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1. 发明申请

US20080049847A1 ELECTRONIC DISPERSION COMPENSATION UTILIZING INTERLEAVED ARCHITECTURE AND CHANNEL IDENTIFICATION FOR ASSISTING TIMING RECOVERY 有权
标题翻译：电子分散补偿利用交互式架构和通道识别来辅助时序恢复
公开(公告)号：US20080049847A1
公开(公告)日：2008-02-28
申请号：US11837278
申请日：2007-08-10
申请人： Vivek Telang , Vasudevan Parthasarathy , Sudeep Bhoja , Hong Chen , Afshin Momtaz , Chung-Jue Chen , Ali Ghiasi , Michael Furlong , Lorenzo Longo
发明人： Vivek Telang , Vasudevan Parthasarathy , Sudeep Bhoja , Hong Chen , Afshin Momtaz , Chung-Jue Chen , Ali Ghiasi , Michael Furlong , Lorenzo Longo
IPC分类号： H04B14/04
CPC分类号： H04L25/03063 , H04B10/25133 , H04B10/697 , H04L7/0087 , H04L7/033 , H04L25/0307 , H04L2025/03356 , H04L2025/0349 , H04L2025/03509
摘要： Embodiments include a system for performing dispersion compensation on an electromagnetic signal received over a communication channel, the electromagnetic signal bearing information at a symbol rate. An interleaved analog to digital converter (“ADC”) block may be used, wherein the interleaved ADC block may be configured to generate a plurality of digitally sampled signals from the electromagnetic signal. An interleaved equalizer block may be configured to digitally process each of the digitally sampled signals generated by the ADC block to generate a plurality of digitally equalized signals. A multiplexer may be configured to aggregate the digitally equalized signals into a composite output signal.
摘要翻译：实施例包括一种用于对通过通信信道接收的电磁信号进行色散补偿的系统，该电磁信号以符号速率承载信息。可以使用交错模数转换器（“ADC”）块，其中交织的ADC块可以被配置为从电磁信号生成多个数字采样的信号。交织的均衡器块可以被配置为数字地处理由ADC块产生的数字采样信号中的每一个以产生多个数字均衡的信号。多路复用器可以被配置为将数字均衡的信号聚合成复合输出信号。

2. 发明授权

US07961781B2 Electronic dispersion compensation utilizing interleaved architecture and channel identification for assisting timing recovery 有权
标题翻译：电子色散补偿利用交织架构和信道识别来协助定时恢复
公开(公告)号：US07961781B2
公开(公告)日：2011-06-14
申请号：US11837278
申请日：2007-08-10
申请人： Vivek Telang , Vasudevan Parthasarathy , Sudeep Bhoja , Hong Chen , Afshin Momtaz , Chung-Jue Chen , Ali Ghiasi , Michael Furlong , Lorenzo Longo
发明人： Vivek Telang , Vasudevan Parthasarathy , Sudeep Bhoja , Hong Chen , Afshin Momtaz , Chung-Jue Chen , Ali Ghiasi , Michael Furlong , Lorenzo Longo
IPC分类号： H03H7/30
CPC分类号： H04L25/03063 , H04B10/25133 , H04B10/697 , H04L7/0087 , H04L7/033 , H04L25/0307 , H04L2025/03356 , H04L2025/0349 , H04L2025/03509
摘要： Embodiments include a system for performing dispersion compensation on an electromagnetic signal received over a communication channel, the electromagnetic signal bearing information at a symbol rate. An interleaved analog to digital converter (“ADC”) block may be used, wherein the interleaved ADC block may be configured to generate a plurality of digitally sampled signals from the electromagnetic signal. An interleaved equalizer block may be configured to digitally process each of the digitally sampled signals generated by the ADC block to generate a plurality of digitally equalized signals. A multiplexer may be configured to aggregate the digitally equalized signals into a composite output signal.
摘要翻译：实施例包括一种用于对通过通信信道接收的电磁信号进行色散补偿的系统，该电磁信号以符号速率承载信息。可以使用交错模数转换器（“ADC”）块，其中交织的ADC块可以被配置为从电磁信号生成多个数字采样的信号。交织的均衡器块可以被配置为数字地处理由ADC块产生的数字采样信号中的每一个以产生多个数字均衡的信号。多路复用器可以被配置为将数字均衡的信号聚合成复合输出信号。

3. 发明授权

US08442159B2 Multi-protocol communications receiver with shared analog front-end 有权
公开(公告)号：US08442159B2
公开(公告)日：2013-05-14
申请号：US12883842
申请日：2010-09-16
申请人： Vivek Telang , Hong Chen , Vasudevan Parthasarathy , Jun Cao , Afshin Momtaz , Ali Ghiasi , Chung-Jue Chen
发明人： Vivek Telang , Hong Chen , Vasudevan Parthasarathy , Jun Cao , Afshin Momtaz , Ali Ghiasi , Chung-Jue Chen
IPC分类号： H04L27/06 , H03D1/00
CPC分类号： H04L27/0002 , H04B1/0007 , H04B1/406
摘要： According to an example embodiment, a communications receiver may include a variable gain amplifier (VGA) configured to amplify received signals, a VGA controller configured to control the VGA, a plurality of analog to digital converter (ADC) circuits coupled to an output of the VGA, wherein the plurality of ADC circuits are operational when the communications receiver is configured to process signals of a first communications protocol, and wherein only a subset of the ADC circuits are operational when the communications receiver is configured to process signals of a second communications protocol.

4. 发明申请

US20120002713A1 MULTI-PROTOCOL COMMUNICATIONS RECEIVER WITH SHARED ANALOG FRONT-END 有权
标题翻译：多协议通信采用共享模拟前端
公开(公告)号：US20120002713A1
公开(公告)日：2012-01-05
申请号：US12883842
申请日：2010-09-16
申请人： Vivek Telang , Hong Chen , Vasudevan Parthasarathy , Jun Cao , Afshin Momtaz , Ali Ghiasi , Chung-Jue Chen
发明人： Vivek Telang , Hong Chen , Vasudevan Parthasarathy , Jun Cao , Afshin Momtaz , Ali Ghiasi , Chung-Jue Chen
IPC分类号： H04L27/08 , H04L27/06 , H04L27/01
CPC分类号： H04L27/0002 , H04B1/0007 , H04B1/406
摘要： According to an example embodiment, a communications receiver may include a variable gain amplifier (VGA) configured to amplify received signals, a VGA controller configured to control the VGA, a plurality of analog to digital converter (ADC) circuits coupled to an output of the VGA, wherein the plurality of ADC circuits are operational when the communications receiver is configured to process signals of a first communications protocol, and wherein only a subset of the ADC circuits are operational when the communications receiver is configured to process signals of a second communications protocol.
摘要翻译：根据示例性实施例，通信接收机可以包括被配置为放大接收信号的可变增益放大器（VGA），被配置为控制VGA的VGA控制器，耦合到所述接收信号的输出的多个模数转换器 VGA，其中当所述通信接收器被配置为处理第一通信协议的信号时，所述多个ADC电路是可操作的，并且其中当所述通信接收器被配置为处理第二通信协议的信号时，只有所述ADC电路的子集可操作。

5. 发明申请

US20060251195A1 State based algorithm to minimize mean squared error 失效
标题翻译：基于状态的算法来最小化均方误差
公开(公告)号：US20060251195A1
公开(公告)日：2006-11-09
申请号：US11124598
申请日：2005-05-05
申请人： Chung-Jue Chen , Vasudevan Parthasarathy , Afshin Momtaz , Hong Chen
发明人： Chung-Jue Chen , Vasudevan Parthasarathy , Afshin Momtaz , Hong Chen
IPC分类号： H04B1/10
CPC分类号： H04L25/03057 , H04L2025/03687
摘要： Data error such as mean square error may be reduced in a system such as a communication receiver using a dithering algorithm that adjusts one or more parameters in the system. The dithering algorithm may be applied to more than one parameter. The dithering algorithm may include a state machine to alter the rate of change dependent on the state of the dithering algorithm.
摘要翻译：在诸如使用调整系统中的一个或多个参数的抖动算法的通信接收机的系统中，诸如均方误差之类的数据误差可能会降低。抖动算法可以应用于多个参数。抖动算法可以包括状态机来改变取决于抖动算法的状态的变化率。

6. 发明申请

US20070110199A1 Receive equalizer with adaptive loops 审中-公开
标题翻译：接收带有自适应环路的均衡器
公开(公告)号：US20070110199A1
公开(公告)日：2007-05-17
申请号：US11292610
申请日：2005-12-02
申请人： Afshin Momtaz , Chung-Jue Chen , Hong Chen , Vasudevan Parthasarathy , Rajesh Satapathy
发明人： Afshin Momtaz , Chung-Jue Chen , Hong Chen , Vasudevan Parthasarathy , Rajesh Satapathy
IPC分类号： H04B1/10 , H04L7/00
CPC分类号： H04L7/0331 , H04L7/0004 , H04L7/0054 , H04L25/03057 , H04L2025/0349 , H04L2025/03617
摘要： A communication receiver includes a decision feedback equalizer and clock and data recovery circuit. Various adaptation loops may control the operation of the decision feedback equalizer, the clock and data recovery circuit, a continuous time filter, a threshold adjust circuit, and an analog-to-digital clock that is used to generate soft decision data for some of the adaptation loops.
摘要翻译：通信接收机包括判决反馈均衡器和时钟和数据恢复电路。各种适应环路可以控制判决反馈均衡器，时钟和数据恢复电路，连续时间滤波器，阈值调整电路和用于产生一些软判决数据的模拟 - 数字时钟的操作适应循环。

7. 发明授权

US07702053B2 State based algorithm to minimize mean squared error 失效
标题翻译：基于状态的算法来最小化均方误差
公开(公告)号：US07702053B2
公开(公告)日：2010-04-20
申请号：US11124598
申请日：2005-05-05
申请人： Chung-Jue Chen , Vasudevan Parthasarathy , Afshin Momtaz , Hong Chen
发明人： Chung-Jue Chen , Vasudevan Parthasarathy , Afshin Momtaz , Hong Chen
IPC分类号： H04B1/10
CPC分类号： H04L25/03057 , H04L2025/03687
摘要： Data error such as mean square error may be reduced in a system such as a communication receiver using a dithering algorithm that adjusts one or more parameters in the system. The dithering algorithm may be applied to more than one parameter. The dithering algorithm may include a state machine to alter the rate of change dependent on the state of the dithering algorithm.
摘要翻译：在诸如使用调整系统中的一个或多个参数的抖动算法的通信接收机的系统中，诸如均方误差之类的数据误差可能会降低。抖动算法可以应用于多个参数。抖动算法可以包括状态机来改变取决于抖动算法的状态的变化率。

8. 发明授权

US07830987B2 Electronic dispersion compensation utilizing interleaved architecture and channel identification for assisting timing recovery 失效
标题翻译：电子色散补偿利用交织架构和信道识别来协助定时恢复
公开(公告)号：US07830987B2
公开(公告)日：2010-11-09
申请号：US11837301
申请日：2007-08-10
申请人： Sudeep Bhoja , Vasudevan Parthasarathy , Vivek Telang
发明人： Sudeep Bhoja , Vasudevan Parthasarathy , Vivek Telang
IPC分类号： H04L27/14
CPC分类号： H04L7/0062
摘要： Embodiments include a system for performing electronic dispersion compensation on an information-bearing signal transmitted over a communication channel. The system may include a channel identification module configured to receive a first digitized version of the information bearing signal and an equalized version of the information-bearing signal, and may be configured to determine an impulse response of the communication channel based thereon. The system may include a time varying phase detector configured to receive the equalized version of the information bearing signal, a second digitized version of the information-bearing signal, and the impulse response, and may be further configured to generate a reference wave based on the impulse response and the equalized version of the information-bearing signal. The time varying phase detector may be configured to generate a phase signal based on the reference wave and on an error signal determined from the reference wave and the second digitized version of the information-bearing signal.
摘要翻译：实施例包括用于对通过通信信道发送的信息承载信号执行电子色散补偿的系统。系统可以包括信道识别模块，其被配置为接收信息承载信号的第一数字化版本和信息承载信号的均衡版本，并且可以被配置为基于该信道识别模块来确定通信信道的脉冲响应。系统可以包括时变相位检测器，其被配置为接收信息承载信号的均衡版本，信息承载信号的第二数字化版本和脉冲响应，并且还可以被配置为基于脉冲响应和信息承载信号的均衡版本。时变相位检测器可以被配置为基于参考波和从信息承载信号的参考波和第二数字化版本确定的误差信号来生成相位信号。

9. 发明申请

US20080069199A1 NON-LINEAR DECISION FEEDBACK EQUALIZER 有权
标题翻译：非线性决策反馈均衡器
公开(公告)号：US20080069199A1
公开(公告)日：2008-03-20
申请号：US11845779
申请日：2007-08-27
申请人： Chung-Jue Chen , Vasudevan Parthasarathy , Sudeep Bhoja
发明人： Chung-Jue Chen , Vasudevan Parthasarathy , Sudeep Bhoja
IPC分类号： H03H7/30
CPC分类号： H04L25/061 , H04L25/03057 , H04L2025/03547
摘要： Embodiments include a decision feedback equalizer (DFE) that includes a first comparator configured to receive as inputs a soft value and a first threshold, a second comparator configured to receive as inputs the soft value and a second threshold, a selector configured to select an output of either the first comparator or the second comparator as a DFE output based on one or more previous bits output by the selector; an error calculator configured to determine an error for the first comparator and the second comparator, and a threshold adjuster configured to adjust the first threshold and the second threshold, the first threshold and the second threshold each being a non-linear combination of one or more previous outputs of the selector.
摘要翻译：实施例包括判决反馈均衡器（DFE），其包括被配置为接收软值和第一阈值作为输入的第一比较器，被配置为接收软值和第二阈值作为输入的第二比较器，被配置为选择输出基于由选择器输出的一个或多个以前的位，作为DFE输出的第一比较器或第二比较器; 配置为确定第一比较器和第二比较器的误差的误差计算器以及被配置为调整第一阈值和第二阈值的阈值调整器，第一阈值和第二阈值各自是一个或多个的非线性组合选择器的先前输出。

10. 发明申请

US20080187082A1 ELECTRONIC DISPERSION COMPENSATION UTILIZING INTERLEAVED ARCHITECTURE AND CHANNEL IDENTIFICATION FOR ASSISTING TIMING RECOVERY 失效
标题翻译：电子分散补偿利用交互式架构和通道识别来辅助时序恢复
公开(公告)号：US20080187082A1
公开(公告)日：2008-08-07
申请号：US11837301
申请日：2007-08-10
申请人： Sudeep Bhoja , Vasudevan Parthasarathy , Vivek Telang
发明人： Sudeep Bhoja , Vasudevan Parthasarathy , Vivek Telang
IPC分类号： H04L7/00 , H04L25/00 , H04L25/40
CPC分类号： H04L7/0062
摘要： Embodiments include a system for performing electronic dispersion compensation on an information-bearing signal transmitted over a communication channel. The system may include a channel identification module configured to receive a first digitized version of the information bearing signal and an equalized version of the information-bearing signal, and may be configured to determine an impulse response of the communication channel based thereon. The system may include a time varying phase detector configured to receive the equalized version of the information bearing signal, a second digitized version of the information-bearing signal, and the impulse response, and may be further configured to generate a reference wave based on the impulse response and the equalized version of the information-bearing signal. The time varying phase detector may be configured to generate a phase signal based on the reference wave and on an error signal determined from the reference wave and the second digitized version of the information-bearing signal.
摘要翻译：实施例包括用于对通过通信信道发送的信息承载信号执行电子色散补偿的系统。系统可以包括信道识别模块，其被配置为接收信息承载信号的第一数字化版本和信息承载信号的均衡版本，并且可以被配置为基于该信道识别模块来确定通信信道的脉冲响应。系统可以包括时变相位检测器，其被配置为接收信息承载信号的均衡版本，信息承载信号的第二数字化版本和脉冲响应，并且还可以被配置为基于脉冲响应和信息承载信号的均衡版本。时变相位检测器可以被配置为基于参考波和从信息承载信号的参考波和第二数字化版本确定的误差信号来生成相位信号。

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