Disk drive servo control system with selectable filtering for reduction
of repeatable runout
    1.
    发明授权
    Disk drive servo control system with selectable filtering for reduction of repeatable runout 失效
    磁盘驱动器伺服控制系统,具有可选择的过滤功能,可减少可重复的跳动

    公开(公告)号:US5923491A

    公开(公告)日:1999-07-13

    申请号:US681411

    申请日:1996-07-22

    IPC分类号: G11B5/596 G11B21/10

    摘要: The present invention determines whether a filter is used for reading and writing on a disk to correct repeatable runout. The invention estimates the magnitude of repeatable runout for each disk by measuring the maximum absolute value of a state variable of a filter when the disk is turned on or when the disk returns from a sleep mode, and compares the measured value to a predetermined criterion such as the track width. If the magnitude of the repeatable runout is less than or equal to the predetermined criterion, the filter is not used. If the magnitude of the repeatable runout exceeds the predetermined criterion, the invention reads and writes data using the filter.

    摘要翻译: 本发明确定滤波器是否用于读取和写入磁盘以校正可重复的跳动。 本发明通过测量当盘被打开时或当盘从睡眠模式返回时的过滤器的状态变量的最大绝对值,来估计每个盘的可重复跳动的幅度,并将测量值与预定标准 作为轨道宽度。 如果可重复跳动的幅度小于或等于预定标准,则不使用滤波器。 如果可重复跳动的幅度超过预定标准,本发明使用滤波器读取和写入数据。

    Information recording disk and drive system using no sector ID to
increase data storage capacity
    3.
    发明授权
    Information recording disk and drive system using no sector ID to increase data storage capacity 失效
    信息记录磁盘和驱动系统不使用扇区ID来增加数据存储容量

    公开(公告)号:US5561566A

    公开(公告)日:1996-10-01

    申请号:US356427

    申请日:1994-12-15

    摘要: A disk drive having embedded servo information accesses data without using sector identifier recorded in each sector. When a signal sector pulse signal (SP) at the end of a servo area is detected in a dead state during start up, a first data state for the start of a sector transits to a second data state for the litter region of the sector being divided in accordance with the capacity stored in a current sector's pointer register. At the beginning of the sector, the contents of a next sector's pointer register is stored in current sector's pointer register and the contents of a next sector's operation register is stored in a current sector's operation register. Upon completion of sector processing, the first data state is maintained when the next sector is contiguous. When a terminate instruction is stored in current sector's operation register, the process moves to dead state. When the servo area arrives, the process moves to idle state. Responsive to this state, the magnetic head is activated to enable read and write operation for sectors having no sector identifier on the disk.

    摘要翻译: 具有嵌入式伺服信息的磁盘驱动器访问数据而不使用记录在每个扇区中的扇区标识符。 当在起动期间在死区中检测到伺服区域结束处的信号扇区脉冲信号(SP)时,用于扇区开始的扇区的第一数据状态转换到第二数据状态,用于扇区的凋落物区域为 根据存储在当前扇区的指针寄存器中的容量进行划分。 在扇区的开始处,下一个扇区的指针寄存器的内容存储在当前扇区的指针寄存器中,下一个扇区的操作寄存器的内容存储在当前扇区的操作寄存器中。 在扇区处理完成时,当下一扇区连续时,保持第一数据状态。 当终止指令存储在当前扇区的操作寄存器中时,进程进入死区。 当伺服区到达时,过程进入空闲状态。 响应于该状态,磁头被激活,以便能够对盘上没有扇区标识符的扇区进行读写操作。

    SEPP-Based deflection control circuit
    4.
    发明授权
    SEPP-Based deflection control circuit 失效
    基于SEPP的偏转控制电路

    公开(公告)号:US4409613A

    公开(公告)日:1983-10-11

    申请号:US354307

    申请日:1982-03-03

    CPC分类号: H04N9/09

    摘要: Deflection control apparatus for registering the electron beam, rasters of electrostatic-deflection pick-up tubes of a three-tube color television camera includes a compensating voltage generator with inputs connected to receive horizontal and vertical sawtooth deflection signals provided from a deflection signal generator, and outputs providing compensating voltages to adjust for size, skew, and rotation. A combining circuit is provided to add the deflecting signals to the respective compensating voltages to generate adjusted compensating voltages for application to respective electrostatic deflection plates of certain ones of the tubes. For each adjusted deflecting signal, the combining circuit includes a transistor circuit having an input electrode coupled to receive the associated compensating voltage and an output electrode connected through a load resistor to an output of the deflecting signal generator. A pair of SEPP-arranged transistors are provided with their bases connected to the output electrode of the transistor circuit and with their emitters coupled together, through like-value emitter resistors, to a respective deflection plate of one of the tubes. The SEPP-configured transistors permit a high impedance to be presented to the deflection signal generator to minimize the power consumption thereof, and a low resistance to be presented to the deflection plates, to keep the latter from undesirably integrating the deflection sawtooth voltages.

    摘要翻译: 用于对电子束进行配准的偏转控制装置,三管彩色电视摄像机的静电偏转拾取管的光栅包括:补偿电压发生器,具有连接的输入端,用于接收从偏转信号发生器提供的水平和垂直锯齿波偏转信号;以及 输出提供补偿电压以调整大小,偏斜和旋转。 提供组合电路以将偏转信号添加到相应的补偿电压以产生用于施加到某些管的各个静电偏转板的调整的补偿电压。 对于每个经调整的偏转信号,组合电路包括晶体管电路,其具有耦合以接收相关联的补偿电压的输入电极和通过负载电阻器连接到偏转信号发生器的输出的输出电极。 一对SEPP布置的晶体管被​​设置有它们的基极连接到晶体管电路的输出电极,并且它们的发射极通过同值发射极电阻耦合到一个管的相应的偏转板上。 SEPP配置的晶体管允许将高阻抗呈现给偏转信号发生器以最小化其功率消耗,以及将低电阻提供给偏转板,以防止偏转锯齿波电压的不期望的积分。

    ELECTRONIC DEVICE
    7.
    发明申请
    ELECTRONIC DEVICE 审中-公开
    电子设备

    公开(公告)号:US20130223025A1

    公开(公告)日:2013-08-29

    申请号:US13588100

    申请日:2012-08-17

    IPC分类号: H05K7/02

    CPC分类号: H05K7/02 G06F1/1656

    摘要: Provided is an electronic device including a housing, at least a part of which has conductive properties; a substrate on which a heating element is mounted and which has a ground pattern; and a spacer which is located between the housing and the ground pattern and which includes a main body portion having heat insulating properties and a conductive portion which is in contact with the ground pattern and the housing and which conducts current between the ground pattern and the housing.

    摘要翻译: 提供一种电子设备,其包括壳体,其至少一部分具有导电性能; 其上安装有加热元件并具有接地图案的基板; 以及间隔件,其位于壳体和接地图案之间,并且包括具有绝热性能的主体部分和与接地图案和壳体接触的导电部分并且在接地图案和壳体之间传导电流的间隔件 。

    IMAGE PROCESSING APPARATUS AND INFORMATION SETTING SYSTEM
    9.
    发明申请
    IMAGE PROCESSING APPARATUS AND INFORMATION SETTING SYSTEM 有权
    图像处理设备和信息设置系统

    公开(公告)号:US20130063761A1

    公开(公告)日:2013-03-14

    申请号:US13602572

    申请日:2012-09-04

    IPC分类号: G06K15/02

    摘要: An image processing apparatus includes a storing unit that stores setting information for operating the image processing apparatus; and an updating control unit that sends a request for obtaining predetermined differentiated setting information, which is a part of a set of setting information stored in a data processing apparatus in a differentiated manner in accordance with a predetermined differentiating criterion, to the data processing apparatus via a network, obtains the predetermined differentiated setting information from the data processing apparatus via the network and controls to update the setting information stored in the storing unit by the obtained predetermined differentiated setting information.

    摘要翻译: 图像处理装置包括:存储单元,存储用于操作图像处理装置的设置信息; 以及更新控制单元,其根据预定的微分准则向数据处理设备发送作为数据处理设备中存储的一组设置信息的一部分的预定差分设置信息的请求,经过 网络,经由网络从数据处理装置获得预定的差异化设置信息,并且控制通过获得的预定差分设置信息来更新存储在存储单元中的设置信息。

    Memory test apparatus and testing method
    10.
    发明授权
    Memory test apparatus and testing method 有权
    记忆测试仪器及测试方法

    公开(公告)号:US08345496B2

    公开(公告)日:2013-01-01

    申请号:US12990983

    申请日:2009-05-07

    申请人: Takashi Nakamura

    发明人: Takashi Nakamura

    IPC分类号: G11C29/00

    摘要: A refresh control circuit receives an interrupt signal, which is a request to refresh DRAM (Dynamic Random Access Memory) and which is asserted at predetermined timings. The refresh control circuit counts the number of times the interrupt signal is asserted, and asserts an interrupt subroutine start signal, which is an instruction to refresh the DRAM, in an idle state in which the DRAM is accessible from an external circuit, for a number of times that is equal to the number of times thus counted. When the interrupt subroutine start signal is asserted, a refresh circuit executes a predetermined interrupt subroutine, and supplies a refresh pattern to the DRAM.

    摘要翻译: 刷新控制电路接收中断信号,该中断信号是刷新DRAM(动态随机存取存储器)的请求,并且以预定的定时被断言。 刷新控制电路对中断信号被断言的次数进行计数,并且在可从外部电路访问DRAM的空闲状态下断言作为刷新DRAM的指令的中断子程序开始信号,数量 的次数等于这样计算的次数。 当中断子程序启动信号被断言时,刷新电路执行预定的中断子程序,并向DRAM提供刷新模式。