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    FIRMWARE-BASED TRUSTED PLATFORM MODULE FOR ARM PROCESSOR ARCHITECTURES AND TRUSTZONE SECURITY EXTENSIONS
    82.
    发明申请
    FIRMWARE-BASED TRUSTED PLATFORM MODULE FOR ARM PROCESSOR ARCHITECTURES AND TRUSTZONE SECURITY EXTENSIONS 有权
    用于ARM处理器架构和TRUSTZONE安全扩展的基于固件的TRUSTED平台模块

    公开(公告)号：US20130031374A1

    公开(公告)日：2013-01-31

    申请号：US13193945

    申请日：2011-07-29

    申请人： Stefan Thom ,  Jeremiah Cox ,  David Linsley ,  Magnus Nystrom ,  Himanshu Raj ,  David Robinson ,  Stefan Saroiu ,  Rob Spiger ,  Alastair Wolman

    发明人： Stefan Thom ,  Jeremiah Cox ,  David Linsley ,  Magnus Nystrom ,  Himanshu Raj ,  David Robinson ,  Stefan Saroiu ,  Rob Spiger ,  Alastair Wolman

    IPC分类号： G06F21/00

    CPC分类号： G06F21/552 ,  G06F21/46 ,  G06F21/57 ,  G06F21/572 ,  G06F21/575 ,  G06F21/71 ,  G06F21/74 ,  G06F2221/034

    摘要： A “Firmware-Based TPM” or “fTPM” ensures that secure code execution is isolated to prevent a wide variety of potential security breaches. Unlike a conventional hardware based Trusted Platform Module (TPM), isolation is achieved without the use of dedicated security processor hardware or silicon. In general, the fTPM is first instantiated in a pre-OS boot environment by reading the fTPM from system firmware or firmware accessible memory or storage and placed into read-only protected memory of the device. Once instantiated, the fTPM enables execution isolation for ensuring secure code execution. More specifically, the fTPM is placed into protected read-only memory to enable the device to use hardware such as the ARM® architecture's TrustZone™ extensions and security primitives (or similar processor architectures), and thus the devices based on such architectures, to provide secure execution isolation within a “firmware-based TPM” without requiring hardware modifications to existing devices.

    摘要翻译： 基于固件的TPM或fTPM确保安全代码执行被隔离，以防止各种潜在的安全漏洞。 与传统的基于硬件的可信平台模块（TPM）不同，在不使用专用安全处理器硬件或硅片的情况下实现隔离。 通常，通过从系统固件或固件可访问的存储器或存储器读取fTPM并将其放置在设备的只读受保护的存储器中，fTPM首先在前OS引导环境中实例化。 一旦实例化，fTPM就能实现执行隔离，以确保执行安全的代码。 更具体地说，将fTPM放置到受保护的只读存储器中，以使设备能够使用诸如ARM®架构的TrustZone™扩展和安全原语（或类似的处理器架构）之类的硬件，从而使基于这种架构的设备提供 基于固件的TPM中的安全执行隔离，而不需要对现有设备进行硬件修改。

    Control channel negotiated intermittent wireless communication
    84.
    发明授权
    Control channel negotiated intermittent wireless communication 有权
    控制通道协商间歇性无线通信

    公开(公告)号：US08184656B2

    公开(公告)日：2012-05-22

    申请号：US11866092

    申请日：2007-10-02

    申请人： Ranveer Chandra ,  Christos Gkantsidis ,  Ratul Mahajan ,  Antony Ian Taylor Rowstron ,  Alastair Wolman ,  Yongqiang Xiong

    发明人： Ranveer Chandra ,  Christos Gkantsidis ,  Ratul Mahajan ,  Antony Ian Taylor Rowstron ,  Alastair Wolman ,  Yongqiang Xiong

    IPC分类号： H04L12/413

    CPC分类号： H04B7/02 ,  H04B7/04 ,  H04B7/12 ,  H04W28/18 ,  H04W64/006

    摘要： A dual mode communication device utilizes a control channel to exploit diversity, history, and context in advance of establishing a broadband data exchange session on a broadband but shorter range wireless data channel, maximizing productive use of such a session. Appropriate diversity for the negotiated session further enhance data transfer, including path diversity, radio technology diversity (e.g., WiMax, Wi-Fi, ultra wideband, Bluetooth), antenna diversity (e.g., MIMO), modulation diversity (e.g., rate selection for 802.11, or symbol length selection to combat multi-path fading), and frequency diversity (e.g., 2.4 GHz versus 5 GHz). Historical information about channel characteristics optimize the selection of channel parameters with respect to the diversity choices. In addition, context information such as location and speed can be used to categorize the historical information that is collected to further optimize channel parameters.

    摘要翻译： 提前在宽带但较短范围的无线数据信道上建立宽带数据交换会话，双模式通信设备利用控制信道来利用分集，历史和上下文，从而最大化这种会话的生产性使用。 协商会话的适当分集进一步增强数据传输，包括路径分集，无线电技术分集（例如WiMax，Wi-Fi，超宽带，蓝牙），天线分集（例如，MIMO），调制分集（例如，802.11的速率选择 ，或符号长度选择以对抗多径衰落）和频率分集（例如，2.4GHz与5GHz）。 关于信道特征的历史信息优化了对于多样性选择的信道参数的选择。 此外，可以使用位置和速度等上下文信息对收集的历史信息进行分类，以进一步优化信道参数。

    TRUSTED SENSORS
    85.
    发明申请
    TRUSTED SENSORS 有权
    信号传感器

    公开(公告)号：US20110320823A1

    公开(公告)日：2011-12-29

    申请号：US12823150

    申请日：2010-06-25

    申请人： Stefan Saroiu ,  Alastair Wolman

    发明人： Stefan Saroiu ,  Alastair Wolman

    IPC分类号： G06F21/00

    CPC分类号： G06F21/57 ,  G06F21/53 ,  H04L9/3218 ,  H04L9/3247 ,  H04L2209/805

    摘要： Architecture that provides trusted sensors and trusted sensor readings on computing devices such as mobile devices. The architecture utilizes a trustworthy computing technology (e.g., trusted platform module (TPM). In the context of TPM, one implementation requires no additional hardware beyond the TPM and a virtualized environment to provide trusted sensor readings. A second implementation incorporates trusted computing primitives directly into sensors and enhances security using signed sensor readings. Privacy issues arising from the deployment of trusted sensors are also addressed by utilizing protocols.

    摘要翻译： 在计算设备（如移动设备）上提供信任的传感器和可靠的传感器读数的架构。 该架构采用可信赖的计算技术（例如可信赖的平台模块（TPM）），在TPM的上下文中，一个实现不需要TPM以外的附加硬件和虚拟化环境来提供可信赖的传感器读数。第二个实现包括可信赖的计算原语直接 传感器，并使用带符号的传感器读数增强安全性。通过使用协议也可以解决部署信任传感器所引起的隐私问题。

    Estimating Time Of Arrival
    86.
    发明申请
    Estimating Time Of Arrival 审中-公开
    估计到达时间

    公开(公告)号：US20100179753A1

    公开(公告)日：2010-07-15

    申请号：US12353970

    申请日：2009-01-15

    申请人： Sharad Agarwal ,  Paramvir Bahl ,  Ranveer Chandra ,  Alastair Wolman ,  Mudit Jain

    发明人： Sharad Agarwal ,  Paramvir Bahl ,  Ranveer Chandra ,  Alastair Wolman ,  Mudit Jain

    IPC分类号： G01C21/00

    CPC分类号： G01C21/26 ,  G01C21/20

    摘要： Described herein is a system that includes a location determiner component that receives a first geographic location of a personal computing device of a first individual, wherein the first geographic location is indicative of a current geographic location of the first individual. The system also includes an estimator component that receives a second geographic location that is different from the first geographic location. The estimator component determines an estimated time of arrival for the first individual at the second geographic location based at least in part upon the received first geographic location, wherein the estimator component outputs the estimated time of arrival to a second individual.

    摘要翻译： 这里描述的是包括接收第一个人的个人计算设备的第一地理位置的位置确定器组件的系统，其中第一地理位置指示第一个人的当前地理位置。 该系统还包括接收与第一地理位置不同的第二地理位置的估计器组件。 估计器组件至少部分地基于所接收的第一地理位置确定第一个体在第二地理位置处的估计到达时间，其中估计器组件输出到达第二个体的预计到达时间。

    Wireless performance analysis system
    88.
    发明授权
    Wireless performance analysis system 有权
    无线性能分析系统

    公开(公告)号：US07516049B2

    公开(公告)日：2009-04-07

    申请号：US11680575

    申请日：2007-02-28

    申请人： Brian D. Zill ,  Alastair Wolman ,  Jitendra D. Padhye ,  Paramvir Bahl ,  Ranveer Chandra

    发明人： Brian D. Zill ,  Alastair Wolman ,  Jitendra D. Padhye ,  Paramvir Bahl ,  Ranveer Chandra

    IPC分类号： G06F11/30

    CPC分类号： H04W24/08 ,  H04L41/5009 ,  H04L43/0829 ,  H04L43/0894

    摘要： Wireless adapters are installed on one or more general purpose computing devices and are connected via a wireless network in an enterprise environment. The adapters are densely deployed at known locations throughout the environment and are configured as air monitors. The air monitors monitor wireless signals transmitted between transceiver devices and access points and records information about these signals. One or more analysis or inference engines may be deployed to analyze the signals received from the air monitors to obtain optimum performance and connectivity information about the wireless network.

    摘要翻译： 无线适配器安装在一个或多个通用计算设备上，并通过企业环境中的无线网络连接。 适配器密集地部署在整个环境中的已知位置，并配置为空气监视器。 空中监视器监视在收发器设备和接入点之间传输的无线信号，并记录关于这些信号的信息。 可以部署一个或多个分析或推理引擎来分析从空中监视器接收的信号，以获得关于无线网络的最佳性能和连接信息。