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1. 发明授权

US07146013B1 Microphone system 有权
标题翻译：麦克风系统
公开(公告)号：US07146013B1
公开(公告)日：2006-12-05
申请号：US09551273
申请日：2000-04-18
申请人： Nozomu Saito , Shingo Kiuchi , Koichi Nakata
发明人： Nozomu Saito , Shingo Kiuchi , Koichi Nakata
IPC分类号： G06F155/00
CPC分类号： H04R3/005
摘要： The microphone system of the invention executes an adaptive filter processing by using output signals from two microphones to output a speaker's voice signal with an improved SN ratio, in which the two microphones are laid out close to each other, and the angles formed by the orientations of the microphones with respect to the speaker's vocalizing direction are made different for each of the microphones. For example, the microphones are mounted on the sun visor of a vehicle, or on the ceiling above the front passenger seat or the driver's seat of the vehicle, with the orientations of the microphones differentiated. Further, the SN ratio of the output signal from one microphone is raised, and the SN ratio of the output signal from the other microphone is lowered. For example, one microphone is positioned right above a speaker's face, and the other microphone is spaced apart on the occipital side by about 1 to 5 cm from the position of the first microphone. Thus, the microphone system improves the SN ratio of the voice signal.
摘要翻译：本发明的麦克风系统通过使用来自两个麦克风的输出信号来执行自适应滤波处理，以输出具有改善的SN比的扬声器的语音信号，其中两个麦克风彼此靠近布置，并且由取向形成的角度相对于扬声器的发声方向的麦克风的麦克风对于每个麦克风而言是不同的。例如，麦克风被安装在车辆的遮阳板上，或者安装在前乘客座椅或车辆驾驶员座椅上的天花板上，麦克风的取向不同。此外，来自一个麦克风的输出信号的SN比升高，并且来自另一麦克风的输出信号的SN比降低。例如，一个麦克风位于扬声器的正上方，另一麦克风在枕头侧与第一麦克风的位置隔开约1至5厘米。因此，麦克风系统提高了语音信号的SN比。

2. 发明授权

US06847723B1 Voice input apparatus 有权
标题翻译：语音输入设备
公开(公告)号：US06847723B1
公开(公告)日：2005-01-25
申请号：US09438447
申请日：1999-11-12
申请人： Shingo Kiuchi , Kouichi Nakata , Nozomu Saito
发明人： Shingo Kiuchi , Kouichi Nakata , Nozomu Saito
IPC分类号： G10L15/28 , G01C21/36 , G10L15/20 , G10L15/22 , G10L21/02 , H04B15/00
CPC分类号： G01C21/3608 , G10L15/20 , G10L21/0208
摘要： The present invention provides a voice input apparatus which can extract an input voice without interrupting a generated background sound.When a talk switch 50 is pushed down, a LMS algorithm processing part 26 stops an update operation of a filter coefficient of an adaptive filter 24 and stores filter coefficient W1 at this moment in a portion for storing filter coefficients 30. A portion for calculating filter coefficients 44 calculates a filter coefficient W2 of a filter 42 to simulate a sound-transmittal line of an audio sound which is produced from a speaker 102 and is input into microphones 10, 12 by means of these stored filter coefficient W1 and various transmittal characteristics CS1, CS2 and the like. By extracting an output signal Y4 of the filter 42 from an output signal Y3 of a portion for eliminating surrounding noise 20 by means of a computing part 46, audio sound components included with an operating voice collected by the microphones 10, 12 are removed.
摘要翻译：本发明提供一种可以在不中断产生的背景声音的情况下提取输入声音的语音输入装置。当按下通话开关50时，LMS算法处理部分26停止自适应滤波器24的滤波器系数的更新操作，存储滤波器系数30的部分中的滤波器系数W1。用于计算滤波器系数44的部分计算滤波器42的滤波器系数W2，以模拟从扬声器102产生的音频声音的声音传输线并且通过这些存储的滤波器系数W1和各种传输特性CS1，CS2等被输入到麦克风10,12中。通过借助于计算部分46从用于消除周围噪声的部分的输出信号Y3提取滤波器42的输出信号Y4，除去由麦克风10,12收集的操作语音所包含的音频声音分量。

3. 发明授权

US08244533B2 Speech recognition performance improvement method and speech recognition device 有权
标题翻译：语音识别性能改进方法及语音识别装置
公开(公告)号：US08244533B2
公开(公告)日：2012-08-14
申请号：US10730767
申请日：2003-12-08
申请人： Shingo Kiuchi , Nozomu Saito
发明人： Shingo Kiuchi , Nozomu Saito
IPC分类号： G10L15/00 , G10L15/04
CPC分类号： G10L15/32 , G10L15/08
摘要： Speech recognition performance is improved without changing a speech recognition engine. A speech data generation section generates, from speech data for which speech recognition is to be performed, a plurality of pieces of speech data whose starting positions of the non-speech regions differ. A speech recognition engine performs speech recognition by using each of the pieces of speech data. A totaling/comparison section provides the most numerous recognized result from among a plurality of obtained recognized results.
摘要翻译：在不改变语音识别引擎的情况下，语音识别性能得到改善。语音数据生成部，从要进行语音识别的语音数据生成多个语音数据，其中非语音区域的起始位置不同。语音识别引擎通过使用每个语音数据来执行语音识别。合计/比较部分从多个获得的识别结果中提供最多的认可结果。

4. 发明申请

US20090243880A1 Alarm system for alerting driver to presence of objects 有权
标题翻译：报警系统，用于警告驾驶员存在物体
公开(公告)号：US20090243880A1
公开(公告)日：2009-10-01
申请号：US12288757
申请日：2008-10-23
申请人： Shingo Kiuchi
发明人： Shingo Kiuchi
IPC分类号： G08G1/16 , B60Q1/00 , G08B23/00 , G01S13/58
CPC分类号： G01B11/26 , B60W2050/143 , B60W2550/10 , G08G1/166
摘要： Alarm systems comprises an eye gaze direction detecting part, an obstacle detecting device and an alarm controlling part. The eye gaze direction detecting part determines a vehicle driver's field of view by analyzing facial images of a driver of the vehicle pictured by using a camera equipped in the vehicle. The obstacle detecting device detects the presence of an obstacle in the direction unobserved by the driver using a radar equipped in the vehicle, the direction of which radar is set up in the direction not attended by the driver on the basis of data detected by the eye gaze monitor. The alarm controlling part determines whether to make an alarm in case an obstacle is detected by the obstacle detecting device. The systems can detect the negligence of a vehicle driver in observing the front view targets and release an alarm to prevent the driver from any possible danger.
摘要翻译：报警系统包括眼睛注视方向检测部分，障碍物检测装置和报警控制部分。眼睛注视方向检测部分通过使用装备在车辆中的相机来分析所描绘的车辆的驾驶员的面部图像来确定车辆驾驶员的视野。障碍物检测装置使用车辆中配备的雷达，在驾驶员不使用的方向上检测障碍物的存在，基于眼睛检测到的数据，在驾驶员未参加的方向上设置雷达的方向凝视监视器。在障碍物检测装置检测出障碍物的情况下，报警控制部判定是否发出报警。系统可以检测车辆驾驶员在观察前视图目标时的疏忽，并释放警报以防止驾驶员发生任何可能的危险。

5. 发明授权

US08144002B2 Alarm system for alerting driver to presence of objects 有权
标题翻译：报警系统，用于警告驾驶员存在物体
公开(公告)号：US08144002B2
公开(公告)日：2012-03-27
申请号：US12288757
申请日：2008-10-23
申请人： Shingo Kiuchi
发明人： Shingo Kiuchi
IPC分类号： B60Q1/00 , B60R22/00 , G06K9/00
CPC分类号： G01B11/26 , B60W2050/143 , B60W2550/10 , G08G1/166
摘要： Alarm systems comprises an eye gaze direction detecting part, an obstacle detecting device and an alarm controlling part. The eye gaze direction detecting part determines a vehicle driver's field of view by analyzing facial images of a driver of the vehicle pictured by using a camera equipped in the vehicle. The obstacle detecting device detects the presence of an obstacle in the direction unobserved by the driver using a radar equipped in the vehicle, the direction of which radar is set up in the direction not attended by the driver on the basis of data detected by the eye gaze monitor. The alarm controlling part determines whether to make an alarm in case an obstacle is detected by the obstacle detecting device. The systems can detect the negligence of a vehicle driver in observing the front view targets and release an alarm to prevent the driver from any possible danger.
摘要翻译：报警系统包括眼睛注视方向检测部分，障碍物检测装置和报警控制部分。眼睛注视方向检测部分通过使用装备在车辆中的相机来分析所描绘的车辆的驾驶员的面部图像来确定车辆驾驶员的视野。障碍物检测装置使用车辆中配备的雷达，在驾驶员不使用的方向上检测障碍物的存在，基于眼睛检测到的数据，在驾驶员未参加的方向上设置雷达的方向凝视监视器。在障碍物检测装置检测出障碍物的情况下，报警控制部判定是否发出报警。系统可以检测车辆驾驶员在观察前视图目标时的疏忽，并释放警报以防止驾驶员发生任何可能的危险。

6. 发明授权

US07542577B2 Input sound processor 失效
标题翻译：输入声音处理器
公开(公告)号：US07542577B2
公开(公告)日：2009-06-02
申请号：US11070829
申请日：2005-03-01
申请人： Shingo Kiuchi
发明人： Shingo Kiuchi
IPC分类号： H04R3/00
CPC分类号： G10L25/00 , G10L21/0364
摘要： An input sound processor compares power at each frequency component of an input sound with a reference value, and sets multiplication points indicating frequency components at which the total power of the input sound is to be determined. A product-sum operation is performed at the multiplication points on the power at each frequency component and the square amplitude of each filter coefficient indicating the transfer characteristic from a loudspeaker to a microphone to estimate the total power of the input sound at the position of the microphone.
摘要翻译：输入声音处理器将输入声音的每个频率分量的功率与参考值进行比较，并且设置指示要确定输入声音的总功率的频率分量的乘法点。在每个频率分量上的功率乘法点和表示从扬声器到麦克风的传输特性的每个滤波器系数的平方振幅上执行积和运算，以估计在该位置处的输入声音的总功率麦克风。

7. 发明申请

US20050195992A1 Input sound processor 失效
标题翻译：输入声音处理器
公开(公告)号：US20050195992A1
公开(公告)日：2005-09-08
申请号：US11070829
申请日：2005-03-01
申请人： Shingo Kiuchi
发明人： Shingo Kiuchi
IPC分类号： G10L15/10 , G10L11/00 , G10L15/00 , G10L15/28 , G10L21/02 , H03G3/32 , H04R3/00
CPC分类号： G10L25/00 , G10L21/0364
摘要： An input sound processor compares power at each frequency component of an input sound with a reference value, and sets multiplication points indicating frequency components at which the total power of the input sound is to be determined. A product-sum operation is performed at the multiplication points on the power at each frequency component and the square amplitude of each filter coefficient indicating the transfer characteristic from a loudspeaker to a microphone to estimate the total power of the input sound at the position of the microphone.
摘要翻译：输入声音处理器将输入声音的每个频率分量的功率与参考值进行比较，并且设置指示要确定输入声音的总功率的频率分量的乘法点。在每个频率分量上的功率乘法点和表示从扬声器到麦克风的传输特性的每个滤波器系数的平方振幅上执行积和运算，以估计在该位置处的输入声音的总功率麦克风。

8. 发明申请

US20070019825A1 In-vehicle audio processing apparatus 审中-公开
标题翻译：车载音响处理装置
公开(公告)号：US20070019825A1
公开(公告)日：2007-01-25
申请号：US11477725
申请日：2006-06-28
申请人： Toru Marumoto , Shingo Kiuchi , Nozomu Saito
发明人： Toru Marumoto , Shingo Kiuchi , Nozomu Saito
IPC分类号： H04B15/00
CPC分类号： H04R5/02
摘要： On the basis of status information on a vehicle collected by a status information input interface from a navigation device, an ECU, and sensors, an S/N ratio estimating unit estimates, as an S/N ratio, the level of the ratio between the power of a component corresponding to audio-device output sound y(j) and that corresponding to noise sound n(j) contained in a microphone output signal. A transfer-function variation estimating unit estimates the level of a variation in a transfer function of an audio-device output audio signal transfer system. An adaptive characteristics controller controls a characteristic of a coefficient updating operation of a tap coefficient of an FIR filter performed by a coefficient updating unit of an adaptive filter, i.e., an adaptation (learning) characteristic of the adaptive filter, in response to the S/N ratio level and the level of the variation in the transfer function.
摘要翻译：基于来自导航装置，ECU和传感器的状态信息输入界面收集的车辆的状态信息，S / N比估计单元估计作为S / N比的比率的水平对应于音频设备输出声音y（j）的部件的功率和对应于麦克风输出信号中包含的噪声声音n（j）的功率。传递函数变化估计单元估计音频设备输出音频信号传送系统的传递函数的变化程度。自适应特性控制器控制由自适应滤波器的系数更新单元执行的FIR滤波器的抽头系数的系数更新操作的特性，即自适应滤波器的适应（学习）特性，响应于S / N比等级和传递函数的变化水平。

9. 发明授权

US06959277B2 Voice feature extraction device 有权
标题翻译：语音特征提取装置
公开(公告)号：US06959277B2
公开(公告)日：2005-10-25
申请号：US09891876
申请日：2001-06-26
申请人： Shingo Kiuchi , Toshiaki Asano , Nozomu Saito
发明人： Shingo Kiuchi , Toshiaki Asano , Nozomu Saito
IPC分类号： G10L15/00 , G10L15/02 , G10L15/20 , G10L15/28 , G10L21/02
CPC分类号： G10L15/20 , G10L15/02 , G10L21/0208
摘要： In a conventional device for extracting voice features accurately without being influenced by noises, such as a voice recognition device, usually an input voice signal is processed first by a noise reduction system having the tap length N, and the result is FFT-processed by L-points, and then the power spectrum vector is calculated; accordingly, a one time operation requires N multiplications and (N−1) summations. The voice feature extraction device according to the invention receives a voice signal including noises from a microphone, which is processed by a window function operation unit, and thereafter FFT-processed by an FFT operation unit by L-points. A power calculation unit calculates a power spectrum vector of the input voice signal. However, a noise reduction system determines in advance a filter coefficient of this system and processes the coefficient to calculate a noise reduction coefficient, and the power spectrum vector is processed by this noise reduction system. Thereby, the voice feature extraction device of the invention reduces the processing volume to 1/(4N−2) in comparison to the conventional device, lightens the processing load of the processing unit, and increases the processing speed.
摘要翻译：在诸如语音识别装置的语音识别装置的声音特征准确地提取语音特征的常规装置中，通常由具有抽头长度N的噪声降低系统首先处理输入语音信号，并且将结果由L 点，然后计算功率谱矢量; 因此，一次操作需要N次乘法和（N-1）个求和。根据本发明的语音特征提取装置接收由麦克风产生的噪声的声音信号，由麦克风进行处理，由窗函数运算单元进行处理，然后由FFT运算单元用L点进行FFT处理。功率计算单元计算输入语音信号的功率谱矢量。然而，噪声降低系统预先确定该系统的滤波器系数并处理该系数以计算降噪系数，并且由该降噪系统处理功率谱矢量。因此，本发明的语音特征提取装置与常规装置相比将处理量减少到1 /（4N-2），减轻了处理单元的处理负荷，并且提高了处理速度。

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