to-time-domain converter for providing a time-domain audio representation. The arithmetic decoder selects a mapping rule describing a mapping of a code value onto a symbol code in dependence on a context state described by a numeric current context value which is determined in dependence on previously decoded spectral values. The arithmetic decoder obtains a plurality of context subregion values on the basis of previously decoded spectral values and derives a numeric current context value associated with one or more spectral values to be decoded in dependence on stored context subregion values. The arithmetic decoder computes the norm of a vector formed by a plurality of previously decoded spectral values in order to obtain a common context subregion value. An audio encoder uses a similar concept.
摘要翻译：音频解码器具有算术解码器，用于基于算术编码的表示提供解码的频谱值，以及用于提供时域音频表示的频域 - 时域转换器。算术解码器根据由根据先前解码的频谱值确定的数字当前上下文值描述的上下文状态来选择描述代码值到符号代码上的映射规则的映射规则。算术解码器基于先前解码的频谱值获得多个上下文子区域值，并且根据存储的上下文子区域值导出与待解码的一个或多个频谱值相关联的数字当前上下文值。算术解码器计算由多个先前解码的频谱值形成的矢量的范数，以便获得公共的上下文子区域值。音频编码器使用类似的概念。

5. 发明授权

US08645145B2 Audio encoder, audio decoder, method for encoding and audio information, method for decoding an audio information and computer program using a hash table describing both significant state values and interval boundaries 有权
标题翻译：音频编码器，音频解码器，用于编码和音频信息的方法，使用描述重要状态值和间隔边界的散列表对音频信息和计算机程序进行解码的方法
公开(公告)号：US08645145B2
公开(公告)日：2014-02-04
申请号：US13547600
申请日：2012-07-12
申请人： Vignesh Subbaraman , Guillaume Fuchs , Markus Multrus , Nikolaus Rettelbach , Marc Gayer , Oliver Weiss , Christian Griebel , Patrick Warmbold
发明人： Vignesh Subbaraman , Guillaume Fuchs , Markus Multrus , Nikolaus Rettelbach , Marc Gayer , Oliver Weiss , Christian Griebel , Patrick Warmbold
IPC分类号： G10L21/00 , G10L21/04 , H03M7/34 , H03M7/08 , H03M7/00 , G06F17/00 , G06F9/26
CPC分类号： G10L19/02 , G10L19/0017 , G10L19/002
摘要： An audio decoder includes an arithmetic decoder for providing a plurality of decoded spectral values on the basis of an arithmetically encoded representation of the spectral values, and a frequency-domain-to-time-domain converter for providing a time-domain audio representation using the decoded spectral values. The arithmetic decoder selects a mapping rule describing a mapping of a code value onto a symbol code in dependence on a context state described by a numeric current context value. The arithmetic decoder determines the numeric current context value in dependence on a plurality of previously decoded spectral values. The arithmetic decoder evaluates a hash table, entries of which define both significant state values and boundaries of intervals of numeric context values, in order to select the mapping rule. A mapping rule index value is individually associated to a numeric context value being a significant state value.
摘要翻译：音频解码器包括算术解码器，用于基于频谱值的算术编码表示来提供多个解码频谱值;以及频域 - 时域转换器，用于使用解码的光谱值。算术解码器根据由数字当前上下文值描述的上下文状态来选择描述代码值到符号代码上的映射的映射规则。算术解码器根据多个先前解码的频谱值来确定数字电流上下文值。算术解码器评估散列表，其条目定义了数值上下文值的间隔的重要状态值和边界，以便选择映射规则。映射规则索引值分别与作为重要状态值的数字上下文值相关联。

6. 发明授权

US08612240B2 Audio encoder, audio decoder, method for encoding an audio information, method for decoding an audio information and computer program using a region-dependent arithmetic coding mapping rule 有权
标题翻译：音频编码器，音频解码器，用于对音频信息进行编码的方法，使用区域依赖的算术编码映射规则解码音频信息的方法和计算机程序
公开(公告)号：US08612240B2
公开(公告)日：2013-12-17
申请号：US13450699
申请日：2012-04-19
申请人： Guillaume Fuchs , Vignesh Subbaraman , Nikolaus Rettelbach , Markus Multrus , Marc Gayer , Patrick Warmbold , Christian Griebel , Oliver Weiss
发明人： Guillaume Fuchs , Vignesh Subbaraman , Nikolaus Rettelbach , Markus Multrus , Marc Gayer , Patrick Warmbold , Christian Griebel , Oliver Weiss
IPC分类号： G10L19/032
CPC分类号： G10L19/008 , G10L19/0017 , G10L19/0208
摘要： An audio decoder for providing a decoded audio information includes an arithmetic decoder for providing a plurality of decoded spectral values on the basis of an arithmetically-encoded representation of the spectral values and a frequency-domain-to-time-domain converter for providing a time-domain audio representation using decoded spectral values. The arithmetic decoder is configured to select a mapping rule describing a mapping of a code value onto a symbol code in dependence on a context state. The arithmetic decoder is configured to determine a numeric current context value describing the current context state in dependence on a plurality of previously decoded spectral values and also in dependence on whether a spectral value to be decoded is in a first predetermined frequency region or in a second predetermined frequency region. An audio encoder provides an encoded audio information on the basis of an input audio information.
摘要翻译：用于提供解码音频信息的音频解码器包括算术解码器，用于根据频谱值的算术编码表示提供多个解码频谱值，以及频域 - 时域转换器，用于提供时间 - 使用解码频谱值的域音频表示。算术解码器被配置为根据上下文状态选择描述代码值到符号代码上的映射规则的映射规则。算术解码器被配置为根据多个先前解码的频谱值来确定描述当前上下文状态的数字当前上下文值，并且还根据要解码的频谱值是否处于第一预定频率区域或者在第二预定频率区域中预定频率区域。音频编码器基于输入的音频信息提供经编码的音频信息。

7. 发明申请

US20130013323A1 AUDIO ENCODER, AUDIO DECODER, METHOD FOR ENCODING AND AUDIO INFORMATION, METHOD FOR DECODING AN AUDIO INFORMATION AND COMPUTER PROGRAM USING A MODIFICATION OF A NUMBER REPRESENTATION OF A NUMERIC PREVIOUS CONTEXT VALUE 有权
公开(公告)号：US20130013323A1
公开(公告)日：2013-01-10
申请号：US13547664
申请日：2012-07-12
申请人： Vignesh Subbaraman , Guillaume Fuchs , Markus Multrus , Nikolaus Rettelbach , Oliver Weiss , Marc Gayer , Patrick Warmbold , Christian Griebel
发明人： Vignesh Subbaraman , Guillaume Fuchs , Markus Multrus , Nikolaus Rettelbach , Oliver Weiss , Marc Gayer , Patrick Warmbold , Christian Griebel
IPC分类号： G10L19/00
CPC分类号： G10L19/02 , G10L19/0017 , G10L19/002
摘要： An audio decoder includes an arithmetic decoder for providing decoded spectral values on the basis of an arithmetically-encoded representation of the spectral values and a frequency-domain-to-time-domain converter for providing a time-domain audio representation using the decoded spectral values. The arithmetic decoder selects a mapping rule describing a mapping of a code value onto a symbol code in dependence on a context state described by a numeric current context value, and determines the numeric current context value in dependence on a plurality of previously-decoded spectral values. The arithmetic decoder modifies a number representation of a numeric previous context value, describing a context state associated with one or more previously decoded spectral values, in dependence on a context subregion value, to acquire a number representation of a numeric current context value describing a context state associated with one or more spectral values to be decoded. An audio encoder uses a similar concept.

8. 发明申请

US20120330670A1 AUDIO ENCODER, AUDIO DECODER, METHOD FOR ENCODING AN AUDIO INFORMATION, METHOD FOR DECODING AN AUDIO INFORMATION AND COMPUTER PROGRAM USING AN ITERATIVE INTERVAL SIZE REDUCTION 有权
标题翻译：音频编码器，音频解码器，用于编码音频信息的方法，用于解码音频信息的方法和使用迭代间隔尺寸减小的计算机程序
公开(公告)号：US20120330670A1
公开(公告)日：2012-12-27
申请号：US13450713
申请日：2012-04-19
申请人： Guillaume Fuchs , Vignesh Subbaraman , Nikolaus Rettelbach , Markus Multrus , Marc Gayer , Patrick Warmbold , Christian Griebel , Oliver Weiss
发明人： Guillaume Fuchs , Vignesh Subbaraman , Nikolaus Rettelbach , Markus Multrus , Marc Gayer , Patrick Warmbold , Christian Griebel , Oliver Weiss
IPC分类号： G10L19/00
CPC分类号： G10L19/008 , G10L19/0017 , G10L19/0208
摘要： An audio decoder has an arithmetic decoder for providing decoded spectral values on the basis of an arithmetically-encoded representation and a frequency-domain-to-time-domain converter for providing a time-domain audio representation. The arithmetic decoder selects a mapping rule describing a mapping of a code value onto a symbol code in dependence on a numeric current context value describing a current context state. The arithmetic decoder determines the numeric current context value in dependence on a plurality of previously decoded spectral values. The arithmetic decoder evaluates at least one table using an iterative interval size reduction to determine whether the numeric current context value is identical to a table context value described by an entry of the table or lies within an interval described by entries of the table, and derives a mapping rule index value describing a selected mapping table.An audio encoder also uses an iterative interval table size reduction.
摘要翻译：音频解码器具有算术解码器，用于基于算术编码的表示提供解码的频谱值，以及用于提供时域音频表示的频域 - 时域转换器。算术解码器根据描述当前上下文状态的数字当前上下文值选择描述代码值到符号代码上的映射规则的映射规则。算术解码器根据多个先前解码的频谱值来确定数字电流上下文值。算术解码器使用迭代间隔大小缩小来评估至少一个表，以确定数字当前上下文值是否与由表的条目描述的表上下文值相同或位于由表的条目描述的间隔内，并且导出描述所选择的映射表的映射规则索引值。音频编码器还使用迭代间隔表尺寸缩小。

9. 发明申请

US20120265540A1 AUDIO ENCODER, AUDIO DECODER, METHOD FOR ENCODING AN AUDIO INFORMATION, METHOD FOR DECODING AN AUDIO INFORMATION AND COMPUTER PROGRAM USING A DETECTION OF A GROUP OF PREVIOUSLY-DECODED SPECTRAL VALUES 有权
标题翻译：音频编码器，音频解码器，用于编码音频信息的方法，用于解码音频信息的方法和使用检测以前解码的光谱值的计算机程序
公开(公告)号：US20120265540A1
公开(公告)日：2012-10-18
申请号：US13450014
申请日：2012-04-18
申请人： Guillaume Fuchs , Vignesh Subbaraman , Nikolaus Rettelbach , Markus Multrus , Marc Gayer , Patrick Warmbold , Christian Griebel , Oliver Weiss
发明人： Guillaume Fuchs , Vignesh Subbaraman , Nikolaus Rettelbach , Markus Multrus , Marc Gayer , Patrick Warmbold , Christian Griebel , Oliver Weiss
IPC分类号： G10L19/00
CPC分类号： G10L19/008 , G10L19/0017 , G10L19/0208
摘要： An audio decoder for providing a decoded audio information includes a arithmetic decoder for providing a plurality of decoded spectral values on the basis of an arithmetically-encoded representation of the spectral values and a frequency-domain-to-time-domain converter for providing a time-domain audio representation using the decoded spectral values. The arithmetic decoder is configured to select a mapping rule describing a mapping of a code value onto a symbol code in dependence on a context state. The arithmetic decoder is configured to determine or modify the current context state in dependence on a plurality of previously-decoded spectral values. The arithmetic decoder is configured to detect a group of a plurality of previously-decoded spectral values, which fulfill, individually or taken together, a predetermined condition regarding their magnitudes, and to determine the current context state in dependence on a result of the detection.An audio encoder uses similar principles.
摘要翻译：用于提供经解码的音频信息的音频解码器包括算术解码器，用于根据频谱值的算术编码表示提供多个解码频谱值，以及频域 - 时域转换器，用于提供时间 - 使用解码的谱值的域音频表示。算术解码器被配置为根据上下文状态选择描述代码值到符号代码上的映射规则的映射规则。算术解码器被配置为根据多个先前解码的频谱值来确定或修改当前上下文状态。算术解码器被配置为检测多个先前解码的频谱值的组，它们单独地或一起实现关于其幅度的预定条件，并且根据检测结果来确定当前上下文状态。音频编码器使用类似的原理。

10. 发明授权

US08706510B2 Audio encoder, audio decoder, method for encoding an audio information, method for decoding an audio information and computer program using a detection of a group of previously-decoded spectral values 有权
标题翻译：音频编码器，音频解码器，用于对音频信息进行编码的方法，用于使用先前解码的频谱值的检测对音频信息和计算机程序进行解码的方法
公开(公告)号：US08706510B2
公开(公告)日：2014-04-22
申请号：US13450014
申请日：2012-04-18
申请人： Guillaume Fuchs , Vignesh Subbaraman , Nikolaus Rettelbach , Markus Multrus , Marc Gayer , Patrick Warmbold , Christian Griebel , Oliver Weiss
发明人： Guillaume Fuchs , Vignesh Subbaraman , Nikolaus Rettelbach , Markus Multrus , Marc Gayer , Patrick Warmbold , Christian Griebel , Oliver Weiss
IPC分类号： G10L19/00 , G10L19/02 , G10L11/00
CPC分类号： G10L19/008 , G10L19/0017 , G10L19/0208
摘要： An audio decoder for providing a decoded audio information includes a arithmetic decoder for providing a plurality of decoded spectral values on the basis of an arithmetically-encoded representation of the spectral values and a frequency-domain-to-time-domain converter for providing a time-domain audio representation using the decoded spectral values. The arithmetic decoder is configured to select a mapping rule describing a mapping of a code value onto a symbol code in dependence on a context state. The arithmetic decoder is configured to determine or modify the current context state in dependence on a plurality of previously-decoded spectral values. The arithmetic decoder is configured to detect a group of a plurality of previously-decoded spectral values, which fulfill, individually or taken together, a predetermined condition regarding their magnitudes, and to determine the current context state in dependence on a result of the detection.An audio encoder uses similar principles.
摘要翻译：用于提供经解码的音频信息的音频解码器包括算术解码器，用于根据频谱值的算术编码表示提供多个解码频谱值，以及频域 - 时域转换器，用于提供时间 - 使用解码的谱值的域音频表示。算术解码器被配置为根据上下文状态选择描述代码值到符号代码上的映射规则的映射规则。算术解码器被配置为根据多个先前解码的频谱值来确定或修改当前上下文状态。算术解码器被配置为检测多个先前解码的频谱值的组，它们单独地或一起实现关于其幅度的预定条件，并且根据检测结果来确定当前上下文状态。音频编码器使用类似的原理。

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