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1. 发明授权

US07243060B2 Single channel sound separation 有权
标题翻译：单通道声音分离
公开(公告)号：US07243060B2
公开(公告)日：2007-07-10
申请号：US10406802
申请日：2003-04-02
申请人： Les Atlas , Jeffrey Thompson
发明人： Les Atlas , Jeffrey Thompson
IPC分类号： G10L11/00 , G10L21/00 , G10L15/20
CPC分类号： G10L21/028 , G10L21/0208
摘要： The speech of two or more simultaneous speakers (or other simultaneous sounds) conveyed in a single channel are distinguished. Joint acoustic/modulation frequency analysis and display tools are used to localize and separate sonorant portions of multiple-speakers' speech into distinct regions using invertible transform functions. For example, the regions representing one of the speakers are set to zero, and the inverted modified display maintains only the speech of the other speaker. A combined audio signal is manipulated using a base acoustic transform, followed by a second modulation transform, which separates the combined signals into distinguishable components. The components corresponding to the undesired speaker are masked, leaving only the second modulation transform of the desired speaker's audio signal. An inverse second modulation transform of the desired signal is performed, followed by an inverse base acoustic transform of the desired signal, providing an audio signal for only the desired speaker.
摘要翻译：区分在单个通道中传送的两个或多个同时发言者（或其他同时发声）的语音。联合声/调频分析和显示工具用于使用可逆变换函数将多扬声器语音的声部部分定位和分离为不同的区域。例如，表示其中一个扬声器的区域被设置为零，并且反向修改的显示仅保持另一扬声器的语音。使用基础声学变换来操纵组合的音频信号，随后进行第二调制变换，其将组合的信号分离成可区分的分量。对应于不需要的扬声器的组件被屏蔽，仅留下所需扬声器的音频信号的第二调制变换。执行期望信号的逆二次调制变换，随后是期望信号的反基底声波变换，仅为期望的扬声器提供音频信号。

2. 发明授权

US08571829B2 Detecting objects in shipping containers by vibration spectral analysis 有权
标题翻译：通过振动光谱分析检测运输容器中的物体
公开(公告)号：US08571829B2
公开(公告)日：2013-10-29
申请号：US12501092
申请日：2009-07-10
申请人： Les Atlas , Patrick McVittie
发明人： Les Atlas , Patrick McVittie
IPC分类号： G01G17/00 , G01G3/16
CPC分类号： G01H1/00 , B66C13/16 , G01H13/00 , G01V1/001
摘要： Objects in a cargo shipping container are detected by measuring vibration resonant frequency peaks of the container. The mass of an object on the floor of the container effects the vibration resonance of the container, enabling the object to be detected. A vibration source and a plurality of accelerometers are either attached to the steel structure of the container, or are disposed on a supporting structure, such as a cargo crane or lift, so that they contact the container. The vibration source causes the container to vibrate, and the accelerometers detect the vibration resonance of the container. A mismatch between a cargo manifest and an observed cargo, or detection of an object having relatively high mass, e.g., due to lead shielding, can justify a manual inspection. The process uses synchronous processing to achieve the sensitivity needed, is unobtrusive, and does not slow the flow of cargo through a facility.
摘要翻译：通过测量容器的振动共振频率峰值来检测货物运输容器中的物体。容器地板上的物体的质量会影响容器的振动共振，从而能够检测物体。振动源和多个加速度计附接到容器的钢结构，或者设置在诸如货物起重机或电梯的支撑结构上，使得它们接触容器。振动源使容器振动，加速度计检测容器的振动共振。货物舱单和观察到的货物之间的不匹配，或者检测到具有较高质量的物体，例如由于铅屏蔽，可以证明是手动检查。该过程使用同步处理来实现所需的灵敏度，不引人注意，并且不会减慢通过设施的货物流动。

3. 发明授权

US08019431B2 Enhanced signal processing for cochlear implants 有权
标题翻译：用于耳蜗植入物的增强信号处理
公开(公告)号：US08019431B2
公开(公告)日：2011-09-13
申请号：US12476979
申请日：2009-06-02
申请人： Kaibao Nie , Les Atlas , Jay Rubinstein , Xing Li , Charles Pascal Clark
发明人： Kaibao Nie , Les Atlas , Jay Rubinstein , Xing Li , Charles Pascal Clark
IPC分类号： A61N1/00
CPC分类号： A61N1/36036
摘要： The restoration of melody perception is a key remaining challenge in cochlear implants. A novel sound coding strategy is proposed that converts an input audio signal into time-varying electrically stimulating pulse trains. A sound is first split into several frequency sub-bands with a fixed filter bank or a dynamic filter bank tracking harmonics in sounds. Each sub-band signal is coherently downward shifted to a low-frequency base band. These resulting coherent envelope signals have Hermitian symmetric frequency spectrums and are thus real-valued. A peak detector or high-rate sampler of half-wave rectified coherent envelope signals in each sub-band further converts the coherent envelopes into rate-varying, interleaved pulse trains. Acoustic simulations of cochlear implants using this new technique with normal hearing listeners, showed significant improvement in melody recognition over the most common conventional stimulation approach used in cochlear implants.
摘要翻译：耳蜗感知的恢复是耳蜗植入物中仍然存在的关键问题。提出了一种新颖的声音编码策略，将输入音频信号转换为时变电刺激脉冲串。声音首先被分割成具有固定滤波器组或动态滤波器组的几个频率子带，以跟踪声音中的谐波。每个子带信号相干地向下移位到低频基带。这些产生的相干包络信号具有埃米特对称频谱，因此是实值。每个子带中的半波整流相干包络信号的峰值检测器或高速采样器进一步将相干包络转换成速率变化的交错脉冲串。使用这种新技术与正常听力听众的耳蜗植入物的声学模拟显示出在耳蜗植入物中使用的最常见的常规刺激方法的旋律识别显着改善。

4. 发明授权

US08126578B2 Clipped-waveform repair in acoustic signals using generalized linear prediction 失效
标题翻译：使用广义线性预测在声信号中进行剪辑波形修复
公开(公告)号：US08126578B2
公开(公告)日：2012-02-28
申请号：US11862068
申请日：2007-09-26
申请人： Les Atlas , Charles Pascal Clark
发明人： Les Atlas , Charles Pascal Clark
IPC分类号： G06F17/00
CPC分类号： G10L21/02 , G10L19/005 , G10L25/12
摘要： A method and system for optimally repairing a clipped audio signal. Clipping occurs when a waveform exceeds a dynamic range of a recording device. Portions of an audio signal exceeding the dynamic range or saturation level of the recording device are clipped, causing distortion when the clipped recorded signal is played. To address this problem, successive frames of the clipped audio data are repaired to fill in gaps where the data were clipped. For each frame, an iterative process repetitively estimates an auto-covariance and detects clipped samples in the frame or a sub-frame in order to compute a least-squares solution for the frame that interpolates the clipped data. The process can cause inverted peaks in the repaired data, which must then be rectified to produced corrected repaired data. The corrected repaired data for the successive frames are recombined using interpolation, to produce a complete repaired audio data set.
摘要翻译：一种用于最佳修复剪辑的音频信号的方法和系统。当波形超过记录装置的动态范围时，发生剪切。超过记录装置的动态范围或饱和度的音频信号的部分被限制，当被剪辑的记录信号被播放时导致失真。为了解决这个问题，剪辑的音频数据的连续帧被修复以填补数据被剪切的间隙。对于每个帧，迭代过程重复地估计自协方差并检测帧或子帧中的剪切样本，以便计算用于内插限幅数据的帧的最小二乘解。该过程可能导致已修复数据中的反转峰值，然后必须对其进行纠正以产生校正的修复数据。使用插值重新组合连续帧的校正后的数据，以产生完整的修复音频数据集。

5. 发明申请

US20100161254A1 DETECTING OBJECTS IN SHIPPING CONTAINERS BY VIBRATION SPECTRAL ANALYSIS 有权
标题翻译：通过振动频谱分析检测运输集装箱中的物体
公开(公告)号：US20100161254A1
公开(公告)日：2010-06-24
申请号：US12501092
申请日：2009-07-10
申请人： Les Atlas , Patrick McVittie
发明人： Les Atlas , Patrick McVittie
IPC分类号： G01N29/04 , G06F19/00
CPC分类号： G01H1/00 , B66C13/16 , G01H13/00 , G01V1/001
摘要： Objects in a cargo shipping container are detected by measuring vibration resonant frequency peaks of the container. The mass of an object on the floor of the container effects the vibration resonance of the container, enabling the object to be detected. A vibration source and a plurality of accelerometers are either attached to the steel structure of the container, or are disposed on a supporting structure, such as a cargo crane or lift, so that they contact the container. The vibration source causes the container to vibrate, and the accelerometers detect the vibration resonance of the container. A mismatch between a cargo manifest and an observed cargo, or detection of an object having relatively high mass, e.g., due to lead shielding, can justify a manual inspection. The process uses synchronous processing to achieve the sensitivity needed, is unobtrusive, and does not slow the flow of cargo through a facility.
摘要翻译：通过测量容器的振动共振频率峰值来检测货物运输容器中的物体。容器地板上的物体的质量会影响容器的振动共振，从而能够检测物体。振动源和多个加速度计附接到容器的钢结构，或者设置在诸如货物起重机或电梯的支撑结构上，使得它们接触容器。振动源使容器振动，加速度计检测容器的振动共振。货物舱单和观察到的货物之间的不匹配，或者检测到具有较高质量的物体，例如由于铅屏蔽，可以证明是手动检查。该过程使用同步处理来实现所需的灵敏度，不引人注意，并且不会减慢通过设施的货物流动。

6. 发明申请

US20080047350A1 USE OF ULTRASOUND FOR MONITORING SECURITY OF SHIPPING CONTAINERS 审中-公开
标题翻译：使用超声波监测运输集装箱的安全
公开(公告)号：US20080047350A1
公开(公告)日：2008-02-28
申请号：US11841198
申请日：2007-08-20
申请人： Les Atlas , Jonathan Cutter , Patrick McVittie
发明人： Les Atlas , Jonathan Cutter , Patrick McVittie
IPC分类号： G01N29/04
CPC分类号： G01S15/08 , G08B13/1618
摘要： Ultrasound is used to detect either or both the opening of a door of a shipping container or a change in the contents of a shipping container. Ultrasound signals transmitted from one or more ultrasonic transducers configured to be mounted within an interior of a shipping container travel through the interior and are reflected by a reflector, e.g., a corner reflector. The reflected ultrasound is received by an ultrasonic receiver, which produces an output signal corresponding to the received ultrasound signal. If the ultrasonic transducer or the reflector is mounted on the door, the time of flight of the ultrasound signal can be used to determine the distance that the ultrasound signal travels. Opening the door changes this distance, which can be detected. Similarly, changes in ultrasound reflected from contents in the shipping container can be detected and used to detect changes in the contents, which may be caused by terrorist activity.
摘要翻译：超声波用于检测运输集装箱的门的打开或运输集装箱的内容的变化。从配置成安装在运输容器的内部的一个或多个超声波换能器传输的超声波信号行进穿过内部，并被反射器（例如角部反射器）反射。反射超声波由超声波接收器接收，其产生对应于接收的超声信号的输出信号。如果超声波换能器或反射器安装在门上，超声信号的飞行时间可用于确定超声信号行进的距离。打开门改变这个距离，这可以被检测到。类似地，可以检测出反映在运输集装箱中的内容的超声波变化，并用于检测可能由恐怖活动引起的内容的变化。

7. 发明申请

US20090312820A1 ENHANCED SIGNAL PROCESSING FOR COCHLEAR IMPLANTS 有权
标题翻译：加强信号处理对于COCHLEAR IMPLANTS
公开(公告)号：US20090312820A1
公开(公告)日：2009-12-17
申请号：US12476979
申请日：2009-06-02
申请人： Kaibao Nie , Les Atlas , Jay Rubinstein , Xing Li , Charles Pascal Clark
发明人： Kaibao Nie , Les Atlas , Jay Rubinstein , Xing Li , Charles Pascal Clark
IPC分类号： A61F11/04 , A61N1/36
CPC分类号： A61N1/36036
摘要： The restoration of melody perception is a key remaining challenge in cochlear implants. A novel sound coding strategy is proposed that converts an input audio signal into time-varying electrically stimulating pulse trains. A sound is first split into several frequency sub-bands with a fixed filter bank or a dynamic filter bank tracking harmonics in sounds. Each sub-band signal is coherently downward shifted to a low-frequency base band. These resulting coherent envelope signals have Hermitian symmetric frequency spectrums and are thus real-valued. A peak detector or high-rate sampler of half-wave rectified coherent envelope signals in each sub-band further converts the coherent envelopes into rate-varying, interleaved pulse trains. Acoustic simulations of cochlear implants using this new technique with normal hearing listeners, showed significant improvement in melody recognition over the most common conventional stimulation approach used in cochlear implants.
摘要翻译：耳蜗感知的恢复是耳蜗植入物中仍然存在的关键问题。提出了一种新颖的声音编码策略，将输入音频信号转换为时变电刺激脉冲串。声音首先被分割成具有固定滤波器组或动态滤波器组的几个频率子带，以跟踪声音中的谐波。每个子带信号相干地向下移位到低频基带。这些产生的相干包络信号具有埃米特对称频谱，因此是实值。每个子带中的半波整流相干包络信号的峰值检测器或高速采样器进一步将相干包络转换成速率变化的交错脉冲串。使用这种新技术与正常听力听众的耳蜗植入物的声学模拟显示出在耳蜗植入物中使用的最常见的常规刺激方法的旋律识别显着改善。

8. 发明申请

US20090083031A1 CLIPPED-WAVEFORM REPAIR IN ACOUSTIC SIGNALS USING GENERALIZED LINEAR PREDICTION 失效
标题翻译：使用一般线性预测的声音信号中的CLIPPED-WAVEFORM修复
公开(公告)号：US20090083031A1
公开(公告)日：2009-03-26
申请号：US11862068
申请日：2007-09-26
申请人： Les Atlas , Charles Pascal Clark
发明人： Les Atlas , Charles Pascal Clark
IPC分类号： G10L19/00
CPC分类号： G10L21/02 , G10L19/005 , G10L25/12
摘要： A method and system for optimally repairing a clipped audio signal. Clipping occurs when a waveform exceeds a dynamic range of a recording device. Portions of an audio signal exceeding the dynamic range or saturation level of the recording device are clipped, causing distortion when the clipped recorded signal is played. To address this problem, successive frames of the clipped audio data are repaired to fill in gaps where the data were clipped. For each frame, an iterative process repetitively estimates an auto-covariance and detects clipped samples in the frame or a sub-frame in order to compute a least-squares solution for the frame that interpolates the clipped data. The process can cause inverted peaks in the repaired data, which must then be rectified to produced corrected repaired data. The corrected repaired data for the successive frames are recombined using interpolation, to produce a complete repaired audio data set.
摘要翻译：一种用于最佳修复剪辑的音频信号的方法和系统。当波形超过记录装置的动态范围时，发生剪切。超过记录装置的动态范围或饱和度的音频信号的部分被限制，当被剪辑的记录信号被播放时导致失真。为了解决这个问题，剪辑的音频数据的连续帧被修复以填补数据被剪切的间隙。对于每个帧，迭代过程重复地估计自协方差并检测帧或子帧中的剪切样本，以便计算用于内插限幅数据的帧的最小二乘解。该过程可能导致已修复数据中的反转峰值，然后必须对其进行纠正以产生校正的修复数据。使用插值重新组合连续帧的校正后的数据，以产生完整的修复音频数据集。

9. 发明申请

US20090048828A1 GAP INTERPOLATION IN ACOUSTIC SIGNALS USING COHERENT DEMODULATION 审中-公开
标题翻译：使用相关解调的声学信号中的GAP插值
公开(公告)号：US20090048828A1
公开(公告)日：2009-02-19
申请号：US11839355
申请日：2007-08-15
申请人： Les Atlas , Charles Pascal Clark
发明人： Les Atlas , Charles Pascal Clark
IPC分类号： G10L19/02
CPC分类号： G10L19/005
摘要： Information is estimated to fill-in even relatively long gaps (e.g., up to 250 ms) that occur in a signal due to physical errors in media or transmission, where the omitted information causes signal distortion. The signal is first divided into a plurality of subbands, since the gaps in each subband are individually easier to interpolate. Coherent demodulation is then employed on each subband signal to reduce the time-varying signals to a collection of pairs of frequency-modulated carriers multiplied by complex-valued envelopes, or modulators. Standard interpolation is then separately applied to the modulators and carriers of these pairs to fill-in the gaps in each of the subbands, and the interpolated pairs are remodulated. The resulting interpolated signals from each of the subbands are recombined to form the final interpolated output signal in which the gaps are filled in with estimated data.
摘要翻译：估计信息由于媒体或传输中的物理错误而在信号中填充甚至相当长的间隙（例如，高达250ms），其中省略的信息引起信号失真。信号首先被划分成多个子带，因为每个子带中的间隙容易内插。然后在每个子带信号上采用相干解调，以将时变信号减少到乘以复值包络或调制器的频率调制载波对的集合。然后将标准内插分别应用于这些对的调制器和载波以填充每个子带中的间隙，并且内插对被重新调制。来自每个子带的所产生的内插信号被重新组合以形成其中用估计数据填充间隙的最终内插输出信号。

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