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1. 发明申请

US20060052138A1 Multi-channel demodulation with blind digital beamforming 有权
标题翻译：具有盲数字波束成形的多信道解调
公开(公告)号：US20060052138A1
公开(公告)日：2006-03-09
申请号：US11264081
申请日：2005-11-01
申请人： James Reilly , Dean McArthur , Peter Edmonson
发明人： James Reilly , Dean McArthur , Peter Edmonson
IPC分类号： H04B1/38 , H04M1/00
CPC分类号： H04B7/0822
摘要： A system and method for receiving communication signals is provided. According to the method, a plurality of communication signals is received, each communication signal comprising one or more source signals. The plurality of communication signals are multiplexed into a multiplexed signal, which is then converted into a baseband signal. The baseband signal is sampled to produce a digital multiplexed signal comprising a plurality of samples. The samples are interpolated to generate respective interpolated digital signals, which are then subject to a blind signal separation operation to separate each of the source signals.
摘要翻译：提供了一种用于接收通信信号的系统和方法。根据该方法，接收多个通信信号，每个通信信号包括一个或多个源信号。多个通信信号被复用为多路复用信号，然后将其转换为基带信号。基带信号被采样以产生包括多个样本的数字多路复用信号。样本被内插以产生相应的内插数字信号，然后进行盲信号分离操作以分离每个源信号。

2. 发明授权

US07174291B2 Noise suppression circuit for a wireless device 有权
标题翻译：无线设备的噪声抑制电路
公开(公告)号：US07174291B2
公开(公告)日：2007-02-06
申请号：US10620551
申请日：2003-07-16
申请人： Dean McArthur , Jim Reilly
发明人： Dean McArthur , Jim Reilly
IPC分类号： G10L19/14
CPC分类号： G10L21/0208 , G10L2021/02165 , G10L2021/02166
摘要： An adaptive noise suppression system includes an input A/D converter, an analyzer, a filter, and a output D/A converter. The analyzer includes both feed-forward and feedback signal paths that allow it to compute a filtering coefficient, which is input to the filter. In these paths, feed-forward signal are processed by a signal to noise ratio estimator, a normalized coherence estimator, and a coherence mask. Also, feedback signals are processed by a auditory mask estimator. These two signal paths are coupled together via a noise suppression filter estimator. A method according to the present invention includes active signal processing to preserve speech-like signals and suppress incoherent noise signals. After a signal is processed in the feed-forward and feedback paths, the noise suppression filter estimator then outputs a filtering coefficient signal to the filter for filtering the noise out of the speech and noise digital signal.
摘要翻译：自适应噪声抑制系统包括输入A / D转换器，分析器，滤波器和输出D / A转换器。分析仪包括前馈和反馈信号路径，允许其计算滤波系数，滤波系数被输入到滤波器。在这些路径中，前馈信号由信噪比估计器，标准化相干估计器和相干掩模进行处理。此外，反馈信号由听觉掩模估计器处理。这两个信号路径通过噪声抑制滤波器估计器耦合在一起。根据本发明的方法包括有源信号处理以保持类似语音的信号并抑制非相干噪声信号。在前馈和反馈路径中处理信号之后，噪声抑制滤波器估计器然后将滤波系数信号输出到滤波器，用于从语音和噪声数字信号中滤除噪声。

3. 发明授权

US07047043B2 Multi-channel demodulation with blind digital beamforming 有权
标题翻译：具有盲数字波束成形的多信道解调
公开(公告)号：US07047043B2
公开(公告)日：2006-05-16
申请号：US10163912
申请日：2002-06-06
申请人： James Reilly , Dean McArthur , Peter J. Edmonson
发明人： James Reilly , Dean McArthur , Peter J. Edmonson
IPC分类号： H04B1/38 , H04B1/06 , H04J3/04
CPC分类号： H04B7/0822
摘要： A communication signal receiver and associated method are disclosed. A plurality of communication signals are received at an atenna array and time multiplexed into a single multiplexed signal. Each of the communication signals comprises an unknown mixture of a plurality of source signals from a plurality of communication signal sources. A signal separation network is configured to separate the K source signals from the multiplexed signal.
摘要翻译：公开了一种通信信号接收机及相关方法。多个通信信号在天线阵列处被接收并且被时分复用成单个复用信号。每个通信信号包括来自多个通信信号源的多个源信号的未知混合。信号分离网络被配置为从复用的信号中分离K个源信号。

4. 发明授权

US06473733B1 Signal enhancement for voice coding 有权
标题翻译：语音编码信号增强
公开(公告)号：US06473733B1
公开(公告)日：2002-10-29
申请号：US09452623
申请日：1999-12-01
申请人： Dean McArthur , Jim Reilly
发明人： Dean McArthur , Jim Reilly
IPC分类号： G10L1520
CPC分类号： G10L21/0208 , G10L2021/02165 , G10L2021/02166
摘要： An adaptive noise suppression system includes an input A/D converter, an analyzer, a filter, and a output D/A converter. The analyzer includes both feed-forward and feedback signal paths that allow it to compute a filtering coefficient, which is input to the filter. In these paths, feed-forward signal are processed by a signal to noise ratio estimator, a normalized coherence estimator, and a coherence mask. Also, feedback signals are processed by a auditory mask estimator. These two signal paths are coupled together via a noise suppression filter estimator. A method according to the present invention includes active signal processing to preserve speech-like signals and suppress incoherent noise signals. After a signal is processed in the feed-forward and feedback paths, the noise suppression filter estimator then outputs a filtering coefficient signal to the filter for filtering the noise out of the speech and noise digital signal.
摘要翻译：自适应噪声抑制系统包括输入A / D转换器，分析器，滤波器和输出D / A转换器。分析仪包括前馈和反馈信号路径，允许其计算滤波系数，滤波系数被输入到滤波器。在这些路径中，前馈信号由信噪比估计器，标准化相干估计器和相干掩模进行处理。此外，反馈信号由听觉掩模估计器处理。这两个信号路径通过噪声抑制滤波器估计器耦合在一起。根据本发明的方法包括有源信号处理以保持类似语音的信号并抑制非相干噪声信号。在前馈和反馈路径中处理信号之后，噪声抑制滤波器估计器然后将滤波系数信号输出到滤波器，用于从语音和噪声数字信号中滤除噪声。

5. 发明授权

US06647367B2 Noise suppression circuit 有权
标题翻译：噪声抑制电路
公开(公告)号：US06647367B2
公开(公告)日：2003-11-11
申请号：US10223409
申请日：2002-08-19
申请人： Dean McArthur , Jim Reilly
发明人： Dean McArthur , Jim Reilly
IPC分类号： G10L2102
CPC分类号： G10L21/0208 , G10L2021/02165 , G10L2021/02166
摘要： An adaptive noise suppression system includes an input A/D converter, an analyzer, a filter, and a output D/A converter. The analyzer includes both feed-forward and feedback signal paths that allow it to compute a filtering coefficient, which is input to the filter. In these paths, feed-forward signal are processed by a signal to noise ratio estimator, a normalized coherence estimator, and a coherence mask. Also, feedback signals are processed by a auditory mask estimator. These two signal paths are coupled together via a noise suppression filter estimator. A method according to the present invention includes active signal processing to preserve speech-like signals and suppress incoherent noise signals. After a signal is processed in the feed-forward and feedback paths, the noise suppression filter estimator then outputs a filtering coefficient signal to the filter for filtering the noise out of the speech and noise digital signal.
摘要翻译：自适应噪声抑制系统包括输入A / D转换器，分析器，滤波器和输出D / A转换器。分析仪包括前馈和反馈信号路径，允许其计算滤波系数，滤波系数被输入到滤波器。在这些路径中，前馈信号由信噪比估计器，标准化相干估计器和相干掩模进行处理。此外，反馈信号由听觉掩模估计器处理。这两个信号路径通过噪声抑制滤波器估计器耦合在一起。根据本发明的方法包括有源信号处理以保持类似语音的信号并抑制非相干噪声信号。在前馈和反馈路径中处理信号之后，噪声抑制滤波器估计器然后将滤波系数信号输出到滤波器，用于从语音和噪声数字信号中滤除噪声。

6. 发明授权

US07369877B2 Multi-channel demodulation with blind digital beamforming 有权
标题翻译：具有盲数字波束成形的多信道解调
公开(公告)号：US07369877B2
公开(公告)日：2008-05-06
申请号：US11264081
申请日：2005-11-01
申请人： James Reilly , Dean McArthur , Peter J. Edmonson
发明人： James Reilly , Dean McArthur , Peter J. Edmonson
IPC分类号： H04B1/38 , H04B1/06 , H04J3/04
CPC分类号： H04B7/0822
摘要： A system and method for receiving communication signals is provided. According to the method, a plurality of communication signals is received, each communication signal comprising one or more source signals. The plurality of communication signals are multiplexed into a multiplexed signal, which is then converted into a baseband signal. The baseband signal is sampled to produce a digital multiplexed signal comprising a plurality of samples. The samples are interpolated to generate respective interpolated digital signals, which are then subject to a blind signal separation operation to separate each of the source signals.
摘要翻译：提供了一种用于接收通信信号的系统和方法。根据该方法，接收多个通信信号，每个通信信号包括一个或多个源信号。多个通信信号被复用为多路复用信号，然后将其转换为基带信号。基带信号被采样以产生包括多个样本的数字多路复用信号。样本被内插以产生相应的内插数字信号，然后进行盲信号分离操作以分离每个源信号。

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