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    • 1. 发明申请
    • Computing device limiting mechanism
    • 计算设备限制机制
    • US20070136570A1
    • 2007-06-14
    • US11515410
    • 2006-08-31
    • Alexander FrankWilliam WesterinenCurt SteebZhangwei Xu
    • Alexander FrankWilliam WesterinenCurt SteebZhangwei Xu
    • G06F15/177G06F9/00
    • G06F21/575G06F21/572G06F2221/2105G06Q20/085G06Q30/0283G06Q30/0284
    • Described is a technology by which a computing device is booted into a normal mode of operation or a limited mode of operation, depending on whether the computing device was operating correctly (e.g., with respect to policy) prior to a reboot. The reboot may be forced. Examples of incorrect state include an overdue payment on a leased computer, or improper execution of certain important software. A metering mechanism evaluates the state of the computing device, and when an incorrect state is detected, configures the computing device for operation in the limited mode, by setting the computing device to boot via one boot path (e.g., a limited-mode BIOS) instead of another boot path (e.g., a normal-mode BIOS). A BIOS selector switches to the limited BIOS on the next reboot, wherein the computing device is restricted to the limited mode of operation (regardless of subsequent reboots) until the correct state is restored.
    • 描述了根据计算设备在重新启动之前是否正确地操作(例如,关于策略)是否将计算设备引导到正常操作模式或有限操作模式的技术。 重启可能会被强制。 错误状态的示例包括租用计算机上的逾期付款或某些重要软件的不当执行。 计量机构评估计算装置的状态,并且当检测到不正确的状态时,通过将计算装置通过一个引导路径(例如,限制模式BIOS)来设置计算装置来配置在限制模式中操作的计算装置, 而不是另一个引导路径(例如,普通模式BIOS)。 BIOS选择器在下一次重新启动时切换到有限的BIOS,其中计算设备被限制到有限的操作模式(不管后续重新启动),直到恢复正确的状态。
    • 6. 发明申请
    • System and method for maintaining persistent state data
    • 用于维护持久状态数据的系统和方法
    • US20060139069A1
    • 2006-06-29
    • US11020329
    • 2004-12-22
    • Alexander FrankMark LightWilliam Westerinen
    • Alexander FrankMark LightWilliam Westerinen
    • H03L7/00
    • G06F1/30G06F11/1441
    • A system and method for maintaining persistent data during an unexpected power loss uses a memory controller and a supplemental power source. An entity running on the computer, for example, an application program, a utility, the operating system or other entity, may identify data for preservation using an application program interface. The application program interface may be provided by the memory controller. A sensor determines when an unexpected power loss has occurred and signals the memory controller. Using power from the supplemental power source, i.e. a battery or capacitor, the memory controller copies the identified data to a non-volatile memory. The memory controller may set a flag to indicate that preserved data is available for later recovery.
    • 在意外的功率损耗期间维护持久数据的系统和方法使用存储器控制器和补充电源。 在计算机上运行的实体,例如应用程序,实用程序,操作系统或其他实体,可以使用应用程序接口识别用于保存的数据。 应用程序接口可以由存储器控制器提供。 传感器确定何时发生意外的功率损耗并向存储器控制器发出信号。 使用来自补充电源(即,电池或电容器)的电力,存储器控制器将识别的数据复制到非易失性存储器。 存储器控制器可以设置标志以指示保留的数据可用于稍后的恢复。
    • 8. 发明申请
    • System and method for trustworthy metering and deactivation
    • 用于可靠计量和停用的系统和方法
    • US20060206718A1
    • 2006-09-14
    • US11074500
    • 2005-03-08
    • Alexander FrankWilliam Westerinen
    • Alexander FrankWilliam Westerinen
    • H04L9/00
    • G06F21/84G06F2221/2105G06F2221/2135G06F2221/2137G06Q30/04G06Q30/06
    • A computer is adapted for use in different operating modes by configuring an output controller, such as a graphics processing unit, to screen output signals prior to presenting them to the output device. A secure environment in the output controller verifies a digital signature or a hash of the output signal to determine whether the output signal is compatible with the current mode of operation. Thus only authorized output signals are presented when the computer is operating in a limited function mode, such as when metered usage time is expired. The apparatus and method also disclose similar output signal screening for determining whether the computer should be returned from a standby, or no-metering, mode to an active, or metered mode.
    • 计算机适于在不同的操作模式中使用,通过配置诸如图形处理单元之类的输出控制器,以在将输出信号呈现给输出设备之前进行屏幕输出。 输出控制器中的安全环境验证输出信号的数字签名或散列,以确定输出信号是否与当前操作模式兼容。 因此,当计算机以有限的功能模式操作时,例如当计量使用时间到期时,仅呈现授权的输出信号。 该装置和方法还公开了类似的输出信号筛选,用于确定计算机是否应该从备用或无计量模式返回到活动或计量模式。