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    • 22. 发明授权
      US08737549B2 Receiver having limiter-enhanced data eye openings 有权
    • Receiver having limiter-enhanced data eye openings
    • 接收机具有限制器增强的数据眼睛开口
    • US08737549B2
    • 2014-05-27
    • US13459871
    • 2012-04-30
    • Mohammad Mobin , Pervez Aziz , Ye Liu
    • Mohammad Mobin , Pervez Aziz , Ye Liu
    • H03K5/01
    • H04L25/03057 , H04L7/10 , H04L25/03063 , H04L27/0002 , H04L2025/03636
    • A communication system having a receiver with a linear path and a nonlinear path. As the receiver receives a data signal, it adaptively equalizes the received signal, and amplitude-limits the equalized signal in the nonlinear path using a saturable amplifier limiter or the like. A slicer extracts data from the limited equalized received signal. In the linear path, a clock recovery circuit generates a clock signal from the equalized received signal. A delay circuit in the linear path at least partially compensates for propagation delay in the limiter. Having the clock recovery occur in other than the nonlinear path, a low jitter clock is generated. The limiter enhances the vertical opening of the data eye by increasing the rise and fall times of the limited signal, providing more noise margin for the slicer to operate with and a greater timing margin in which to sample the sliced data.
    • 一种具有线性路径和非线性路径的接收机的通信系统。 随着接收机接收数据信号，它自适应地均衡接收信号，并且使用可饱和放大器限幅器等对非线性路径中的均衡信号进行幅度限幅。 限幅器从有限的均衡接收信号中提取数据。 在线性路径中，时钟恢复电路从均衡的接收信号产生时钟信号。 线性路径中的延迟电路至少部分地补偿限幅器中的传播延迟。 在非线性路径之外发生时钟恢复，产生低抖动时钟。 限幅器通过增加受限信号的上升和下降时间来增强数据眼睛的垂直开度，为切片机操作提供更多的噪声容限，并在其中对切片数据进行采样提供更大的定时余量。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
    • 23. 发明授权
      US08687682B2 Transmitter adaptation loop using adjustable gain and convergence detection 有权
    • Transmitter adaptation loop using adjustable gain and convergence detection
    • 使用可调增益和收敛检测的发射机适配环路
    • US08687682B2
    • 2014-04-01
    • US13360978
    • 2012-01-30
    • Mohammad Mobin , Amaresh Malipatil , Adam Healey , Ye Liu
    • Mohammad Mobin , Amaresh Malipatil , Adam Healey , Ye Liu
    • H03K5/159 , H04B1/10
    • H04L12/6418
    • A communication port and method of adapting a transmit filter in the port to reduce receive errors by a receiver coupled to the transmit filter via a communication channel. The filter has coefficients that are adjusted in response to a first adaptation gain value, decision bits, and receiver error values. During a first time period, the coefficients are adjusted until changes in the coefficients are less than a first threshold amount. Then during a second time period, the coefficients are adjusted using a second adaptation gain value until changes in the coefficients are less than a second threshold amount. The second adaptation gain value is less than the first adaptation gain value and the second threshold amount being less than the first threshold amount. By using two or more adjustment periods with different gain values, the filter is adapted faster than using a single adjustment period with fixed adaptation gain.
    • 一种在端口中适配发射滤波器的通信端口和方法，用于通过通信信道减少接收器与发射滤波器的接收误差。 滤波器具有响应于第一自适应增益值，判定位和接收器误差值而被调整的系数。 在第一时间段期间，系数被调整直到系数的变化小于第一阈值量。 然后在第二时间段期间，使用第二自适应增益值来调整系数，直到系数的变化小于第二阈值量。 第二自适应增益值小于第一适应增益值，第二阈值量小于第一阈值量。 通过使用具有不同增益值的两个或更多个调整周期，滤波器比使用具有固定自适应增益的单个调整周期更适合。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
    • 24. 发明授权
      US08458546B2 Oversampled clock and data recovery with extended rate acquisition 有权
    • Oversampled clock and data recovery with extended rate acquisition
    • 超采样时钟和数据恢复，扩展速率采集
    • US08458546B2
    • 2013-06-04
    • US13106040
    • 2011-05-12
    • Mohammad Mobin , Matthew Tota , Gregory Winn
    • Mohammad Mobin , Matthew Tota , Gregory Winn
    • G06F11/00
    • H04L7/0337
    • In described embodiments, a transceiver supports two or more rates using an oversampling clock and data recovery (CDR) circuit sampling high rate data with a predetermined CDR sampling clock. A timing recovery circuit detects and accounts for extra or missing samples when oversampling lower rate data. An edge detector detects each actual data symbol edge and provides for an edge decision offset in a current instant's block of samples. An edge error is generated from the previous instant's actual and calculated edges; and an edge distance between actual edges of the current and previous instants is generated. Filtered edge distance and error are combined to generate a calculated edge position for the data symbol edge for the current instant. The edge decision offset is applied to the current calculated edge position to identify a sample value to generate a decision for the data symbol to detect the current data value.
    • 在所描述的实施例中，收发器支持使用过采样时钟和数据恢复（CDR）电路采用具有预定CDR采样时钟的高速率数据采样的两个或更多个速率。 定时恢复电路检测并考虑过采样较低速率数据时的额外或缺失样本。 边缘检测器检测每个实际数据符号边缘并提供当前时刻的样本块中的边缘判定偏移。 从前一时刻的实际和计算边缘产生边缘错误; 并且生成当前和前一时刻的实际边缘之间的边缘距离。 滤波边缘距离和误差被组合以产生用于当前时刻的数据符号边缘的计算边缘位置。 边缘判定偏移被应用于当前计算的边缘位置以识别采样值，以产生用于数据符号来检测当前数据值的决定。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
    • 26. 发明申请
      US20130287088A1 Receiver Having Limiter-Enhanced Data Eye Openings 有权
    • Receiver Having Limiter-Enhanced Data Eye Openings
    • 接收机具有限制增强数据眼图
    • US20130287088A1
    • 2013-10-31
    • US13459871
    • 2012-04-30
    • Mohammad Mobin , Pervez Aziz , Ye Liu
    • Mohammad Mobin , Pervez Aziz , Ye Liu
    • H04L27/01 , H04L27/06
    • H04L25/03057 , H04L7/10 , H04L25/03063 , H04L27/0002 , H04L2025/03636
    • A communication system having a receiver with a linear path and a nonlinear path. As the receiver receives a data signal, it adaptively equalizes the received signal, and amplitude-limits the equalized signal in the nonlinear path using a saturable amplifier limiter or the like. A slicer extracts data from the limited equalized received signal. In the linear path, a clock recovery circuit generates a clock signal from the equalized received signal. A delay circuit in the linear path at least partially compensates for propagation delay in the limiter. Having the clock recovery occur in other than the nonlinear path, a low jitter clock is generated. The limiter enhances the vertical opening of the data eye by increasing the rise and fall times of the limited signal, providing more noise margin for the slicer to operate with and a greater timing margin in which to sample the sliced data.
    • 一种具有线性路径和非线性路径的接收机的通信系统。 随着接收机接收数据信号，它自适应地均衡接收信号，并且使用可饱和放大器限幅器等对非线性路径中的均衡信号进行幅度限幅。 限幅器从有限的均衡接收信号中提取数据。 在线性路径中，时钟恢复电路从均衡的接收信号产生时钟信号。 线性路径中的延迟电路至少部分地补偿限幅器中的传播延迟。 在非线性路径之外发生时钟恢复，产生低抖动时钟。 限幅器通过增加受限信号的上升和下降时间来增强数据眼睛的垂直开度，为切片机操作提供更多的噪声容限以及更大的定时裕度来采样分片数据。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
    • 27. 发明申请
      US20130195154A1 Transmitter Adaptation Loop Using Adjustable Gain and Convergence Detection 有权
    • Transmitter Adaptation Loop Using Adjustable Gain and Convergence Detection
    • 使用可调节增益和收敛检测的发射机适配环路
    • US20130195154A1
    • 2013-08-01
    • US13360978
    • 2012-01-30
    • Mohammad Mobin , Amaresh Malipatil , Adam Healey , Ye Liu
    • Mohammad Mobin , Amaresh Malipatil , Adam Healey , Ye Liu
    • H04B1/38
    • H04L12/6418
    • A communication port and method of adapting a transmit filter in the port to reduce receive errors by a receiver coupled to the transmit filter via a communication channel. The filter has coefficients that are adjusted in response to a first adaptation gain value, decision bits, and receiver error values. During a first time period, the coefficients are adjusted until changes in the coefficients are less than a first threshold amount. Then during a second time period, the coefficients are adjusted using a second adaptation gain value until changes in the coefficients are less than a second threshold amount. The second adaptation gain value is less than the first adaptation gain value and the second threshold amount being less than the first threshold amount. By using two or more adjustment periods with different gain values, the filter is adapted faster than using a single adjustment period with fixed adaptation gain.
    • 一种在端口中适配发射滤波器的通信端口和方法，用于通过通信信道减少接收器与发射滤波器的接收误差。 滤波器具有响应于第一自适应增益值，判定位和接收器误差值而被调整的系数。 在第一时间段期间，系数被调整直到系数的变化小于第一阈值量。 然后在第二时间段期间，使用第二自适应增益值来调整系数，直到系数的变化小于第二阈值量。 第二自适应增益值小于第一适应增益值，第二阈值量小于第一阈值量。 通过使用具有不同增益值的两个或更多个调整周期，滤波器比使用具有固定自适应增益的单个调整周期更适合。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
    • 28. 发明申请
      US20120170621A1 DECOUPLING SAMPLING CLOCK AND ERROR CLOCK IN A DATA EYE 有权
    • DECOUPLING SAMPLING CLOCK AND ERROR CLOCK IN A DATA EYE
    • 在数据眼中解码采样时钟和错误时钟
    • US20120170621A1
    • 2012-07-05
    • US12968538
    • 2011-01-03
    • Paul Tracy , Mohammad Mobin , Ye Liu , Lane A. Smith
    • Paul Tracy , Mohammad Mobin , Ye Liu , Lane A. Smith
    • H04B1/38
    • H04L25/03038
    • In described embodiments, a transceiver includes an eye monitor, clock and data recovery, and adaptation modules. Data sampling clock phase and error clock phase determined from a data eye are decoupled in the transceiver during a sampling phase correction process. Decoupling these clock phases during the sampling phase correction process allows relative optimization of system equalization parameters without degradation of various adaptation algorithms. Such adaptation algorithms might be employed for received signal gain and equalization such as, for example, Decision Feedback Equalizer (DFE) adaptation. Deriving the data sampling clock and error clock phases from the same clock generation source and with independent clock control enables an iterative sampling phase correction process that allows for accelerated clock and data recovery (CDR) without disturbing the data eye shape.
    • 在所描述的实施例中，收发器包括眼睛监视器，时钟和数据恢复以及适配模块。 在采样相位校正过程中，从数据眼睛确定的数据采样时钟相位和误差时钟相位在收发器中解耦。 在采样相位校正过程中去耦合这些时钟相位允许系统均衡​​参数的相对优化，而不会降低各种自适应算法。 这样的适配算法可以用于接收信号增益和均衡，例如，判决反馈均衡器（DFE）适配。 从相同的时钟产生源和独立的时钟控制中获取数据采样时钟和错误时钟相位，可以实现迭代采样相位校正过程，可以在不影响数据眼睛形状的情况下加速时钟和数据恢复（CDR）。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
    • 29. 发明申请
      US20100331628A1 Wireless Monitoring and Control of Medical Devices 审中-公开
    • Wireless Monitoring and Control of Medical Devices
    • 医疗器械无线监控
    • US20100331628A1
    • 2010-12-30
    • US12493608
    • 2009-06-29
    • Sailesh Merchant , Kouros Azimi , Mohammad Mobin
    • Sailesh Merchant , Kouros Azimi , Mohammad Mobin
    • A61B5/00 , G08B23/00
    • A61B5/02 , A61B5/00
    • In described embodiments, a data collection device receives signals from one or more patient monitoring devices, the signals representing patient data and other vital signs measured at a patient. The data collection device employs statistical quality algorithms to track irregular behavior and out-of-bound events, the behavior and events either being pre-set, adaptively set, or otherwise defined within pre-determined limits. The data collection device communicates alerting signals to a caregiver's handheld device when the irregular behavior and out-of-bound events occur. The alerting signals contain information related to the patient data, irregular behavior and out-of-bound events, thereby allowing a caregiver to take appropriate action.
    • 在所描述的实施例中，数据收集装置从一个或多个患者监视装置接收信号，该信号表示在患者处测量的患者数据和其他生命体征。 数据收集装置采用统计质量算法来跟踪不规则行为和超出事件，行为和事件被预先设定，自适应地设置或以其他方式定义在预定的限度内。 当发生不规则行为和超出事件时，数据收集设备将警报信号传达给照顾者的手持设备。 警报信号包含与患者数据相关的信息，不规则行为和超出事件，从而允许照顾者采取适当的行动。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
    • 30. 发明授权
      US08532240B2 Decoupling sampling clock and error clock in a data eye 有权
    • Decoupling sampling clock and error clock in a data eye
    • 在数据眼中去除采样时钟和错误时钟
    • US08532240B2
    • 2013-09-10
    • US12968538
    • 2011-01-03
    • Paul Tracy , Mohammad Mobin , Ye Liu , Lane A. Smith
    • Paul Tracy , Mohammad Mobin , Ye Liu , Lane A. Smith
    • H04B1/10 , H04L7/02 , H03K5/159
    • H04L25/03038
    • In described embodiments, a transceiver includes an eye monitor, clock and data recovery, and adaptation modules. Data sampling clock phase and error clock phase determined from a data eye are decoupled in the transceiver during a sampling phase correction process. Decoupling these clock phases during the sampling phase correction process allows relative optimization of system equalization parameters without degradation of various adaptation algorithms. Such adaptation algorithms might be employed for received signal gain and equalization such as, for example, Decision Feedback Equalizer (DFE) adaptation. Deriving the data sampling clock and error clock phases from the same clock generation source and with independent clock control enables an iterative sampling phase correction process that allows for accelerated clock and data recovery (CDR) without disturbing the data eye shape.
    • 在所描述的实施例中，收发器包括眼睛监视器，时钟和数据恢复以及适配模块。 在采样相位校正过程中，从数据眼睛确定的数据采样时钟相位和误差时钟相位在收发器中解耦。 在采样相位校正过程中去耦合这些时钟相位允许系统均衡​​参数的相对优化，而不会降低各种自适应算法。 这样的适配算法可以用于接收信号增益和均衡，例如，判决反馈均衡器（DFE）适配。 从相同的时钟产生源和独立的时钟控制中获取数据采样时钟和错误时钟相位，可以实现迭代采样相位校正过程，可以在不影响数据眼睛形状的情况下加速时钟和数据恢复（CDR）。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
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