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    I/O impedance controller
    3.
    发明授权
    I/O impedance controller 有权
    I / O阻抗控制器

    公开(公告)号：US06703908B1

    公开(公告)日：2004-03-09

    申请号：US09619724

    申请日：2000-07-20

    申请人： Rodney Ruesch ,  Philip N. Jenkins ,  Nan Ma

    发明人： Rodney Ruesch ,  Philip N. Jenkins ,  Nan Ma

    IPC分类号： H03H740

    CPC分类号： H03H17/0054

    摘要： There is disclosed apparatus and apparatus for impedance control to provide for controlling the impedance of a communication circuit using an all-digital impedance control circuit wherein one or more control bits are used to tune the output impedance. In one example embodiment, the impedance control circuit is fabricated using circuit components found in a standard macro library of a computer aided design system. According to another example embodiment, there is provided a control for an output driver on an integrated circuit (“IC”) device to provide for forming a resistor divider network with the output driver and a resistor off the IC device so that the divider network produces an output voltage, comparing the output voltage of the divider network with a reference voltage, and adjusting the output impedance of the output driver to attempt to match the output voltage of the divider network and the reference voltage. Also disclosed is over-sampling the divider network voltage, storing the results of the over sampling, repeating the over-sampling and storing, averaging the results of multiple over sampling operations, controlling the impedance with a plurality of bits forming a word, and updating the value of the word by only one least significant bit at a time.

    摘要翻译： 公开了用于阻抗控制的装置和装置，用于使用全数字阻抗控制电路来控制通信电路的阻抗，其中使用一个或多个控制位来调谐输出阻抗。 在一个示例性实施例中，使用在计算机辅助设计系统的标准宏库中发现的电路元件制造阻抗控制电路。 根据另一示例性实施例，提供了一种用于集成电路（“IC”）设备上的输出驱动器的控制，以提供与输出驱动器形成电阻分压器网络和从IC器件断开电阻器，使得分压器网络产生 输出电压，将分压网络的输出电压与参考电压进行比较，以及调整输出驱动器的输出阻抗以尝试匹配分压网络的输出电压和参考电压。 还公开了对分压网络电压进行过采样，存储过采样的结果，重复过采样和存储多个过采样操作的结果的平均值，以形成字的多个位来控制阻抗，以及更新 单词的值一次只有一个最低有效位。

    METHODS AND APPARATUS FOR ADAPTATION OF CONTINUOUS TIME-DECISION FEEDBACK EQUALIZERS WITH PROGRAMMABLE ADAPTATION PATTERNS
    4.
    发明申请
    METHODS AND APPARATUS FOR ADAPTATION OF CONTINUOUS TIME-DECISION FEEDBACK EQUALIZERS WITH PROGRAMMABLE ADAPTATION PATTERNS 失效
    使用可编程适配模式适应连续时间反馈均衡器的方法和装置

    公开(公告)号：US20120027073A1

    公开(公告)日：2012-02-02

    申请号：US12847700

    申请日：2010-07-30

    申请人： Christoher J. Abel ,  Lane A. Smith ,  Philip N. Jenkins ,  Brett D. Hardy ,  Vladimir Sindalovsky

    发明人： Christoher J. Abel ,  Lane A. Smith ,  Philip N. Jenkins ,  Brett D. Hardy ,  Vladimir Sindalovsky

    IPC分类号： H03K5/159

    CPC分类号： H04L25/03057 ,  H04L2025/0356 ,  H04L2025/03617 ,  H04L2025/03796

    摘要： Methods and apparatus are provided for adaptation of continuous time-decision feedback equalizers with programmable adaptation patterns. A continuous time-decision feedback equalizer is adapted by obtaining at least one programmable signature pattern that triggers adaptation of one or more of a pole and a gain of the continuous time-decision feedback equalizer; detecting the at least one programmable signature pattern in an incoming signal; and adapting one or more of the pole and the gain of the continuous time-decision feedback equalizer when the at least one programmable signature pattern is detected in the incoming signal. The programmable signature pattern can be selected to ensure an unambiguous direction of change in an error sample when a corresponding one of the pole and the gain are modified.

    摘要翻译： 提供方法和装置用于适应具有可编程自适应模式的连续时间 - 决策反馈均衡器。 通过获得触发连续时间判定反馈均衡器的极点和增益中的一个或多个的自适应的至少一个可编程签名模式来适配连续时间判定反馈均衡器; 检测输入信号中的至少一个可编程签名模式; 以及当在所述输入信号中检测到所述至少一个可编程签名模式时，使所述连续时间判定反馈均衡器的极点和增益中的一个或多个被适配。 可以选择可编程签名模式，以确保当修正了极点和增益中的相应一个时，错误样本中的明确的变化方向。

    Methods and apparatus for adaptation of continuous time-decision feedback equalizers with programmable adaptation patterns
    5.
    发明授权
    Methods and apparatus for adaptation of continuous time-decision feedback equalizers with programmable adaptation patterns 失效
    具有可编程自适应模式的连续时间决策反馈均衡器的适应方法和装置

    公开(公告)号：US08483266B2

    公开(公告)日：2013-07-09

    申请号：US12847700

    申请日：2010-07-30

    申请人： Christopher J. Abel ,  Lane A. Smith ,  Philip N. Jenkins ,  Brett D. Hardy ,  Vladimir Sindalovsky

    发明人： Christopher J. Abel ,  Lane A. Smith ,  Philip N. Jenkins ,  Brett D. Hardy ,  Vladimir Sindalovsky

    IPC分类号： H03K5/159

    CPC分类号： H04L25/03057 ,  H04L2025/0356 ,  H04L2025/03617 ,  H04L2025/03796

    摘要： Methods and apparatus are provided for adaptation of continuous time-decision feedback equalizers with programmable adaptation patterns. A continuous time-decision feedback equalizer is adapted by obtaining at least one programmable signature pattern that triggers adaptation of one or more of a pole and a gain of the continuous time-decision feedback equalizer; detecting the at least one programmable signature pattern in an incoming signal; and adapting one or more of the pole and the gain of the continuous time-decision feedback equalizer when the at least one programmable signature pattern is detected in the incoming signal. The programmable signature pattern can be selected to ensure an unambiguous direction of change in an error sample when a corresponding one of the pole and the gain are modified.

    摘要翻译： 提供方法和装置用于适应具有可编程自适应模式的连续时间 - 决策反馈均衡器。 通过获得触发连续时间判定反馈均衡器的极点和增益中的一个或多个的自适应的至少一个可编程签名模式来适配连续时间判定反馈均衡器; 检测输入信号中的至少一个可编程签名模式; 以及当在所述输入信号中检测到所述至少一个可编程签名模式时，使所述连续时间判定反馈均衡器的极点和增益中的一个或多个被适配。 可以选择可编程签名模式，以确保当修正了极点和增益中的相应一个时，错误样本中的明确的变化方向。