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1.发明授权Complex signal activity detection for improved speech/noise classification of an audio signal 有权用于改善音频信号的语音/噪声分类的复杂信号活动检测公开(公告)号：US06424938B1
公开(公告)日：2002-07-23
申请号：US09434787
申请日：1999-11-05
IPC分类号： G10L1908
CPC分类号： G10L25/78 , G10L2025/783
摘要： Perceptually relevant non-speech information can be preserved during encoding of an audio signal by determining whether the audio signal includes such information. If so, a speech/noise classification of the audio signal is overriden to prevent misclassification of the audio signal as noise.
摘要翻译： 通过确定音频信号是否包括这样的信息，可以在音频信号的编码期间保留感知相关的非语音信息。 如果是这样，则音频信号的语音/噪声分类被覆盖以防止音频信号被错误地分类为噪声。
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公开(公告)号：US06275798B1
公开(公告)日：2001-08-14
申请号：US09154361
申请日：1998-09-16
IPC分类号： G10L1520
CPC分类号： G10L19/012 , G10L19/083
摘要： In producing an approximation of an original speech signal from encoded information about the original speech signal, current parameters associated with a current segment of the original speech signal are determined from the encoded information. Reproduction of a noise component of the original speech signal is improved by using at least one of the current parameters and corresponding previous parameters respectively associated with previous segments of the original speech signal to produce a modified parameter. The modified parameter is then used to produce an approximation of the current segment of the original speech signal.
摘要翻译： 在从关于原始语音信号的编码信息产生原始语音信号的近似值时，根据编码信息确定与原始语音信号的当前段相关联的当前参数。 通过使用分别与原始语音信号的先前片段相关联的当前参数和对应的先前参数中的至少一个来产生修改的参数来改进原始语音信号的噪声分量的再现。 然后，修改的参数用于产生原始语音信号的当前段的近似。
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公开(公告)号：US20100232297A1
公开(公告)日：2010-09-16
申请号：US12438443
申请日：2007-05-28
CPC分类号： H04L1/0003 , H04L1/0009 , H04L1/0014 , H04L1/0015 , H04L1/0016
摘要： The present invention is to select an adaptation scheme for the transmission of the encoded media that results in a satisfactory performance of the transmitted encoded media. A difference from the prior art is that each adaptation scheme defines a set of different transmission formats, wherein each transmission formats is a combination of at least two of the parameters the source codec bit rate, the packet rate, the number of frames of each packet (referred to as frame aggregation), and the level of redundancy. By using the different transmission formats, the transmission can be adapted to different operating scenarios and the performance is hence improved.
摘要翻译： 本发明是选择用于传输编码媒体的适应方案，其导致所传送的编码媒体的令人满意的性能。 与现有技术的不同之处在于每个适配方案定义了一组不同的传输格式，其中每个传输格式是源编解码器比特率，分组速率，每个分组的帧数的至少两个参数的组合 （简称帧聚合）和冗余级别。 通过使用不同的传输格式，传输可以适应不同的操作场景，从而改善性能。
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4.发明授权公开(公告)号：US08438018B2
公开(公告)日：2013-05-07
申请号：US12278529
申请日：2006-02-06
申请人： Ingemar Johansson , Jonas Svedberg
发明人： Ingemar Johansson , Jonas Svedberg
IPC分类号： G10L19/00
CPC分类号： G10L19/24 , G10L19/005 , H04L47/10
摘要： The present invention relates to speech coding in wireless and wireline communication systems. The present invention provides a method of saving bandwidth by a controlled dropping of speech frames at an encoder in a sending communication device. The dropping is controlled in a manner to minimize the effects on the speech quality after the decoding in the receiving communication device, by assuring that the state mismatch between the encoder and the decoder is removed or at least significantly reduced. This is achieved by letting the encoder run an ECU algorithm with a similar behavior as the one running in the decoder in the receiving communication device.
摘要翻译： 本发明涉及无线和有线通信系统中的语音编码。 本发明提供了一种通过在发送通信设备中的编码器处控制丢弃语音帧来节省带宽的方法。 通过确保去除或至少显着地减少编码器和解码器之间的状态不匹配，在接收通信设备中解码之后，以最小化对语音质量的影响的方式来控制丢弃。 这通过使编码器运行具有与在接收通信设备中的解码器中运行的ECU算法类似的行为的ECU算法来实现。
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公开(公告)号：US08422382B2
公开(公告)日：2013-04-16
申请号：US12438443
申请日：2007-05-28
IPC分类号： G06F11/00
CPC分类号： H04L1/0003 , H04L1/0009 , H04L1/0014 , H04L1/0015 , H04L1/0016
摘要： The present invention is to select an adaptation scheme for the transmission of the encoded media that results in a satisfactory performance of the transmitted encoded media. A difference from the prior art is that each adaptation scheme defines a set of different transmission formats, wherein each transmission formats is a combination of at least two of the parameters the source codec bit rate, the packet rate, the number of frames of each packet (referred to as frame aggregation), and the level of redundancy. By using the different transmission formats, the transmission can be adapted to different operating scenarios and the performance is hence improved.
摘要翻译： 本发明是选择用于传输编码媒体的适应方案，其导致所传送的编码媒体的令人满意的性能。 与现有技术的不同之处在于每个适配方案定义了一组不同的传输格式，其中每个传输格式是源编解码器比特率，分组速率，每个分组的帧数的至少两个参数的组合 （简称帧聚合）和冗余级别。 通过使用不同的传输格式，传输可以适应不同的操作场景，从而改善性能。
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6.发明授权Speech coding with comfort noise variability feature for increased fidelity 有权具有舒适噪声变化特征的语音编码功能，提高了保真度公开(公告)号：US07124079B1
公开(公告)日：2006-10-17
申请号：US09391768
申请日：1999-09-08
申请人： Ingemar Johansson , Erik Ekudden , Roar Hagen
发明人： Ingemar Johansson , Erik Ekudden , Roar Hagen
IPC分类号： G10L21/02
CPC分类号： G10L19/012
摘要： The quality of comfort noise generated by a speech decoder during non-speech periods is improved by modifying comfort noise parameter values normally used to generate the comfort noise. The comfort noise parameter values are modified in response to variability information associated with a background noise parameter. The modified comfort noise parameter values are then used to generate the comfort noise.
摘要翻译： 通过改变通常用于产生舒适噪声的舒适噪声参数值来改善在非语音周期期间由语音解码器产生的舒适噪声的质量。 响应于与背景噪声参数相关联的变异性信息修改舒适噪声参数值。 然后使用改进的舒适噪声参数值来产生舒适噪声。
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7.发明申请公开(公告)号：US20090177465A1
公开(公告)日：2009-07-09
申请号：US12278529
申请日：2006-02-06
申请人： Ingemar Johansson , Jonas Svedberg
发明人： Ingemar Johansson , Jonas Svedberg
IPC分类号： G10L19/00
CPC分类号： G10L19/24 , G10L19/005 , H04L47/10
摘要： The present invention relates to speech coding in wireless and wireline communication systems. The present invention provides a method of saving bandwidth by a controlled dropping of speech frames at an encoder in a sending communication device. The dropping is controlled in a manner to minimize the effects on the speech quality after the decoding in the receiving communication device, by assuring that the state mismatch between the encoder and the decoder is removed or at least significantly reduced. This is achieved by letting the encoder run an ECU algorithm with a similar behavior as the one running in the decoder in the receiving communication device.
摘要翻译： 本发明涉及无线和有线通信系统中的语音编码。 本发明提供一种通过在发送通信设备中的编码器处控制丢弃语音帧来节省带宽的方法。 通过确保去除或至少显着地减少编码器和解码器之间的状态不匹配，在接收通信设备中解码之后，以最小化对语音质量的影响的方式来控制丢弃。 这通过使编码器运行具有与在接收通信设备中的解码器中运行的ECU算法类似的行为的ECU算法来实现。
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公开(公告)号：US20140341015A1
公开(公告)日：2014-11-20
申请号：US14361797
申请日：2011-12-01
申请人： Ingemar Johansson , Tomas Frankkila
发明人： Ingemar Johansson , Tomas Frankkila
IPC分类号： H04L29/06 , H04L12/811
摘要： An ECN flow controller (22) reduces packet header compression overhead due to high ECN rate. It includes an ECN filter (24) configured to redistribute, with at least approximately maintained ECN rate, ECN-CE marks among headers to reduce switching between ECN-CE marked and ECT marked headers.
摘要翻译： ECN流量控制器（22）由于高ECN速率而降低了包头压缩开销。 它包括一个ECN滤波器（24），配置为在标题中以至少近似维持的ECN速率重新分配ECN-CE标记，以减少ECN-CE标记和ECT标记的标题之间的切换。
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9.发明授权Method and arrangement for improving media transmission quality using robust representation of media frames 有权使用媒体帧的鲁棒表示来提高媒体传输质量的方法和装置公开(公告)号：US08411697B2
公开(公告)日：2013-04-02
申请号：US12278493
申请日：2007-02-06
IPC分类号： H04L12/54
CPC分类号： H04L1/0014 , H04L1/1812
摘要： In a method of improved media frame transmission in a communication network. Initially a plurality of “original” or regular media frames are provided for transmission. According to the invention, robust representations of the provided regular media frames are generated and stored locally. Subsequently, one or more of the regular media frames is/are transmitted. The invention detects an indication of a loss of a transmitted media frame, and the idea is to transmit, in response to a detected frame loss, a stored robust representation of the lost media frame and/or a stored robust representation of a subsequent, not yet transmitted, media frame to increase the media quality.
摘要翻译： 在通信网络中改进媒体帧传输的方法中。 最初提供多个原始或常规的媒体帧用于传输。 根据本发明，提供的常规媒体帧的鲁棒表示被生成并存储在本地。 随后，传送一个或多个常规媒体帧。 本发明检测到传输的媒体帧丢失的指示，并且该思想是响应于检测到的帧丢失而发送丢失的媒体帧的存储的鲁棒表示和/或后续的不存在的鲁棒表示 传播媒体框架，提高媒体品质。
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公开(公告)号：US20100238805A1
公开(公告)日：2010-09-23
申请号：US12678208
申请日：2008-08-21
IPC分类号： H04L12/24
CPC分类号： H04L1/0002 , H04L47/10 , H04L47/11 , H04L47/12 , H04L47/14 , H04L47/24 , H04L47/31 , H04W28/02 , H04W28/22 , H04W72/1205
摘要： A method of controlling a radio access network entity of a data unit communication network is described, said radio access network entity being involved in providing a transport service to a radio terminal of said data unit communication network, said transport service being characterized by a set of values associated with respective service quality parameters, said method comprising: monitoring (S30) a communication quality at the radio access level of a communication between said terminal and an access point of said radio access network, and setting (S31) a congestion indication marking in data units of said transport service if said communication quality fulfils a radio communication degradation condition.
摘要翻译： 描述了一种控制数据单元通信网络的无线电接入网络实体的方法，所述无线电接入网络实体涉及向所述数据单元通信网络的无线终端提供传输服务，所述传输服务的特征在于一组 所述方法包括：监视（S30）所述终端与所述无线电接入网络的接入点之间的通信的无线电接入级的通信质量，并且设置（S31）拥塞指示标记 如果所述通信质量满足无线电通信降级条件，则所述传输服务的数据单元。
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