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    Margin Test Methods and Circuits
    12.
    发明申请
    Margin Test Methods and Circuits 有权
    保证金测试方法和电路

    公开(公告)号：US20150341128A1

    公开(公告)日：2015-11-26

    申请号：US14817607

    申请日：2015-08-04

    Applicant: Rambus Inc.

    Inventor： Andrew Ho ,  Vladimir Stojanovic ,  Bruno W. Garlepp ,  Fred F. Chen

    IPC: H04B17/29 ,  H04L27/01 ,  H04L25/03

    CPC classification number: H04B17/29 ,  G01R31/31711 ,  G06F11/08 ,  H04B17/21 ,  H04L1/20 ,  H04L1/241 ,  H04L1/242 ,  H04L7/033 ,  H04L7/043 ,  H04L7/10 ,  H04L25/03006 ,  H04L25/03057 ,  H04L25/03146 ,  H04L25/03949 ,  H04L27/01

    Abstract: Described are methods and circuits for margin testing digital receivers. These methods and circuits prevent margins from collapsing in response to erroneously received data, and can thus be used in receivers that employ historical data to reduce intersymbol interference (ISI). Some embodiments detect receive errors for input data streams of unknown patterns, and can thus be used for in-system margin testing. Such systems can be adapted to dynamically alter system parameters during device operation to maintain adequate margins despite fluctuations in the system noise environment due to e.g. temperature and supply-voltage changes. Also described are methods of plotting and interpreting filtered and unfiltered error data generated by the disclosed methods and circuits. Some embodiments filter error data to facilitate pattern-specific margin testing.

    Abstract translation: 描述了数字接收机边缘测试的方法和电路。 这些方法和电路可以防止误差响应于错误接收的数据而崩溃，并且因此可以用在采用历史数据的接收机中以减少符号间干扰（ISI）。 一些实施例检测未知模式的输入数据流的接收错误，因此可以用于系统内边缘测试。 这样的系统可以适于在设备操作期间动态地改变系统参数，以保持足够的余量，尽管由于例如系统噪声环境的波动。 温度和电源电压变化。 还描述了绘制和解释由所公开的方法和电路产生的滤波和未滤波的误差数据的方法。 一些实施例可以过滤错误数据以促进模式特定的边缘测试。

    Margin test methods and circuits
    13.
    发明授权
    Margin test methods and circuits 有权
    保证金测试方法和电路

    公开(公告)号：US08817932B2

    公开(公告)日：2014-08-26

    申请号：US13967530

    申请日：2013-08-15

    Applicant: Rambus Inc.

    Inventor： Andrew Ho ,  Vladimir Stojanovic ,  Bruno W. Garlepp ,  Fred F. Chen

    IPC: H04L7/00 ,  H04L27/06

    CPC classification number: H04B17/29 ,  G01R31/31711 ,  G06F11/08 ,  H04B17/21 ,  H04L1/20 ,  H04L1/241 ,  H04L1/242 ,  H04L7/033 ,  H04L7/043 ,  H04L7/10 ,  H04L25/03006 ,  H04L25/03057 ,  H04L25/03146 ,  H04L25/03949 ,  H04L27/01

    Abstract: Described are methods and circuits for margin testing digital receivers. These methods and circuits prevent margins from collapsing in response to erroneously received data, and can thus be used in receivers that employ historical data to reduce intersymbol interference (ISI). Some embodiments detect receive errors for input data streams of unknown patterns, and can thus be used for in-system margin testing. Such systems can be adapted to dynamically alter system parameters during device operation to maintain adequate margins despite fluctuations in the system noise environment due to e.g. temperature and supply-voltage changes. Also described are methods of plotting and interpreting filtered and unfiltered error data generated by the disclosed methods and circuits. Some embodiments filter error data to facilitate pattern-specific margin testing.

    Abstract translation: 描述了数字接收机边缘测试的方法和电路。 这些方法和电路可以防止误差响应于错误接收的数据而崩溃，并且因此可以用在采用历史数据的接收机中以减少符号间干扰（ISI）。 一些实施例检测未知模式的输入数据流的接收错误，因此可以用于系统内边缘测试。 这样的系统可以适于在设备操作期间动态地改变系统参数，以保持足够的余量，尽管由于例如系统噪声环境的波动。 温度和电源电压变化。 还描述了绘制和解释由所公开的方法和电路产生的滤波和未滤波的误差数据的方法。 一些实施例可以过滤错误数据以促进模式特定的边缘测试。

    Margin Test Methods and Circuits
    15.
    发明申请
    Margin Test Methods and Circuits 有权

    公开(公告)号：US20220182158A1

    公开(公告)日：2022-06-09

    申请号：US17557518

    申请日：2021-12-21

    Applicant: Rambus Inc.

    Inventor： Andrew Ho ,  Vladimir Stojanovic ,  Bruno W. Garlepp ,  Fred F. Chen

    IPC: H04B17/29 ,  H04L25/03 ,  H04L27/01 ,  H04B17/21 ,  G01R31/317 ,  H04L1/20 ,  H04L1/24 ,  H04L7/033 ,  G06F11/08

    Abstract: Described are methods and circuits for margin testing digital receivers. These methods and circuits prevent margins from collapsing in response to erroneously received data and can thus be used in receivers that employ historical data to reduce intersymbol interference (ISI). Some embodiments detect receive errors for input data streams of unknown patterns and can thus be used for in-system margin testing. Such systems can be adapted to dynamically alter system parameters during device operation to maintain adequate margins despite fluctuations in the system noise environment due to e.g. temperature and supply-voltage changes. Also described are methods of plotting and interpreting filtered and unfiltered error data generated by the disclosed methods and circuits. Some embodiments filter error data to facilitate pattern-specific margin testing.

    Margin test methods and circuits
    16.
    发明授权
    Margin test methods and circuits 有权

    公开(公告)号：US10735116B2

    公开(公告)日：2020-08-04

    申请号：US16228470

    申请日：2018-12-20

    Applicant: Rambus Inc.

    Inventor： Andrew Ho ,  Vladimir Stojanovic ,  Bruno W. Garlepp ,  Fred F. Chen

    IPC: H04B17/29 ,  H04L1/20 ,  H04L1/24 ,  H04L25/03 ,  H04B17/21 ,  G01R31/317 ,  H04L27/01 ,  H04L7/033 ,  G06F11/08 ,  H04L7/04 ,  H04L7/10

    Abstract: Described are methods and circuits for margin testing digital receivers. These methods and circuits prevent margins from collapsing in response to erroneously received data and can thus be used in receivers that employ historical data to reduce intersymbol interference (ISI). Some embodiments detect receive errors for input data streams of unknown patterns and can thus be used for in-system margin testing. Such systems can be adapted to dynamically alter system parameters during device operation to maintain adequate margins despite fluctuations in the system noise environment due to e.g. temperature and supply-voltage changes. Also described are methods of plotting and interpreting filtered and unfiltered error data generated by the disclosed methods and circuits. Some embodiments filter error data to facilitate pattern-specific margin testing.

    Margin test methods and circuits
    20.
    发明授权
    Margin test methods and circuits 有权
    保证金测试方法和电路

    公开(公告)号：US09544071B2

    公开(公告)日：2017-01-10

    申请号：US14817607

    申请日：2015-08-04

    Applicant: Rambus Inc.

    Inventor： Andrew Ho ,  Vladimir Stojanovic ,  Bruno W. Garlepp ,  Fred F. Chen

    IPC: H04B17/29 ,  H04L27/01 ,  H04L25/03 ,  G01R31/317 ,  H04L1/20 ,  H04L1/24 ,  H04L7/033 ,  G06F11/08 ,  H04B17/21 ,  H04L7/04 ,  H04L7/10

    CPC classification number: H04B17/29 ,  G01R31/31711 ,  G06F11/08 ,  H04B17/21 ,  H04L1/20 ,  H04L1/241 ,  H04L1/242 ,  H04L7/033 ,  H04L7/043 ,  H04L7/10 ,  H04L25/03006 ,  H04L25/03057 ,  H04L25/03146 ,  H04L25/03949 ,  H04L27/01

    Abstract: Described are methods and circuits for margin testing digital receivers. These methods and circuits prevent margins from collapsing in response to erroneously received data, and can thus be used in receivers that employ historical data to reduce intersymbol interference (ISI). Some embodiments detect receive errors for input data streams of unknown patterns, and can thus be used for in-system margin testing. Such systems can be adapted to dynamically alter system parameters during device operation to maintain adequate margins despite fluctuations in the system noise environment due to e.g. temperature and supply-voltage changes. Also described are methods of plotting and interpreting filtered and unfiltered error data generated by the disclosed methods and circuits. Some embodiments filter error data to facilitate pattern-specific margin testing.

    Abstract translation: 描述了数字接收机边缘测试的方法和电路。 这些方法和电路可以防止误差响应于错误接收的数据而崩溃，并且因此可以用于采用历史数据的接收机来减少符号间干扰（ISI）。 一些实施例检测未知模式的输入数据流的接收错误，因此可以用于系统内边缘测试。 这样的系统可以适于在设备操作期间动态地改变系统参数，以保持足够的余量，尽管由于例如系统噪声环境的波动。 温度和电源电压变化。 还描述了绘制和解释由所公开的方法和电路产生的滤波和未滤波的误差数据的方法。 一些实施例可以过滤错误数据以促进模式特定的边缘测试。

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