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1.发明申请ADAPTIVE SIGNAL EQUALIZER WITH ADAPTIVE ERROR TIMING AND PRECURSOR/POSTCURSOR CONFIGURATION CONTROL 有权具有自适应错误时序的自适应信号均衡器和前端/ POSTAURSOR配置控制公开(公告)号：US20070230557A1
公开(公告)日：2007-10-04
申请号：US11759720
申请日：2007-06-07
Applicant: Venugopal Balasubramonian , Jishnu Bhattacharjee , Edem Ibragimov , Debanjan Mukherjee , Abhijit Phanse , Abhijit Shanbhag , Qian Yu
Inventor： Venugopal Balasubramonian , Jishnu Bhattacharjee , Edem Ibragimov , Debanjan Mukherjee , Abhijit Phanse , Abhijit Shanbhag , Qian Yu
IPC: H03H7/40
CPC classification number: H04L25/03057 , H03H21/0012 , H03H2021/0096 , H04L7/0029 , H04L7/0062 , H04L7/0079 , H04L2025/0349 , H04L2025/03611
Abstract: An adaptive signal equalizer with a feedforward filter in which the feedback error signal and corresponding incoming data signal are dynamically aligned in time using signal interpolation, and further, to control the precursor/postcursor filter taps configuration, thereby producing more adaptive filter tap coefficient signals for significantly improved and robust signal equalization.
Abstract translation: 一种具有前馈滤波器的自适应信号均衡器，其中反馈误差信号和相应的输入数据信号在时间上使用信号插值动态对准，此外，控制前驱/后沿滤波器抽头配置，由此产生更多的自适应滤波器抽头系数信号， 显着改善和鲁棒的信号均衡。
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公开(公告)号：US20050271138A1
公开(公告)日：2005-12-08
申请号：US11186241
申请日：2005-07-21
Applicant: Qian Yu , Venugopal Balasubramonian , Jishnu Bhattacharjee , Debanjan Mukherjee , Abhijit Phanse , Abhijit Shanbhag , Edem Ibragimov , Fabian Giroud
Inventor： Qian Yu , Venugopal Balasubramonian , Jishnu Bhattacharjee , Debanjan Mukherjee , Abhijit Phanse , Abhijit Shanbhag , Edem Ibragimov , Fabian Giroud
CPC classification number: H04L7/0062 , H04L7/0029 , H04L25/03057 , H04L2025/03503
Abstract: An apparatus and method for adaptively introducing a compensating signal latency related to a signal latency of a data symbol decision circuit. Adaptive timing control circuitry, including an interpolating mixer implemented as a tapped delay line with correlated tap coefficients, introduces a latency adaptively and substantially matching the latency of the data decision circuit for use within an adaptive equalizer, thereby minimizing the mean-squared error of such decision circuit. This adaptive latency is used in generating the feedback error signal which, in turn, can be used by the feedforward equalizer for dynamically adjusting its adaptive filter tap coefficients.
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3.发明授权Method for robust and stable convergence of blind LMS based adaptation of coefficients for a continuous time FFE-DFE 有权用于连续时间FFE-DFE的基于LMS的盲系数适应系数的稳健和稳定收敛的方法公开(公告)号：US07421022B2
公开(公告)日：2008-09-02
申请号：US11115506
申请日：2005-04-27
Applicant: Prashant Choudhary , Venugopal Balasubramonian , Jishnu Bhattacharjee , Debanjan Mukherjee , Abhijit Phanse , Abhijit Shanbhag , Qian Yu
Inventor： Prashant Choudhary , Venugopal Balasubramonian , Jishnu Bhattacharjee , Debanjan Mukherjee , Abhijit Phanse , Abhijit Shanbhag , Qian Yu
CPC classification number: H04L25/0307 , H04L2025/03598
Abstract: A continuous time electronic dispersion compensation architecture using feed forward equalization and a non-linear decision feedback equalization forms an output signal by a linear combination of successively delayed versions of the input signal and the sliced output signal weighted by appropriate coefficients. A selected number of taps in the mixer used to generate a corresponding number of coefficients for use in the feed forward equalizer are held to a selected voltage to ensure that the coefficients associated with these two taps do not drift. This causes the other coefficients to converge to a unique minimum square error value. In one embodiment the selected voltage is the maximum system voltage.
Abstract translation: 使用前馈均衡和非线性判决反馈均衡的连续时间电子色散补偿架构通过输入信号的连续延迟版本和由适当系数加权的分片输出信号的线性组合形成输出信号。 用于产生用于前馈均衡器的相应数量的系数的混频器中的选定数量的抽头被保持到所选择的电压，以确保与这两个抽头相关联的系数不漂移。 这导致其他系数收敛到唯一的最小平方误差值。 在一个实施例中，所选择的电压是最大系统电压。
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4.发明授权Adaptive signal equalizer with adaptive error timing and precursor/postcursor configuration control 有权自适应信号均衡器，具有自适应误差定时和前置/后端配置控制公开(公告)号：US07421021B2
公开(公告)日：2008-09-02
申请号：US11759720
申请日：2007-06-07
Applicant: Venugopal Balasubramonian , Jishnu Bhattacharjee , Edem Ibragimov , Debanjan Mukherjee , Abhijit Phanse , Abhijit Shanbhag , Qian Yu
Inventor： Venugopal Balasubramonian , Jishnu Bhattacharjee , Edem Ibragimov , Debanjan Mukherjee , Abhijit Phanse , Abhijit Shanbhag , Qian Yu
CPC classification number: H04L25/03057 , H03H21/0012 , H03H2021/0096 , H04L7/0029 , H04L7/0062 , H04L7/0079 , H04L2025/0349 , H04L2025/03611
Abstract: An adaptive signal equalizer with a feedforward filter in which the feedback error signal and corresponding incoming data signal are dynamically aligned in time using signal interpolation, and further, to control the precursor/postcursor filter taps configuration, thereby producing more adaptive filter tap coefficient signals for significantly improved and robust signal equalization.
Abstract translation: 一种具有前馈滤波器的自适应信号均衡器，其中反馈误差信号和相应的输入数据信号在时间上使用信号插值动态对准，此外，控制前驱/后沿滤波器抽头配置，由此产生更多的自适应滤波器抽头系数信号， 显着改善和鲁棒的信号均衡。
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5.发明授权Adaptive coefficient signal generator for adaptive signal equalizers with fractionally-spaced feedback 有权用于具有分数间隔反馈的自适应信号均衡器的自适应系数信号发生器公开(公告)号：US07203233B2
公开(公告)日：2007-04-10
申请号：US11284391
申请日：2005-11-21
Applicant: Abhijit Shanbhag , Qian Yu , Abhijit Phanse , Jishnu Bhattacharjee , Debanjan Mukherjee , Fabian Giroud , Venugopal Balasubramonian
Inventor： Abhijit Shanbhag , Qian Yu , Abhijit Phanse , Jishnu Bhattacharjee , Debanjan Mukherjee , Fabian Giroud , Venugopal Balasubramonian
CPC classification number: H04L25/03063 , H03H21/0012 , H03H2021/0096 , H04L25/0307 , H04L2025/0349 , H04L2025/03509 , H04L2025/03611
Abstract: An adaptive coefficient signal generator for use in an adaptive signal equalizer with fractionally-spaced feedback. The signals representing the feedback tap coefficients are generated in conjunction with a timing interpolation parameter such that the fractionally-spaced feedback circuitry dynamically emulates symbol-spaced feedback circuitry.
Abstract translation: 一种用于具有分数间隔反馈的自适应信号均衡器中的自适应系数信号发生器。 代表反馈抽头系数的信号与定时内插参数一起产生，使得分数间隔的反馈电路动态地仿真符号间隔反馈电路。
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Patent Agency Ranking
6.发明申请Method for robust and stable convergence of blind LMS based adaptation of coefficients for a continuous time FFE-DFE 有权用于连续时间FFE-DFE的基于LMS的盲系数适应系数的稳健和稳定收敛的方法公开(公告)号：US20060245486A1
公开(公告)日：2006-11-02
申请号：US11115506
申请日：2005-04-27
Applicant: Prashant Choudhary , Venugopal Balasubramonian , Jishnu Bhattacharjee , Debanjan Mukherjee , Abhijit Phanse , Abhijit Shanbhag , Qian Yu
Inventor： Prashant Choudhary , Venugopal Balasubramonian , Jishnu Bhattacharjee , Debanjan Mukherjee , Abhijit Phanse , Abhijit Shanbhag , Qian Yu
IPC: H03H7/30
CPC classification number: H04L25/0307 , H04L2025/03598
Abstract: A continuous time electronic dispersion compensation architecture using feed forward equalization and a non-linear decision feedback equalization forms an output signal by a linear combination of successively delayed versions of the input signal and the sliced output signal weighted by appropriate coefficients. A selected number of taps in the mixer used to generate a corresponding number of coefficients for use in the feed forward equalizer are held to a selected voltage to ensure that the coefficients associated with these two taps do not drift. This causes the other coefficients to converge to a unique minimum square error value. In one embodiment the selected voltage is the maximum system voltage.
Abstract translation: 使用前馈均衡和非线性判决反馈均衡的连续时间电子色散补偿架构通过输入信号的连续延迟版本和由适当系数加权的分片输出信号的线性组合形成输出信号。 用于产生用于前馈均衡器的相应数量的系数的混频器中的选定数量的抽头被保持到所选择的电压，以确保与这两个抽头相关联的系数不漂移。 这导致其他系数收敛到唯一的最小平方误差值。 在一个实施例中，所选择的电压是最大系统电压。
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7.发明申请公开(公告)号：US20070064845A1
公开(公告)日：2007-03-22
申请号：US11553019
申请日：2006-10-26
Applicant: Abhijit Phanse , Abhijit Shanbhag
Inventor： Abhijit Phanse , Abhijit Shanbhag
IPC: H04B1/10
CPC classification number: H04L25/03057 , H04B10/6971 , H04L25/03038 , H04L25/03878 , H04L2025/03624 , H04L2025/03656 , H04L2025/037
Abstract: A compensation circuit and method for reducing ISI products within an electrical data signal corresponding to a detected data signal received via a signal transmission medium introduces distinct compensation effects for individual ISI products within the electrical data signal. Distinct data signal components within the detected data signal and corresponding to such ISI products can be selectively and individually compensated, thereby producing a compensated data signal in which each selected one of such individual data signal components is substantially removed. Individual data signal components or selected combinations of data signal components can be compensated as desired.
Abstract translation: 用于减少与通过信号传输介质接收的检测数据信号相对应的电数据信号内的ISI产品的补偿电路和方法对电数据信号内的各个ISI产品引入不同的补偿效果。 检测到的数据信号中对应于这种ISI产品的不同数据信号分量可以被选择性和单独地补偿，从而产生补偿数据信号，其中基本上去除了这些单个数据信号分量中的每一个。 可以根据需要补偿单个数据信号分量或数据信号分量的选定组合。
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公开(公告)号：US20060104342A1
公开(公告)日：2006-05-18
申请号：US11284391
申请日：2005-11-21
Applicant: Abhijit Shanbhag , Qian Yu , Abhijit Phanse , Jishnu Bhattacharjee , Debanjan Mukherjee , Fabian Giroud , Venugopal Balasubramonian
Inventor： Abhijit Shanbhag , Qian Yu , Abhijit Phanse , Jishnu Bhattacharjee , Debanjan Mukherjee , Fabian Giroud , Venugopal Balasubramonian
IPC: H03H7/30
CPC classification number: H04L25/03063 , H03H21/0012 , H03H2021/0096 , H04L25/0307 , H04L2025/0349 , H04L2025/03509 , H04L2025/03611
Abstract: An adaptive coefficient signal generator for use in an adaptive signal equalizer with fractionally-spaced feedback. The signals representing the feedback tap coefficients are generated in conjunction with a timing interpolation parameter such that the fractionally-spaced feedback circuitry dynamically emulates symbol-spaced feedback circuitry.
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9.发明授权Adaptive signal equalizer with adaptive error timing and precursor/postcursor configuration control 有权自适应信号均衡器，具有自适应误差定时和前置/后端配置控制公开(公告)号：US07266145B2
公开(公告)日：2007-09-04
申请号：US10321876
申请日：2002-12-17
Applicant: Venugopal Balasubramonian , Jishnu Bhattacharjee , Edem Ibragimov , Debanjan Mukherjee , Abhijit Phanse , Abhijit G. Shanbhag , Qian Yu
Inventor： Venugopal Balasubramonian , Jishnu Bhattacharjee , Edem Ibragimov , Debanjan Mukherjee , Abhijit Phanse , Abhijit G. Shanbhag , Qian Yu
CPC classification number: H04L25/03057 , H03H21/0012 , H03H2021/0096 , H04L7/0029 , H04L7/0062 , H04L7/0079 , H04L2025/0349 , H04L2025/03611
Abstract: An adaptive signal equalizer with a feedforward filter in which the feedback error signal and corresponding incoming data signal are dynamically aligned in time using signal interpolation, and further, to control the precursor/postcursor filter taps configuration, thereby producing more adaptive filter tap coefficient signals for significantly improved and robust signal equalization.
Abstract translation: 一种具有前馈滤波器的自适应信号均衡器，其中反馈误差信号和相应的输入数据信号在时间上使用信号插值动态对准，此外，控制前驱/后沿滤波器抽头配置，由此产生更多的自适应滤波器抽头系数信号， 显着改善和鲁棒的信号均衡。
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公开(公告)号：US06952132B2
公开(公告)日：2005-10-04
申请号：US10724444
申请日：2003-11-26
Applicant: Jishnu Bhattacharjee , Debanjan Mukherjee , Abhijit Phanse
Inventor： Jishnu Bhattacharjee , Debanjan Mukherjee , Abhijit Phanse
Abstract: Systems and methods provide automatic gain control, such as by employing analog and digital techniques. For example, overall gain may be controlled through coarse and fine control signals provided to gain stages, with the overall gain monitored via a power detector circuit.
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