Output adjustment method for lens position sensor of optical disk device and optical disk device thereof
    1.
    发明授权
    Output adjustment method for lens position sensor of optical disk device and optical disk device thereof 失效
    光盘装置及其光盘装置的透镜位置传感器的输出调整方法

    公开(公告)号:US07397737B2

    公开(公告)日:2008-07-08

    申请号:US10977018

    申请日:2004-10-29

    IPC分类号: G11B7/00

    摘要: A position sensor detects a position of an objective lens for irradiating light onto an optical disk. An output adjustment of the position sensor is used for correcting characteristics change due the change with the passage of time. The position of an objective lens and the output of a position sensor are measured at a reference time, the ratio at the neutral point is determined in advance, and when the device is used, the position of the objective lens and the output of the position sensor are measured. The output level at the neutral point during using the device is calculated from the measurement result and the ratio at the neutral point.

    摘要翻译: 位置传感器检测用于将光照射到光盘上的物镜的位置。 位置传感器的输出调整用于校正随时间的变化引起的特性变化。 在基准时刻测量物镜的位置和位置传感器的输出,预先确定中性点的比例,当使用该装置时,物镜的位置和位置的输出 传感器进行测量。 使用设备时中性点的输出电平由测量结果和中性点的比值计算。

    Output adjustment method for lens position sensor of optical disk device and optical disk device thereof
    2.
    发明申请
    Output adjustment method for lens position sensor of optical disk device and optical disk device thereof 失效
    光盘装置及其光盘装置的透镜位置传感器的输出调整方法

    公开(公告)号:US20050226109A1

    公开(公告)日:2005-10-13

    申请号:US10977018

    申请日:2004-10-29

    摘要: A position sensor detects a position of an objective lens for irradiating light onto an optical disk. An output adjustment of the position sensor is used for correcting characteristics change due the change with the passage of time. The position of an objective lens and the output of a position sensor are measured at a reference time, the ratio at the neutral point is determined in advance, and when the device is used, the position of the objective lens and the output of the position sensor are measured. The output level at the neutral point during using the device is calculated from the measurement result and the ratio at the neutral point.

    摘要翻译: 位置传感器检测用于将光照射到光盘上的物镜的位置。 位置传感器的输出调整用于校正随时间的变化引起的特性变化。 在基准时刻测量物镜的位置和位置传感器的输出,预先确定中性点的比例,并且当使用该装置时,物镜的位置和位置的输出 传感器进行测量。 使用设备时中性点的输出电平由测量结果和中性点的比值计算。

    CONTROL APPARATUS, STORAGE DEVICE, AND TIMEOUT-POSSIBILITY NOTIFYING METHOD
    3.
    发明申请
    CONTROL APPARATUS, STORAGE DEVICE, AND TIMEOUT-POSSIBILITY NOTIFYING METHOD 审中-公开
    控制装置,存储装置和超时可能性通知方法

    公开(公告)号:US20090296251A1

    公开(公告)日:2009-12-03

    申请号:US12350646

    申请日:2009-01-08

    IPC分类号: G11B27/36

    摘要: A magnetic disk device performs test write on a test cylinder to check the state of each head before system information is stored in disks. The magnetic disk device then determines the state of each head based on the test write results stored in a test-write-result table. When a head is defective, the magnetic disk device notifies a host of the possibility of the occurrence of a timeout as a fault prediction.

    摘要翻译: 磁盘设备在测试磁盘上执行测试写入,以在系统信息存储在磁盘中之前检查每个磁头的状态。 然后,磁盘装置基于存储在测试写入结果表中的测试写入结果来确定每个头部的状态。 当磁头发生故障时,磁盘装置将主机发生超时的可能性通知为故障预测。

    CONTROL APPARATUS, STORAGE DEVICE, AND SYSTEM-INFORMATION STORAGE METHOD
    4.
    发明申请
    CONTROL APPARATUS, STORAGE DEVICE, AND SYSTEM-INFORMATION STORAGE METHOD 审中-公开
    控制装置,存储装置和系统信息存储方法

    公开(公告)号:US20090296253A1

    公开(公告)日:2009-12-03

    申请号:US12359082

    申请日:2009-01-23

    IPC分类号: G11B27/036 G11B21/02

    摘要: A magnetic disk device performs test write to check the state of each of heads before system information is stored in a disk and, based on the result of the test write, stores the system information sequentially with the heads from one in good state. After a predetermined time has elapsed, the magnetic disk device suspends the process of storing the system information.

    摘要翻译: 磁盘装置在将系统信息存储在磁盘中之前执行测试写入以检查每个磁头的状态,并且基于测试写入的结果,顺序地存储系统信息,其中磁头处于良好状态。 在经过预定时间之后,磁盘装置暂停存储系统信息的处理。

    Method and apparatus for reproducing data from a recording medium using light beam with adjustable power
    6.
    发明授权
    Method and apparatus for reproducing data from a recording medium using light beam with adjustable power 失效
    使用具有可调节功率的光束从记录介质再现数据的方法和装置

    公开(公告)号:US06765849B2

    公开(公告)日:2004-07-20

    申请号:US09961974

    申请日:2001-09-24

    IPC分类号: G11B700

    摘要: A storage apparatus uses a light beam to reproduce information from a recording medium having an information region with a recording format which includes a header including position information and a recording field including a data field for recording data. The storage apparatus is provided with a light source for emitting the light beam, and a control section for controlling a power L2 of the light beam in a vicinity of a start of the recording field to become higher than a power L3 at the data field of the recording field.

    摘要翻译: 存储装置使用光束从具有包括包括位置信息的标题和包括用于记录数据的数据字段的记录字段的记录格式的信息区域的记录介质再现信息。 存储装置设置有用于发射光束的光源,以及控制部分,用于控制在记录场开始附近的光束的功率L2变得高于数据场的功率L3 录音领域。

    CONTROL APPARATUS, STORAGE DEVICE, AND SYSTEM-INFORMATION STORAGE METHOD
    7.
    发明申请
    CONTROL APPARATUS, STORAGE DEVICE, AND SYSTEM-INFORMATION STORAGE METHOD 审中-公开
    控制装置,存储装置和系统信息存储方法

    公开(公告)号:US20090296252A1

    公开(公告)日:2009-12-03

    申请号:US12350766

    申请日:2009-01-08

    IPC分类号: G11B27/36 G11B21/02

    CPC分类号: G11B5/455 G11B19/041

    摘要: A magnetic disk device performs test write before storing system information to check the state of each head. The magnetic disk device then stores test write results in a test-write-result table of a RAM. The magnetic disk device then determines whether the number of defective heads is equal to or greater than a predetermined number. When the number of defective heads is equal to or greater than the predetermined number, the magnetic disk device suspends the process of storing the system information. When the number of defective heads is less than the predetermined number, the magnetic disk device refers to the test write results stored in the test-write-result table and performs write only with a head determined as normal.

    摘要翻译: 在存储系统信息以检查每个头的状态之前,磁盘装置执行测试写入。 然后,磁盘设备将测试写入结果存储在RAM的测试写入结果表中。 然后,磁盘装置确定有缺陷头的数量是否等于或大于预定数量。 当有缺陷头的数量等于或大于预定数量时,磁盘装置暂停存储系统信息的处理。 当有缺陷的磁头的数量小于预定数量时,磁盘装置参考存储在测试写入结果表中的测试写入结果,并且仅用正常确定的磁头执行写入。