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    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
    2.
    发明申请
    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
    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。

    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
    3.
    发明授权
    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
    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。

    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
    5.
    发明授权
    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
    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。

    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
    8.
    发明申请
    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
    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。

    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
    9.
    发明申请
    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
    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。

    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
    10.
    发明授权
    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
    音频编码器，音频解码器，用于对音频信息进行编码的方法，用于使用迭代间隔尺寸减小来解码音频信息的方法和计算机程序

    公开(公告)号：US08655669B2

    公开(公告)日：2014-02-18

    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。