公开(公告)号：US20150365750A1

公开(公告)日：2015-12-17

申请号：US14305007

申请日：2014-06-16

Applicant: MEDIATEK INC.

Inventor： Liang-Che Sun ,  Yiou-Wen Cheng

IPC: H04R1/08 ,  H04R3/04

CPC classification number: H04R1/08 ,  G01H3/08 ,  G06F3/167 ,  H04R3/00 ,  H04R2410/00 ,  H04R2499/11

Abstract: An electronic device includes a receiver and an activator. The receiver includes a microphone; and a signal detector, coupled to the microphone, for determining whether a valid input signal received from the microphone is a voice signal or an ultrasonic signal by comparing a frequency of the valid input signal with at least two frequency bands, and accordingly passing the valid input signal. The activator includes a voice detection module, for performing a voice activated process; and an ultrasonic detection module, for performing an ultrasound activated process. The voice detection module and the ultrasonic detection module are enabled by the signal detector simultaneously or separately.

Abstract translation: 电子设备包括接收器和激活器。 接收机包括麦克风; 以及耦合到所述麦克风的信号检测器，用于通过将所述有效输入信号的频率与至少两个频带进行比较来确定从所述麦克风接收到的有效输入信号是语音信号还是超声信号，并相应地通过所述有效输入信号 输入信号。 激活器包括用于执行语音激活过程的语音检测模块; 以及用于执行超声激活过程的超声波检测模块。 语音检测模块和超声波检测模块由信号检测器同时或分开使能。

公开(公告)号：US20150185069A1

公开(公告)日：2015-07-02

申请号：US14419487

申请日：2013-07-02

Applicant: ATLAS ELEKTRONIK GmbH

Inventor： Gregor Meerpohl

IPC: G01H3/08 ,  G01S3/80

CPC classification number: G01H3/08 ,  G01S3/80

Abstract: The invention relates to a method for determining a frequency line pattern within at least one amplitude spectrum generated from acoustic signals that are emitted from at least one detected vehicle and received by means of a sonar installation. First, a predetermined number of frequency lines is selected in the (or each) amplitude spectrum, and by sorting them on their amplitude size and on the basis of a threshold value which ensures that the pre-determined, appropriate number is not exceeded. After several threshold values are set, a comparison of frequency lines with each other takes place for those that have been selected taking into account at least one threshold value. The preliminary frequency line set with associated fundamental frequency, evaluated because of its recognizable structures, is then determined, by comparing the line pairs formed. Using a process of elimination, final frequency line sets are formed, under consideration of an assessment which depends on the sequence, number, density, and amplitude of the fundamental frequency of the frequency lines. Then strong individual lines can be found, which are possibly contained in the spectrum. A target-related frequency line pattern is assigned to each detected vehicle, based on which the classification of the vehicle becomes possible.The invention further relates to a corresponding apparatus for carrying out the given method.

Abstract translation: 本发明涉及一种用于确定由从至少一个检测到的车辆发射并通过声纳安装接收的声信号产生的至少一个幅度谱内的频率线图案的方法。 首先，在（或每个）幅度频谱中选择预定数量的频率线，并且通过对它们的振幅大小进行分类，并且基于确保不超过预定的适当数量的阈值。 在设置了几个阈值之后，对于已经被选择的频率线彼此进行比较，考虑到至少一个阈值。 通过比较形成的线对来确定由相关的基频设置的初步频率线，由于其可识别的结构而被评估。 使用消除过程，在考虑到取决于频率线的基频的序列，数量，密度和幅度的评估时，形成最终频率线集合。 然后可以发现强大的个体行，这些行可能包含在频谱中。 将目标相关频率线图案分配给每个检测到的车辆，基于该目标车辆的分类可以进行。 本发明还涉及用于执行给定方法的相应装置。

公开(公告)号：US08108166B2

公开(公告)日：2012-01-31

申请号：US12352642

申请日：2009-01-13

Applicant: Jack Harris Arnold ,  Douglas Scott Bendele ,  Xianglin Mo ,  Chen Zhang

Inventor： Jack Harris Arnold ,  Douglas Scott Bendele ,  Xianglin Mo ,  Chen Zhang

IPC: G06F19/00

CPC classification number: G01H3/005 ,  G01H3/08

Abstract: Log chirp testing where a log chirp may be provided to a device under test and a first time domain response from the device under test may be received. The first time domain response may be in the time domain. The first time domain response may be converted to the angular domain to create an angular domain response. Converting to the angular domain response may include resampling the time domain response from the time domain to the angular domain. The angular domain response may be filtered and/or analyzed. The angular domain response may be converted to a second time domain response. Similar to above, the conversion may include resampling the angular domain response from the angular domain to the time domain. The first time domain response and the second time domain response may be analyzed. Testing results of the device under test may be generated and stored based on said analyzing.

Abstract translation: 记录啁啾测试，其中可以向被测设备提供日志啁啾声，并且可以接收来自被测设备的第一时域响应。 第一个时域响应可能在时域。 可以将第一时域响应转换为角域以产生角域响应。 转换到角域响应可以包括将时域响应从时域重新采样到角域。 可以对角域响应进行滤波和/或分析。 角域响应可以被转换成第二时域响应。 与上述类似，转换可以包括将角域响应从角域重新采样到时域。 可以分析第一时域响应和第二时域响应。 可以根据所述分析生成并存储被测设备的测试结果。

公开(公告)号：US08028583B2

公开(公告)日：2011-10-04

申请号：US12064805

申请日：2006-07-07

Applicant: Fawzi Attia ,  Michael Fischer ,  Winfried Keiper ,  Thomas Zoeller ,  Uwe Bretz ,  Mats Karlsson ,  Uwe Martin ,  Michael Raquet

Inventor： Fawzi Attia ,  Michael Fischer ,  Winfried Keiper ,  Thomas Zoeller ,  Uwe Bretz ,  Mats Karlsson ,  Uwe Martin ,  Michael Raquet

IPC: G01D7/00

CPC classification number: G01H3/08

Abstract: A method for detecting squeaking noises within a sound signal generated during operation of a motor vehicle or during operation of a component thereof is described; in this method the sound signal is detected; an amplitude spectrum of the sound signal representing the amplitude distribution in a frequency range is generated at a minimum of two points in time and the existence of a squeaking noise is detected by analysis of the at least two amplitude spectra.

Abstract translation: 描述了用于检测在机动车辆操作期间或其部件的操作期间产生的声音信号中的吱吱声噪声的方法; 在该方法中，检测声音信号; 表示频率范围内的振幅分布的声音信号的幅度频谱在至少两个时间点产生，并且通过分析至少两个幅度谱来检测吱吱声的存在。

公开(公告)号：US20100070226A1

公开(公告)日：2010-03-18

申请号：US12352642

申请日：2009-01-13

Applicant: Jack Harris Arnold ,  Douglas Scott Bendele ,  Xianglin Mo ,  Chen Zhang

Inventor： Jack Harris Arnold ,  Douglas Scott Bendele ,  Xianglin Mo ,  Chen Zhang

IPC: G06F19/00 ,  G01R23/16

CPC classification number: G01H3/005 ,  G01H3/08

Abstract: Log chirp testing where a log chirp may be provided to a device under test and a first time domain response from the device under test may be received. The first time domain response may be in the time domain. The first time domain response may be converted to the angular domain to create an angular domain response. Converting to the angular domain response may include resampling the time domain response from the time domain to the angular domain. The angular domain response may be filtered and/or analyzed. The angular domain response may be converted to a second time domain response. Similar to above, the conversion may include resampling the angular domain response from the angular domain to the time domain. The first time domain response and the second time domain response may be analyzed. Testing results of the device under test may be generated and stored based on said analyzing.

Abstract translation: 记录啁啾测试，其中可以向被测设备提供日志啁啾声，并且可以接收来自被测设备的第一时域响应。 第一个时域响应可能在时域。 可以将第一时域响应转换为角域以产生角域响应。 转换到角域响应可以包括将时域响应从时域重新采样到角域。 可以对角域响应进行滤波和/或分析。 角域响应可以被转换成第二时域响应。 与上述类似，转换可以包括将角域响应从角域重新采样到时域。 可以分析第一时域响应和第二时域响应。 可以根据所述分析生成并存储被测设备的测试结果。

公开(公告)号：US20090204359A1

公开(公告)日：2009-08-13

申请号：US12320789

申请日：2009-02-04

Applicant: Robert Hoeldrich ,  Alois Sontacchi ,  Stephan Brandl

Inventor： Robert Hoeldrich ,  Alois Sontacchi ,  Stephan Brandl

IPC: G06F15/00 ,  G01P15/00

CPC classification number: G01H1/00 ,  G01H3/08

Abstract: A method for determining the contributions of individual sound transmission paths to the operation-dependent total noise of a sound transmitting structure includes the following steps: applying at least one acceleration sensor and/or source microphone in the area of each sound input position; applying at least one target microphone and/or acceleration sensor in the area of a receiving position; carrying out at least one simultaneous measurement of sound pressure and/or acceleration at the receiving position and of acceleration and/or sound pressure at each sound input position during operation; determining at least one acceleration-to-pressure and/or acceleration-to-acceleration sensitivity function and/or at least one pressure-to-pressure sensitivity function; determining reciprocally measured frequency response functions between each sound input position and each receiving position; determining the inertances in the operational state for at least one sound input position; determining of at least one force at at least one sound input position based on the computed inertances and the accelerations measured during operation at the sound input positions; and determining the contributions of the individual transmission paths.

Abstract translation: 用于确定各个声音传播路径对声音传输结构的操作相关总噪声的贡献的方法包括以下步骤：在每个声音输入位置的区域中施加至少一个加速度传感器和/或源麦克风; 在接收位置的区域中施加至少一个目标麦克风和/或加速度传感器; 在操作期间进行至少一次同时测量接收位置处的声压和/或加速度以及每个声音输入位置处的加速度和/或声压; 确定至少一个加速到压力和/或加速到加速度灵敏度函数和/或至少一个压力到压力敏感度函数; 确定每个声音输入位置和每个接收位置之间的往复测量的频率响应函数; 确定至少一个声音输入位置的操作状态中的惯性; 基于所计算的惯性和在声音输入位置处的操作期间测量的加速度，确定至少一个声音输入位置处的至少一个力; 以及确定各个传输路径的贡献。

公开(公告)号：US20090093896A1

公开(公告)日：2009-04-09

申请号：US12245067

申请日：2008-10-03

Applicant: Yoshiyuki KOBAYASHI

Inventor： Yoshiyuki KOBAYASHI

IPC: G06F17/00

CPC classification number: G10G3/04 ,  G01H3/08 ,  G10L25/90

Abstract: A signal processing apparatus subjects an audio signal to musical pitch analysis using different analysis techniques for the higher and lower frequencies. When an audio signal is input, a first extractor extracts a high-frequency signal, and a second extractor extracts a low-frequency signal from the audio signal. A high-frequency processor extracts pitch components from the high-frequency signal by applying the short-time Fourier transform. A low-frequency processor extracts pitch components from the low-frequency signal by dividing the low-frequency signal into a plurality of octave components. A synthesizing unit then combines the pitch components thus extracted from the high-frequency signal and the low-frequency signal and outputs the analysis result.

Abstract translation: 信号处理设备使用用于较高和较低频率的不同分析技术对音频信号进行音调音调分析。 当输入音频信号时，第一提取器提取高频信号，第二提取器从音频信号中提取低频信号。 高频处理器通过应用短时傅立叶变换从高频信号中提取音调分量。 低频处理器通过将低频信号划分为多个八度分量来从低频信号中提取音调分量。 合成单元然后组合从高频信号和低频信号提取的音调分量，并输出分析结果。

公开(公告)号：US20090019936A1

公开(公告)日：2009-01-22

申请号：US12064805

申请日：2006-07-07

Applicant: Fawzi Attia ,  Michael Fischer ,  Winfried Keiper ,  Thomas Zoeller ,  Uwe Bretz ,  Mats Karlsson ,  Uwe Martin ,  Michael Raquet

Inventor： Fawzi Attia ,  Michael Fischer ,  Winfried Keiper ,  Thomas Zoeller ,  Uwe Bretz ,  Mats Karlsson ,  Uwe Martin ,  Michael Raquet

IPC: G01H3/08

CPC classification number: G01H3/08

Abstract: A method for detecting squeaking noises within a sound signal generated during operation of a motor vehicle or during operation of a component thereof is described; in this method the sound signal is detected; an amplitude spectrum of the sound signal representing the amplitude distribution in a frequency range is generated at a minimum of two points in time and the existence of a squeaking noise is detected by analysis of the at least two amplitude spectra.

Abstract translation: 描述了用于检测在机动车辆操作期间或其部件的操作期间产生的声音信号中的吱吱声噪声的方法; 在该方法中，检测声音信号; 表示频率范围内的振幅分布的声音信号的幅度频谱在至少两个时间点产生，并且通过分析至少两个幅度谱来检测吱吱声的存在。

公开(公告)号：US07444853B2

公开(公告)日：2008-11-04

申请号：US11270622

申请日：2005-11-10

Applicant: Yongbeom Lee ,  Xuan Zhu ,  Jaewon Lee

Inventor： Yongbeom Lee ,  Xuan Zhu ,  Jaewon Lee

IPC: G01M13/00

CPC classification number: G01H3/08

Abstract: An impulse event separating method, and an apparatus to perform the method, the method including dividing an input signal into frame units and dividing each frame into a plurality of frequency sub-bands; obtaining a power variation and phase variation of the signal of each of the frequency sub-bands, and detecting a plurality of local onsets using the power variation and the phase variation; obtaining a global onset from the local onsets and triggering a plurality of event components using the local onsets and the global onset; tracking and combining the event components in each of the frequency sub-bands to form events; and determining whether the events comprise an impulse event with reference to an impulse event property.

Abstract translation: 一种脉冲事件分离方法和一种执行该方法的装置，所述方法包括将输入信号划分为帧单元并将每个帧分成多个频率子带; 获得每个频率子带的信号的功率变化和相位变化，以及使用功率变化和相位变化来检测多个局部发射; 从本地onsets获得全局发作，并使用本地onsets和全局开始触发多个事件组件; 跟踪和组合每个频率子带中的事件分量以形成事件; 以及参考脉冲事件属性来确定所述事件是否包括脉冲事件。

公开(公告)号：US20080125992A1

公开(公告)日：2008-05-29

申请号：US11658536

申请日：2005-06-28

Applicant: Osamu Kuroda

Inventor： Osamu Kuroda

IPC: G01H17/00

CPC classification number: G01H3/08 ,  F01N13/00 ,  G10L25/15 ,  G10L25/69

Abstract: According to evaluation of tone quality of exhaust sound adapted to human audition, a characteristic of the tone quality of exhaust sound is objectively analyzed. There are provided a measuring process (M1) for sampling exhaust sound to be analyzed, by means of a microphone disposed in an exhaust system EX and converting the exhaust sound into an electric signal, an analyzing process (M2) for amplifying a high frequency component of the electric signal and performing a frequency analysis of the electric signal at an arbitrary time interval, a detecting process (M3) for detecting a first formant of the first peak from the low frequency side and a second formant of the second peak from the low frequency side, and a displaying process (M4) for displaying a relationship (brightness and sharpness) between the first formant and second formant in a predetermined time range.

Abstract translation: 根据适合人体试听的排气声音质量评估，客观分析排气声音质量的特点。 提供了一种用于通过设置在排气系统EX中的麦克风来抽取要分析的废气声音的测量过程（M 1），并将排气声音转换为电信号，用于放大高频的分析过程（M 2） 并且以任意时间间隔对电信号进行频率分析，检测从低频侧检测第一峰值的第一共振峰的检测处理（M 3）和第二峰值的第二共振峰 以及用于在预定时间范围内显示第一共振峰和第二共振峰之间的关系（亮度和锐度）的显示处理（M 4）。