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1. 发明申请

US20110077940A1 Speech encoding 有权
标题翻译：语音编码
公开(公告)号：US20110077940A1
公开(公告)日：2011-03-31
申请号：US12586915
申请日：2009-09-29
申请人： Koen Bernard Vos , Soren Skak Jensen
发明人： Koen Bernard Vos , Soren Skak Jensen
IPC分类号： G10L19/00
CPC分类号： G10L19/005 , G10L19/24
摘要： A method system and program for encoding and decoding a speech signal including error correction data. The method comprises: receiving a speech signal comprising successive frames, for each of a plurality of frames of the speech signal, analysing the speech signal to determine side information and a residual signal, encoding the residual signal at a first bit rate, and generating an output bitstream based on the residual signal encoded at the first bit rate, and for at least one of the plurality of frames of the speech signal, encoding the residual signal at a second bit rate that is lower than the first bit rate; and generating error correction data based on the residual signal encoded at the second bit rate.
摘要翻译：一种用于对包括纠错数据的语音信号进行编码和解码的方法系统和程序。该方法包括：对于语音信号的多个帧中的每一个，接收包括连续帧的语音信号，分析语音信号以确定侧信息和残差信号，以第一比特率编码残差信号，并生成基于以第一比特率编码的残留信号的输出比特流，以及对于语音信号的多个帧中的至少一个，以低于第一比特率的第二比特率对残留信号进行编码; 以及基于以第二比特率编码的残差信号产生纠错数据。

2. 发明申请

US20100174537A1 Speech coding 有权
标题翻译：语音编码
公开(公告)号：US20100174537A1
公开(公告)日：2010-07-08
申请号：US12455478
申请日：2009-06-02
申请人： Koen Bernard Vos , Soren Skak Jensen
发明人： Koen Bernard Vos , Soren Skak Jensen
IPC分类号： G10L19/14 , G10L21/02
CPC分类号： G10L19/12 , G10L19/09
摘要： A method, system and computer program for encoding speech according to a source-filter model. The method comprises deriving a spectral envelope signal representative of a modelled filter and a first remaining signal representative of a modelled source signal, and deriving a second remaining signal from the first remaining signal by, at intervals during the encoding: exploiting a correlation between approximately periodic portions in the first remaining signal to generate a predicted version of a later portion from a stored version of an earlier portion, and using the predicted-version of the later portion to remove an effect of said periodicity from the first remaining signal. The method further comprises, once every number of intervals, transforming the stored version of the earlier portion of the first remaining signal prior to generating the predicted version of the respective later portion.
摘要翻译：一种根据源滤波器模型对语音进行编码的方法，系统和计算机程序。该方法包括导出代表建模过滤器的频谱包络信号和表示建模源信号的第一剩余信号，以及在编码期间间隔从第一剩余信号导出第二剩余信号：利用近似周期性的相关性第一剩余信号中的部分，以从早期部分的存储版本生成稍后部分的预测版本，并且使用后面部分的预测版本来从第一剩余信号中去除所述周期性的影响。该方法还包括：每产生一次间隔之后，在生成相应较后部分的预测版本之前变换第一剩余信号的较早部分的存储版本。

3. 发明授权

US09449614B2 Controlling multi-party communications 有权
标题翻译：控制多方通信
公开(公告)号：US09449614B2
公开(公告)日：2016-09-20
申请号：US12583184
申请日：2009-08-14
申请人： Koen Bernard Vos , Julian Spittka , Henrik Aström , Karsten Vandborg Sorensen , Soren Skak Jensen
发明人： Koen Bernard Vos , Julian Spittka , Henrik Aström , Karsten Vandborg Sorensen , Soren Skak Jensen
IPC分类号： H04L12/16 , H04L12/66 , G10L25/78 , G10L19/012 , H04M3/56 , H04M7/00
CPC分类号： G10L25/78 , G10L19/012 , H04M3/568 , H04M7/006 , H04M2201/18 , H04M2250/62
摘要： A first user terminal, host terminal, method and program. The first terminal comprises: a transceiver for communicating with a plurality of other user terminals over a communication network; and communications processing apparatus, coupled to the transceiver, and arranged to participate in a call with a selected number of the other user terminals via the transceiver and communication network, the call including transmission of a voice signal from the first user terminal. The communications processing apparatus is operable in a mode whereby it temporarily discontinues transmission of the voice signal in response to detecting less than a predetermined level of activity on said voice signal, and the communications processing apparatus is further configured to selectively enable that mode in dependence on the selected number of other user terminals in the call.
摘要翻译：第一个用户终端，主机终端，方法和程序。第一终端包括：收发器，用于通过通信网络与多个其他用户终端通信; 以及通信处理装置，其耦合到所述收发器，并且被布置成经由所述收发器和通信网络参与与选定数量的其他用户终端的呼叫，所述呼叫包括来自所述第一用户终端的语音信号的传输。通信处理装置可以以这样的模式操作，由此响应于检测到所述语音信号上的预定活动水平而暂时停止语音信号的发送，并且通信处理装置还被配置为根据呼叫中所选择的其他用户终端数。

4. 发明授权

US08670981B2 Speech encoding and decoding utilizing line spectral frequency interpolation 有权
标题翻译：利用线谱频率插值的语音编码和解码
公开(公告)号：US08670981B2
公开(公告)日：2014-03-11
申请号：US12455752
申请日：2009-06-05
申请人： Koen Bernard Vos , Karsten Vandborg Sorensen , Soren Skak Jensen
发明人： Koen Bernard Vos , Karsten Vandborg Sorensen , Soren Skak Jensen
IPC分类号： G10L19/00
CPC分类号： G10L19/07 , G10L19/06 , G10L25/24
摘要： A method, system and program for encoding and decoding speech according to a source-filter model whereby speech is modelled to comprise a source signal filtered by a time-varying filter. The method comprises: receiving a speech signal comprising successive frames, for each of a plurality of frames of the speech signal, deriving a first line spectral frequency vector for a first portion of the frame, and a second line spectral frequency vector for a second portion of the frame, and determining a transmit line spectral frequency vector and an interpolation factor based on the first and second line spectral frequency vectors, and on the transmit line spectral frequency vector for a preceding one of the frames.
摘要翻译：一种用于根据源滤波器模型对语音进行编码和解码的方法，系统和程序，由此语音被建模为包括由时变滤波器滤波的源信号。该方法包括：对于语音信号的多个帧中的每一个，接收包括连续帧的语音信号，导出该帧的第一部分的第一线谱频率向量，以及用于第二部分的第二线谱频率向量以及基于第一和第二线谱频率矢量以及对于前一帧的发射线谱频率矢量确定发射线谱频率矢量和内插因子。

5. 发明申请

US20110038362A1 Controlling multi-party communications 有权
标题翻译：控制多方通信
公开(公告)号：US20110038362A1
公开(公告)日：2011-02-17
申请号：US12583184
申请日：2009-08-14
申请人： Koen Bernard Vos , Julian Spittka , Henrik Aström , Karsten Vandborg Sorensen , Soren Skak Jensen
发明人： Koen Bernard Vos , Julian Spittka , Henrik Aström , Karsten Vandborg Sorensen , Soren Skak Jensen
IPC分类号： H04L12/66 , G06F15/16
CPC分类号： G10L25/78 , G10L19/012 , H04M3/568 , H04M7/006 , H04M2201/18 , H04M2250/62
摘要： A first user terminal, host terminal, method and program. The first terminal comprises: a transceiver for communicating with a plurality of other user terminals over a communication network; and communications processing apparatus, coupled to the transceiver, and arranged to participate in a call with a selected number of the other user terminals via the transceiver and communication network, the call including transmission of a voice signal from the first user terminal. The communications processing apparatus is operable in a mode whereby it temporarily discontinues transmission of the voice signal in response to detecting less than a predetermined level of activity on said voice signal, and the communications processing apparatus is further configured to selectively enable that mode in dependence on the selected number of other user terminals in the call.
摘要翻译：第一个用户终端，主机终端，方法和程序。第一终端包括：收发器，用于通过通信网络与多个其他用户终端通信; 以及通信处理装置，其耦合到所述收发器，并且被布置成经由所述收发器和通信网络参与与选定数量的其他用户终端的呼叫，所述呼叫包括来自所述第一用户终端的语音信号的传输。通信处理装置可以以这样的模式操作，由此响应于检测到所述语音信号上的预定活动水平而暂时停止语音信号的发送，并且通信处理装置还被配置为根据呼叫中所选择的其他用户终端数。

6. 发明申请

US20100174532A1 Speech encoding 有权
标题翻译：语音编码
公开(公告)号：US20100174532A1
公开(公告)日：2010-07-08
申请号：US12455752
申请日：2009-06-05
申请人： Koen Bernard Vos , Karsten Vandborg Sorensen , Soren Skak Jensen
发明人： Koen Bernard Vos , Karsten Vandborg Sorensen , Soren Skak Jensen
IPC分类号： G10L19/14 , G10L21/00 , G10L19/00
CPC分类号： G10L19/07 , G10L19/06 , G10L25/24
摘要： A method, system and program for encoding and decoding speech according to a source-filter model whereby speech is modelled to comprise a source signal filtered by a time-varying filter. The method comprises: receiving a speech signal comprising successive frames, for each of a plurality of frames of the speech signal, deriving a first line spectral frequency vector for a first portion of the frame, and a second line spectral frequency vector for a second portion of the frame, and determining a transmit line spectral frequency vector and an interpolation factor based on the first and second line spectral frequency vectors, and on the transmit line spectral frequency vector for a preceding one of the frames.
摘要翻译：一种用于根据源滤波器模型对语音进行编码和解码的方法，系统和程序，由此语音被建模为包括由时变滤波器滤波的源信号。该方法包括：对于语音信号的多个帧中的每一个，接收包括连续帧的语音信号，导出该帧的第一部分的第一线谱频率向量，以及用于第二部分的第二线谱频率向量以及基于第一和第二线谱频率矢量以及对于前一个帧的发射线谱频率矢量确定发射线谱频率矢量和内插因子。

7. 发明授权

US08433563B2 Predictive speech signal coding 有权
标题翻译：预测语音信号编码
公开(公告)号：US08433563B2
公开(公告)日：2013-04-30
申请号：US12455478
申请日：2009-06-02
申请人： Koen Bernard Vos , Soren Skak Jensen
发明人： Koen Bernard Vos , Soren Skak Jensen
IPC分类号： G10L19/04 , G10L19/08
CPC分类号： G10L19/12 , G10L19/09
摘要： A method, system and computer program for encoding speech according to a source-filter model. The method comprises deriving a spectral envelope signal representative of a modelled filter and a first remaining signal representative of a modelled source signal, and deriving a second remaining signal from the first remaining signal by, at intervals during the encoding: exploiting a correlation between approximately periodic portions in the first remaining signal to generate a predicted version of a later portion from a stored version of an earlier portion, and using the predicted-version of the later portion to remove an effect of said periodicity from the first remaining signal. The method further comprises, once every number of intervals, transforming the stored version of the earlier portion of the first remaining signal prior to generating the predicted version of the respective later portion.
摘要翻译：一种根据源滤波器模型对语音进行编码的方法，系统和计算机程序。该方法包括导出代表建模过滤器的频谱包络信号和表示建模源信号的第一剩余信号，以及在编码期间间隔从第一剩余信号导出第二剩余信号：利用近似周期性的相关性第一剩余信号中的部分，以从早期部分的存储版本生成稍后部分的预测版本，并且使用后面部分的预测版本来从第一剩余信号中去除所述周期性的影响。该方法还包括：每产生一次间隔之后，在生成相应较后部分的预测版本之前变换第一剩余信号的较早部分的存储版本。

8. 发明申请

US20110137660A1 Encoding and decoding speech signals 有权
标题翻译：编码和解码语音信号
公开(公告)号：US20110137660A1
公开(公告)日：2011-06-09
申请号：US12803271
申请日：2010-06-23
申请人： Stefan Strommer , Karsten Vandborg Sorensen , Soren Skak Jensen , Koen Vos , Jon Bergenheim
发明人： Stefan Strommer , Karsten Vandborg Sorensen , Soren Skak Jensen , Koen Vos , Jon Bergenheim
IPC分类号： G10L21/00
CPC分类号： G10L19/26 , G10L19/24 , G10L21/0364
摘要： A method and apparatus for transmitting an audio signal over a communication channel comprising encoding the audio signal with an encoder 204 using a first sampling rate, filtering the audio signal using a first cut off frequency, the first cut off frequency being chosen in dependence upon the first sampling rate, and transmitting the encoded and filtered audio signal over the communication channel. The presence of a condition in which the sampling rate of the encoder 204 is to be switched to a second sampling rate at a switching time is determined and if the condition has been determined to be present, the cut off frequency used in the filtering step is gradually changed from the first cut off frequency to a second cut off frequency, the second cut off frequency being chosen in dependence upon the second sampling rate, such that the audio bandwidth of the transmitted signal changes gradually when the sampling rate is switched to the second sampling rate.
摘要翻译：一种用于通过通信信道发送音频信号的方法和装置，包括使用第一采样率对编码器204对音频信号进行编码，使用第一截止频率对音频信号进行滤波，第一截止频率根据第一采样率，并且通过通信信道发送编码和滤波的音频信号。确定在切换时刻将编码器204的采样率切换到第二采样率的条件的存在，如果已经确定存在条件，则在滤波步骤中使用的截止频率为从第一截止频率逐渐变化到第二截止频率，根据第二采样率选择第二截止频率，使得当采样速率切换到第二截止频率时，发送信号的音频带宽逐渐变化采样率。

9. 发明授权

US08885672B2 Method of transmitting data in a communication system 有权
标题翻译：在通信系统中传输数据的方法
公开(公告)号：US08885672B2
公开(公告)日：2014-11-11
申请号：US13484655
申请日：2012-05-31
申请人： Christoffer Rodbro , Soren Skak Jensen , Jonas Lindblom , Renat Vafin , Soren Vang Andersen
发明人： Christoffer Rodbro , Soren Skak Jensen , Jonas Lindblom , Renat Vafin , Soren Vang Andersen
IPC分类号： H04J3/06 , H04L12/66 , H04L12/64
CPC分类号： H04L12/6418 , H04L12/66 , H04L2012/6489
摘要： Processing of a signal received at a node in a network is described in which effects on the signal caused by applying an action to a first part of the signal are quantified based on characteristics of the first part of the signal and effects on the signal caused by not applying the action to the first part of the signal are quantified based on characteristics of a second, subsequent part of the signal. The action may then be selectively applied either to the first part of the signal or to the second part of the signal based upon the quantifications. In some embodiments, the action is applied to a portion of the signal for which the effects on at least one measure of the signal quality are less detrimental.
摘要翻译：描述在网络中的节点处接收的信号的处理，其中通过对信号的第一部分施加动作而对信号产生的影响被量化，基于信号的第一部分的特性并对由基于信号的第二部分的特性，量化不对信号的第一部分施加的动作。然后可以基于定量将该动作选择性地应用于信号的第一部分或信号的第二部分。在一些实施例中，该动作被施加到信号的对信号质量的至少一个测量的影响较小有害的部分信号。

10. 发明申请

US20080232521A1 Method of transmitting data in a communication system 有权
标题翻译：在通信系统中传输数据的方法
公开(公告)号：US20080232521A1
公开(公告)日：2008-09-25
申请号：US12004449
申请日：2007-12-20
申请人： Christoffer Rodbro , Soren Skak Jensen , Soren Vang Andersen
发明人： Christoffer Rodbro , Soren Skak Jensen , Soren Vang Andersen
IPC分类号： H04L7/00
CPC分类号： H04J3/0632 , H04L47/10 , H04L47/2416 , H04L47/283 , H04L47/29
摘要： A method of transmitting over a network a signal comprising a plurality of data elements the method comprising; receiving the signal at a terminal; determining a transmission delay of at least one data element; estimating a first component of the transmission delay; determining a second component of the transmission delay by removing the first component of the transmission delay from the transmission delay; and determining a receiver delay to be applied between receiving at the terminal and outputting from the terminal one of said plurality of data elements, in dependence on the second component of the transmission delay.
摘要翻译：一种通过网络发送包括多个数据元素的信号的方法，所述方法包括：在终端接收信号; 确定至少一个数据元素的传输延迟; 估计传输延迟的第一分量; 通过从传输延迟中去除传输延迟的第一分量来确定传输延迟的第二分量; 以及根据所述传输延迟的所述第二分量，确定在所述终端接收之间并且从所述多个数据元素中的一个输出端口之间应用的接收机延迟。

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