Magnetic recording medium encryption
    1.
    发明授权
    Magnetic recording medium encryption 有权
    磁记录介质加密

    公开(公告)号:US08037320B2

    公开(公告)日:2011-10-11

    申请号:US11695018

    申请日:2007-03-31

    IPC分类号: G06F21/00

    CPC分类号: H04L9/0891 H04L2209/60

    摘要: Systems and methods for easily and at high speed re-encrypting data recorded on a magnetic recording medium when the data is encrypted using an encryption key and the encryption key is changed. A track where effective user data is not recorded is set as a first reserved track, then data is read out from the first updating source track and decrypted using a first encryption key KEY 1, which is reencrypted using a second encryption key KEY 2 and recorded in the first reserved track, next, the first updating source track is set as a second reserved track, and a second updating source track is set, and the encryption key is updated by repeating these steps until all tracks to be subjected to the key updating processing have been subjected to the key updating processing.

    摘要翻译: 当使用加密密钥和加密密钥对数据进行加密时,用于容易地和高速地重新加密记录在磁记录介质上的数据的系统和方法被改变。 将没有记录有效的用户数据的轨道设置为第一保留轨道,然后从第一更新源轨道中读出数据并使用第一加密密钥KEY1进行解密,该第一加密密钥KEY1使用第二加密密钥KEY2重新加密并被记录 在第一保留轨道中,接下来,将第一更新源轨道设置为第二保留轨道,并且设置第二更新源轨道,并且通过重复这些步骤来更新加密密钥,直到要进行密钥更新的所有轨道 处理已经进行了密钥更新处理。

    Solid-state memory management
    2.
    发明授权
    Solid-state memory management 有权
    固态内存管理

    公开(公告)号:US08904085B2

    公开(公告)日:2014-12-02

    申请号:US12687394

    申请日:2010-01-14

    IPC分类号: G06F12/00 G06F1/28 G11C16/30

    CPC分类号: G06F1/28 G11C16/30

    摘要: An exemplary method includes performing flash memory operations; receiving a signal from a voltage monitor as being associated with the performed flash memory operations; and, based at least in part on the received signal, setting a limit for performing subsequent flash memory operations. In such a method, the limit can act to avoid resetting flash memory responsive to current demand associated with subsequent flash memory operations. Various other apparatuses, systems, methods, etc., are also disclosed.

    摘要翻译: 示例性方法包括执行闪存操作; 从电压监视器接收与执行的闪存操作相关联的信号; 并且至少部分地基于所接收的信号,设置用于执行后续闪存操作的限制。 在这种方法中,限制可以用于避免响应于与随后的闪速存储器操作相关联的当前需求来重置闪速存储器。 还公开了各种其它装置,系统,方法等。

    SOLID-STATE MEMORY MANAGEMENT
    3.
    发明申请
    SOLID-STATE MEMORY MANAGEMENT 有权
    固态存储管理

    公开(公告)号:US20110173374A1

    公开(公告)日:2011-07-14

    申请号:US12687394

    申请日:2010-01-14

    IPC分类号: G06F12/02

    CPC分类号: G06F1/28 G11C16/30

    摘要: An exemplary method includes performing flash memory operations; receiving a signal from a voltage monitor as being associated with the performed flash memory operations; and, based at least in part on the received signal, setting a limit for performing subsequent flash memory operations. In such a method, the limit can act to avoid resetting flash memory responsive to current demand associated with subsequent flash memory operations. Various other apparatuses, systems, methods, etc., are also disclosed.

    摘要翻译: 示例性方法包括执行闪存操作; 从电压监视器接收与执行的闪存操作相关联的信号; 并且至少部分地基于所接收的信号,设置用于执行后续闪存操作的限制。 在这种方法中,限制可以用于避免响应于与随后的闪速存储器操作相关联的当前需求来重置闪速存储器。 还公开了各种其它装置,系统,方法等。

    MAGNETIC RECORDING MEDIUM ENCRYPTION
    4.
    发明申请
    MAGNETIC RECORDING MEDIUM ENCRYPTION 有权
    磁记录介质加密

    公开(公告)号:US20080240428A1

    公开(公告)日:2008-10-02

    申请号:US11695018

    申请日:2007-03-31

    IPC分类号: H04L9/14

    CPC分类号: H04L9/0891 H04L2209/60

    摘要: Systems and methods for easily and at high speed re-encrypting data recorded on a magnetic recording medium when the data is encrypted using an encryption key and the encryption key is changed. A track where effective user data is not recorded is set as a first reserved track, then data is read out from the first updating source track and decrypted using a first encryption key KEY 1, which is reencrypted using a second encryption key KEY 2 and recorded in the first reserved track, next, the first updating source track is set as a second reserved track, and a second updating source track is set, and the encryption key is updated by repeating these steps until all tracks to be subjected to the key updating processing have been subjected to the key updating processing.

    摘要翻译: 当使用加密密钥和加密密钥对数据进行加密时,用于容易地和高速地重新加密记录在磁记录介质上的数据的系统和方法被改变。 将没有记录有效的用户数据的轨道设置为第一保留轨道,然后从第一更新源轨道中读出数据并使用第一加密密钥KEY1进行解密,该第一加密密钥KEY1使用第二加密密钥KEY2重新加密并被记录 在第一保留轨道中,接下来,将第一更新源轨道设置为第二保留轨道,并且设置第二更新源轨道,并且通过重复这些步骤来更新加密密钥,直到要进行密钥更新的所有轨道 处理已经进行了密钥更新处理。

    Method for Ensuring Safe Use of a Battery Pack After Impact
    7.
    发明申请
    Method for Ensuring Safe Use of a Battery Pack After Impact 有权
    冲击后确保电池组安全使用的方法

    公开(公告)号:US20080297116A1

    公开(公告)日:2008-12-04

    申请号:US12119708

    申请日:2008-05-13

    IPC分类号: H02J7/04 H02H9/00 G08B5/00

    CPC分类号: H01M2/34 H01M10/48

    摘要: A battery pack is disclosed. The battery pack includes a battery, an impact sensor, a processor and a memory. The impact sensor is capable of generating an impact signal in response to a detection of an impact on the battery pack. The processor is capable of generating impact information based on the impact signal, and processor continues to count a number of charging times to the battery after the generation of the impact information. The memory is capable of storing the impact information and the number of charging times. The processor can refer to the memory to deliver a control command to a battery charger so that the battery can only be charged up to an allowable charge capacity smaller than a full charge capacity after an occurrence of an impact when the battery pack is attached to the battery charger. The charging to the battery stops when the number of the counted charging times reaches a predetermined number of allowable charging times that is allowed after the generation of the impact information.

    摘要翻译: 公开了一种电池组。 电池组包括电池,冲击传感器,处理器和存储器。 冲击传感器能够响应于对电池组的冲击的检测而产生冲击信号。 处理器能够基于影响信号产生影响信息,并且处理器在产生影响信息之后继续计算电池的多个充电时间。 存储器能够存储影响信息和充电次数。 处理器可以参考存储器来向电池充电器传送控制命令,使得当电池组附接到电池组时,电池只能在发生冲击之后被充电至小于满充电容量的容许充电容量 充电器。 当计数的充电次数达到产生冲击信息之后允许的预定数量的允许充电时间时,对电池的充电停止。

    Method, program and apparatus for power control through an electronic information device in a magnetic disk unit
    8.
    发明授权
    Method, program and apparatus for power control through an electronic information device in a magnetic disk unit 有权
    用于通过磁盘单元中的电子信息装置进行功率控制的方法,程序和装置

    公开(公告)号:US07409565B2

    公开(公告)日:2008-08-05

    申请号:US11304834

    申请日:2005-12-15

    IPC分类号: G06F1/32

    CPC分类号: G06F1/3221 Y02D10/154

    摘要: A power control method for a magnetic disk unit is disclosed. The method includes identifying a type of a last instruction sent to a magnetic disk unit and, in response to identifying the type, setting a wait time that varies according to the type. In response to the wait time having elapsed after a completion of processing ordered by the last instruction, an idle instruction is sent to the magnetic disk unit for placing the magnetic disk unit in an idle state in which power consumption is reduced.

    摘要翻译: 公开了一种用于磁盘单元的功率控制方法。 该方法包括识别发送到磁盘单元的最后指令的类型,并且响应于识别类型,设置根据类型而变化的等待时间。 响应于在由最后指令排序的处理完成之后经过的等待时间,将空闲指令发送到磁盘单元,以将磁盘单元置于消耗功率降低的空闲状态。

    Light detecting apparatus
    9.
    发明申请
    Light detecting apparatus 有权
    光检测装置

    公开(公告)号:US20050036187A1

    公开(公告)日:2005-02-17

    申请号:US10891514

    申请日:2004-07-15

    申请人: Takashi Sugawara

    发明人: Takashi Sugawara

    摘要: A light detecting apparatus has a two-axis deflector such as a two-axis mirror capable of controlling the deflection of a light beam. The apparatus realizes a sure and speedy light beam search operation without increasing deflecting frequencies of the two-axis deflector. In the light detecting apparatus, a digital signal processor (3) generates two periodic signals having different frequencies to separately control deflective operations in two axial directions of the two-axis deflection mirror (1). A light beam from the two-axis deflection mirror (1) draws a locus on a two-dimensional position sensitive detector (2). Along the locus, the search operation is carried out to find an orientation of a light emitting element that emits a light beam toward the two-axis deflection mirror (1).

    摘要翻译: 光检测装置具有双轴偏转器,例如能够控制光束偏转的双轴镜。 该装置实现了确保和快速的光束搜索操作,而不增加双轴偏转器的偏转频率。 在光检测装置中,数字信号处理器(3)产生具有不同频率的两个周期信号,以分开地控制双轴偏转镜(1)的两个轴向的偏转操作。 来自两轴偏转镜(1)的光束在二维位置敏感检测器(2)上绘制轨迹。 沿着轨迹,进行搜索操作以找到向双轴偏转镜(1)发射光束的发光元件的取向。

    Computer power management apparatus and method for optimizing CPU throttling
    10.
    发明授权
    Computer power management apparatus and method for optimizing CPU throttling 有权
    用于优化CPU节流的计算机电源管理装置和方法

    公开(公告)号:US06751741B1

    公开(公告)日:2004-06-15

    申请号:US09499063

    申请日:2000-02-04

    IPC分类号: G06F126

    摘要: A method to reduce the power dissipation of a system by omitting an unnecessary CPU throttling operation in a power management apparatus that performs the CPU throttling operation. A power management apparatus 10 is constituted by an event detecting section 12 to detect an event in a system, an activity detecting section 14 to decide whether the system is in a busy state or in an idle state by checking whether or not there is activity in the system, and a clock control section 16 to execute CPU-clock control. The control section 16 does not perform an unnecessary CPU throttling operation, by stopping the CPU throttling operation when the system is in the idle state and performing the CPU throttling operation only when the system is in the busy state. With this, the power dissipation of the system can be considerably reduced.

    摘要翻译: 一种通过在执行CPU限制操作的电力管理装置中省略不必要的CPU节流操作来减少系统功耗的方法。 功率管理装置10由事件检测部12构成,用于检测系统中的事件,活动检测部14,通过检查是否存在活动来判定系统是处于忙碌状态还是空闲状态 系统,以及执行CPU时钟控制的时钟控制部16。 控制部16在系统处于空闲状态时停止CPU限制动作,仅在系统处于忙碌状态时进行CPU限制动作,不执行不必要的CPU限制动作。 因此,可以显着降低系统的功耗。