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1. 发明申请

US20120131080A1 Multi-Input IIR Filter with Error Feedback 有权
标题翻译：具有错误反馈的多输入IIR滤波器
公开(公告)号：US20120131080A1
公开(公告)日：2012-05-24
申请号：US12952193
申请日：2010-11-22
申请人： Maged F. Barsoum , Jinwen Xi , Dariush Dabiri
发明人： Maged F. Barsoum , Jinwen Xi , Dariush Dabiri
IPC分类号： G06F17/10
CPC分类号： H03H17/04 , H03H2218/06
摘要： Methods and systems for multi-input IIR filters with error feedback are disclosed. By using multiple-inputs to generate multiple outputs during each iteration, a multi-input IIR filter in accordance with the present invention has greatly increased throughput. Furthermore, the addition of a multi-variable error feedback unit in accordance with the present invention in a multiple-input IIR filter can greatly increase the accuracy of the multi-variable IIR Filter.
摘要翻译：公开了具有误差反馈的多输入IIR滤波器的方法和系统。通过在每次迭代期间通过使用多输入来产生多个输出，根据本发明的多输入IIR滤波器大大提高了吞吐量。此外，在多输入IIR滤波器中添加根据本发明的多变量误差反馈单元可以大大提高多变量IIR滤波器的精度。

2. 发明授权

US08645446B2 Multi-input IIR filter with error feedback 有权
标题翻译：具有错误反馈的多输入IIR滤波器
公开(公告)号：US08645446B2
公开(公告)日：2014-02-04
申请号：US12952193
申请日：2010-11-22
申请人： Maged F. Barsoum , Jinwen Xi , Dariush Dabiri
发明人： Maged F. Barsoum , Jinwen Xi , Dariush Dabiri
IPC分类号： G06F17/10
CPC分类号： H03H17/04 , H03H2218/06
摘要： Methods and systems for multi-input IIR filters with error feedback are disclosed. By using multiple-inputs to generate multiple outputs during each iteration, a multi-input IIR filter in accordance with the present invention has greatly increased throughput. Furthermore, the addition of a multi-variable error feedback unit in accordance with the present invention in a multiple-input IIR filter can greatly increase the accuracy of the multi-variable IIR Filter.
摘要翻译：公开了具有误差反馈的多输入IIR滤波器的方法和系统。通过在每次迭代期间通过使用多输入来产生多个输出，根据本发明的多输入IIR滤波器大大提高了吞吐量。此外，在多输入IIR滤波器中添加根据本发明的多变量误差反馈单元可以大大提高多变量IIR滤波器的精度。

3. 发明授权

US08472514B2 Adaptive spectral enhancement and harmonic separation 有权
标题翻译：自适应光谱增强和谐波分离
公开(公告)号：US08472514B2
公开(公告)日：2013-06-25
申请号：US12952178
申请日：2010-11-22
申请人： Dariush Dabiri , Maged F. Barsoum
发明人： Dariush Dabiri , Maged F. Barsoum
IPC分类号： H03H7/30
CPC分类号： H03H21/0021 , H03H21/0012
摘要： A circuit and method perform adaptive spectral enhancement at a frequency ω1 (also called “fundamental” frequency) on an input signal y which includes electromagnetic interference (EMI) at an unknown frequency, to generate a fundamental-enhanced signal φ1 (or its complement). The fundamental-enhanced signal φ1 (or complement) is thereafter used in a notching circuit (also called “fundamental notching” circuit) to generate a fundamental-notched signal y−φ1. The fundamental-notched signal y−φ1 is itself enhanced to generate a harmonic-enhanced signal φ2 that is used to notch the fundamental-notched signal y−φ1 again, in one or more additional notching circuits that are connected in series with the fundamental notching circuit. The result (“cascaded-harmonic-notched” signal) is relatively free of EMI noise (fundamental and harmonics), and is used as an error signal for an adaptation circuit that in turn identifies the fundamental frequency ω1. Use of a cascaded-harmonic-notched signal as the error signal improves speed of convergence of adaptation.
摘要翻译：电路和方法在包括未知频率的电磁干扰（EMI）的输入信号y上以频率ω1（也称为“基本”频率）执行自适应频谱增强，以产生基本增强信号phi1（或其补码）。此后，在开槽电路（也称为“基本陷波”电路）中使用基本增强信号phi1（或补码）以产生基本缺陷信号y-phi1。基本缺陷信号y-phi1本身被增强以产生用于在与基本开槽串联连接的一个或多个额外的开槽电路中再次陷波基波切割信号y-phi1的谐波增强信号phi2 电路。结果（“级联谐波陷波”信号）相对没有EMI噪声（基波和谐波），并被用作自适应电路的误差信号，自适应电路又识别基频ω1。使用级联谐波陷波信号作为误差信号提高适应性收敛速度。

4. 发明申请

US20120014487A1 Adaptive Narrowband Interference Prediction Circuit and Method 有权
标题翻译：自适应窄带干扰预测电路及方法
公开(公告)号：US20120014487A1
公开(公告)日：2012-01-19
申请号：US12952184
申请日：2010-11-22
申请人： Dariush Dabiri , Maged F. Barsoum
发明人： Dariush Dabiri , Maged F. Barsoum
IPC分类号： H04B1/10
CPC分类号： H03H21/0021 , H03H21/0012
摘要： An input signal that includes narrowband interference is spectrally enhanced by an adaptive circuit that supplies as output signal(s), portion(s) of NBI at one or more frequencies that change adaptively. The output signal(s) are used in one or more tone predictor(s) to generate, based on prior values of the NBI portion, one or more predicted tone signals that are subtracted from a received signal containing the NBI, and the result is used in the normal manner, e.g. decoded. The adaptive circuit and the one or more tone predictor(s), form a feed-forward NBI predictor wherein the received signal is supplied as the input signal of the adaptive circuit. The result of subtraction may be supplied to a slicer that slices the result, yielding a sliced signal which is subtracted from the received signal to generate a signal can be used as the input signal, to implement a feedback NBI predictor.
摘要翻译：包括窄带干扰的输入信号由自适应电路进行光谱增强，该自适应电路以自适应变化的一个或多个频率提供NBI的一部分或多个输出信号。在一个或多个音调预测器中使用输出信号以根据NBI部分的先前值生成从包含NBI的接收信号中减去的一个或多个预测音调信号，并且结果是以正常方式使用，例如解码。自适应电路和一个或多个音调预测器形成前馈NBI预测器，其中接收信号作为自适应电路的输入信号提供。减法的结果可以被提供给分片器的分片器，产生从接收信号中减去生成信号的分片信号可以用作输入信号，以实现反馈NBI预测器。

5. 发明申请

US20120013398A1 Adaptive Spectral Enhancement and Harmonic Separation 有权
标题翻译：自适应光谱增强与谐波分离
公开(公告)号：US20120013398A1
公开(公告)日：2012-01-19
申请号：US12952178
申请日：2010-11-22
申请人： Dariush Dabiri , Maged F. Barsoum
发明人： Dariush Dabiri , Maged F. Barsoum
IPC分类号： H03K5/1252
CPC分类号： H03H21/0021 , H03H21/0012
摘要： A circuit and method perform adaptive spectral enhancement at a frequency ω1 (also called “fundamental” frequency) on an input signal y which includes electromagnetic interference (EMI) at an unknown frequency, to generate a fundamental-enhanced signal φ1 (or its complement). The fundamental-enhanced signal φ1 (or complement) is thereafter used in a notching circuit (also called “fundamental notching” circuit) to generate a fundamental-notched signal y−φ1. The fundamental-notched signal y−φ1 is itself enhanced to generate a harmonic-enhanced signal φ2 that is used to notch the fundamental-notched signal y−φ1 again, in one or more additional notching circuits that are connected in series with the fundamental notching circuit. The result (“cascaded-harmonic-notched” signal) is relatively free of EMI noise (fundamental and harmonics), and is used as an error signal for an adaptation circuit that in turn identifies the fundamental frequency ω1. Use of a cascaded-harmonic-notched signal as the error signal improves speed of convergence of adaptation.
摘要翻译：电路和方法在包括未知频率的电磁干扰（EMI）的输入信号y上对频率ω1（也称为“基本”频率）执行自适应频谱增强，以产生基本增强信号＆phgr; 1（或其补充）。 1，然后在切口电路（也称为“基本陷波”电路）中使用基本增强的信号＆amp; 1（或补码）以产生基本缺口信号y-＆phgr; 1。基本缺陷信号y-＆phgr; 1本身被增强以产生用于在连接的一个或多个附加的开槽电路中再次陷入基本缺口信号y-＆phgr 1的谐波增强信号与基本的开槽电路串联。结果（“级联谐波陷波”信号）相对没有EMI噪声（基波和谐波），并被用作自适应电路的误差信号，自适应电路进而识别基频ω1。使用级联谐波陷波信号作为误差信号提高适应性收敛速度。

6. 发明授权

US08638892B2 Adaptive narrowband interference prediction circuit and method 有权
标题翻译：自适应窄带干扰预测电路及方法
公开(公告)号：US08638892B2
公开(公告)日：2014-01-28
申请号：US12952184
申请日：2010-11-22
申请人： Dariush Dabiri , Maged F. Barsoum
发明人： Dariush Dabiri , Maged F. Barsoum
IPC分类号： H04B1/10
CPC分类号： H03H21/0021 , H03H21/0012
摘要： An input signal that includes narrowband interference is spectrally enhanced by an adaptive circuit that supplies as output signal(s), portion(s) of NBI at one or more frequencies that change adaptively. The output signal(s) are used in one or more tone predictor(s) to generate, based on prior values of the NBI portion, one or more predicted tone signals that are subtracted from a received signal containing the NBI, and the result is used in the normal manner, e.g. decoded. The adaptive circuit and the one or more tone predictor(s), form a feed-forward NBI predictor wherein the received signal is supplied as the input signal of the adaptive circuit. The result of subtraction may be supplied to a slicer that slices the result, yielding a sliced signal which is subtracted from the received signal to generate a signal can be used as the input signal, to implement a feedback NBI predictor.
摘要翻译：包括窄带干扰的输入信号由自适应电路进行光谱增强，该自适应电路以自适应变化的一个或多个频率提供NBI的一部分或多个输出信号。在一个或多个音调预测器中使用输出信号以根据NBI部分的先前值生成从包含NBI的接收信号中减去的一个或多个预测音调信号，并且结果是以正常方式使用，例如解码。自适应电路和一个或多个音调预测器形成前馈NBI预测器，其中接收信号作为自适应电路的输入信号提供。减法的结果可以被提供给分片器的分片器，产生从接收信号中减去生成信号的分片信号可以用作输入信号，以实现反馈NBI预测器。

7. 发明授权

US08432983B2 Detection and estimation of narrowband interference by matrix multiplication 有权
公开(公告)号：US08432983B2
公开(公告)日：2013-04-30
申请号：US12952164
申请日：2010-11-22
申请人： Dariush Dabiri
发明人： Dariush Dabiri
IPC分类号： H04K1/10
CPC分类号： H04B3/46 , H04B17/345
摘要： One or more processing units are programmed to select from among M tones in a frequency domain representation of a signal, a set of tones including at least a strongest tone (relative to background noise) and a tone adjacent thereto. From among M complex numbers in the frequency domain representation of the signal, a set of complex numbers are identified and denoted as a vector Z, corresponding to the selected set of tones. Vector Z is then multiplied with each of M columns of a matrix G which is predetermined to identify a sub-resolution maxima in Z. The M products that result from the vector multiplication of Z and G are used to determine and store in memory at least one or both of: (A) a flag indicating presence or absence of narrowband interference in the signal; and (B) an estimate of a frequency of the narrowband interference.

8. 发明授权

US08234550B2 Efficient decoding 有权
标题翻译：高效解码
公开(公告)号：US08234550B2
公开(公告)日：2012-07-31
申请号：US12613627
申请日：2009-11-06
申请人： Dariush Dabiri , Nitin Barot
发明人： Dariush Dabiri , Nitin Barot
IPC分类号： H03M13/00 , H03M13/03
CPC分类号： H03M13/1137 , H03M13/1111 , H03M13/114 , H03M13/616
摘要： A decoder includes circuitry for generating bits representing received signals, and beliefs representing an associated reliability of each bit. A bit node computation block receives the bits and associated beliefs, and generates a plurality of bit node messages. A plurality of M serially-connected pipeline stages receive the bit node messages and after M decoding cycles, and generate a plurality of check node messages once per decoding cycle, wherein for each iteration cycle, each of the M serially-connected pipeline stages performs check node computations using all of J component codes, wherein each one of the M serially-connected pipeline stages performs check node computations once per decoding cycle using a single component code that is different that component codes used for all other of the M serially-connected pipeline stages, wherein J is at least as great as M, and wherein each iteration includes M decoding cycles.
摘要翻译：解码器包括用于产生表示接收信号的比特的电路，以及表示每个比特的相关可靠性的信念。比特节点计算块接收比特和相关联的信念，并且生成多个比特节点消息。多个M个串行连接的流水线级接收比特节点消息，并且在M个解码周期之后，并且每解码周期生成多个校验节点消息，其中对于每个迭代周期，每个M个串行连接的流水线级执行检查使用所有J个分量代码的节点计算，其中M个串行连接的流水线级中的每一个使用不同于用于所有其他M个串行连接的流水线的分量代码来执行每个解码周期一次的校验节点计算其中J至少与M一样大，并且其中每个迭代包括M个解码周期。

9. 发明申请

US20070211794A1 Tranceiver non-linearity cancellation 有权
标题翻译： Tranceiver非线性取消
公开(公告)号：US20070211794A1
公开(公告)日：2007-09-13
申请号：US11373928
申请日：2006-03-13
申请人： Dariush Dabiri , Jose Tellado , Sandeep Gupta
发明人： Dariush Dabiri , Jose Tellado , Sandeep Gupta
IPC分类号： H04L5/16 , H04B3/20
CPC分类号： H04L5/1423 , H04B3/23
摘要： Embodiments of a method and apparatus for reducing non-linear transmit signal components of a receive signal of a transceiver signal are disclosed. The method includes the transceiver simultaneously transmitting a transmit signal, and receiving the receive signal. A non-linear replica signal of non-linear transmission signal components that are created in the transceiver by a transmit signal DAC, and imposed onto the receive signal, is generated. The non-linear replica signal is subtracted from the received signal reducing the non-linear transmission signal components imposed onto the receive signal.
摘要翻译：公开了一种用于减少收发信机的接收信号的非线性发送信号分量的方法和装置的实施例。该方法包括收发机同时发送发送信号，并接收接收信号。产生通过发送信号DAC在收发器中产生且施加到接收信号上的非线性传输信号分量的非线性复制信号。从接收到的信号中减去非线性复制信号，减少施加在接收信号上的非线性传输信号分量。

10. 发明授权

US06741644B1 Pre-emphasis filter and method for ISI cancellation in low-pass channel applications 有权
标题翻译：低通道应用中的预加重滤波器和ISI消除方法
公开(公告)号：US06741644B1
公开(公告)日：2004-05-25
申请号：US09499194
申请日：2000-02-07
申请人： Hossein Dehghan , Ting-Yin Chen , Dariush Dabiri
发明人： Hossein Dehghan , Ting-Yin Chen , Dariush Dabiri
IPC分类号： H03H730
CPC分类号： H03H17/0294 , H03H21/0001 , H04L25/03878
摘要： A communications receiver and method are provided for receiving a transmitted signal from a transmission channel having a low-pass filter characteristic. The receiver includes a receiver input for coupling to the channel and a switched capacitor pre-emphasis filter coupled to the receiver input. An analog-to-digital (A/D) converter is coupled to an output of the pre-emphasis filter. An equalizer is coupled to an output of the analog-to-digital converter.
摘要翻译：提供了一种用于从具有低通滤波器特性的传输信道接收发射信号的通信接收机和方法。接收器包括用于耦合到通道的接收器输入端和耦合到接收器输入端的开关电容器预加重滤波器。模数（A / D）转换器耦合到预加重滤波器的输出端。均衡器耦合到模数转换器的输出端。

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