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1. 发明申请

WO2014065342A1 METHOD FOR TRANSFORMING INPUT SIGNAL 审中-公开
标题翻译：变换输入信号的方法
公开(公告)号：WO2014065342A1
公开(公告)日：2014-05-01
申请号：PCT/JP2013/078747
申请日：2013-10-17
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： HERSHEY, John, R. , FEVOTTE, Cedric , LE ROUX, Jonathan
IPC分类号： G10L21/0232 , G10L21/0216
CPC分类号： G10L21/0232 , G10L2021/02163
摘要： An input signal, in the form of a sequence of feature vectors, is transformed to an output signal by first storing parameters of a model of the input signal in a memory. Using the vectors and the parameters, a sequence of vectors of hidden variables is inferred. There is at least one vector h n of hidden variables h i,n for each feature vector x n , and each hidden variable is nonnegative. The output signal is generated using the feature vectors, the vectors of hidden variables, and the parameters. Each feature vector x n is dependent on at least one of the hidden variables h i,n for the same n . The hidden variables are related according to formula (1), where j and l are summation indices. The parameters include non-negative weights c i,j,l , and ε l,n are independent non-negative random variables.
摘要翻译：通过首先将输入信号的模型的参数存储在存储器中，以特征向量序列的形式的输入信号被变换为输出信号。使用向量和参数，推断出隐藏变量的向量序列。对于每个特征向量x n，存在隐藏变量h i，n的至少一个向量h n，并且每个隐藏变量是非负的。使用特征向量，隐藏变量的向量和参数生成输出信号。每个特征向量x n取决于相同n的隐藏变量h i，n中的至少一个。隐含变量根据公式（1）相关，其中j和l是求和指数。参数包括非负权重c i，j，l和＆egr; l，n是独立的非负随机变量。

2. 发明申请

WO2015119174A1 STATISTICAL VOICE DIALOG SYSTEM AND METHOD FOR PROCESSING A VOICE COMMAND 审中-公开
标题翻译：统计语音对话系统和处理语音命令的方法
公开(公告)号：WO2015119174A1
公开(公告)日：2015-08-13
申请号：PCT/JP2015/053164
申请日：2015-01-29
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： WATANABE, Shinji , HERSHEY, John, R.
IPC分类号： G10L15/18 , G10L15/22 , G10L15/08
CPC分类号： G10L15/142 , G10L15/083 , G10L15/1822 , G10L15/22
摘要： A method for processing a voice command using a statistical dialog model determines a belief state as a probability distribution over states organized in a hierarchy with a parent-child relationship of nodes representing the states. The belief state includes the hierarchy of state variables defining probabilities of each state to correspond to the voice command and a probability of a state of a child node in the hierarchy is conditioned on a probability of a state of a corresponding parent node. A system action is selected based on the belief state.
摘要翻译：使用统计对话模型处理语音命令的方法将置信状态确定为在具有表示状态的节点的父子关系的层次结构中组织的状态的概率分布。置信状态包括状态变量的层级，其状态变量定义与语音命令相对应的每个状态的概率，并且层次结构中的子节点的状态的概率基于相应父节点的状态的概率。基于置信状态选择系统动作。

3. 发明申请

WO2019202886A1 AUDIO SIGNAL PROCESSING SYSTEM AND METHOD FOR TRANSFORMING INPUT AUDIO SIGNALS 审中-公开
公开(公告)号：WO2019202886A1
公开(公告)日：2019-10-24
申请号：PCT/JP2019/010433
申请日：2019-03-07
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： LE ROUX, Jonathan , HERSHEY, John, R. , WANG, Zhongqiu , WICHERN, Gordon, P.
IPC分类号： G10L21/0272 , G10L25/30
摘要： Systems and methods for an audio signal processing system for transforming an input audio signal. A processor implements steps of a module by inputting an input audio signal into a spectrogram estimator to extract an audio feature sequence, and process the audio feature sequence to output a set of estimated spectrograms. Processing the set of estimated spectrograms and the audio feature sequence using a spectrogram refinement module, to output a set of refined spectrograms. Wherein the processing of the spectrogram refinement module is based on an iterative reconstruction algorithm. Processing the set of refined spectrograms for the one or more target audio signals using a signal refinement module, to obtain the target audio signal estimates. An output interface to output the optimized target audio signal estimates. Wherein the module is optimized by minimizing an error using an optimizer stored in the memory.

4. 发明申请

WO2018168509A1 SPEECH RECOGNITION SYSTEM 审中-公开
公开(公告)号：WO2018168509A1
公开(公告)日：2018-09-20
申请号：PCT/JP2018/007914
申请日：2018-02-23
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： WATANABE, Shinji , OCHIAI, Tsubasa , HORI, Takaaki , HERSHEY, John, R.
IPC分类号： G10L21/0216 , G10L15/16 , G10L15/20
摘要： A speech recognition system includes a plurality of microphones to receive acoustic signals including speech signals, an input interface to generate multichannel inputs from the acoustic signals, one or more storages to store a multichannel speech recognition network, wherein the multichannel speech recognition network comprises mask estimation networks to generate time-frequency masks from the multichannel inputs, a beamformer network trained to select a reference channel input from the multichannel inputs using the time-frequency masks and generate an enhanced speech dataset based on the reference channel input and an encoder-decoder network trained to transform the enhanced speech dataset into a text. The system further includes one or more processors, using the multichannel speech recognition network in association with the one or more storages, to generate the text from the multichannel inputs, and an output interface to render the text.

5. 发明申请

WO2015182379A1 METHOD FOR ESTIMATING SOURCE SIGNALS FROM MIXTURE OF SOURCE SIGNALS 审中-公开
标题翻译：从源信号混合估计源信号的方法
公开(公告)号：WO2015182379A1
公开(公告)日：2015-12-03
申请号：PCT/JP2015/063700
申请日：2015-05-01
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： LE ROUX, Jonathan , HERSHEY, John, R. , WENINGER, Felix , WATANABE, Shinji
IPC分类号： G10L21/0272 , G10L21/0232
CPC分类号： G10L15/063 , G10L15/20 , G10L21/0232 , G10L21/0272
摘要： A method estimates source signals from a mixture of source signals by first training an analysis model and a reconstruction model using training data. The analysis model is applied to the mixture of source signals to obtain an analysis representation of the mixture of source signals, and the reconstruction model is applied to the analysis representation to obtain an estimate of the source signals, wherein the analysis model utilizes an analysis linear basis representation, and the reconstruction model utilizes a reconstruction linear basis representation.
摘要翻译：一种方法通过首先使用训练数据训练分析模型和重建模型来估计源信号混合的源信号。将分析模型应用于源信号混合以获得源信号混合的分析表示，并将重建模型应用于分析表示，以获得源信号的估计，其中分析模型利用分析线性基础表征，重建模型利用重建线性基础表示。

6. 发明申请

WO2015045931A1 METHOD FOR ADAPTING USER INTERFACE OF VEHICLE NAVIGATION SYSTEM IN VEHICLE 审中-公开
标题翻译：车辆导航系统用户界面的适应方法
公开(公告)号：WO2015045931A1
公开(公告)日：2015-04-02
申请号：PCT/JP2014/074335
申请日：2014-09-09
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： NIKOVSKI, Daniel, N. , HERSHEY, John, R. , HARSHAM, Bret , LE ROUX, Jonathan
IPC分类号： G01C21/36 , G06K9/62
CPC分类号： G01C21/36 , G01C21/3617 , G06K9/6277
摘要： A method adapts a user interface of a vehicle navigation system. Based on an input vector representing a current state related to the vehicle, probabilities of actions are predicted to achieve a next state using a predictive model representing previous states. Then, a subset of the available user actions with highest probabilities are displayed in the vehicle.
摘要翻译：一种适应车辆导航系统的用户界面的方法。基于表示与车辆相关的当前状态的输入向量，预测动作概率，使用表示先前状态的预测模型来实现下一状态。然后，在车辆中显示具有最高概率的可用用户动作的子集。

7. 发明申请

WO2014181849A1 METHOD FOR CONVERTING SOURCE SPEECH TO TARGET SPEECH 审中-公开
标题翻译：将源语音转换为目标语音的方法
公开(公告)号：WO2014181849A1
公开(公告)日：2014-11-13
申请号：PCT/JP2014/062416
申请日：2014-04-30
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： WATANABE, Shinji , HERSHEY, John, R.
IPC分类号： G10L21/0208 , G10L15/07
CPC分类号： G10L19/0212 , G10L15/07 , G10L21/0208
摘要： A method converts source speech to target speech by first mapping the source speech to sparse weights using compressive sensing technique, and the transforming, using transformation parameters, the sparse weights to the target speech.
摘要翻译：通过使用压缩感测技术首先将源语音映射到稀疏权重，并且使用变换参数将目标语音的稀疏权重变换为目标语音的方法，将源语音转换为目标语音。

8. 发明申请

WO2013111476A1 METHOD FOR ENHANCING SPEECH IN MIXED SIGNAL 审中-公开
标题翻译：用于增强混合信号中的语音的方法
公开(公告)号：WO2013111476A1
公开(公告)日：2013-08-01
申请号：PCT/JP2012/082598
申请日：2012-12-11
申请人： MITSUBISHI ELECTRIC CORPORATION , HERSHEY, John, R. , LE ROUX, Jonathan
发明人： HERSHEY, John, R. , LE ROUX, Jonathan
IPC分类号： G10L21/0232 , G10L21/02
CPC分类号： G10L21/0216 , G10L21/0232
摘要： Enhanced speech is produced from a mixed signal including noise and the speech. The noise in the mixed signal is estimated using a vector-Taylor series. The estimated noise is in terms of a minimum mean-squared error. Then, the noise is subtracted from the mixed signal to obtain the enhanced speech.
摘要翻译：增强语音由包括噪声和语音在内的混合信号产生。使用向量 - 泰勒级数来估计混合信号中的噪声。估计的噪声是最小均方误差。然后，从混合信号中减去噪声以获得增强的语音。

9. 发明公开

EP3782153A1 AUDIO SIGNAL PROCESSING SYSTEM AND METHOD FOR TRANSFORMING INPUT AUDIO SIGNALS 审中-公开
公开(公告)号：EP3782153A1
公开(公告)日：2021-02-24
申请号：EP19716587.1
申请日：2019-03-07
申请人： Mitsubishi Electric Corporation
发明人： LE ROUX, Jonathan , HERSHEY, John, R. , WANG, Zhongqiu , WICHERN, Gordon, P.
IPC分类号： G10L21/0272 , G10L25/30

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