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公开(公告)号：US09300444B2
公开(公告)日：2016-03-29
申请号：US13951341
申请日：2013-07-25
Applicant: ANALOG DEVICES, INC
Inventor： Raju Hormis , Steven R. Bal , Kevin Glenn Gard , Jianxun Fan , David J. McLaurin , Antonio Montalvo
CPC classification number: H04L1/243 , H03F3/245 , H03F3/45475 , H03F2200/336 , H03F2203/45512 , H04B17/14 , H04B17/17 , H04B17/18 , H04B17/21 , H04L27/364 , H04L27/366
Abstract: A transmission module is provided that includes a transmitter, a loopback receiver, and a QEC controller. In a first state, the QEC controller calibrates the loopback receiver to remove quadrature imbalance in the loopback receiver. In a second state, a communication pathway is provided between the transmitter and the loopback receiver, and the QEC controller identifies quadrature imbalance in the transmitter based at least one a comparison of the data signals at the output of the loopback receiver with data signals at the input of the transmitter. Based on the comparison, the QEC controller can adjust one or more characteristics of the transmitter to correct quadrature errors in the transmitter.
Abstract translation: 提供了一种传输模块，其包括发射机，环回接收机和QEC控制器。 在第一种状态下，QEC控制器校准环回接收机以消除环回接收机中的正交不平衡。 在第二状态下，在发射机和环回接收机之间提供通信路径，并且QEC控制器基于环回接收机的输出端的数据信号与数据信号的比较， 发射机的输入。 基于比较，QEC控制器可以调整发射机的一个或多个特性来校正发射机的正交误差。
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公开(公告)号：US20150030102A1
公开(公告)日：2015-01-29
申请号：US13951341
申请日：2013-07-25
Applicant: Analog Devices, Inc.
Inventor： Raju Hormis , Steven R. Bal , Kevin Glenn Gard , Jianxun Fan , David J. McLaurin , Antonio Montalvo
CPC classification number: H04L1/243 , H03F3/245 , H03F3/45475 , H03F2200/336 , H03F2203/45512 , H04B17/14 , H04B17/17 , H04B17/18 , H04B17/21 , H04L27/364 , H04L27/366
Abstract: A transmission module is provided that includes a transmitter, a loopback receiver, and a QEC controller. In a first state, the QEC controller calibrates the loopback receiver to remove quadrature imbalance in the loopback receiver. In a second state, a communication pathway is provided between the transmitter and the loopback receiver, and the QEC controller identifies quadrature imbalance in the transmitter based at least one a comparison of the data signals at the output of the loopback receiver with data signals at the input of the transmitter. Based on the comparison, the QEC controller can adjust one or more characteristics of the transmitter to correct quadrature errors in the transmitter.
Abstract translation: 提供了一种传输模块，其包括发射机，环回接收机和QEC控制器。 在第一种状态下，QEC控制器校准环回接收机以消除环回接收机中的正交不平衡。 在第二状态下，在发射机和环回接收机之间提供通信路径，并且QEC控制器基于环回接收机的输出端的数据信号与数据信号的比较， 发射机的输入。 基于比较，QEC控制器可以调整发射机的一个或多个特性来校正发射机的正交误差。
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公开(公告)号：US11012201B2
公开(公告)日：2021-05-18
申请号：US14340461
申请日：2014-07-24
Applicant: Analog Devices, Inc.
Inventor： Raju Hormis , Steven R. Bal , Antonio Montalvo , David J. McLaurin , Martin McCormick
Abstract: A transmission module is provided that includes a transmitter, a loopback receiver, and a QEC controller. The QEC controller identifies quadrature imbalance in the transmitter based at least one a comparison of the data signals at the output of the loopback receiver with data signals at the input of the transmitter. Based on the comparison, the QEC controller can adjust one or more characteristics of the transmitter to correct quadrature errors in the transmitter.
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公开(公告)号：US20150030103A1
公开(公告)日：2015-01-29
申请号：US14340461
申请日：2014-07-24
Applicant: Analog Devices, Inc.
Inventor： Raju Hormis , Steven R. Bal , Antonio Montalvo , David J. McLaurin , Martin McCormick
Abstract: A transmission module is provided that includes a transmitter, a loopback receiver, and a QEC controller. The QEC controller identifies quadrature imbalance in the transmitter based at least one a comparison of the data signals at the output of the loopback receiver with data signals at the input of the transmitter. Based on the comparison, the QEC controller can adjust one or more characteristics of the transmitter to correct quadrature errors in the transmitter.
Abstract translation: 提供了一种传输模块，其包括发射机，环回接收机和QEC控制器。 QEC控制器通过至少一个环回接收机输出端的数据信号与发射机输入端的数据信号进行比较，来识别发射机的正交不平衡。 基于比较，QEC控制器可以调整发射机的一个或多个特性来校正发射机的正交误差。
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