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    • 1. 发明专利
    • Method and device for calculating wave source position
    • 用于计算波源位置的方法和装置
    • JP2011179888A
    • 2011-09-15
    • JP2010042627
    • 2010-02-26
    • Nissan Motor Co LtdUniv Of Tokyo国立大学法人 東京大学日産自動車株式会社
    • KAMINUMA MITSUNOBUONO JUNKIANDO SHIGERU
    • G01S3/86
    • PROBLEM TO BE SOLVED: To provide a method of calculating a wave source position, capable of enhancing calculation accuracy on a wave source position, by removing the effect of disturbance.
      SOLUTION: In the method of calculating the wave source position, a wave signal emitted by a wave source is detected at an observation point to calculate the position of the wave source. The method includes: a step of converting the wave signal into a discrete signal of a temporal frequency; a positional estimate calculation step of calculating a positional estimate that denotes the position of the wave source for each of temporal frequencies by using the discrete signal by an expression including at least one parameter among an amplitude component of the wave signal, a differential component of the amplitude of the wave signal, and a spatial grade of the wave signal; a masking function setting step of setting a masking function that limits the band of a temporal frequency according to the value of an evaluation function by applying the positional estimate to the evaluation function denoted by using the expression; a masking step of limiting the band of a temporal frequency by the masking function; and a wave source position calculation step of calculating the position of the wave source from the positional estimate.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:通过消除干扰的影响,提供一种能够提高波源位置的计算精度的波源位置的计算方法。 解决方案:在计算波源位置的方法中,在观察点检测由波源发出的波信号,以计算波源的位置。 该方法包括:将波形信号转换成时间频率的离散信号的步骤; 位置估计计算步骤,通过使用离散信号来计算表示每个时间频率的波源的位置的位置估计,该表达包括波信号的幅度分量中的至少一个参数, 波信号的幅度和波信号的空间等级; 屏蔽功能设置步骤,通过将位置估计应用于使用表达式表示的评估函数来设置根据评估函数的值来限制时间频率的频带的屏蔽功能; 掩蔽步骤,通过掩蔽函数来限制时间频率的频带; 以及波源位置计算步骤,从所述位置估计计算所述波源的位置。 版权所有(C)2011,JPO&INPIT
    • 4. 发明专利
    • Apparatus and method for providing sound information
    • 提供声音信息的装置和方法
    • JP2010272911A
    • 2010-12-02
    • JP2009120547
    • 2009-05-19
    • Nissan Motor Co Ltd日産自動車株式会社
    • KAMINUMA MITSUNOBU
    • H04S5/02B60R21/00H04R1/40H04R3/00
    • PROBLEM TO BE SOLVED: To provide an external sound of a mobile object 1000 while maintaining positional relation with a crew.
      SOLUTION: A sound information providing apparatus includes: a sound collection device 200 having front microphones 201, 202 arranged in the front of the mobile object 1000 in an advancing direction and rear microphones 211, 212 arranged on the rear of the mobile object 1000 in the advancing direction: a first sound output signal generation function 102 for generating a first sound output signal controlled so that a sound is heard from a preset virtual sound source based on a first sound signal corresponding to sounds collected by the front microphones 201, 202; a sound image generation function 103 for generating a sound image forming signal locating a sound image on a predetermined control point from the first sound output signal and/or a second sound signal corresponding to sounds collected by the rear microphones 211, 212; and an output control function 104 for outputting a sound to an acoustic device 400 mounted on the mobile object 1000 based on the sound image forming signal.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供移动对象1000的外部声音,同时保持与船员的位置关系。 解决方案:声音信息提供装置包括:声音采集装置200,其具有布置在移动对象1000的行进方向前方的前麦克风201,202,以及布置在移动对象的后方的后麦克风211,212 1000:第一声音输出信号生成功能102,用于产生被控制的第一声音输出信号,以便基于与由前麦克风201收集的声音对应的第一声音信号从预设的虚拟声源听到声音, 202; 声音图像生成功能103,用于产生从第一声音输出信号和/或对应于由后麦克风211,212收集的声音的第二声音信号定位预定控制点上的声像的声像成像信号; 以及输出控制功能104,用于基于声像形成信号将声音输出到安装在移动体1000上的声学装置400。 版权所有(C)2011,JPO&INPIT
    • 6. 发明专利
    • Acoustic sense monitoring equipment for vehicle and method
    • 用于车辆和方法的声学检测设备
    • JP2008207793A
    • 2008-09-11
    • JP2008020416
    • 2008-01-31
    • Nissan Motor Co Ltd日産自動車株式会社
    • KAMINUMA MITSUNOBU
    • B60R11/02H04R1/08H04R3/00H04R5/027H04S1/00
    • PROBLEM TO BE SOLVED: To provide inexpensive equipment to make a vehicle occupant hear sounds of a plurality of objects at the periphery of a vehicle with a window of the vehicle opened as it is while preventing the generation of unexpected caution rolling guidance to the vehicle occupant. SOLUTION: A plurality of microphones to collect the sounds at the periphery of the vehicle are set at the outer periphery of a vehicle body, a plurality of speakers are arranged in a vehicle room, sound including positional information from the objects existing at the periphery of the vehicle is inputted by a plurality of the microphones, and the sounds of the objects at the periphery of the vehicle are outputted to the vehicle occupant by a plurality of the speakers while maintaining positional information. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供便宜的设备以使车辆乘员在车辆的周边听到多个物体的声音,同时车辆的窗口原样打开,同时防止产生意外的谨慎滚动指导 车辆乘客。 解决方案:在车身外周设置多个用于收集车辆周边的声音的麦克风,多个扬声器布置在车室内,声音包括位于从车辆外部存在的物体的位置信息 通过多个麦克风输入车辆的周边,并且通过多个扬声器将车辆周围的物体的声音输出到车辆乘员,同时保持位置信息。 版权所有(C)2008,JPO&INPIT
    • 7. 发明专利
    • Vehicle outside warning device and vehicle warning method
    • 车辆外部警告装置和车辆警告方法
    • JP2007237831A
    • 2007-09-20
    • JP2006061070
    • 2006-03-07
    • Nissan Motor Co Ltd日産自動車株式会社
    • YAMAZAKI MASARUKAMINUMA MITSUNOBU
    • B60Q5/00B60R21/00G01C21/00G08G1/16G10K15/04
    • B60Q5/008G08G1/166
    • PROBLEM TO BE SOLVED: To provide a vehicle outside warning device warning the approach of a vehicle to pedestrians and a warning method thereof.
      SOLUTION: When a pedestrian 41 exists in front (for example, 10 m ahead) of a vehicle, an output device radiates ultrasonic waves toward a road surface in front of the pedestrian 41. The ultrasonic waves radiated from the output device 16 causes nonlinear interaction in a step propagating in air and reflecting on a road surface, and recovered to voice which can be heard. The road surface when the ultrasonic waves reach becomes a virtual sound source 42. The pedestrian 41 can hear the recovered alarm sound like as the alarm sound is generated from the virtual sound source 42, and can notice the approach of the vehicle 20 from the alarm sound.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供车辆外部警告装置警告车辆对行人的接近及其警告方法。 解决方案:当行人41存在于车辆的前方(例如,前方10m)时,输出装置向行人41前方的路面辐射超声波。从输出装置16发射的超声波 导致在空气中传播并在路面上反射的步骤中的非线性相互作用,并且恢复到可以听到的声音。 当超声波到达时的路面将成为虚拟声源42.行人41可以像从虚拟声源42产生警报声音一样听到恢复的报警声,并且可以从警报器中注意到车辆20的接近 声音。 版权所有(C)2007,JPO&INPIT
    • 9. 发明专利
    • Sound input device
    • 声音输入设备
    • JP2006084974A
    • 2006-03-30
    • JP2004271584
    • 2004-09-17
    • Nissan Motor Co Ltd日産自動車株式会社
    • SAITO DAISUKEKAMINUMA MITSUNOBU
    • G10L15/20G10L21/02
    • PROBLEM TO BE SOLVED: To provide a sound input device capable of removing noise of diffusivity with a small calculation amount compared with the SBE applied to a general frequency region ICA.
      SOLUTION: The sound input device acquires detection signals in which an object signal and a non-object signal are intermingled, by detecting a sound in which an object signal and a non-object signal are intermingled, with microphones 10-1 to 10-n, and acquires a sound signal separation filter that separates at least one object signal from the detection signals by repeated learning. It comprises a band dividing means 103 that divides a sound frequency band into a plurality of frequency division bands, and the number of iterations deciding means 104 that decides the number of iterations of learning in each frequency division band so that it is directly proportional to the strength of the object signal contained in the detection signals in each of the frequency division bands.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种声音输入装置,其与应用于一般频率区域ICA的SBE相比,能够以较小的计算量消除扩散性的噪声。 解决方案:声音输入装置通过检测对象信号和非对象信号混合的声音,通过麦克风10-1至...来获取对象信号和非对象信号混合的检测信号 10-n,并且通过重复学习获取从检测信号中分离出至少一个目标信号的声音信号分离滤波器。 它包括将声频带划分成多个频分带的频带划分装置103和决定每个频分带中的学习迭代次数的迭代次数确定装置104,使得它与 每个分频频带中的检测信号中包含的对象信号的强度。 版权所有(C)2006,JPO&NCIPI
    • 10. 发明专利
    • Sound field control apparatus
    • 声场控制装置
    • JP2006050072A
    • 2006-02-16
    • JP2004225536
    • 2004-08-02
    • Nissan Motor Co Ltd日産自動車株式会社
    • KAMINUMA MITSUNOBU
    • H04S5/02B60R11/02
    • H04S3/008
    • PROBLEM TO BE SOLVED: To provide a sound field control apparatus wherein the processing cost is reduced. SOLUTION: The sound field control apparatus includes: a sound output means 4 for outputting a control sound for forming a sound field; a storage means 1 for storing in advance the control sound outputted from the sound output means 4 and designed to form a prescribed observing sound at a prescribed control point by each prescribed environment; an environment detection means 2 for detecting the environment of a sound field including the control point; and an output control means 3 for selecting the control sound corresponding to the observing sound whose output is requested by a sound output request and corresponding to the detected environment among the control sounds stored in the storage means 1 when acquiring the sound output request for requesting the output of the prescribed observing sound and allowing the sound output means 4 to output the selected control sound, and the sound field control apparatus generates a prescribed sound field including one or more preset listening points and/or silencing points as the control points under a prescribed environment. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种降低处理成本的声场控制装置。 解决方案:声场控制装置包括:声音输出装置4,用于输出用于形成声场的控制声音; 一个存储装置1,用于预先存储从声音输出装置4输出的控制声音,并被设计成在规定的环境下在规定的控制点处形成规定的观察声音; 环境检测装置2,用于检测包括控制点的声场的环境; 以及输出控制装置3,用于当获取用于请求的声音输出请求时,选择与存储在存储装置1中的控制声音中的检测环境对应的与声音输出请求相对应的输出的观测声对应的控制声音 输出规定的观察声音,并且允许声音输出装置4输出所选择的控制声音,并且声场控制装置产生包括一个或多个预设收听点和/或沉默点的规定声场作为规定的控制点 环境。 版权所有(C)2006,JPO&NCIPI