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1. 发明申请

US20090323528A1 Method and Apparatus to Inspect Wireless Traffic and Mitigate Packet Elimination for Wireless Saturation Avoidance 有权
标题翻译：检测无线通信的方法和设备，减少无线饱和度避免的数据包消除
公开(公告)号：US20090323528A1
公开(公告)日：2009-12-31
申请号：US12206053
申请日：2008-09-08
申请人： Michael T. Loiacono , Justinian Rosca , Octavian Sarca , Radu Victor Balan
发明人： Michael T. Loiacono , Justinian Rosca , Octavian Sarca , Radu Victor Balan
IPC分类号： H04L12/56
CPC分类号： H04L47/10 , H04L41/142 , H04L43/0882 , H04L47/11 , H04L47/12 , H04L47/14 , H04L47/263 , H04L47/29 , H04L47/32 , Y02D50/10
摘要： A method for controlling packet flow in a packet transmission network. The method includes determining a parameter representative of packet congestion on the network, and adjusting a flow of packets onto the network in accordance with such parameter. The adjusting is a function of the time history of the parameter and the time average of such parameter relative to predetermined threshold levels. The adjusting selects one of a plurality of states, transitions between the states being a function of the time history of the parameter and the time average of such parameter relative to predetermined threshold levels.
摘要翻译：一种用于控制分组传输网络中的分组流的方法。该方法包括确定表示网络上的分组拥塞的参数，以及根据该参数调整分组到网络上的流。调整是参数的时间历程和这种参数相对于预定阈值水平的时间平均的函数。调整选择多个状态之一，状态之间的转换是参数的时间历程和相对于预定阈值水平的这种参数的时间平均的函数。

2. 发明授权

US07302066B2 Method for eliminating an unwanted signal from a mixture via time-frequency masking 有权
标题翻译：通过时频屏蔽从混合中消除不需要的信号的方法
公开(公告)号：US07302066B2
公开(公告)日：2007-11-27
申请号：US10678372
申请日：2003-10-03
申请人： Radu Victor Balan , Scott Rickard , Justinian Rosca
发明人： Radu Victor Balan , Scott Rickard , Justinian Rosca
IPC分类号： H04B3/00
CPC分类号： G10L21/0208 , G10L2021/02165
摘要： A method is presented for eliminating an unwanted signal (e.g., background music, interference, etc.) from a mixture of a desired signal and the unwanted signal via time-frequency masking. Given a mixture of the desired signal and the unwanted signal, the goal of the present invention is to eliminate or at least reduce the effects of the unwanted signal to obtain an estimate of the desired signal.
摘要翻译：提出了一种用于通过时频屏蔽从期望信号和不期望信号的混合中消除不需要的信号（例如，背景音乐，干扰等）的方法。给定期望信号和不想要的信号的混合，本发明的目标是消除或至少减少不想要的信号的影响以获得期望信号的估计。

3. 发明授权

US07218741B2 System and method for adaptive multi-sensor arrays 有权
标题翻译：自适应多传感器阵列的系统和方法
公开(公告)号：US07218741B2
公开(公告)日：2007-05-15
申请号：US10454849
申请日：2003-06-04
申请人： Radu Victor Balan , Justinian Rosca , Liang Hong , Volkmar Hamacher , Eghart Fischer
发明人： Radu Victor Balan , Justinian Rosca , Liang Hong , Volkmar Hamacher , Eghart Fischer
IPC分类号： H04R3/00
CPC分类号： H04R3/005 , G06K9/0057 , G10L2021/02166 , H04R25/407 , H04R2430/21 , H04R2499/13
摘要： An adaptive differential microphone array method comprises receiving a signal, estimating a measured signal spectral covariance matrix of the signal, and estimating a direction of arrival of the signal based on the measured signal spectral covariance matrix of the signal. The method further comprises determining a fractional delay, and applying a differential microphone array filter to the signal based on the direction of arrival and the fractional delay.
摘要翻译：自适应差分麦克风阵列方法包括：接收信号，估计所述信号的测量信号频谱协方差矩阵，以及基于所述信号的测量信号频谱协方差矩阵来估计所述信号的到达方向。该方法还包括确定分数延迟，以及基于到达方向和分数延迟将差分麦克风阵列滤波器应用于信号。

4. 发明授权

US08737213B2 Method for congestion detection in packet transmission networks 有权
标题翻译：分组传输网络拥塞检测方法
公开(公告)号：US08737213B2
公开(公告)日：2014-05-27
申请号：US13026364
申请日：2011-02-14
申请人： Radu Victor Balan , Chih-Wei Huang , Justinian Rosca , Octavian Sarca
发明人： Radu Victor Balan , Chih-Wei Huang , Justinian Rosca , Octavian Sarca
IPC分类号： H04J1/16
CPC分类号： H04L47/10 , H04L43/00 , H04L43/0847 , H04L43/0888 , H04L43/0894 , H04L47/11 , H04L47/14 , H04L47/28 , H04W28/10
摘要： A method for measuring degree of packet congestion on a channel of a packet communication network. The method includes: during a training mode, generating an mathematical relationship between the degree of packet congestion on the channel and a plurality of measurable features of the network over a plurality of network conditions; and, during a subsequent normal operating mode, periodically measuring the plurality of measurable features and applying the generated mathematical relationship to such periodically measured plurality of measurable features to determine actual degree of congestion on the channel; and comparing the actual degree of congestion on the channel with a predetermined channel congestion threshold level. The degree of packet congestion on the channel is saturation level. The measurable features include: time delay between transmission starts and terminations of the previously transmitted packet; the fraction of time the channel is busy; and, average number of packet transmission retries.
摘要翻译：一种用于测量分组通信网络的信道上的分组拥塞程度的方法。该方法包括：在训练模式期间，在多个网络条件下，在信道上的分组拥塞程度与网络的多个可测量特征之间产生数学关系; 并且在随后的正常操作模式期间，周期性地测量所述多个可测量特征并将所生成的数学关系应用于所述周期性测量的多个可测量特征以确定所述信道上的实际拥塞程度; 以及将所述信道上的实际拥塞程度与预定信道拥塞阈值级别进行比较。信道上的分组拥塞程度是饱和度。可测量的特征包括：传输开始之间的时间延迟和先前发送的分组的终止; 频道繁忙时间的一小部分; 并且平均分组传输重试次数。

5. 发明授权

US08045471B2 Method and apparatus to inspect wireless traffic and mitigate packet elimination for wireless saturation avoidance 有权
标题翻译：检查无线流量并减轻无线饱和度避免的数据包消除的方法和装置
公开(公告)号：US08045471B2
公开(公告)日：2011-10-25
申请号：US12206053
申请日：2008-09-08
申请人： Michael T. Loiacono , Justinian Rosca , Octavian Sarca , Radu Victor Balan
发明人： Michael T. Loiacono , Justinian Rosca , Octavian Sarca , Radu Victor Balan
IPC分类号： H04L12/26
CPC分类号： H04L47/10 , H04L41/142 , H04L43/0882 , H04L47/11 , H04L47/12 , H04L47/14 , H04L47/263 , H04L47/29 , H04L47/32 , Y02D50/10
摘要： A method for controlling packet flow in a packet transmission network. The method includes determining a parameter representative of packet congestion on the network, and adjusting a flow of packets onto the network in accordance with such parameter. The adjusting is a function of the time history of the parameter and the time average of such parameter relative to predetermined threshold levels. The adjusting selects one of a plurality of states, transitions between the states being a function of the time history of the parameter and the time average of such parameter relative to predetermined threshold levels.
摘要翻译：一种用于控制分组传输网络中的分组流的方法。该方法包括确定表示网络上的分组拥塞的参数，以及根据该参数调整分组到网络上的流。调整是参数的时间历程和这种参数相对于预定阈值水平的时间平均的函数。调整选择多个状态之一，状态之间的转换是参数的时间历程和相对于预定阈值水平的这种参数的时间平均的函数。

6. 发明授权

US07474756B2 System and method for non-square blind source separation under coherent noise by beamforming and time-frequency masking 有权
标题翻译：通过波束形成和时频掩蔽在相干噪声下进行非平方盲源分离的系统和方法
公开(公告)号：US07474756B2
公开(公告)日：2009-01-06
申请号：US10737444
申请日：2003-12-16
申请人： Scott Rickard , Radu Victor Balan , Justinian Rosca
发明人： Scott Rickard , Radu Victor Balan , Justinian Rosca
IPC分类号： H04B15/00
CPC分类号： G06K9/624
摘要： A system and method for non-square blind source separation (BSS) under coherent noise. The system and method for non-square BSS estimates the mixing parameters of a mixed source signal and filters the estimated mixing parameters so that output noise is reduced and the mixed source signal is separated from the noise. The filtering is accomplished by a linear filter that performs a beamforming for reducing the noise and another linear filter that solves a source separation problem by selecting time-frequency points where, according to a W-disjoint orthogonality assumption, only one source is active.
摘要翻译：一种在相干噪声下非平方盲源分离（BSS）的系统和方法。非平方BSS的系统和方法估计混合源信号的混合参数，并对估计的混合参数进行滤波，从而降低输出噪声，并将混合源信号与噪声分离。滤波是通过线性滤波器完成的，该滤波器执行用于降低噪声的波束成形，另一个线性滤波器通过选择时频点来解决源分离问题，其中根据W不相交正交性假设，只有一个源是活动的。

7. 发明授权

US07158933B2 Multi-channel speech enhancement system and method based on psychoacoustic masking effects 失效
标题翻译：基于心理声学掩蔽效应的多声道语音增强系统和方法
公开(公告)号：US07158933B2
公开(公告)日：2007-01-02
申请号：US10143393
申请日：2002-05-10
申请人： Radu Victor Balan , Justinian Rosca
发明人： Radu Victor Balan , Justinian Rosca
IPC分类号： G10L21/02 , G10L19/00
CPC分类号： G10L21/0208 , G10L2021/02161
摘要： The present invention is generally directed to a system and method for enhancing speech using a multi-channel noise filtering process that is based on psychoacoustic masking effects. A speech enhancement/noise reduction scheme according to the present invention is designed to satisfy the psychoacoustic masking principle and to minimize the signal total distortion by exploiting multiple microphone signals to enhance the useful speech signal at reduced level of artifacts.
摘要翻译：本发明一般涉及使用基于心理声学掩蔽效应的多声道噪声滤波处理来增强语音的系统和方法。根据本发明的语音增强/噪声降低方案被设计为满足心理声学屏蔽原理并且通过利用多个麦克风信号来减小信号总失真，以在减少的伪影水平增强有用语音信号。

8. 发明授权

US07149691B2 System and method for remotely experiencing a virtual environment 有权
标题翻译：用于远程体验虚拟环境的系统和方法
公开(公告)号：US07149691B2
公开(公告)日：2006-12-12
申请号：US09916918
申请日：2001-07-27
申请人： Radu Victor Balan , Dorin Comaniciu , Justinian Rosca , Sandra Sudarsky
发明人： Radu Victor Balan , Dorin Comaniciu , Justinian Rosca , Sandra Sudarsky
IPC分类号： G10L21/00
CPC分类号： G01S5/22 , G01S3/808 , G10L15/22 , H04R2201/401
摘要： A virtual environment system includes an acoustic localizer for detecting the location of sound sources in a local environment, a user data I/O device, a remote data I/O device in a remote world, and a system controller in data communication with the acoustic localizer, user data I/O device and remote data I/O device. Control of the remote data I/O device within the remote world is commanded by the system controller in response to movements of a user as detected by the acoustic localizer, and data acquired from the remote world by the remote data I/O device is transmitted to the user.
摘要翻译：虚拟环境系统包括用于检测本地环境中的声源的位置的声学定位器，用户数据I / O设备，远程世界中的远程数据I / O设备以及与声学的数据通信的系统控制器定位器，用户数据I / O设备和远程数据I / O设备。远程世界中的远程数据I / O设备的控制由系统控制器响应于由声源定位器检测到的用户的移动而被命令，并且传送由远程数据I / O设备从远程世界获取的数据给用户

9. 发明授权

US07084801B2 Apparatus and method for estimating the direction of arrival of a source signal using a microphone array 有权
标题翻译：使用麦克风阵列估计源信号的到达方向的装置和方法
公开(公告)号：US07084801B2
公开(公告)日：2006-08-01
申请号：US10454917
申请日：2003-06-05
申请人： Radu Victor Balan , Justinian Rosca
发明人： Radu Victor Balan , Justinian Rosca
IPC分类号： H03M1/12
CPC分类号： G06K9/0057 , H04R3/005 , H04R25/407
摘要： An apparatus for estimating the direction of arrival (“DOA”) of a source signal includes microphones for transducing the source signal, amplifiers in signal communication with a corresponding one of the microphones, analog-to-digital converters in signal communication with a corresponding one of the amplifiers, and a digital processor in signal communication with the analog-to-digital converters for estimating the direction of arrival of the source signal; where a corresponding method for estimating the DOA of the source signal at one of several microphones includes estimating the measured signal spectral covariance matrix (“Rx”), and estimating the angle of the DOA responsive to the measured signal spectral covariance matrix.
摘要翻译：用于估计源信号的到达方向（“DOA”）的装置包括用于转换源信号的麦克风，与对应的一个麦克风信号通信的放大器，与对应的一个信号通信的模数转换器以及数字处理器，用于与所述模数转换器进行信号通信，以估计所述源信号的到达方向; 其中用于估计多个麦克风之一处的源信号的DOA的相应方法包括估计所测量的信号频谱协方差矩阵（“Rx”），以及响应于测量的信号频谱协方差矩阵来估计DOA的角度。

10. 发明授权

US06901363B2 Method of denoising signal mixtures 有权
标题翻译：去噪信号混合的方法
公开(公告)号：US06901363B2
公开(公告)日：2005-05-31
申请号：US09982497
申请日：2001-10-18
申请人： Radu Victor Balan , Scott Thurston Rickard, Jr. , Justinian Rosca
发明人： Radu Victor Balan , Scott Thurston Rickard, Jr. , Justinian Rosca
IPC分类号： G10L21/02 , G01L21/02 , G01L11/02 , H04B15/00
CPC分类号： G10L21/0208
摘要： Disclosed is a method of denoising signal mixtures so as to extract a signal of interest, the method comprising receiving a pair of signal mixtures, constructing a time-frequency representation of each mixture, constructing a pair of histograms, one for signal-of-interest segments, the other for non-signal-of-interest segments, combining said histograms to create a weighting matrix, rescaling each time-frequency component of each mixture using said weighting matrix, and resynthesizing the denoised signal from the reweighted time-frequency representations.
摘要翻译：公开了一种去噪信号混合物以便提取感兴趣的信号的方法，该方法包括接收一对信号混合物，构建每个混合物的时间频率表示，构建一对直方图，一个用于感兴趣的信号段，另一个用于非信号感兴趣区段，组合所述直方图以创建加权矩阵，使用所述加权矩阵重新缩放每个混合的每个时间频率分量，并且从重新加权的时间频率表示中重新合成去噪信号。

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