专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US07356748B2 Partial spectral loss concealment in transform codecs 有权
标题翻译：变换编解码器中部分频谱损耗隐藏
公开(公告)号：US07356748B2
公开(公告)日：2008-04-08
申请号：US11011780
申请日：2004-12-15
申请人： Anisse Taleb
发明人： Anisse Taleb
IPC分类号： H04L1/00
CPC分类号： H04L63/1441 , G06F21/56 , G06F2221/03 , H04B1/667 , H04L51/12 , H04L63/1483 , H04L63/20 , H04N19/48 , H04N19/895
摘要： The invention concerns a frequency-domain error concealment technique for information that is represented, on a frame-by-frame basis, by coding coefficients. The basic idea is to conceal an erroneous coding coefficient by exploiting coding coefficient correlation in both time and frequency. The technique is applicable to any information, such as audio, video and image data, that is compressed into coding coefficients and transmitted under adverse channel conditions. The error concealment technique proposed by the invention has the clear advantage of exploiting the redundancy of the original information signal in time as well as frequency. For example, this offers the possibility to exploit redundancy between frames (inter-frame) as well as within frames (intra-frame). The use of coding coefficients from the same frame as the erroneous coding coefficient is sometimes referred to as intra-frame coefficient correlation and it is a special case of the more general frequency correlation.
摘要翻译：本发明涉及用于通过编码系数逐帧地表示的信息的频域错误隐藏技术。基本思想是通过利用时间和频率上的编码系数相关性来隐藏错误的编码系数。该技术适用于压缩成编码系数并在不利信道条件下发送的任何信息，如音频，视频和图像数据。本发明提出的错误隐藏技术具有在时间和频率上开发原始信息信号冗余的明显优点。例如，这提供了利用帧（帧间）以及帧内（帧内）之间的冗余的可能性。使用与错误编码系数相同的帧的编码系数有时被称为帧内系数相关，并且是更一般的频率相关的特殊情况。

22. 发明授权

US09330671B2 Energy conservative multi-channel audio coding 有权
标题翻译：节能多声道音频编码
公开(公告)号：US09330671B2
公开(公告)日：2016-05-03
申请号：US13122880
申请日：2009-09-25
申请人： Erik Norvell , Martin Sehlstedt , Anisse Taleb
发明人： Erik Norvell , Martin Sehlstedt , Anisse Taleb
IPC分类号： G10L19/008
CPC分类号： G10L19/008
摘要： The invention relates to the technical field of audio encoding and/or decoding technologies, and thus concerns an overall encoding procedure and associated decoding procedure. The encoding procedure involves at least two signal encoding processes (S1-S3) operating on signal representations of a set of audio input channels, as well as residual encoding (S7-S8). It also involves a dedicated process (S4-S6) to estimate and encode energies of the audio input channels. Each encoding process is associated with a corresponding decoding process. In the overall decoding procedure the decoded signals from each encoding process are preferably combined such that the output channels are close to the input channels in terms of energy and/or quality. Normally, the combination step also adapts to the possible loss of one or more signal representation in part or in whole, such that the energy and quality is optimized with the signals at hand in the decoder. In this way, the overall quality of the output channels is improved.
摘要翻译：本发明涉及音频编码和/或解码技术的技术领域，因此涉及整体编码过程和相关联的解码过程。编码过程涉及对一组音频输入通道的信号表示进行操作的至少两个信号编码处理（S1-S3）以及残差编码（S7-S8）。它还涉及专门的过程（S4-S6）来估计和编码音频输入通道的能量。每个编码过程与相应的解码过程相关联。在整个解码过程中，优选地组合来自每个编码处理的解码信号，使得输出信道在能量和/或质量方面靠近输入信道。通常，组合步骤还适应于部分或全部的一个或多个信号表示的可能损失，使得能量和质量被解码器中的手头信号优化。这样，输出通道的整体质量得到提高。

23. 发明授权

US08000967B2 Low-complexity code excited linear prediction encoding 有权
标题翻译：低复杂度码激励线性预测编码
公开(公告)号：US08000967B2
公开(公告)日：2011-08-16
申请号：US11074928
申请日：2005-03-09
申请人： Anisse Taleb
发明人： Anisse Taleb
IPC分类号： G10L13/00
CPC分类号： G10L19/10
摘要： Information about excitation signals of a first signal encoded by CELP is used to derive a limited set of candidate excitation signals for a second correlated second signal. Preferably, pulse locations of the excitation signals of the first encoded signal are used for determining the set of candidate excitation signals. More preferably, the pulse locations of the set of candidate excitation signals are positioned in the vicinity of the pulse locations of the excitation signals of the first encoded signal. The first and second signals may be multi-channel signals of a common speech or audio signal. However, the first and second signals may also be identical, whereby the coding of the second signal can be utilized for re-encoding at a lower bit rate.
摘要翻译：关于由CELP编码的第一信号的激励信号的信息用于导出用于第二相关第二信号的候选激励信号的有限集合。优选地，第一编码信号的激励信号的脉冲位置用于确定候选激励信号的集合。更优选地，该组候选激励信号的脉冲位置位于第一编码信号的激励信号的脉冲位置附近。第一和第二信号可以是公共语音或音频信号的多声道信号。然而，第一和第二信号也可以是相同的，由此第二信号的编码可以用于以较低的比特率进行重新编码。

24. 发明申请

US20100250265A1 Low-Complexity Spectral Analysis/Synthesis Using Selectable Time Resolution 有权
标题翻译：使用可选择的时间分辨率的低复杂度光谱分析/综合
公开(公告)号：US20100250265A1
公开(公告)日：2010-09-30
申请号：US12675461
申请日：2008-08-25
申请人： Anisse Taleb
发明人： Anisse Taleb
IPC分类号： G10L21/00
CPC分类号： G10L19/02 , G10L19/022
摘要： The signal processing is based on the concept of using a time-domain aliased (12, TDA) frame as a basis for time segmentation (14) and spectral analysis (16), performing segmentation in time based on the time-domain aliased frame and performing spectral analysis based on the resulting time segments. The time resolution of the overall ?segmented? time-to-frequency transform can thus be changed by simply adapting the time segmentation to obtain a suitable number of time segments based on which spectral analysis is applied. The overall set of spectral coefficients, obtained for all the segments, provides a selectable time-frequency tiling of the original signal frame.
摘要翻译：信号处理基于使用时域混叠（12，TDA）帧作为时间分割（14）和频谱分析（16）的基础的概念，基于时域混叠帧在时间上执行分割，并且基于所得到的时间段进行光谱分析。因此，通过简单地调整时间分割以基于哪个频谱分析被应用来获得合适数量的时间段，可以改变整个“分段”时间 - 频率变换的时间分辨率。对于所有段获得的总体频谱系数集合提供了原始信号帧的可选择的时频平铺。

25. 发明授权

US07725324B2 Constrained filter encoding of polyphonic signals 有权
标题翻译：复音信号的约束滤波器编码
公开(公告)号：US07725324B2
公开(公告)日：2010-05-25
申请号：US11011764
申请日：2004-12-15
申请人： Stefan Bruhn , Ingemar Johansson , Anisse Taleb , Patrik Sandgren
发明人： Stefan Bruhn , Ingemar Johansson , Anisse Taleb , Patrik Sandgren
IPC分类号： G10L19/00 , G10L21/04 , G10L19/02 , H04R5/00
CPC分类号： G10L19/008
摘要： Signals of different channels are combined into one mono signal. A set of adaptive filters, preferably one for each channel, is derived in a respective filter adaptation unit. When an adaptive filter is applied to the mono signal it reconstructs the signal of the respective channel under a perceptual constraint. The perceptual constraint is a gain and/or shape constraint. The gain constraint allows the preservation of the relative energy between the channels while the shape constraint allows more stability by avoiding unnecessary filtering of spectral nulls. The transmitted parameters are the mono signal, in encoded form, and the parameters of the adaptive filters, preferably also encoded. The receiver reconstructs the signal of the different channels by applying the adaptive filters and possibly some additional post-processing.
摘要翻译：不同通道的信号被组合成一个单声道信号。在相应的滤波器适配单元中导出一组适用于每个信道的自适应滤波器。当自适应滤波器被应用于单声道信号时，它在感知约束下重构相应频道的信号。感知约束是增益和/或形状约束。增益约束允许保持通道之间的相对能量，而形状约束允许通过避免频谱零点的不必要的过滤来获得更多的稳定性。传输的参数是以编码形式的单声道信号，并且自适应滤波器的参数优选地也被编码。接收机通过应用自适应滤波器和可能的一些额外的后处理来重构不同信道的信号。

26. 发明申请

US20050160126A1 Constrained filter encoding of polyphonic signals 有权
标题翻译：复音信号的约束滤波器编码
公开(公告)号：US20050160126A1
公开(公告)日：2005-07-21
申请号：US11011764
申请日：2004-12-15
申请人： Stefan Bruhn , Ingemar Johansson , Anisse Taleb , Patrik Sandgren
发明人： Stefan Bruhn , Ingemar Johansson , Anisse Taleb , Patrik Sandgren
IPC分类号： G06F17/10
CPC分类号： G10L19/008
摘要： Signals of different channels (C1-CN) are combined into one mono signal (x). A set of adaptive filters, preferably one for each channel (C1-CN), is derived in a respective filter adaptation unit (30:1-30:N). When an adaptive filter is applied to the mono signal (x) it reconstructs the signal of the respective channel (C1-CN) under a perceptual constraint. The perceptual constraint is a gain and/or shape constraint. The gain constraint allows the preservation of the relative energy between the channels (C1-CN) while the shape constraint allows more stability by avoiding unnecessary filtering of spectral nulls. The transmitted parameters are the mono signal (x), in encoded form, and the parameters (p1-pN) of the adaptive filters, preferably also encoded. The receiver reconstructs the signal of the different channels by applying the adaptive filters and possibly some additional post-processing.
摘要翻译：不同信道（C 1 -C 3 N N）的信号被组合成一个单声道信号（x）。在各自的滤波器适配单元（30：1-30：N）中导出一组自适应滤波器，优选地每个信道一个（C 1 -C N N N）。当自适应滤波器被应用于单声道信号（x）时，它在感知约束下重构相应信道的信号（C 1 -C 1 -C N N）。感知约束是增益和/或形状约束。增益约束允许保持通道之间的相对能量（C 1 -C 3 N N），同时形状约束允许通过避免频谱零点的不必要的过滤而获得更多的稳定性。所传输的参数是编码形式的单声道信号（x），并且自适应滤波器的参数（p <1> N＆gt; N＆lt; N＆gt;）优选地也被编码。接收机通过应用自适应滤波器和可能的一些额外的后处理来重构不同信道的信号。

27. 发明授权

US09269372B2 Adaptive transition frequency between noise fill and bandwidth extension 有权
标题翻译：噪声填充与带宽扩展之间的自适应转换频率
公开(公告)号：US09269372B2
公开(公告)日：2016-02-23
申请号：US12674341
申请日：2008-08-26
申请人： Gustaf Ullberg , Anisse Taleb , Manuel Briand
发明人： Gustaf Ullberg , Anisse Taleb , Manuel Briand
IPC分类号： G10L19/02 , G10L19/005 , G10L19/028 , G10L21/038 , G10L19/035
CPC分类号： G10L19/028 , G10L19/0204 , G10L19/032 , G10L19/035 , G10L21/038
摘要： A method for spectrum recovery in spectral decoding of an audio signal, comprises obtaining (210) of an initial set of spectral coefficients representing the audio signal, and determining (212) a transition frequency. The transition frequency is adapted to a spectral content of the audio signal. Spectral holes in the initial set of spectral coefficients below the transition frequency are noise filled (214) and the initial set of spectral coefficients are bandwidth extended (216) above the transition frequency. Decoders and encoders being arranged for performing part of or the entire method are also illustrated.
摘要翻译：一种用于音频信号的频谱解码中的频谱恢复的方法，包括获得（210）表示所述音频信号的初始频谱系数集合，以及确定（212）转换频率。转换频率适应于音频信号的频谱内容。在转换频率之下的初始频谱系数集中的光谱孔被噪声填充（214），并且频谱系数的初始集合在过渡频率之上的带宽扩展（216）。还示出了用于执行部分或整个方法的解码器和编码器。

28. 发明授权

US08392202B2 Low-complexity spectral analysis/synthesis using selectable time resolution 有权
标题翻译：使用可选择的时间分辨率的低复杂度光谱分析/综合
公开(公告)号：US08392202B2
公开(公告)日：2013-03-05
申请号：US12675461
申请日：2008-08-25
申请人： Anisse Taleb
发明人： Anisse Taleb
IPC分类号： G10L21/00
CPC分类号： G10L19/02 , G10L19/022
摘要： The signal processing is based on the concept of using a time-domain aliased (12, TDA) frame as a basis for time segmentation (14) and spectral analysis (16), performing segmentation in time based on the time-domain aliased frame and performing spectral analysis based on the resulting time segments. The time resolution of the overall ?segmented? time-to-frequency transform can thus be changed by simply adapting the time segmentation to obtain a suitable number of time segments based on which spectral analysis is applied. The overall set of spectral coefficients, obtained for all the segments, provides a selectable time-frequency tiling of the original signal frame.
摘要翻译：信号处理基于使用时域混叠（12，TDA）帧作为时间分割（14）和频谱分析（16）的基础的概念，基于时域混叠帧在时间上执行分割，并且基于所得到的时间段进行光谱分析。因此，通过简单地调整时间分割以基于哪个频谱分析被应用来获得合适数量的时间段，可以改变整个“分段”时间 - 频率变换的时间分辨率。对于所有段获得的总体频谱系数集合提供了原始信号帧的可选择的时频平铺。

29. 发明授权

US08315238B2 Network processing node and method for manipulating packets 有权
标题翻译：网络处理节点和操作数据包的方法
公开(公告)号：US08315238B2
公开(公告)日：2012-11-20
申请号：US13195315
申请日：2011-08-01
申请人： Anisse Taleb , Stefan Bruhn , Moo Young Kim , Ingemar Johansson , Stefan Häkansson , Klas Fredrik Janis Jansson
发明人： Anisse Taleb , Stefan Bruhn , Moo Young Kim , Ingemar Johansson , Stefan Häkansson , Klas Fredrik Janis Jansson
IPC分类号： H04W4/00
CPC分类号： H04L1/0041 , H04L1/0009 , H04L1/0026 , H04L1/18 , H04L49/552 , H04L2001/0097
摘要： A network processing node (e.g., MGW, MRFP) and method are described herein that can: (1) receive packets on a first heterogeneous link (e.g., wireless link); (2) manipulate the received packets based on known characteristics about a second heterogeneous link (e.g., “Internet” link); and (3) send the manipulated packets on the second heterogeneous link (e.g., “Internet” link). For example, the network processing node can manipulate the received packets by adding redundancy, removing redundancy, frame aggregating (re-packetizing), recovering lost packets and/or re-transmitting packets.
摘要翻译：本文描述了可以：（1）在第一异构链路（例如，无线链路）上接收分组的网络处理节点（例如，MGW，MRFP）和方法; （2）基于关于第二异构链路（例如，因特网链路）的已知特性来操纵所接收的分组; 和（3）在第二异构链路（例如，因特网链路）上发送被操纵的分组。例如，网络处理节点可以通过添加冗余，去除冗余，帧聚合（重新分组），恢复丢失的分组和/或重新发送分组来操纵所接收的分组。

30. 发明授权

US08126152B2 Method and arrangement for a decoder for multi-channel surround sound 有权
标题翻译：用于多通道环绕声解码器的方法和装置
公开(公告)号：US08126152B2
公开(公告)日：2012-02-28
申请号：US12295172
申请日：2007-03-28
申请人： Anisse Taleb
发明人： Anisse Taleb
IPC分类号： H04R5/00
CPC分类号： H04S3/02 , G10L19/008 , H04S2420/03
摘要： The basic concept of the present invention is to extrapolate a partially known spatial covariance matrix of a multi-channel signal in the parameter domain. The extrapolated covariance matrix is used with the downcoded downmix signal in order to efficiently generate an estimate of a linear combination of the multi-channel signals.
摘要翻译：本发明的基本概念是推断参数域中的多信道信号的部分已知的空间协方差矩阵。外推协方差矩阵与降频缩减信号一起使用，以有效地产生多信道信号的线性组合的估计。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式