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    • 4. 发明授权
    • Storage system with disk drive power-on-reset detection
    • 具有磁盘驱动器上电复位检测的存储系统
    • US07188225B1
    • 2007-03-06
    • US10900998
    • 2004-07-28
    • Christophe TherenePaul R. StonelakeAlex Ga Hing TangRichard L. Harris
    • Christophe TherenePaul R. StonelakeAlex Ga Hing TangRichard L. Harris
    • G06F12/00
    • G06F11/1441G06F12/0804G06F12/0866
    • A disk array controller reliably detects disk drive power-on-reset events that may cause a disk drive that has uncommitted write data stored in its cache to lose such data. The methods for detecting the power-on-reset events include operating the disk drives in an ATA security mode in which a power-on-reset of a disk drive will cause the drive to enter a locked state in which data transfer commands are aborted; and tracking power cycle count attributes of the disk drives over time. When a disk drive power-on-reset event is detected, the disk array may be efficiently restored to an operational state by re-executing or “replaying” a set of write commands that are cached within the disk array controller. The invention is also applicable to single-disk-drive storage systems.
    • 磁盘阵列控制器可靠地检测可能导致存储在其高速缓存中的未提交写入数据的磁盘驱动器的磁盘驱动器上电复位事件丢失此类数据。 用于检测上电复位事件的方法包括以ATA安全模式操作磁盘驱动器,其中磁盘驱动器的上电复位将导致驱动器进入数据传输命令被中止的锁定状态; 以及随着时间的推移跟踪磁盘驱动器的功率循环计数属性。 当检测到磁盘驱动器上电复位事件时,可以通过重新执行或重播在盘阵列控制器中缓存的一组写入命令来将磁盘阵列有效地还原到操作状态。 本发明也适用于单盘驱动器存储系统。
    • 7. 发明授权
    • Attitude indicator comparator warning system
    • 姿态指示器比较器警告系统
    • US4193059A
    • 1980-03-11
    • US915708
    • 1978-06-15
    • Richard L. Harris
    • Richard L. Harris
    • G08C19/46G08B21/00
    • G08C19/46
    • The indications of attitude indicators at two different indicating locations that are indicating the same parameter but actuated from different sources, are monitored for the same indication by electrically interconnecting two transolvers that are mechanically coupled to the respective attitude indicator at each location. A monitor, at one indicating location, furnishes the excitation for the transolver at the other location and by the magnitudes of the sine and cosine outputs of the local transolver furnishes flag indication of any system defects of either indicator at each location.
    • 在两个不同指示位置处指示相同参数但是从不同来源启动的姿态指示器的指示通过电连接在每个位置机械地耦合到相应姿态指示器的两个转换器来监视相同的指示。 在一个指示位置处的监视器在另一个位置处提供用于转换器的激励,并且通过本地转换器的正弦和余弦输出的大小提供在每个位置处的任一指示器的任何系统缺陷的标志指示。
    • 8. 发明授权
    • Enhanced CPU return address stack
    • 增强的CPU返回地址堆栈
    • US4872109A
    • 1989-10-03
    • US117455
    • 1987-11-02
    • Robert W. HorstRichard L. Harris
    • Robert W. HorstRichard L. Harris
    • G06F9/26G06F9/38
    • G06F9/3806G06F9/26G06F9/264G06F9/3844
    • Hardware for performing microcode branching in a central processing unit allows for two different speeds of branches which can be used by microcode and includes flexibility to optionally inhibit the extra lines which enter the pipeline on a branch. A default branch path can be taken for a test result not yet available and can be replaced with a correct branch target during a clock pause if the test result is false. A return address stack is provided with decoupled loading and pushing to accommodate the two branching speeds. Microcode can specify loading the return address stack with a literal or register value to allow vectored branching and return to a desired line after a delayed call.
    • 用于在中央处理单元中执行微代码分支的硬件允许可以由微码使用的两种不同速度的分支,并且包括灵活性以可选地抑制在分支上进入管线的额外线路。 如果测试结果为假,则可以采用默认分支路径,以使测试结果不可用,并且可以在时钟暂停期间用正确的分支目标替换。 返回地址堆栈具有去耦加载和推送以适应两个分支速度。 微码可以指定使用文字或寄存器值加载返回地址堆栈,以允许向量分支,并在延迟调用后返回到所需的行。