Analyzing a target electromagnetic signal radiating from a computer system
    2.
    发明授权
    Analyzing a target electromagnetic signal radiating from a computer system 有权
    分析从计算机系统辐射的目标电磁信号

    公开(公告)号:US08255341B2

    公开(公告)日:2012-08-28

    申请号:US12340029

    申请日:2008-12-19

    IPC分类号: G06F15/18

    CPC分类号: G01R33/10

    摘要: One embodiment of the present invention provides a system that characterizes a computer system parameter by analyzing a target electromagnetic signal radiating from the computer system. First, the system monitors the target electromagnetic signal using a first directional antenna located outside of the computer system, wherein the first directional antenna is directed at a location inside the computer system. The system also monitors the target electromagnetic signal using a second directional antenna located outside of the computer system, wherein a receiving axis of the second antenna is oriented non-parallel to a receiving axis of the first antenna, and wherein the second directional antenna is directed at the location inside the computer system. Next, the system characterizes the computer system parameter based on the target electromagnetic signal received from the first antenna and the target electromagnetic signal received from the second antenna. Then, the system generates a request for an action based on the characterization of the computer system.

    摘要翻译: 本发明的一个实施例提供一种通过分析从计算机系统辐射的目标电磁信号来表征计算机系统参数的系统。 首先,系统使用位于计算机系统外部的第一定向天线来监视目标电磁信号,其中第一定向天线指向计算机系统内部的位置。 该系统还使用位于计算机系统外部的第二定向天线来监视目标电磁信号,其中第二天线的接收轴定向成不平行于第一天线的接收轴,并且其中第二定向天线被定向 在计算机系统内的位置。 接下来,系统基于从第一天线接收的目标电磁信号和从第二天线接收的目标电磁信号来表征计算机系统参数。 然后,系统基于计算机系统的特性生成针对动作的请求。

    ANALYZING A TARGET ELECTROMAGNETIC SIGNAL RADIATING FROM A COMPUTER SYSTEM
    3.
    发明申请
    ANALYZING A TARGET ELECTROMAGNETIC SIGNAL RADIATING FROM A COMPUTER SYSTEM 有权
    从计算机系统分析目标电磁信号

    公开(公告)号:US20100161525A1

    公开(公告)日:2010-06-24

    申请号:US12340029

    申请日:2008-12-19

    IPC分类号: G06F15/18 G01R29/08 G06N5/02

    CPC分类号: G01R33/10

    摘要: One embodiment of the present invention provides a system that characterizes a computer system parameter by analyzing a target electromagnetic signal radiating from the computer system. First, the system monitors the target electromagnetic signal using a first directional antenna located outside of the computer system, wherein the first directional antenna is directed at a location inside the computer system. The system also monitors the target electromagnetic signal using a second directional antenna located outside of the computer system, wherein a receiving axis of the second antenna is oriented non-parallel to a receiving axis of the first antenna, and wherein the second directional antenna is directed at the location inside the computer system. Next, the system characterizes the computer system parameter based on the target electromagnetic signal received from the first antenna and the target electromagnetic signal received from the second antenna. Then, the system generates a request for an action based on the characterization of the computer system.

    摘要翻译: 本发明的一个实施例提供一种通过分析从计算机系统辐射的目标电磁信号来表征计算机系统参数的系统。 首先,系统使用位于计算机系统外部的第一定向天线来监视目标电磁信号,其中第一定向天线指向计算机系统内部的位置。 该系统还使用位于计算机系统外部的第二定向天线来监视目标电磁信号,其中第二天线的接收轴定向成不平行于第一天线的接收轴,并且其中第二定向天线被定向 在计算机系统内的位置。 接下来,系统基于从第一天线接收的目标电磁信号和从第二天线接收的目标电磁信号来表征计算机系统参数。 然后,系统基于计算机系统的特性生成针对动作的请求。

    Accurately inferring physical variable values associated with operation of a computer system
    4.
    发明授权
    Accurately inferring physical variable values associated with operation of a computer system 有权
    准确推断与计算机系统运行相关的物理变量值

    公开(公告)号:US08024284B2

    公开(公告)日:2011-09-20

    申请号:US12001369

    申请日:2007-12-10

    IPC分类号: G06F9/44 G06N7/02

    CPC分类号: G06N99/005

    摘要: One embodiment of the present invention provides a system that monitors a physical variable associated with an electronic component within a computer system. During operation, the system receives telemetry signals of the physical variable which are collected by one or more physical sensors associated with the electronic component. The system also collects electromagnetic interference (EMI) signals generated by the electronic component. Next, the system builds an inferential model for the physical variable by correlating the EMI signals with the telemetry signals. The system then uses the inferential model to infer values for the physical variable from the EMI signals.

    摘要翻译: 本发明的一个实施例提供一种监视与计算机系统内的电子部件相关联的物理变量的系统。 在操作期间,系统接收由与电子部件相关联的一个或多个物理传感器收集的物理变量的遥测信号。 该系统还收集由电子元件产生的电磁干扰(EMI)信号。 接下来,系统通过将EMI信号与遥测信号相关联来建立物理变量的推理模型。 然后,系统使用推理模型从EMI信号推断物理变量的值。

    Method and apparatus for generating an EMI fingerprint for a computer system
    5.
    发明授权
    Method and apparatus for generating an EMI fingerprint for a computer system 有权
    一种用于为计算机系统生成EMI指纹的方法和装置

    公开(公告)号:US07613580B2

    公开(公告)日:2009-11-03

    申请号:US11787027

    申请日:2007-04-12

    IPC分类号: G06F11/30

    摘要: A system that generates an electromagnetic interference (EMI) fingerprint for a computer system is presented. During operation, the system executes a load script on the computer system, wherein the load script includes a specified sequence of operations. Next, the system receives EMI signals generated by the computer system while executing the load script. The system then generates the EMI fingerprint from the received EMI signals.

    摘要翻译: 提出了一种为计算机系统生成电磁干扰(EMI)指纹的系统。 在操作期间,系统在计算机系统上执行加载脚本,其中加载脚本包括指定的操作序列。 接下来,系统在执行加载脚本时接收由计算机系统生成的EMI信号。 然后系统从接收到的EMI信号中产生EMI指纹。

    Telemetry data analysis using multivariate sequential probability ratio test
    7.
    发明申请
    Telemetry data analysis using multivariate sequential probability ratio test 有权
    遥测数据分析采用多元顺序概率比测试

    公开(公告)号:US20100292959A1

    公开(公告)日:2010-11-18

    申请号:US12454226

    申请日:2009-05-14

    IPC分类号: G06F17/18 G06F15/00

    摘要: One embodiment provides a system that analyzes telemetry data from a monitored system. During operation, the system periodically obtains the telemetry data as a set of telemetry variables from the monitored system and updates a multidimensional real-time distribution of the telemetry data using the obtained telemetry variables. Next, the system analyzes a statistical deviation of the multidimensional real-time distribution from a multidimensional reference distribution for the monitored system using a multivariate sequential probability ratio test (SPRT) and assesses the integrity of the monitored system based on the statistical deviation of the multidimensional real-time distribution. If the assessed integrity falls below a threshold, the system determines a fault in the monitored system corresponding to a source of the statistical deviation.

    摘要翻译: 一个实施例提供了一种从被监控系统分析遥测数据的系统。 在操作期间,系统周期性地将遥测数据作为来自被监视系统的一组遥测变量获得,并使用获得的遥测变量更新遥测数据的多维实时分布。 接下来,系统使用多变量连续概率比测试(SPRT)分析所监视系统的多维参考分布的多维实时分布的统计偏差,并且基于多维度的统计偏差来评估所监视系统的完整性 实时分配。 如果评估的完整性低于阈值,则系统确定对应于统计偏差来源的被监视系统中的故障。

    Telemetry data analysis using multivariate sequential probability ratio test
    9.
    发明授权
    Telemetry data analysis using multivariate sequential probability ratio test 有权
    遥测数据分析采用多元顺序概率比测试

    公开(公告)号:US09152530B2

    公开(公告)日:2015-10-06

    申请号:US12454226

    申请日:2009-05-14

    摘要: One embodiment provides a system that analyzes telemetry data from a monitored system. During operation, the system periodically obtains the telemetry data as a set of telemetry variables from the monitored system and updates a multidimensional real-time distribution of the telemetry data using the obtained telemetry variables. Next, the system analyzes a statistical deviation of the multidimensional real-time distribution from a multidimensional reference distribution for the monitored system using a multivariate sequential probability ratio test (SPRT) and assesses the integrity of the monitored system based on the statistical deviation of the multidimensional real-time distribution. If the assessed integrity falls below a threshold, the system determines a fault in the monitored system corresponding to a source of the statistical deviation.

    摘要翻译: 一个实施例提供了一种从被监控系统分析遥测数据的系统。 在操作期间,系统周期性地将遥测数据作为来自被监视系统的一组遥测变量获得,并使用获得的遥测变量更新遥测数据的多维实时分布。 接下来,系统使用多变量连续概率比测试(SPRT)分析所监视系统的多维参考分布的多维实时分布的统计偏差,并且基于多维度的统计偏差来评估所监视系统的完整性 实时分配。 如果评估的完整性低于阈值,则系统确定对应于统计偏差来源的被监视系统中的故障。

    Accurately inferring physical variable values associated with operation of a computer system
    10.
    发明申请
    Accurately inferring physical variable values associated with operation of a computer system 有权
    准确推断与计算机系统运行相关的物理变量值

    公开(公告)号:US20090150324A1

    公开(公告)日:2009-06-11

    申请号:US12001369

    申请日:2007-12-10

    IPC分类号: G06N5/04 G06F17/50 G06F19/00

    CPC分类号: G06N99/005

    摘要: One embodiment of the present invention provides a system that monitors a physical variable associated with an electronic component within a computer system. During operation, the system receives telemetry signals of the physical variable which are collected by one or more physical sensors associated with the electronic component. The system also collects electromagnetic interference (EMI) signals generated by the electronic component. Next, the system builds an inferential model for the physical variable by correlating the EMI signals with the telemetry signals. The system then uses the inferential model to infer values for the physical variable from the EMI signals.

    摘要翻译: 本发明的一个实施例提供一种监视与计算机系统内的电子部件相关联的物理变量的系统。 在操作期间,系统接收由与电子部件相关联的一个或多个物理传感器收集的物理变量的遥测信号。 该系统还收集由电子元件产生的电磁干扰(EMI)信号。 接下来,系统通过将EMI信号与遥测信号相关联来建立物理变量的推理模型。 然后,系统使用推理模型从EMI信号推断物理变量的值。