Bit Synchronization Detection Means
    5.
    发明申请
    Bit Synchronization Detection Means 审中-公开
    位同步检测手段

    公开(公告)号:US20080037394A1

    公开(公告)日:2008-02-14

    申请号:US10557350

    申请日:2003-05-27

    IPC分类号: G11B5/09

    摘要: Detection means for detecting information in a signal, comprising integration means for integrating the signal over time such that the integration means is periodically reset at about the start time reference of a periodic time interval; and a sample&hold circuit for periodically sampling and holding the integrated signal (int) at about an end time reference of the periodic time interval and thereby delivering a further signal (fs). The detection means further comprises a chain (CHDL) of signal time delay elements, an input of the chain (CHDL) being coupled to receive the further signal (fs); and combining means (CBMNS) having combining inputs coupled to signal taps of the chain (CHDL), such that the number of the combining inputs and the position of coupling the combining inputs to the signal taps of the chain (CHDL) correspond to the information in the signal.

    摘要翻译: 用于检测信号中的信息的检测装置,包括用于随时间积分信号的积分装置,使得积分装置周期性地在周期性时间间隔的开始时间基准上复位; 以及用于在约周期时间间隔的结束时间基准周期性地采样和保持积分信号(int)并从而传送另外的信号(fs)的采样和保持电路。 所述检测装置还包括信号时间延迟元件的链(CHDL),所述链(CHDL)的输入被耦合以接收所述另外的信号(fs); 以及具有耦合到链路(CHDL)的信号抽头的组合输入的组合装置(CBMNS),使得组合输入的数量和将组合输入耦合到链路(CHDL)的信号抽头的位置对应于信息 在信号中。

    Optical recording medium capable of recording three data values
    10.
    发明授权
    Optical recording medium capable of recording three data values 失效
    能够记录三个数据值的光学记录介质

    公开(公告)号:US07388826B2

    公开(公告)日:2008-06-17

    申请号:US10487600

    申请日:2002-10-18

    IPC分类号: G11B7/24

    摘要: An optical disc medium 10 having a wobbled track groove 12 includes three wobble patterns including a flat wobble pattern, a positive pulse wobble pattern, and a negative pulse wobble pattern. In the flat wobble pattern, the amplitude of the wobble from the lengthwise direction of the track groove is zero such that the track groove is flat. In the positive pulse wobble pattern, the amplitude of the wobble from the length-wise direction of the track groove is positive such that the track groove is wobbled in a first direction perpendicular to the length-wise direction. Further, in the negative pulse wobble pattern, the amplitude of the wobble from the lengthwise direction of the track groove is negative such that the track groove is wobbled in a second direction opposite to the first direction. Then, three data values can be recorded using three distinctive wobble patterns.

    摘要翻译: 具有摆动轨道槽12的光盘介质10包括三个摆动图案,包括平摆动图案,正脉冲摆动图案和负脉冲摆动图案。 在平坦摆动图案中,轨道槽的纵向的摆动幅度为零,使得轨道槽平坦。 在正脉冲摆动图案中,从轨道槽的长度方向的摆动的振幅为正,使得轨道槽在与长度方向垂直的第一方向上摆动。 此外,在负脉冲摆动图案中,从轨道槽的长度方向的摆动的振幅为负,使得轨道槽在与第一方向相反的第二方向上摆动。 然后,可以使用三种不同的摆动模式记录三个数据值。