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1. 发明授权

US08818799B2 Method of indicating presence of transient noise in a call and apparatus thereof 有权
标题翻译：指示呼叫中存在瞬态噪声的方法及其装置
公开(公告)号：US08818799B2
公开(公告)日：2014-08-26
申请号：US13179239
申请日：2011-07-08
申请人： Niklas Enbom , Roar Hagen , Jan Skoglund
发明人： Niklas Enbom , Roar Hagen , Jan Skoglund
IPC分类号： G10L21/02
CPC分类号： H04M3/561 , H04M3/18 , H04M2201/12
摘要： A method and an apparatus for indicating presence of a transient noise in a call are provided. The method comprises the steps of determining activity at an endpoint of the call by monitoring presence of a signal input from the endpoint into the call and monitoring presence of a potential source of transient noise at the endpoint. Further, based on the activity determination and the monitoring of the presence of a potential source of transient noise, a signal representative of the presence of a transient noise in the call is sent. The present invention is advantageous in that it enables improvement of the quality of the call.
摘要翻译：提供一种用于指示呼叫中的瞬态噪声的存在的方法和装置。该方法包括以下步骤：通过监视从端点输入到呼叫中的信号的存在来确定呼叫的端点处的活动，并监视端点处潜在的瞬态噪声源的存在。此外，基于活动确定和对潜在的瞬时噪声源的存在的监视，发送表示呼叫中存在瞬态噪声的信号。本发明的优点在于能够提高呼叫的质量。

2. 发明申请

US20120014514A1 METHOD OF INDICATING PRESENCE OF TRANSIENT NOISE IN A CALL AND APPARATUS THEREOF 有权
标题翻译：表示暂时停留在呼叫中的方法及其设备
公开(公告)号：US20120014514A1
公开(公告)日：2012-01-19
申请号：US13179239
申请日：2011-07-08
申请人： Niklas Enbom , Roar Hagen , Jan Skoglund
发明人： Niklas Enbom , Roar Hagen , Jan Skoglund
IPC分类号： G01R29/26 , H04M3/22
CPC分类号： H04M3/561 , H04M3/18 , H04M2201/12
摘要： A method and an apparatus for indicating presence of a transient noise in a call are provided. The method comprises the steps of determining activity at an endpoint of the call by monitoring presence of a signal input from the endpoint into the call and monitoring presence of a potential source of transient noise at the endpoint. Further, based on the activity determination and the monitoring of the presence of a potential source of transient noise, a signal representative of the presence of a transient noise in the call is sent. The present invention is advantageous in that it enables improvement of the quality of the call.
摘要翻译：提供一种用于指示呼叫中的瞬态噪声的存在的方法和装置。该方法包括以下步骤：通过监视从端点输入到呼叫中的信号的存在来确定呼叫的端点处的活动，并监视端点处潜在的瞬态噪声源的存在。此外，基于活动确定和对潜在的瞬时噪声源的存在的监视，发送表示呼叫中存在瞬态噪声的信号。本发明的优点在于能够提高呼叫的质量。

3. 发明授权

US09426592B2 Audio clipping detection 有权
标题翻译：音频剪辑检测
公开(公告)号：US09426592B2
公开(公告)日：2016-08-23
申请号：US13767387
申请日：2013-02-14
申请人： Jan Skoglund , Jan Thomas Linden
发明人： Jan Skoglund , Jan Thomas Linden
IPC分类号： H04R29/00 , G10L25/69
CPC分类号： H04R29/00 , G10L25/69
摘要： Methods and systems for detecting the presence and frequency of clipping in an audio signal are provided. A clipping detection algorithm detects the presence of hard and soft clipping using histograms with intervals of samples, rather than attempting to identify the clipping value. Therefore, it is not essential to the algorithm that there be a large number of bins. Furthermore, the bins may be non-uniformly distributed since the number of samples belonging to lower amplitudes is of little importance. The detection algorithm is also configured to determine the severity and/or perceptual effect of any clipping found to be present in the signal by calculating the ratio of clipped samples to non-clipped samples. Temporal information on the occurrence of clipping in the signal is also used to evaluate perceptual effect.
摘要翻译：提供了用于检测音频信号中的限幅的存在和频率的方法和系统。剪辑检测算法使用具有样本间隔的直方图来检测是否存在硬和软剪辑，而不是尝试识别剪切值。因此，算法不是必须存在大量的分组。此外，由于属于较低振幅的样本数量几乎不重要，因此可能不均匀分布。检测算法还被配置为通过计算剪切样本与非剪切样本的比率来确定发现存在于信号中的任何限幅的严重性和/或感知效果。关于信号中剪辑发生的时间信息也用于评估感知效果。

4. 发明授权

US09026451B1 Pitch post-filter 有权
标题翻译：间距后置滤波器
公开(公告)号：US09026451B1
公开(公告)日：2015-05-05
申请号：US13846368
申请日：2013-03-18
申请人： Willem Bastiaan Kleijn , Jan Skoglund
发明人： Willem Bastiaan Kleijn , Jan Skoglund
IPC分类号： G10L21/00 , G10L19/26 , G10L19/008
CPC分类号： G10L19/26 , G10L19/008
摘要： Methods and systems for using pitch predictors in speech/audio coders are provided. Techniques for optimal pre- and post-filtering are presented, and a general result that post-filtering is more effective than pre-filtering is derived. A practical paired-zero filter design for the low-rate regime is proposed, and this design is extended to handle frequency-dependent periodicity levels. Further, the methods described provide a general performance measure for a post-filter that only uses information available at the decoder, thereby allowing for the optimization or selection of a post-filter without increasing the rate.
摘要翻译：提供了在语音/音频编码器中使用音调预测器的方法和系统。提出了用于最佳前置和后置滤波的技术，得出了后置滤波比预滤波更有效的一般结果。提出了一种用于低速率方案的实用配对零滤波器设计，并将该设计扩展到处理频率依赖周期水平。此外，所描述的方法提供了仅使用解码器可用的信息的后置滤波器的一般性能测量，从而允许优化或选择后置滤波器而不增加速率。

5. 发明授权

US08724823B2 Method and apparatus for reducing noise pumping due to noise suppression and echo control interaction 有权
标题翻译：用于减少由噪声抑制和回波控制相互作用引起的噪声抽吸的方法和装置
公开(公告)号：US08724823B2
公开(公告)日：2014-05-13
申请号：US13112962
申请日：2011-05-20
申请人： Andrew John MacDonald , Jan Skoglund , Björn Volcker
发明人： Andrew John MacDonald , Jan Skoglund , Björn Volcker
IPC分类号： H04B3/20
CPC分类号： G10L21/0208 , G10L25/18 , G10L2021/02082 , H04M9/082
摘要： An input signal is processed through noise suppression (NS) and echo control (EC) via a multipath model that reduces noise pumping effects while maintaining EC performance. A copy of a “noisy” input signal is sent to an EC component before the noisy signal is sent to a NS component, which processes the signal first, when there is a consistent noise level for estimation. The copy of the pre-processing noisy signal is sent to the EC component along with a “clean” or “noise-suppressed” signal output from the NS component. The EC component analyzes the noisy signal as if the EC was the first component in the signal chain to determine what actions to take. The EC component then applies these actions to the clean signal received from the NS component.
摘要翻译：通过噪声抑制（NS）和回波控制（EC）通过多径模型处理输入信号，可以在保持EC性能的同时降低噪声泵浦效应。在噪声信号被发送到NS分量之前，“噪声”输入信号的副本被发送到EC分量，该NS分量首先处理信号，当存在用于估计的一致的噪声电平时。预处理噪声信号的副本与从NS分量输出的“干净”或“噪声抑制”信号一起发送到EC分量。 EC组件分析噪声信号，就好像EC是信号链中的第一个组件，以确定采取什么行动。 EC组件然后将这些动作应用于从NS组件接收的干净信号。

6. 发明授权

US07756350B2 Lossless encoding and decoding of digital data 有权
标题翻译：数字数据的无损编码和解码
公开(公告)号：US07756350B2
公开(公告)日：2010-07-13
申请号：US11595995
申请日：2006-11-13
申请人： Koen Vos , Jan Skoglund
发明人： Koen Vos , Jan Skoglund
IPC分类号： G06K9/36 , H04N7/12 , G06K9/46
CPC分类号： G10L19/0017 , G10L19/0212 , G10L19/035 , H03M7/4006 , H04N19/13 , H04N19/60 , H04N19/91
摘要： The disclosure relates to encoding and decoding of digital data, and in particular to lossless arithmetic encoding and decoding of digital data representing audio, image or video data. A probability density function used for lossless arithmetic encoding of digital data is controlled by employing one or more parameters that changes over the set of data to be encoded. A parametric model in the form of an envelope function describes the spread of quantization indices derived from the data in a transform domain. By transmitting the one or more parameters together with the arithmetically encoded data, a receiving decoder may decode the data by exploiting the same parametric model as used by the encoder.
摘要翻译：本公开涉及数字数据的编码和解码，特别是涉及表示音频，图像或视频数据的数字数据的无损算术编码和解码。用于数字数据的无损算术编码的概率密度函数通过采用改变要编码的数据集的一个或多个参数来控制。以包络函数形式的参数模型描述了从变换域中的数据导出的量化索引的扩展。通过将一个或多个参数与算术编码数据一起发送，接收解码器可以通过利用由编码器使用的相同参数模型对数据进行解码。

7. 发明授权

US08983085B2 Method and apparatus for reducing noise pumping due to noise suppression and echo control interaction 有权
标题翻译：用于减少由噪声抑制和回波控制相互作用引起的噪声抽吸的方法和装置
公开(公告)号：US08983085B2
公开(公告)日：2015-03-17
申请号：US13345351
申请日：2012-01-06
申请人： Andrew John MacDonald , Jan Skoglund , Björn Volcker
发明人： Andrew John MacDonald , Jan Skoglund , Björn Volcker
IPC分类号： H04B3/20 , G10L21/0208 , H04M9/08 , G10L25/18
CPC分类号： G10L21/0208 , G10L25/18 , G10L2021/02082 , H04M9/082
摘要： An input signal is processed through noise suppression (NS) and echo control (EC) via a multipath model that reduces noise pumping effects while maintaining EC performance. A copy of a “noisy” input signal is sent to an EC component before the noisy signal is sent to a NS component, which processes the signal first, when there is a consistent noise level for estimation. The copy of the pre-processing noisy signal is sent to the EC component along with a “clean” or “noise-suppressed” signal output from the NS component. The EC component analyzes the noisy signal as if the EC was the first component in the signal chain to determine what actions to take. The EC component then applies these actions to the clean signal received from the NS component.
摘要翻译：通过噪声抑制（NS）和回波控制（EC）通过多径模型处理输入信号，可以在保持EC性能的同时降低噪声泵浦效应。在噪声信号被发送到NS分量之前，“噪声”输入信号的副本被发送到EC分量，该NS分量首先处理信号，当存在用于估计的一致的噪声电平时。预处理噪声信号的副本与从NS分量输出的“干净”或“噪声抑制”信号一起发送到EC分量。 EC组件分析噪声信号，就好像EC是信号链中的第一个组件，以确定采取什么行动。 EC组件然后将这些动作应用于从NS组件接收的干净信号。

8. 发明申请

US20120294452A1 METHOD AND APPARATUS FOR REDUCING NOISE PUMPING DUE TO NOISE SUPPRESSION AND ECHO CONTROL INTERACTION 有权
标题翻译：用于减少噪声抑制和噪声控制相互作用的方法和装置
公开(公告)号：US20120294452A1
公开(公告)日：2012-11-22
申请号：US13112962
申请日：2011-05-20
申请人： Andrew John MACDONALD , Jan Skoglund , Björn Volcker
发明人： Andrew John MACDONALD , Jan Skoglund , Björn Volcker
IPC分类号： H04B3/20
CPC分类号： G10L21/0208 , G10L25/18 , G10L2021/02082 , H04M9/082
摘要： An input signal is processed through noise suppression (NS) and echo control (EC) via a multipath model that reduces noise pumping effects while maintaining EC performance. A copy of a “noisy” input signal is sent to an EC component before the noisy signal is sent to a NS component, which processes the signal first, when there is a consistent noise level for estimation. The copy of the pre-processing noisy signal is sent to the EC component along with a “clean” or “noise-suppressed” signal output from the NS component. The EC component analyzes the noisy signal as if the EC was the first component in the signal chain to determine what actions to take. The EC component then applies these actions to the clean signal received from the NS component.
摘要翻译：通过噪声抑制（NS）和回波控制（EC）通过多径模型处理输入信号，可以在保持EC性能的同时降低噪声泵浦效应。在噪声信号被发送到NS分量之前，噪声输入信号的副本被发送到EC分量，该NS分量首先处理信号，当存在用于估计的一致的噪声电平时。预处理噪声信号的副本与从NS分量输出的干净或噪声抑制的信号一起发送到EC分量。 EC组件分析噪声信号，就好像EC是信号链中的第一个组件，以确定采取什么行动。 EC组件然后将这些动作应用于从NS组件接收的干净信号。

9. 发明授权

US08233632B1 Method and apparatus for multi-channel audio processing using single-channel components 有权
公开(公告)号：US08233632B1
公开(公告)日：2012-07-31
申请号：US13244816
申请日：2011-09-26
申请人： Andrew John MacDonald , Jan Skoglund , Björn Volcker
发明人： Andrew John MacDonald , Jan Skoglund , Björn Volcker
IPC分类号： H03B29/00 , H04M9/08 , H04B3/20
CPC分类号： H04M9/08 , G10L19/008 , G10L2021/02082
摘要： Processing multi-channel audio streams using one or more arrangements of single-channel components. Components that only process the near-end, or capture stream, such as noise suppression (NS) components, are limited in how they can be suitably arranged for processing multi-channel streams. However, components that process the near-end stream using one or more inputs from the far-end, or render stream, such as acoustic echo cancellation (AEC) and automatic gain control (AGC) components, are arranged in one or more of the ways suitable for use with multiple channels.

10. 发明申请

US20100213701A1 METHOD AND DEVICE FOR JOINING PIPES 审中-公开
标题翻译：用于接管的方法和装置
公开(公告)号：US20100213701A1
公开(公告)日：2010-08-26
申请号：US11994909
申请日：2006-07-07
申请人： Gunnar Blomqvist , Jan Skoglund
发明人： Gunnar Blomqvist , Jan Skoglund
IPC分类号： F16L47/03 , F16L47/00
CPC分类号： F16L47/02 , B29C53/78 , B29C65/20 , B29C65/305 , B29C66/1142 , B29C66/301 , B29C66/5221 , B29C66/71 , B29C66/80 , B29C66/91421 , B29C66/91645 , B29C66/919 , B29K2023/06 , B29K2023/0641 , B29K2023/065 , B29K2023/12 , B29K2101/12 , B29L2023/22 , B29L2024/006
摘要： The invention concerns a method and device for joining thermoplastics pipes manufactured by spiral winding of a hollow profile. The method according to the invention is characterized in that a welding mirror (5) adaptable to the prepared end surfaces of the pipes and provided with heating means, is inserted in the slot between the pipes (1), the pipe ends are pressed against the heated welding mirror to heat the thermoplastics material at the end of the pipe ends to a welding temperature to render the plastics material on the joint surface plastic, the welding mirror (5) is removed from between the pipes, the heated pipe ends are pressed against each other so that the thermoplastics materials melt together to form a welded joint, and the welded joint is allowed to cool. The welding mirror (5, 5′) according to the invention is characterized in that the welding mirror is adaptable to the shape of the end surface of the pipe cut along a radial side wall (6) of the hollow profile.
摘要翻译：本发明涉及一种用于连接由空心轮廓的螺旋卷绕制造的热塑性塑料管的方法和装置。根据本发明的方法的特征在于，适用于准备的管的端面并设置有加热装置的焊接镜（5）插入在管（1）之间的狭槽中，管端压靠加热的焊接镜将管末端的热塑性材料加热至焊接温度，使塑料在接合表面上成为塑料，焊接反射镜（5）从管道之间移除，加热的管端压紧使热塑性材料熔融在一起形成焊接接头，使焊接接头冷却。根据本发明的焊接镜（5,5'）的特征在于，所述焊接镜适用于沿着所述中空轮廓的径向侧壁（6）切割的所述管道的端面的形状。

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