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1. 发明申请

WO2012159257A1 METHOD AND DECODER FOR RECONSTRUCTING A SOURCE SIGNAL 审中-公开
标题翻译：用于重构源信号的方法和解码器
公开(公告)号：WO2012159257A1
公开(公告)日：2012-11-29
申请号：PCT/CN2011/074508
申请日：2011-05-23
申请人： HUAWEI TECHNOLOGIES CO., LTD. , KLEJSA, Janusz , ZHANG, Guoqiang , LI, Minyue , KLEIJN, W. Bastiaan
发明人： KLEJSA, Janusz , ZHANG, Guoqiang , LI, Minyue , KLEIJN, W. Bastiaan
IPC分类号： H03M13/39
CPC分类号： H03M7/4006 , H03M7/3059 , H03M7/40 , H03M13/29 , H04B1/04 , H04N19/30 , H04N19/44
摘要： Method and decoder for reconstructing a source signal In a method for reconstructing a source signal, which is encoded (101) by a set of at least two descriptions, the source signal having a first probability density, wherein the first probability density comprises a first statistical moment and a second statistical moment, the method comprises: receiving (103) a subset of the set of descriptions; reconstructing (105) a reconstructed signal at an operating bitrate of a set of operating bitrates upon the basis of the subset of descriptions, the reconstructed signal having a second probability density, wherein the second probability density comprises a first statistical moment and a second statistical moment; and manipulating (107) the reconstructed signal in order to obtain a manipulated reconstructed signal having a third probability density, wherein the third probability density comprises a first statistical moment and a second statistical moment, wherein the reconstructed signal is manipulated such that at least the first statistical moment and the second statistical moment of the third probability density are more similar to the first statistical moment and the second statistical moment of the source signal than the first statistical moment and the second statistical moment of the second probability density are, and wherein furthermore the reconstructed signal is manipulated such that, irrespective of the operating bitrate, a predetermined minimum similarity between the first statistical moment of the third probability density and the first statistical moment of the first probability density and between the second statistical moment of the third probability density and the second statistical moment of the first probability density is maintained.
摘要翻译：用于重构源信号的方法和解码器在用于重建通过一组至少两个描述被编码（101）的源信号的方法中，源信号具有第一概率密度，其中第一概率密度包括第一统计时刻和第二统计时刻，所述方法包括：接收（103）所述描述集合的子集; 基于所述描述子集，以一组操作比特率的操作比特率重构（105）重构信号，所述重构信号具有第二概率密度，其中所述第二概率密度包括第一统计矩和第二统计时刻 ; 以及操纵（107）所述重构信号以便获得具有第三概率密度的操纵重构信号，其中所述第三概率密度包括第一统计矩和第二统计矩，其中所述重建信号被操纵，使得至少所述第一统计时刻和第三概率密度的第二统计时刻与第一统计时刻更相似，源信号的第二统计时刻比第一统计矩和第二概率密度的第二统计时刻更近，其中，操作重构信号，使得不管操作比特率，第三概率密度的第一统计时刻与第一概率密度的第一统计矩和第三概率密度的第二统计矩之间以及第三概率密度的第二统计矩之间的预定最小相似度第二个统计保持第一概率密度的稳定时刻。

2. 发明申请

WO2013026196A1 ESTIMATOR FOR ESTIMATING A PROBABILITY DISTRIBUTION OF A QUANTIZATION INDEX 审中-公开
标题翻译：估计定量指标的概率分布的估计
公开(公告)号：WO2013026196A1
公开(公告)日：2013-02-28
申请号：PCT/CN2011/078774
申请日：2011-08-23
申请人： HUAWEI TECHNOLOGIES CO., LTD. , KLEJSA, Janusz , LI, Minyue , KLEIJN, Willem Bastiaan
发明人： KLEJSA, Janusz , LI, Minyue , KLEIJN, Willem Bastiaan
IPC分类号： G06F17/50
CPC分类号： H03M7/00 , H03M7/3079 , H04N19/463 , H04N19/91
摘要： Estimator for estimating a probability distribution of a quantization index The invention relates to an estimator (1007) for estimating a probability distribution of a quantization index generated from a source coder encoding a source signal, into a sequence of quantization indices, the source signal being described by a signal model, the source coder providing a current quantization index and current side information, the estimator being configured to obtain auxiliary parameters based on a configuration of the source coder and the current available side information and the signal model, the estimator being further configured to adaptively update the probability distribution of a quantization index upon the basis of a probability density function relating to a previous state of the estimator, the auxiliary parameters, the current quantization index and the current side information.
摘要翻译：用于估计量化索引的概率分布的估计器技术领域本发明涉及一种用于估计从编码源信号的源编码器生成的量化索引的概率分布的量化索引的估计器，通过信号模型，源编码器提供当前量化索引和当前侧信息，所述估计器被配置为基于源编码器和当前可用侧信息和信号模型的配置来获得辅助参数，所述估计器进一步配置基于与估计器的先前状态，辅助参数，当前量化索引和当前侧信息相关的概率密度函数来自适应地更新量化索引的概率分布。

3. 发明申请

WO2013120510A1 A METHOD AND APPARATUS FOR PERFORMING AN ADAPTIVE DOWN- AND UP-MIXING OF A MULTI-CHANNEL AUDIO SIGNAL 审中-公开
标题翻译：用于执行多通道音频信号的自适应下行和上混合的方法和装置
公开(公告)号：WO2013120510A1
公开(公告)日：2013-08-22
申请号：PCT/EP2012/052443
申请日：2012-02-14
申请人： HUAWEI TECHNOLOGIES CO., LTD. , VIRETTE, David , KLEJSA, Janusz , KLEIJN, Willem Bastiaan
发明人： VIRETTE, David , KLEJSA, Janusz , KLEIJN, Willem Bastiaan
IPC分类号： G10L19/00
CPC分类号： G10L19/008
摘要： A method and apparatus for performing an adaptive down-mixing of a multichannel audio signal comprising a number of input channels,wherein a signal adaptive transformation of said input channels is performed by multiplying the input channels with a downmix block matrix comprising a fixed block for providing a set of backward compatible primary channels and a signal adaptive block for providing a set of secondary channels.
摘要翻译：一种用于执行包括多个输入通道的多通道音频信号的自适应降混的方法和装置，其中所述输入通道的信号自适应变换通过将输入通道与包括固定块的下混块矩阵相乘来进行，以提供一组向后兼容的主信道和用于提供一组次信道的信号自适应块。

4. 发明申请

WO2009045148A1 METHOD AND APPARATUS FOR MULTIPLE DESCRIPTION CODING 审中-公开
标题翻译：多种描述编码的方法和装置
公开(公告)号：WO2009045148A1
公开(公告)日：2009-04-09
申请号：PCT/SE2008/050355
申请日：2008-03-28
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , KUROPATWINSKI, Marcin , KLEJSA, Janusz , KLEIJN, Willem Bastiaan
发明人： KUROPATWINSKI, Marcin , KLEJSA, Janusz , KLEIJN, Willem Bastiaan
IPC分类号： H03M13/35
CPC分类号： H03M7/30 , H03M7/3057 , H03M13/353 , H04B7/0632 , H04B7/0634 , H04L5/0057
摘要： The present invention relates to a method and apparatus to be used in designing an index assignment matrix for use in multiple description coding of an information signal. The bandwidth of the index assignment matrix is selected in dependence of transmission condition information relating to a transmission condition of a communication channel onto which a description of the information signal can be transmitted.
摘要翻译：本发明涉及一种用于设计用于信息信号的多重描述编码的索引分配矩阵的方法和装置。根据与可以发送信息信号的描述的通信信道的发送条件相关的发送条件信息来选择索引分配矩阵的带宽。

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