Method for error correction and circuit for realizing same
    3.
    发明授权
    Method for error correction and circuit for realizing same 失效
    误差校正方法及其实现方法

    公开(公告)号:US5325364A

    公开(公告)日:1994-06-28

    申请号:US412514

    申请日:1989-09-26

    摘要: An error correction circuit which includes a specification circuit for specifying erroneous portions in a first data set reproduced from a recording medium, a register for storing the reproduced first data set including the erroneous portions thus specified and a reproducing circuit responsive to the reproduced first data set for reproducing again the first data set from the recording medium to obtain retry data, when there exist erroneous portions in the reproduced first data set stored in the register. The correction circuit also includes a data replace circuit, connected to receive the retry data, for replacing information at the specified erroneous portions in the reproduced first data set stored in the register by information at corresponding portions in the retry data.

    摘要翻译: 一种误差校正电路,包括用于指定从记录介质再现的第一数据组中的错误部分的指定电路,用于存储包括如此指定的错误部分的再现的第一数据组的寄存器和响应于再现的第一数据集的再现电路 当存储在寄存器中的再现的第一数据组中存在错误部分时,再次从记录介质再现第一数据组以获得重试数据。 校正电路还包括连接以接收重试数据的数据替换电路,用于通过重试数据中的相应部分处的信息替换存储在寄存器中的再现的第一数据集中的指定错误部分处的信息。

    Current driving circuit
    4.
    发明授权
    Current driving circuit 失效
    电流驱动电路

    公开(公告)号:US4600965A

    公开(公告)日:1986-07-15

    申请号:US580711

    申请日:1984-02-16

    摘要: In a current driving circuit which supplies a two-terminal load with current to be inverted in accordance with input information, a current driving circuit according to the present invention comprises a load whose one-side terminal has its potential fixed, circuitry to supply a non-fixed side terminal of the load with a direct current, and circuitry to supply the non-fixed side terminal with a current having a magnitude double that of the direct current and a polarity opposite to that of the direct current, while switching it in accordance with input information. Owing to such construction, the number of terminals to be led out from the loads can be reduced, and a load current can be inverted at high speed. In addition, reliability can be enhanced because the assembling process is simplified.

    摘要翻译: 在根据输入信息向两端负载提供要反相的电流的电流驱动电路中,根据本发明的电流驱动电路包括其一侧端子具有其电位固定的电路, 具有直流电的负载的固定侧端子,以及用于向非固定侧端子提供具有与直流电流相反的直流电压和极性两倍的电流的电流的电路,同时根据 与输入信息。 由于这样的结构,可以减少从负载引出的端子的数量,并且可以高速地反转负载电流。 此外,由于组装过程简化,可以提高可靠性。

    Circuit for detecting variation of resistance of a variable-resistance
element
    5.
    发明授权
    Circuit for detecting variation of resistance of a variable-resistance element 失效
    用于检测可变电阻元件的电阻变化的电路

    公开(公告)号:US4716306A

    公开(公告)日:1987-12-29

    申请号:US639093

    申请日:1984-08-09

    CPC分类号: G01R27/02 H03K17/9517

    摘要: A circuit for detecting the variation of resistance of a variable-resistance element comprises a pair of grounded-base transistors with their base electrodes provided with different base voltages and with their emitter electrodes connected to both terminals of the variable-resistance element so that the voltage between both terminals of the element is kept constant. The current density of the variable-resistance element does not vary when the resistance of the variable-resistance element varies, whereby the lifetime of the element can be prolonged.

    摘要翻译: 用于检测可变电阻元件的电阻变化的电路包括一对接地基极晶体管,其基极具有不同的基极电压,并且其发射电极连接到可变电阻元件的两端,使得电压 在元件的两个端子之间保持恒定。 当可变电阻元件的电阻变化时,可变电阻元件的电流密度不变,从而可以延长元件的寿命。

    Array disk subsystem
    6.
    发明授权
    Array disk subsystem 失效
    阵列磁盘子系统

    公开(公告)号:US06243824B1

    公开(公告)日:2001-06-05

    申请号:US08355210

    申请日:1994-12-09

    IPC分类号: H02H305

    摘要: An array disk subsystem including a command selector for separating a signal from a host into a data item and a command, a data dividing unit for subdividing the data item, an ECC generator for producing an ECC for each of the obtained subdata items, a group of data disks for respectively storing thereon the subdata items and the ECCs, a command interpreting unit for interpreting the command, an I/O counter for counting I/O commands in the command, a backup processor for requesting a backup command based on count information of the I/O counter, and a backup unit responsive to the backup command for sequentially reading the subdata items and the ECCs from the data disks to record therein the subdata items and the ECCs.

    摘要翻译: 一种阵列磁盘子系统,包括用于将信号从主机分离为数据项和命令的命令选择器,用于细分数据项的数据划分单元,用于为每个所获得的子数据项产生ECC的ECC产生器, 用于分别存储子数据项和ECC的数据磁盘,用于解释命令的命令解释单元,用于对命令中的I / O命令进行计数的I / O计数器,用于根据计数信息请求备份命令的备份处理器 的I / O计数器,以及响应于备份命令的备份单元,用于从数据盘顺序读取子数据项和ECC,以在其中记录子数据项和ECC。

    Array disk subsystem
    7.
    发明授权
    Array disk subsystem 失效
    阵列磁盘子系统

    公开(公告)号:US5402428A

    公开(公告)日:1995-03-28

    申请号:US630210

    申请日:1990-12-19

    摘要: An array disk subsystem including a command selector for separating a signal from a host into a data item and a command, a data dividing unit for subdividing the data item, an ECC generator for producing an ECC for each of the obtained subdata items, a group of data disks for respectively storing thereon the subdata items and the ECCs, a command interpreting unit for interpreting the command, an I/O counter for counting I/O commands in the command, a backup processor for requesting a backup command based on count information of the I/O counter, and a backup unit responsive to the backup command for sequentially reading the subdata items and the ECCs from the data disks to record therein the subdata items and the ECCs.

    摘要翻译: 一种阵列磁盘子系统,包括用于将信号从主机分离为数据项和命令的命令选择器,用于细分数据项的数据划分单元,用于为每个所获得的子数据项产生ECC的ECC产生器, 用于分别存储子数据项和ECC的数据磁盘,用于解释命令的命令解释单元,用于对命令中的I / O命令进行计数的I / O计数器,用于根据计数信息请求备份命令的备份处理器 的I / O计数器,以及响应于备份命令的备份单元,用于从数据盘顺序读取子数据项和ECC,以在其中记录子数据项和ECC。

    Magnetic transducer using magnetoresistance effect
    9.
    发明授权
    Magnetic transducer using magnetoresistance effect 失效
    磁传感器采用磁阻效应

    公开(公告)号:US4663684A

    公开(公告)日:1987-05-05

    申请号:US694764

    申请日:1985-01-25

    IPC分类号: G01R33/09 G11B5/39 G11B5/30

    摘要: Disclosed is a magnetic transducer using a magnetoresistance effect, comprising a magnetoresistive film, a hard magnetic film for applying a transverse biasing magnetic field thereto, and a conductive film through which current for applying the transverse biasing magnetic field to the magnetoresistive film flows. The conductive film may be either in electrical contact with or in electrical insulation from the magnetoresistive film. In this magnetic transducer, even when the heights of the respective constituents have changed, the transverse biasing magnetic field to be applied does not change considerably, and an optimum bias field strength is readily attained.

    摘要翻译: 公开了一种使用磁阻效应的磁传感器,包括磁阻膜,用于向其施加横向偏置磁场的硬磁膜,以及用于向磁阻膜施加横向偏置磁场的电流的导电膜。 导电膜可以与磁阻膜电接触或者与电绝缘。 在这种磁换能器中,即使各构成部件的高度发生变化,所施加的横向偏置磁场也不会发生显着变化,容易获得最佳的偏置磁场强度。

    Data reconstruction method and system wherein timing of data
reconstruction is controlled in accordance with conditions when a
failure occurs
    10.
    发明授权
    Data reconstruction method and system wherein timing of data reconstruction is controlled in accordance with conditions when a failure occurs 失效
    数据重建方法和系统,其中根据故障发生时的状况来控制数据重建的定时

    公开(公告)号:US6161194A

    公开(公告)日:2000-12-12

    申请号:US162444

    申请日:1998-09-29

    摘要: A storage data reconstruction system including a plurality of storage units for storing therein divided data, the plural independent storage units forming a set; units for storing therein ECC data corresponding to the divided data; a spare storage unit for storing therein reconstructed data; an I/O-reconstruction control circuit; a timer; a data reconstructing table for a storage unit which has failed and a circuit for reconstructing faulty data. When a failure occurs in any of the storage units, the failure is detected by an error check, a state of the failure is discriminated, a preferred processing suitable for the state of the failure is selected from a processing of a normal access or read/write, and a data reconstruction processing, and the selected processing is carried out, or the frequency of the processing of the normal access or read/write and the data reconstruction processing, or the ratio of the amount of the data reconstruction processing within a unit time, is set. The time taken to reconstruct the faulty data does not exceed a fixed period of time.

    摘要翻译: 一种存储数据重建系统,包括:多个存储单元,用于在其中存储划分的数据,所述多个独立存储单元形成一组; 用于存储与分割数据相对应的ECC数据的单元; 用于存储重建数据的备用存储单元; I / O重构控制电路; 一个计时器 用于存储单元的故障的数据重建表和用于重建故障数据的电路。 当在任何存储单元中发生故障时,通过错误检查来检测到故障,判别出故障状态,从正常访问或读/写操作的处理中选择适合于故障状态的优选处理, 写入和数据重建处理,并且执行所选择的处理,或正常访问或读/写和数据重构处理的处理频率,或单位内的数据重构处理量的比率 时间,设置。 重建故障数据所用的时间不超过固定的时间段。