METHOD FOR DETECTING SERVO ERROR, APPARATUS THEREFOR, DISK WHICH MAINTAINS QUALITY OF SERVO ERROR SIGNAL, METHOD OF CONTROLLING SERVO OF DISK RECORDING/REPRODUCING APPARATUS, METHOD OF DETECTING TRACKING ERROR, AND METHOD OF DETECTING TILT ERROR

    公开(公告)号:US07167424B2

    公开(公告)日:2007-01-23

    申请号:US10385472

    申请日:2003-03-12

    IPC分类号: G11B7/00

    摘要: A method of detecting a servo error, an apparatus therefor, a disk which maintains quantity of a servo error signal, a method of controlling a servo of an apparatus for recording data on and reproducing data from a disk, a method of detecting the tracking error, and a method of detecting tilt error of the apparatus. The apparatus for recording data on and reproducing data from the disk in which a recording area is divided into sectors, each sector has a header for indicating an address, each header has a first header and a second header which are recorded to deviate from the center of the track in opposite directions, and the first header and the second header have address areas in which the addresses of sectors are recorded and synchronous signal areas in which synchronous signals for detecting the address signals recorded in the address area are recorded, includes a reproducing signal generator for generating a reproducing signal including sum signals V1 and V2 of radial pairs, a sum signal RF_sum, and a push-pull signal RF_pp from an optical signal reflected from the disk, a header area detector for generating a header area signal including a header area from the reproducing signal received from the reproducing signal generator, a first synchronous signal level detector for receiving the output of the reproducing signal generator and detecting a magnitude Ivfo1 of a first synchronous signal in the first header by being synchronized with the header area signal received from the header area detector, a second synchronous signal level detector for receiving the output of the reproducing signal generator and detecting a magnitude Ivfo3 of a second synchronous signal in the second header by being synchronized with the header area signal received from the header area detector, and a balance calculator for calculating the balance of the magnitude Ivfo1 of the first synchronous signal detected by the first synchronous signal level detector and the magnitude Ivfo3 of the second synchronous signal detected by the second synchronous signal level detector. As a result, it is possible for the recording/reproducing apparatus to stably control a servo therein and maintain an optimal recording/reproducing state since the apparatus for detecting the servo error correctly detects the servo error state of the disk.

    METHOD FOR DETECTING SERVO ERROR, APPARATUS THEREFOR, DISK WHICH MAINTAINS QUALITY OF SERVO ERROR SIGNAL, METHOD OF CONTROLLING SERVO OF DISK RECORDING/REPRODUCING APPARATUS, METHOD OF DETECTING TRACKING ERROR, AND METHOD OF DETECTING TILT ERROR
    24.
    发明授权
    METHOD FOR DETECTING SERVO ERROR, APPARATUS THEREFOR, DISK WHICH MAINTAINS QUALITY OF SERVO ERROR SIGNAL, METHOD OF CONTROLLING SERVO OF DISK RECORDING/REPRODUCING APPARATUS, METHOD OF DETECTING TRACKING ERROR, AND METHOD OF DETECTING TILT ERROR 有权
    用于检测服务器错误的方法,其装置,维护伺服错误信号质量的磁盘,控制磁盘记录/再现装置的服务的方法,检测跟踪错误的方法和检测倾斜错误的方法

    公开(公告)号:US06556520B1

    公开(公告)日:2003-04-29

    申请号:US09629049

    申请日:2000-07-31

    IPC分类号: G11B700

    摘要: A method of detecting a servo error, an apparatus therefor, a disk which maintains quantity of a servo error signal, a method of controlling a servo of an apparatus for recording data on and reproducing data from a disk, a method of detecting the tracking error, and a method of detecting tilt error of the apparatus. The apparatus for recording data on and reproducing data from the disk in which a recording area is divided into sectors, each sector has a header for indicating an address, each header has a first header and a second header which are recorded to deviate from the center of the track in opposite directions, and the first header and the second header have address areas in which the addresses of sectors are recorded and synchronous signal areas in which synchronous signals for detecting the address signals recorded in the address area are recorded, includes a reproducing signal generator, a sum signal disk, a header area detector, a first synchronous signal level detector a first, a second synchronous signal level detector, and a balance calculator for calculating the balance of the magnitude Ivfo1 of the first synchronous signal detected by the first synchronous signal level detector and the magnitude Ivfo3 of the second synchronous signal detected by the second synchronous signal level detector.

    摘要翻译: 一种检测伺服误差的方法,其装置,保持伺服误差信号量的盘,控制用于从盘记录数据和从盘再现数据的装置的伺服的方法,检测跟踪误差的方法 以及检测装置的倾斜误差的方法。 用于在盘中记录数据并从其再现数据的装置,其中记录区被划分为扇区,每个扇区具有用于指示地址的标题,每个标题具有被记录为偏离中心的第一标题和第二标题 并且第一标题和第二标题具有其中记录了扇区的地址的地址区域,并且记录了用于检测记录在地址区域中的地址信号的同步信号的同步信号区域,包括再现 信号发生器,和信号盘,标题区检测器,第一同步信号电平检测器,第一,第二同步信号电平检测器和用于计算由第一同步信号电平检测器检测的第一同步信号的幅度Ivfo1的平衡的平衡计算器 同步信号电平检测器和由第二同步信号电平检测的第二同步信号的幅度Ivfo3 探测器。

    Compatible optical pickup applying tilt to objective lens in proportion to radial movement of objective lens
    25.
    发明授权
    Compatible optical pickup applying tilt to objective lens in proportion to radial movement of objective lens 失效
    与物镜的径向移动成比例的兼容的光学拾取器对物镜施加倾斜

    公开(公告)号:US07372794B2

    公开(公告)日:2008-05-13

    申请号:US10454838

    申请日:2003-06-05

    IPC分类号: G11B7/09

    摘要: A compatible optical pickup compatibly using a high density recording medium and at least one low density recording medium, includes an objective lens to form a light spot suitable for use on a recording surface of the high density recording medium by focusing a corresponding incident light beam with a high NA suitable for the high density recording medium and a light spot suitable for use on another recording surface of the low density recording medium by focusing another corresponding incident light beam, and an actuator provided to apply tilt to the objective lens. The light beam for the low density recording medium is incident on the objective lens as a divergent beam. When the objective lens is shifted in a radial direction, a tilt is applied to the objective lens corresponding to the shift.

    摘要翻译: 兼容地使用高密度记录介质和至少一种低密度记录介质的兼容光学拾取器包括:物镜,用于通过将相应的入射光束聚焦在该高分辨率记录介质的记录表面上形成适于使用的光点 适合于高密度记录介质的高NA和通过聚焦另一相应的入射光束适用于低密度记录介质的另一个记录表面上的光点,以及设置成向物镜施加倾斜的致动器。 用于低密度记录介质的光束作为发散光束入射在物镜上。 当物镜沿径向移动时,对应于偏移的物镜施加倾斜。

    OPTICAL INFORMATION MEDIUM METHOD
    29.
    发明申请
    OPTICAL INFORMATION MEDIUM METHOD 审中-公开
    光信息中介方法

    公开(公告)号:US20080074971A1

    公开(公告)日:2008-03-27

    申请号:US11952326

    申请日:2007-12-07

    IPC分类号: G11B7/00

    摘要: A method relative to an optical information storage medium including a lead-in area, a lead-out area, and a user data area between the lead-in and lead-out areas and in which user data is recorded. Pits are formed in the lead-in area, the user data area, and the lead-out area, and a track pitch in all or a portion of the lead-in area is different from a track pitch in the remaining area of the optical information storage medium.

    摘要翻译: 一种相对于光学信息存储介质的方法,所述光学信息存储介质包括在导入区和导出区之间的导入区,导出区和用户数据区,并且记录用户数据。 在导入区,用户数据区和导出区形成凹坑,并且导入区的全部或一部分中的轨道间距与光学剩余区域中的轨道间距不同 信息存储介质。

    Optical memory with embedded optical recording medium
    30.
    发明申请
    Optical memory with embedded optical recording medium 审中-公开
    具有嵌入式光记录介质的光学存储器

    公开(公告)号:US20070086256A1

    公开(公告)日:2007-04-19

    申请号:US11580930

    申请日:2006-10-16

    IPC分类号: G11C13/04

    摘要: An optical memory includes a substrate and an optical recording layer embedded in a part of the substrate. At least an upper area of the substrate where the optical recording layer is embedded is transparent, and the optical recording layer has a size to read out data recorded in the optical recording layer without using a feeding operation of an objective lens optical system.

    摘要翻译: 光学存储器包括衬底和嵌入在衬底的一部分中的光记录层。 至少嵌入光记录层的基板的上部区域是透明的,并且光学记录层具有读取记录在光学记录层中的数据的尺寸,而不使用物镜光学系统的进给操作。