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1. 发明公开

EP3262723A1 MATING ASSURANCE SYSTEM AND METHOD 有权
标题翻译：保证系统和方法
公开(公告)号：EP3262723A1
公开(公告)日：2018-01-03
申请号：EP16705658.9
申请日：2016-02-04
申请人： TE Connectivity Corporation
发明人： MAALOUF, Khalil John , SPADE, Rodney K.
IPC分类号： H01R13/641 , H01R43/26
CPC分类号： H04R29/005 , G10L21/0224 , H01R13/639 , H01R13/641 , H01R43/26 , H04R1/06 , H04R3/005 , H04R2420/00 , H04R2430/20
摘要： A mating assurance system includes first and second microphones configured to be located in a vicinity of a mating zone for electrical connectors. The first microphone is located a first distance from the mating zone and the second microphone being located a second distance from the mating zone. The first and second microphones are configured to detect audible sound when the electrical connectors are mated. An output unit is connected to the first and second microphones and receives audio signals from the first and second microphones. The output unit processes the audio signals from the first microphone and from the second microphone for mating assurance.

2. 发明公开

EP3252765A1 NOISE SUPPRESSION IN A VOICE SIGNAL 有权
标题翻译：语音信号中的噪声抑制
公开(公告)号：EP3252765A1
公开(公告)日：2017-12-06
申请号：EP17173212.6
申请日：2017-05-29
申请人： Fujitsu Limited
发明人： Matsuo, Naoshi
IPC分类号： G10L21/0208 , H03G3/32 , H03G3/34 , G10L21/0216 , G10L21/0316 , G10L21/0224
CPC分类号： G10L21/0264 , G10L21/0208 , G10L21/0224 , G10L21/0316 , G10L25/06 , G10L25/21 , G10L2021/02082 , G10L2021/02087 , G10L2021/02165 , H03G3/32 , H04R3/005 , H04R3/04
摘要： A noise suppression device includes: an adaptive filter unit that suppresses, using an adaptive filter, a noise component contained in a voice signal generated from a voice captured by a voice input unit to generate a corrected voice signal; a noise generation detection unit that detects timing of generation of the noise component in the voice signal; and a period suppression unit that suppresses the corrected voice signal during a predetermined period of time after the timing of the generation of the noise component.
摘要翻译：一种噪声抑制装置，包括：自适应滤波器单元，其使用自适应滤波器来抑制包含在从由语音输入单元捕获的语音中产生的语音信号中的噪声成分，以产生经校正的语音信号; 噪声生成检测单元，其检测语音信号中的噪声成分的生成的定时; 以及周期抑制单元，其在产生噪声分量的定时之后的预定时间段期间抑制校正后的语音信号。

3. 发明授权

EP2828852B1 POST-PROCESSING GAINS FOR SIGNAL ENHANCEMENT 有权
标题翻译：后处理增益改善信号
公开(公告)号：EP2828852B1
公开(公告)日：2016-03-16
申请号：EP13714812.8
申请日：2013-03-21
申请人： Dolby Laboratories Licensing Corporation
发明人： SUN, Xuejing , DICKINS, Glenn N.
IPC分类号： G10L21/0316 , H03G3/32 , G10K11/16
CPC分类号： G10L21/0364 , G10K11/16 , G10L21/0224 , G10L21/0316 , G10L21/034 , G10L25/78 , H03G3/301 , H03G3/32
摘要： A method, an apparatus, and logic to post-process raw gains determined by input processing to generate post-processed gains, comprising using one or both of delta gain smoothing and decision-directed gain smoothing. The delta gain smoothing comprises applying a smoothing filter to the raw gain with a smoothing factor that depends on the gain delta: the absolute value of the difference between the raw gain for the current frame and the post-processed gain for a previous frame. The decision-directed gain smoothing comprises converting the raw gain to a signal-to-noise ratio, applying a smoothing filter with a smoothing factor to the signal-to-noise ratio to calculate a smoothed signal-to-noise ratio, and converting the smoothed signal-to-noise ratio to determine the second smoothed gain, with smoothing factor possibly dependent on the gain delta.

4. 发明公开

EP2779162A3 Removal of audio noise 有权
标题翻译： Entfernung vonAudiogeräuschen
公开(公告)号：EP2779162A3
公开(公告)日：2015-10-07
申请号：EP14159149.5
申请日：2014-03-12
申请人： Comcast Cable Communications, LLC
发明人： Des Jardins, George Thomas
IPC分类号： G10L21/0224 , G10L21/0208 , G10L19/018
CPC分类号： G10L21/0308 , G10L19/018 , G10L21/0208 , G10L21/0224 , G10L25/84
摘要： A system for removing noise from an audio signal is described. For example, noise caused by content playing in the background during a voice command or phone call may be removed from the audio signal representing the voice command or phone call. By removing noise, the signal to noise ratio of the audio signal may be improved.
摘要翻译：描述用于从音频信号中去除噪声的系统。例如，可以从表示语音命令或电话呼叫的音频信号中去除在语音命令或电话呼叫期间在后台播放的内容引起的噪声。通过消除噪声，可以提高音频信号的信噪比。

5. 发明公开

EP2894449A1 VOICE RECOGNITION METHOD, VOICE RECOGNITION DEVICE, AND ELECTRONIC DEVICE 审中-公开
标题翻译： SPRACHERKENNUNGSVERFAHREN，SPRACHERKENNUNGSVORRICHTUNG ELEKTRONISCHE VORRICHTUNG
公开(公告)号：EP2894449A1
公开(公告)日：2015-07-15
申请号：EP14812390.4
申请日：2014-08-01
申请人： Huawei Technologies Co., Ltd.
发明人： ZHOU, Junyang
IPC分类号： G01L15/00
CPC分类号： G10L15/20 , G10L21/02 , G10L21/0216 , G10L21/0224 , H04R3/00
摘要： The present invention discloses a voice recognition method, a voice recognition device, and an electronic device. In this method, first determining is performed by using a sample environment corresponding to a detection voice and a previous environment type, so as to output a corresponding voice correction instruction to a voice engine; then, a to-be-recognized voice is input to the voice engine and a noise type detection engine at the same time, and the voice engine corrects the to-be-recognized voice by using the voice correction instruction, so that quality of an original voice is not impaired by noise processing, and a corresponding initial recognition result is output; the noise type detection engine determines a current environment type by using the to-be-recognized voice and a voice training sample under a different environment; finally, confidence of the initial recognition result is adjusted by using the current environment type, so as to ensure that a recognition effect of a finally output voice recognition result can provide good user experience for a user under a current environment.
摘要翻译：本发明公开了一种语音识别方法，语音识别装置和电子装置。在该方法中，通过使用与检测语音和先前环境类型对应的样本环境来执行第一确定，以便将语音校正指令输出到语音引擎; 然后，将被识别的语音同时输入到语音引擎和噪声类型检测引擎，并且语音引擎通过使用语音校正指令来校正被识别的语音，使得质量原始声音不受噪声处理的影响，并输出相应的初始识别结果; 噪声型检测引擎通过在不同环境下使用被识别的语音和语音训练样本来确定当前的环境类型; 最后，通过使用当前环境类型来调整初始识别结果的置信度，以确保最终输出的语音识别结果的识别效果可以在当前环境下为用户提供良好的用户体验。

6. 发明公开

EP2761762A1 PREDICTION-BASED FM STEREO RADIO NOISE REDUCTION 有权
标题翻译：调频立体声收音机降噪ON预测的基础
公开(公告)号：EP2761762A1
公开(公告)日：2014-08-06
申请号：EP12772270.0
申请日：2012-10-01
申请人： Dolby International AB
发明人： PURNHAGEN, Heiko , SEHLSTROM, Leif , ENGDEGARD, Jonas
IPC分类号： H04B1/16 , G10L19/008
CPC分类号： H04B1/10 , G10L19/005 , G10L19/008 , G10L21/0224 , G10L21/0264 , H04B1/1676
摘要： The present document relates to audio signal processing, in particular to an apparatus and a corresponding method for improving the audio signal of an FM stereo radio receiver. In particular, the present document relates to a method and system for reducing the noise of a received FM stereo radio signal. An apparatus (2) configured to reduce noise of a received multi-channel FM radio signal is described, wherein the received multi-channel FM radio signal is representable as a received mid signal and a received side signal. The apparatus (2) comprises a parameter determination unit (77) configured to determine one or more parameters indicative of a correlation and/or decorrelation between the received mid signal and the received side signal; and a noise reduction unit (79) configured to generate a noise-reduced side signal from the received mid signal and not from the received side signal using the one or more parameters.

7. 发明公开

EP2622829A1 FINE/COARSE GAIN ADJUSTMENT 无效
标题翻译： FEINE / GROBEVERSTÄRKUNGSEINSTELLUNG
公开(公告)号：EP2622829A1
公开(公告)日：2013-08-07
申请号：EP11761455.2
申请日：2011-09-16
申请人： Bose Corporation
发明人： IYENGAR, Vasu
IPC分类号： H04M1/60
CPC分类号： H04M1/60 , G10L21/0224 , H03G3/32 , H04M1/6066
摘要： Methods and apparatuses for deriving a signal-to-noise ratio based at least in part on a measured level of a signal carrying far-end speech, and a measured level of a signal carrying ambient acoustic noise, determining a target gain adjustment based at least in part on the derived signal-to-noise ratio, including determining a coarse gain adjustment and a fine gain adjustment, the target gain adjustment corresponding to a combination of the coarse gain adjustment and the fine gain adjustment, applying the coarse gain adjustment to the signal carrying far-end speech using first gain adjustment circuitry to produce a first gain-adjusted signal, applying the fine gain adjustment to the signal carrying far-end speech using second gain adjustment circuitry to produce a second gain-adjusted signal, and providing a result of combining the first gain-adjusted signal and the second gain-adjusted signal to audio output from a wireless communications device.
摘要翻译：至少部分地基于承载远端语音的信号的测量电平以及承载环境声学噪声的信号的测量电平来导出信噪比的方法和装置，至少基于至少部分地基于导出的信噪比，包括确定粗调增益调整和精细增益调整，对应于粗增益调整和精细增益调整的组合的目标增益调整，将粗增益调整应用于使用第一增益调整电路携带远端语音的信号，以产生第一增益调整信号，使用第二增益调整电路对携带远端语音的信号应用精细增益调整，以产生第二增益调整信号，将第一增益调整信号和第二增益调整信号组合成从无线通信设备输出的音频的结果。

8. 发明公开

EP3438977A1 NOISE SUPPRESSION IN A VOICE SIGNAL 有权
公开(公告)号：EP3438977A1
公开(公告)日：2019-02-06
申请号：EP18194750.8
申请日：2017-05-29
申请人： FUJITSU LIMITED
发明人： Matsuo, Naoshi
IPC分类号： G10L21/0208 , H03G3/32 , H03G3/34 , G10L21/0216 , G10L21/0316 , G10L21/0224 , G10L25/06
CPC分类号： G10L21/0264 , G10L21/0208 , G10L21/0224 , G10L21/0316 , G10L25/06 , G10L25/21 , G10L2021/02082 , G10L2021/02087 , G10L2021/02165 , H03G3/32 , H04R3/005 , H04R3/04
摘要： A noise suppression device includes: an adaptive filter unit that suppresses, using an adaptive filter, a noise component contained in a voice signal generated from a voice captured by a voice input unit to generate a corrected voice signal; a noise generation detection unit that detects timing of generation of the noise component in the voice signal; and a period suppression unit that suppresses the corrected voice signal during a predetermined period of time after the timing of the generation of the noise component.

9. 发明公开

EP3354004A1 ACOUSTIC ECHO PATH CHANGE DETECTION APPARATUS AND METHOD 有权
公开(公告)号：EP3354004A1
公开(公告)日：2018-08-01
申请号：EP16782116.4
申请日：2016-09-22
申请人： Microsemi Semiconductor (U.S.) Inc.
发明人： ZARGAR, Tanmay , ONOCHIE, Francis Chukwuemeka
IPC分类号： H04M9/08
CPC分类号： H04B3/23 , G10L21/0224 , G10L2021/02082 , H04M3/002 , H04M9/082
摘要： An acoustic echo path change detection apparatus constituted of: a time domain path change detection functionality arranged to: detect a change in a near-end acoustic echo path responsive to a time domain analysis of a near-end signal and a signal output by an acoustic echo canceller; and output an indication of the detected change, a frequency domain path change detection functionality arranged to: detect a change in the near-end acoustic echo path responsive to a frequency domain analysis of a far-end signal and the signal output by the acoustic echo canceller; and output an indication of the detected change, and a combination path change detection functionality arranged to: determine a first function of the output indication of the time domain path change detection functionality and the output indication of the frequency domain path change detection functionality; and output the determined first function.

10. 发明公开

EP3329488A1 AN ACOUSTIC KEYSTROKE TRANSIENT CANCELER FOR COMMUNICATION TERMINALS USING A SEMI-BLIND ADAPTIVE FILTER MODEL 有权
公开(公告)号：EP3329488A1
公开(公告)日：2018-06-06
申请号：EP16790800.3
申请日：2016-10-18
申请人： Google LLC
发明人： BUCHNER, Herbert , GODSILL, Simon J. , SKOGLUND, Jan
IPC分类号： G10L21/0216 , G10L21/0232
CPC分类号： G10L19/26 , G10L21/0208 , G10L21/0216 , G10L21/0224 , G10L21/0232 , G10L21/028 , G10L2021/02161 , G10L2021/02165 , H04R2410/05
摘要： Provided are methods and systems for acoustic keystroke transient cancellation/suppression for user communication devices using a semi-blind adaptive filter model. The methods and systems are designed to overcome existing problems in transient noise suppression by taking into account some less-defective signal as side information on the transients and also accounting for acoustic signal propagation, including the reverberation effects, using dynamic models. The methods and systems take advantage of a synchronous reference microphone embedded in the keyboard of the user device, and utilize an adaptive filtering approach exploiting the knowledge of this keybed microphone signal.

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