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41. 发明授权

US09349381B2 Method and device for pulse encoding, method and device for pulse decoding 有权
标题翻译：用于脉冲编码的方法和装置，用于脉冲解码的方法和装置
公开(公告)号：US09349381B2
公开(公告)日：2016-05-24
申请号：US14252382
申请日：2014-04-14
申请人： Huawei Technologies Co., Ltd.
发明人： Fuwei Ma , Dejun Zhang , Minjie Xie , Qing Zhang
IPC分类号： G10L19/04 , H03M7/30 , H03M7/40 , G10L19/002
CPC分类号： G10L19/113 , G10L19/002 , G10L19/04 , G10L19/10 , G10L19/12 , G10L2019/0016 , H03M7/30 , H03M7/40 , H03M7/4068
摘要： The present invention discloses a method and a device for pulse encoding, and a method and a device for pulse decoding. The method for pulse encoding includes: calculating an index value of an input pulse; selecting an adjustment threshold value according to the number of pulses, and comparing the index value of the pulse with the adjustment threshold value; if the index value is smaller than the adjustment threshold value, adopting the first number of encoding bits to encode the index value, if the index value is not smaller than the adjustment threshold value, adopting the second number of encoding bits to encode the index value plus an offset value, where the first number is smaller than the second number, the first number and the second number are both positive integers, and the offset value is greater than or equal to the adjustment threshold value.
摘要翻译：本发明公开了一种用于脉冲编码的方法和装置，以及用于脉冲解码的方法和装置。脉冲编码方法包括：计算输入脉冲的指标值; 根据所述脉冲数选择调整阈值，并将所述脉冲的指标值与所述调整阈值进行比较; 如果索引值小于调整阈值，则采用第一数量的编码比特来对索引值进行编码，如果索引值不小于调整阈值，则采用第二数量的编码比特来对索引值进行编码加上偏移值，其中第一个数字小于第二个数字，第一个数字和第二个数字都是正整数，偏移量大于或等于调整阈值。

42. 发明申请

US20160118057A1 SELECTIVE BASS POST FILTER 有权
标题翻译：选择性过滤器
公开(公告)号：US20160118057A1
公开(公告)日：2016-04-28
申请号：US14947906
申请日：2015-11-20
申请人： DOLBY INTERNATIONAL AB
发明人： Barbara RESCH , Kristofer KJÖRLING , Lars VILLEMOES
IPC分类号： G10L19/26 , G10L19/20 , G10L19/125
CPC分类号： G10L19/26 , G10L19/02 , G10L19/0212 , G10L19/032 , G10L19/09 , G10L19/107 , G10L19/12 , G10L19/125 , G10L19/20 , G10L19/22 , G10L19/265 , G10L21/003 , G10L21/007 , G10L21/013
摘要： In some embodiments, a pitch filter for filtering a preliminary audio signal generated from an audio bitstream is disclosed. The pitch filter has an operating mode selected from one of either: (i) an active mode where the preliminary audio signal is filtered using filtering information to obtain a filtered audio signal, and (ii) an inactive mode where the pitch filter is disabled. The preliminary audio signal is generated in an audio encoder or audio decoder having a coding mode selected from at least two distinct coding modes, and the pitch filter is capable of being selectively operated in either the active mode or the inactive mode while operating in the coding mode based on control information.
摘要翻译：在一些实施例中，公开了用于滤波从音频比特流产生的初步音频信号的音调滤波器。音调滤波器具有从以下之一中选择的操作模式：（i）使用滤波信息对初步音频信号进行滤波以获得滤波的音频信号的有源模式，以及（ii）禁用音调滤波器的非活动模式。在具有从至少两个不同编码模式中选择的编码模式的音频编码器或音频解码器中产生初步音频信号，并且在编码中操作时，音调滤波器能够选择性地在活动模式或非活动模式下操作模式基于控制信息。

43. 发明申请

US20160104497A1 APPARATUS AND METHOD FOR GENERATING AN ADAPTIVE SPECTRAL SHAPE OF COMFORT NOISE 有权
标题翻译：用于产生舒适噪声的自适应光谱形状的装置和方法
公开(公告)号：US20160104497A1
公开(公告)日：2016-04-14
申请号：US14973724
申请日：2015-12-18
申请人： Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
发明人： Michael SCHNABEL , Goran MARKOVIC , Ralph SPERSCHNEIDER , Jeremie LECOMTE , Christian HELMRICH
IPC分类号： G10L19/012 , G10L19/005 , G10L19/07
CPC分类号： G10L19/005 , G10L19/002 , G10L19/012 , G10L19/0212 , G10L19/06 , G10L19/07 , G10L19/083 , G10L19/09 , G10L19/12 , G10L19/22 , G10L2019/0002 , G10L2019/0011 , G10L2019/0016
摘要： An apparatus for decoding an encoded audio signal to obtain a reconstructed audio signal is provided, having: a receiving interface for receiving one or more frames, a coefficient generator, and a signal reconstructor. The coefficient generator is configured to determine one or more first audio signal coefficients, and one or more noise coefficients. Moreover, the coefficient generator is configured to generate one or more second audio signal coefficients, depending on the one or more first audio signal coefficients and depending on the one or more noise coefficients. The audio signal reconstructor is configured to reconstruct a first portion of the reconstructed audio signal depending on the one or more first audio signal coefficients and the audio signal reconstructor is configured to reconstruct a second portion of the reconstructed audio signal depending on the one or more second audio signal coefficients, if the current frame is not received by the receiving interface or if the current frame being received by the receiving interface is corrupted.
摘要翻译：提供一种用于解码编码音频信号以获得重构音频信号的装置，具有：用于接收一个或多个帧的接收接口，系数发生器和信号重建器。系数发生器被配置为确定一个或多个第一音频信号系数和一个或多个噪声系数。此外，系数发生器被配置为根据一个或多个第一音频信号系数并依赖于一个或多个噪声系数来产生一个或多个第二音频信号系数。音频信号重构器被配置为根据一个或多个第一音频信号系数来重构重构音频信号的第一部分，并且音频信号重构器被配置为根据一个或多个第二音频信号重建重构音频信号的第二部分音频信号系数，如果当前帧未被接收接口接收，或者接收接口接收的当前帧是否损坏。

44. 发明申请

US20160104488A1 APPARATUS AND METHOD FOR IMPROVED SIGNAL FADE OUT FOR SWITCHED AUDIO CODING SYSTEMS DURING ERROR CONCEALMENT 有权
标题翻译：用于改变信号的设备和方法，用于在错误保密期间切换音频编码系统
公开(公告)号：US20160104488A1
公开(公告)日：2016-04-14
申请号：US14973726
申请日：2015-12-18
申请人： Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
发明人： Michael SCHNABEL , Goran MARKOVIC , Ralph SPERSCHNEIDER , Jeremie LECOMTE , Christian HELMRICH
IPC分类号： G10L19/005 , G10L19/002 , G10L19/083 , G10L19/012 , G10L19/09 , G10L19/12
CPC分类号： G10L19/005 , G10L19/002 , G10L19/012 , G10L19/0212 , G10L19/06 , G10L19/07 , G10L19/083 , G10L19/09 , G10L19/12 , G10L19/22 , G10L2019/0002 , G10L2019/0011 , G10L2019/0016
摘要： An apparatus for decoding an audio signal includes a receiving interface, wherein the receiving interface is configured to receive a first frame and a second frame. Moreover, the apparatus includes a noise level tracing unit for determining noise level information being represented in a tracing domain. Furthermore, the apparatus includes a first reconstruction unit for reconstructing a third audio signal portion of the audio signal depending on the noise level information and a second reconstruction unit for reconstructing a fourth audio signal portion depending on noise level information being represented in the second reconstruction domain.
摘要翻译：用于解码音频信号的装置包括接收接口，其中所述接收接口被配置为接收第一帧和第二帧。此外，该装置包括用于确定在跟踪域中表示的噪声电平信息的噪声电平跟踪单元。此外，该装置包括：第一重建单元，用于根据噪声电平信息重建音频信号的第三音频信号部分;以及第二重建单元，用于根据在第二重构域中表示的噪声电平信息重构第四音频信号部分。

45. 发明申请

US20160093312A1 AUDIO ENCODER AND DECODER WITH MULTIPLE CODING MODES 有权
标题翻译：具有多种编码模式的音频编码器和解码器
公开(公告)号：US20160093312A1
公开(公告)日：2016-03-31
申请号：US14936393
申请日：2015-11-09
申请人： DOLBY INTERNATIONAL AB
发明人： Barbara RESCH , Kristofer KJÖRLING , Lars VILLEMOES
IPC分类号： G10L19/26 , G10L19/12 , G10L19/20
CPC分类号： G10L19/26 , G10L19/02 , G10L19/0212 , G10L19/032 , G10L19/09 , G10L19/107 , G10L19/12 , G10L19/125 , G10L19/20 , G10L19/22 , G10L19/265 , G10L21/003 , G10L21/007 , G10L21/013
摘要： In one embodiment, an audio decoder for decoding an audio bitstream is disclosed. The decoder includes a first decoding module adapted to operate in a first coding mode and a second decoding module adapted to operate in a second coding mode, the second coding mode being different from the first coding mode. The decoder further includes a pitch filter in either the first coding mode or the second coding mode, the pitch filter adapted to filter a preliminary audio signal generated by the first decoding module or the second decoding module to obtain a filtered signal. The pitch filter is selectively enabled or disabled based on a value of a first parameter encoded in the audio bitstream, the first parameter being distinct from a second parameter encoded in the audio bitstream, the second parameter specifying a current coding mode of the audio decoder.
摘要翻译：在一个实施例中，公开了一种用于对音频比特流进行解码的音频解码器。解码器包括适于以第一编码模式操作的第一解码模块和适于以第二编码模式操作的第二解码模块，第二编码模式不同于第一编码模式。解码器还包括在第一编码模式或第二编码模式中的音调滤波器，音调滤波器适于滤除由第一解码模块或第二解码模块产生的初步音频信号以获得滤波信号。基于在音频比特流中编码的第一参数的值，音调滤波器被选择性地启用或禁用，第一参数不同于在音频比特流中编码的第二参数，第二参数指定音频解码器的当前编码模式。

46. 发明授权

US09224403B2 Selective bass post filter 有权
标题翻译：选择性低音后置滤镜
公开(公告)号：US09224403B2
公开(公告)日：2015-12-29
申请号：US13703875
申请日：2011-06-23
申请人： Barbara Resch , Kristofer Kjörling , Lars Villemoes
发明人： Barbara Resch , Kristofer Kjörling , Lars Villemoes
IPC分类号： G10L19/00 , G10L19/26 , G10L19/12 , G10L19/125 , G10L19/02 , G10L19/107 , G10L19/20
CPC分类号： G10L19/26 , G10L19/02 , G10L19/0212 , G10L19/032 , G10L19/09 , G10L19/107 , G10L19/12 , G10L19/125 , G10L19/20 , G10L19/22 , G10L19/265 , G10L21/003 , G10L21/007 , G10L21/013
摘要： In one aspect, the invention provides an audio encoding method characterized by a decision being made as to whether the device which will decode the resulting bit stream should apply post filtering including attenuation of interharmonic noise. Hence, the decision whether to use the post filter, which is encoded in the bit stream, is taken separately from the decision as to the most suitable coding mode. In another aspect, there is provided an audio decoding method with a decoding step followed by a post-filtering step, including interharmonic noise attenuation, and being characterized in a step of disabling the post filter in accordance with post filtering information encoded in the bit stream signal. Such a method is well suited for mixed-origin audio signals by virtue of its capability to deactivate the post filter in dependence of the post filtering information only, hence independently of factors such as the current coding mode.
摘要翻译：在一个方面，本发明提供了一种音频编码方法，其特征在于作出关于将对所得比特流进行解码的装置是否应该应用包括衰减间谐波噪声的后置滤波的决定。因此，决定是否使用在比特流中编码的后置滤波器，与最适合的编码模式的决定分开。在另一方面，提供了一种具有解码步骤之后是后置滤波步骤的音频解码方法，包括间谐波噪声衰减，并且其特征在于根据在比特流中编码的后置滤波信息来禁用后置滤波器信号。这种方法凭借其根据后置滤波信息去激活后置滤波器的能力，因此独立于诸如当前编码模式的因素，非常适用于混合源音频信号。

47. 发明授权

US09224399B2 Apparatus and method for concealing frame erasure and voice decoding apparatus and method using the same 有权
标题翻译：用于隐藏帧擦除和语音解码装置的方法和使用该方法的方法
公开(公告)号：US09224399B2
公开(公告)日：2015-12-29
申请号：US13916835
申请日：2013-06-13
申请人： Samsung Electronics Co., Ltd.
发明人： Hosang Sung , Kangeun Lee , Seungho Choi
IPC分类号： G10L11/06 , G10L19/005 , G10L19/06 , G10L19/083
CPC分类号： G10L19/0017 , G10L19/005 , G10L19/06 , G10L19/07 , G10L19/083 , G10L19/12 , G10L2019/0002 , G10L2019/0016
摘要： An apparatus and method for concealing frame erasure and a voice decoding apparatus and method using the same. The frame erasure concealment apparatus includes: a parameter extraction unit determining whether there is an erased frame in a voice packet, and extracting an excitement signal parameter and a line spectrum pair parameter of a previous good frame; and an erasure frame concealment unit, if there is an erased frame, restoring the excitement signal and line spectrum pair parameter of the erased frame by using a regression analysis from the excitement signal and line spectrum pair parameter of the previous good frame. According to the method and apparatus, by predicting and restoring the parameter of the erased frame through the regression analysis, the quality of the restored voice signal can be enhanced and the algorithm can be simplified.
摘要翻译：一种用于隐藏帧擦除的装置和方法，以及使用该帧擦除的语音解码装置和方法。帧擦除隐藏装置包括：参数提取单元，确定语音分组中是否存在被擦除的帧，以及提取先前好帧的兴奋信号参数和线谱对参数; 以及擦除帧隐藏单元，如果存在擦除帧，则通过使用来自先前好帧的兴奋信号和线谱对参数的回归分析来恢复被擦除帧的兴奋信号和线谱对参数。根据该方法和装置，通过回归分析预测和恢复被擦除的帧的参数，可以提高恢复的语音信号的质量，并且可以简化算法。

48. 发明授权

US09224089B2 Method and apparatus for adaptive bit-allocation in neural systems 有权
标题翻译：神经系统中自适应位分配的方法和装置
公开(公告)号：US09224089B2
公开(公告)日：2015-12-29
申请号：US13568782
申请日：2012-08-07
申请人： Somdeb Majumdar , Venkat Rangan , Jeffrey A. Levin
发明人： Somdeb Majumdar , Venkat Rangan , Jeffrey A. Levin
IPC分类号： G06N3/02 , G06N3/04 , G10L19/038 , G10L19/12
CPC分类号： G06N3/02 , G06N3/049 , G10L19/038 , G10L19/12
摘要： Certain aspects of the present disclosure support a technique for adaptive bit-allocation in neural systems. Bit-allocation for neural signals and parameters in a neural network described in the present disclosure may comprise for a plurality of synapse circuits in the neural simulator network, dynamically allocating a number of bits to the neural circuit signals based on at least one characteristic of one or more neural potential in the neural simulator network; and for the plurality of synapse circuits in the neural simulator network, dynamically allocating a number of bits to at least one neural processing parameter of the synapse circuit based on at least one condition of the neural simulator network.
摘要翻译：本公开的某些方面支持用于神经系统中的自适应位分配的技术。在本公开中描述的神经网络中的神经信号和参数的位分配可以包括用于神经模拟器网络中的多个突触电路，基于至少一个特征，将神经电路信号的多个位动态分配或更多神经电位在神经模拟器网络中; 并且对于神经模拟器网络中的多个突触电路，基于神经模拟器网络的至少一个条件，将突发电路的至少一个神经处理参数动态地分配多个位。

49. 发明授权

US09214161B2 Audio signal encoding method, audio signal decoding method, encoding device, decoding device, audio signal processing system, audio signal encoding program, and audio signal decoding program 有权
标题翻译：音频信号编码方法，音频信号解码方法，编码装置，解码装置，音频信号处理系统，音频信号编码程序和音频信号解码程序
公开(公告)号：US09214161B2
公开(公告)日：2015-12-15
申请号：US13786052
申请日：2013-03-05
申请人： NTT DOCOMO, Inc.
发明人： Kosuke Tsujino , Kei Kikuiri , Nobuhiko Naka
IPC分类号： G10L19/00 , G10L19/26 , G10L19/20 , G10L19/22 , G10L19/18 , G10L19/002 , G10L19/24 , G10L19/12
CPC分类号： G10L19/26 , G10L19/002 , G10L19/12 , G10L19/18 , G10L19/20 , G10L19/22 , G10L19/24
摘要： When a frame immediately preceding an encoding target frame to be encoded by a first encoding unit operating under a linear predictive coding scheme is encoded by a second encoding unit operating under a coding scheme different from the linear predictive coding scheme, the encoding target frame can be encoded under the linear predictive coding scheme by initializing the internal state of the first encoding unit. Therefore, encoding processing performed under a plurality of coding schemes including the linear predictive coding scheme and a coding scheme different from the linear predictive coding scheme can be realized.
摘要翻译：当在由线性预测编码方式运行的第一编码单元编码的编码目标帧之前的帧被由不同于线性预测编码方案的编码方式运行的第二编码单元编码时，编码目标帧可以是通过初始化第一编码单元的内部状态，在线性预测编码方案下进行编码。因此，可以实现在包括线性预测编码方案和不同于线性预测编码方案的编码方案的多种编码方案下执行的编码处理。

50. 发明申请

US20150332697A1 APPARATUS AND METHOD FOR GENERATING A FREQUENCY ENHANCED SIGNAL USING TEMPORAL SMOOTHING OF SUBBANDS 有权
标题翻译：使用时间平滑的子带生成频率增强信号的装置和方法
公开(公告)号：US20150332697A1
公开(公告)日：2015-11-19
申请号：US14812682
申请日：2015-07-29
申请人： Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
发明人： Sascha DISCH , Ralf GEIGER , Christian HELMRICH , Markus MULTRUS , Konstantin SCHMIDT
IPC分类号： G10L19/12 , G10L25/18 , G10L19/06 , G10L19/02
CPC分类号： G10L19/12 , G10L19/0204 , G10L19/032 , G10L19/06 , G10L21/038 , G10L21/0388 , G10L25/18 , G10L2019/0012 , G10L2019/0016
摘要： An apparatus for generating a frequency enhancement signal has: a signal generator for generating an enhancement signal from a core signal, the enhancement signal having an enhancement frequency range not included in the core signal, wherein a current time portion of the enhancement signal or the core signal has subband signals for a plurality of subbands; a controller for calculating the same smoothing information for the plurality of subband signals of the enhancement frequency range or the core signal, and wherein the signal generator is configured for smoothing the plurality of subband signals of the enhancement frequency range or the core signal using the same smoothing information.
摘要翻译：用于产生频率增强信号的装置具有：信号发生器，用于从核心信号产生增强信号，所述增强信号具有不包括在所述核心信号中的增强频率范围，其中所述增强信号或所述核心的当前时间部分信号具有用于多个子带的子带信号; 用于计算所述增强频率范围的多个子带信号或所述核心信号的相同平滑信息的控制器，并且其中所述信号发生器被配置为使用所述信号发生器对所述增强频率范围的多个子带信号或所述核心信号进行平滑平滑信息。

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