会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • Optical disk drive
    • 光盘驱动器
    • US06356522B1
    • 2002-03-12
    • US09406796
    • 1999-09-28
    • Takeharu YamamotoKatsuya WatanabeMitsuro MoriyaHiromichi IshibashiTakashi Kishimoto
    • Takeharu YamamotoKatsuya WatanabeMitsuro MoriyaHiromichi IshibashiTakashi Kishimoto
    • G11B700
    • G11B27/24G11B7/0037G11B7/08517G11B2220/216G11B2220/218G11B2220/2562G11B2220/2575
    • In performing CLV readout, a target frequency is corrected based on current and target numbers of revolutions of a disk motor during a seek operation, thereby controlling the frequency of a read clock signal at a value approximately equal to the corrected target frequency. In performing CAV readout on the other hand, the frequency of the read clock signal is approximately equalized with a data read frequency at a seek destination. By performing these frequency control operations, data reading can be started quickly enough after the seek operation is finished. In reading out information from a recordable disk with wobbling tracks on a data portion, frequency control is performed using a wobble signal with respect to an unrecorded data portion, and phase locking control is performed using a data signal with respect to an address portion. In this manner, an address can be read out constantly.
    • 在执行CLV读出时,基于搜索操作期间的盘式电动机的转数的当前和目标数来校正目标频率,从而将读取时钟信号的频率控制在大致等于校正的目标频率的值。 另一方面,在执行CAV读出时,读取时钟信号的频率近似地与搜索目的地的数据读取频率相等。 通过执行这些频率控制操作,可以在搜索操作完成之后足够快地开始数据读取。 在从数据部分的摆动磁迹的可记录磁盘中读出信息时,使用相对于未记录数据部分的摆动信号进行频率控制,并且使用相对于地址部分的数据信号执行相位锁定控制。 以这种方式,可以不断地读出地址。