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
    6.
    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。

    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
    8.
    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:US06556521B1

    公开(公告)日:2003-04-29

    申请号:US09629050

    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 RF_sum, and a push-pull signal RF_pp from an optical signal reflected from the disk, a header area detector, a first synchronous signal level detector, 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RF_sum和从盘反射的光信号的推挽信号RF_pp,标题区检测器,第一同步信号电平检测器,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的平衡和秒的幅度Ivfo3 由第二同步信号电平检测器检测到的同步信号。

    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
    9.
    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:US06721243B2

    公开(公告)日:2004-04-13

    申请号:US10378904

    申请日:2003-03-05

    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. 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.

    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和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。 结果,由于用于检测伺服误差的装置正确地检测到盘的伺服错误状态,所以记录/再现装置可以稳定地控制其中的伺服并保持最佳的记录/再现状态。

    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:US06469979B1

    公开(公告)日:2002-10-22

    申请号:US09385415

    申请日:1999-08-30

    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 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.