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    • 17. 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
    • 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
    • US06556521B1
    • 2003-04-29
    • US09629050
    • 2000-07-31
    • Seong-sin JooIn-sik ParkByung-in MaChong-sam ChungJang-hoon YooJung-wan KoKyung-geun LeeJoong-eon Seo
    • Seong-sin JooIn-sik ParkByung-in MaChong-sam ChungJang-hoon YooJung-wan KoKyung-geun LeeJoong-eon Seo
    • G11B700
    • G11B7/00718G11B7/0901G11B7/0938G11B7/0941G11B7/0956
    • 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.
    • 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。