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1. 发明授权

US5572623A Method of speech detection 失效
标题翻译：语音检测方法
公开(公告)号：US5572623A
公开(公告)日：1996-11-05
申请号：US139740
申请日：1993-10-21
申请人： Dominique Pastor
发明人： Dominique Pastor
IPC分类号： G10L11/00 , G10L11/02 , G10L11/06 , G10L15/04 , G10L15/20 , G10L21/02 , G10L5/06
CPC分类号： G10L25/87 , G10L2025/932 , G10L2025/937 , G10L21/0216 , G10L25/27
摘要： A method for detecting the start and end of speech from a noisy signal including the steps of:detecting a voiced frame;searching for noise frames preceding this voiced frame;constructing an autoregressive model of the noise and a mean noise spectrum;bleaching the flames preceding the voicing,searching for the actual start of speech in the bleached frames;removing the noise from the voiced frames and parameterizing them; andsearching for the actual end of speech.
摘要翻译：一种用于从噪声信号中检测语音的开始和结束的方法，包括以下步骤：检测有声帧; 搜索该有声帧之前的噪声帧; 构建噪声的自回归模型和平均噪声谱; 漂白声音之前的火焰，在漂白的帧中搜索实际的开始语音; 从浊音帧中消除噪音并对其进行参数化; 并寻找实际的结尾。

2. 发明授权

US6128594A Process of voice recognition in a harsh environment, and device for implementation 失效
标题翻译：在恶劣环境下进行语音识别，实现设备
公开(公告)号：US6128594A
公开(公告)日：2000-10-03
申请号：US913849
申请日：1997-09-26
申请人： Christian Gulli , Dominique Pastor , Gerard Reynaud
发明人： Christian Gulli , Dominique Pastor , Gerard Reynaud
IPC分类号： G10L15/28 , G10L15/18 , G10L15/20 , G10L15/06 , G10L15/22
CPC分类号： G10L15/20
摘要： A process for voice recognition in a harsh environment such as the cockpit of a military aircraft. An acquisition device is connected to an acoustico-phonetic decoding device which is then connected to a recognition supervisor. The acquisition device is also connected to a voice recognition device which is also connected to the recognition supervisor. The voice recognition device is also connected to a dictionary and to a syntax describing device. The syntax describing device is connected to a dialogue model as well as the recognition supervisor.
摘要翻译： PCT No.PCT / FR97 / 00147 Sec。 371日期：1997年9月26日 102（e）1997年9月26日PCT PCT 1997年1月24日PCT公布。公开号WO97 / 27577 日期1997年7月31日在诸如军用飞机驾驶舱等恶劣环境中的语音识别过程。获取装置连接到声学语音解码装置，然后连接到识别主管。采集装置还连接到也连接到识别主管的语音识别装置。语音识别装置也连接到字典和语法描述装置。语法描述设备连接到对话模型以及识别主管。

3. 发明授权

US5511009A Energy-based process for the detection of signals drowned in noise 失效
标题翻译：用于检测信号的基于能量的过程被淹没在噪声中
公开(公告)号：US5511009A
公开(公告)日：1996-04-23
申请号：US224517
申请日：1994-04-07
申请人： Dominique Pastor
发明人： Dominique Pastor
IPC分类号： G01R29/00 , G10L11/02 , H03H21/00 , H04B1/10 , H04B15/00
CPC分类号： G10L25/78
摘要： The energy-based process according to the invention for the detection of useful signals drowned in noise consists of starting from a frame of samples of a noisy signal grouped in successive frames, making a pre-classification by comparing the energies of successive samples of each frame with a determined optimum threshold and sorting samples which have a high probability of belonging to a "noise only" class into this class, and then for each of these samples detecting those that have a sufficiently high energy so that they have a high probability of belonging to a "noise+useful signal" class, this second class being defined using the first class as a reference.
摘要翻译：根据本发明的用于检测被淹没在噪声中的有用信号的基于能量的过程包括从在连续帧中分组的噪声信号的采样帧开始，通过比较每帧的连续样本的能量进行预分类具有确定的最佳阈值并将具有高概率归属于“仅噪声”类的样本排序到该类中，然后对于这些样本中的每一个检测那些具有足够高能量的样本，使得它们具有高的归属概率到“噪音+有用信号”类，这个第二类是使用第一类作为参考定义的。

4. 发明授权

US06445801B1 Method of frequency filtering applied to noise suppression in signals implementing a wiener filter 失效
标题翻译：用于实现维纳滤波器的信号中的噪声抑制的频率滤波方法
公开(公告)号：US06445801B1
公开(公告)日：2002-09-03
申请号：US09196138
申请日：1998-11-20
申请人： Dominique Pastor , Gérard Reynaud , Pierre-Albert Breton
发明人： Dominique Pastor , Gérard Reynaud , Pierre-Albert Breton
IPC分类号： H04B1500
CPC分类号： G10L21/0208
摘要： The disclosed method uses the Wiener frequency filtering to suppress noise in noisy sound signals (u(t)). This method includes a preliminary step in which the sound signals (u(t)) to be noise-suppressed are digitized by sampling and subdivided into frames. The method then includes a first series of steps including the creation of a noise model on N frames, the estimating of the spectral density of the noise and of the energy of the noise model and the computing of a coefficient that reflects the statistical dispersion of the noise. It also includes a second series of steps including the computation of the spectral density of the signals to be noise-suppressed fore each frame. The coefficients of the Wiener filter are modified for each successively processed frame, by the parameters determined at the end of the two series of steps, so as to introduce an energy compensation and an adaptive overestimation of the noise.
摘要翻译：所公开的方法使用维纳频率滤波来抑制噪声信号（u（t））中的噪声。该方法包括一个预先步骤，其中要噪声抑制的声音信号（u（t））通过采样被数字化并被细分成帧。该方法然后包括第一系列步骤，包括在N帧上创建噪声模型，估计噪声的频谱密度和噪声模型的能量，以及反映系统的统计色散的系数的计算噪声。它还包括第二系列步骤，包括在每帧之前计算待噪声抑制的信号的频谱密度。通过在两个步骤结束时确定的参数，为每个连续处理的帧修改维纳滤波器的系数，以便引入能量补偿和噪声的自适应过高估计。

5. 发明授权

US06438513B1 Process for searching for a noise model in noisy audio signals 有权
标题翻译：用于在噪声音频信号中搜索噪声模型的过程
公开(公告)号：US06438513B1
公开(公告)日：2002-08-20
申请号：US09446886
申请日：1999-12-30
申请人： Dominique Pastor , Gérard Reynaud
发明人： Dominique Pastor , Gérard Reynaud
IPC分类号： G06F316
CPC分类号： G10L21/0208 , G10L2021/02168
摘要： A process for the denoising of audio signals picked up in a noisy environment, for example in the cockpit of an aircraft or of another vehicle, and more precisely to the searching for a noise model in the audio signals. Input signals are digitized, and these signals are processed on the basis of a noise model, in principle with a view to eliminate as far as possible the noise corresponding to the model. The input signals are chopped into successive frames of P samples each, and a repetitive search for a noise model is performed continuously in the input signals themselves, by searching for N successive frames (N lying between a minimum N1 and a maximum N2) having the expected characteristics of a noise, by storing N×P corresponding samples so as to construct a noise model useful in the denoising processing of the input signals and by iteratively repeating the search so as to find a new noise model and to store the new noise model as a replacement for the previously stored noise mode or to retain the previously stored noise model according to the respective characteristics of the two models. The model is obtained by finding N frames whose energies are close to one another (ratio of energies lying between two values S and 1/S).
摘要翻译：用于在噪声环境中拾取的音频信号去噪的过程，例如在飞机或另一车辆的驾驶舱中，更准确地说是在音频信号中搜索噪声模型。输入信号被数字化，并且这些信号原则上是基于噪声模型来处理的，以便尽可能地消除对应于模型的噪声。将输入信号切成连续的P个采样帧，对输入信号本身连续执行噪声模型的重复搜索，通过搜索N个连续帧（N位于最小N1和最大N2之间），具有预期的噪声特性，通过存储N×P个对应样本，以便构建用于输入信号的去噪处理中有用的噪声模型，并且通过迭代重复搜索，以便找到新的噪声模型并将新的噪声模型存储为替换以前存储的噪声模式或者根据两个模型的相应特征保留先前存储的噪声模型。该模型通过找到能量彼此接近的N个帧获得（在两个值S和1 / S之间的能量比）。

6. 发明授权

US5337251A Method of detecting a useful signal affected by noise 失效
标题翻译：检测受噪声影响的有用信号的方法
公开(公告)号：US5337251A
公开(公告)日：1994-08-09
申请号：US972445
申请日：1993-02-04
申请人： Dominique Pastor
发明人： Dominique Pastor
IPC分类号： G10L25/78 , G10L3/00
CPC分类号： G10L25/78
摘要： In order to detect a useful signal affected by noise, a measurement is taken of the expected S/N ratio of this signal over a time slice, a measurement of the estimated white noise alone is taken over another time slice without useful signal, the mean energy of the noise and of the noise-affected signal is calculated, in each of their time slices, the theoretical detection threshold is calculated, the ratio of these two energies is calculated, and the ratio is compared with the calculated threshold, this threshold being greater than 1 (ideal threshold).
摘要翻译： PCT No.PCT / FR92 / 00504 Sec。 371日期：1993年2月4日 102（e）日期1993年2月4日PCT提交1992年6月5日PCT公布。第WO92 / 22889号公报日期为1992年12月23日。为了检测受噪声影响的有用信号，测量该信号在时间片上的预期S / N比，仅估计白噪声的测量在另一时间在没有有用信号的情况下，计算噪声和噪声影响信号的平均能量，在其每个时间片中，计算理论检测阈值，计算这两个能量的比例，并将该比率与计算的阈值，该阈值大于1（理想阈值）。

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