Apparatus and method for determining angular position of a rotating disk
    1.
    发明申请
    Apparatus and method for determining angular position of a rotating disk 审中-公开
    用于确定旋转盘的角位置的装置和方法

    公开(公告)号:US20060015280A1

    公开(公告)日:2006-01-19

    申请号:US10533737

    申请日:2003-10-16

    IPC分类号: G01R35/00

    摘要: This apparatus relates to a data carrier which rotates about an axis and on which a track is provided for containing said data, said track spiraling around a center, which apparatus comprises an angle measurer for many purposes. For obtaining this angular position information, for example an eccentricity measurer is used. The eccentricity is defined by the non-coincidence of the center and the axis. Application: The invention is well suited to small-size optical discs, CD systems, DVD systems, and Blu-Ray systems.

    摘要翻译: 该装置涉及围绕一个轴线旋转的数据载体,并且在该轨道上设置有用于容纳所述数据的轨道,所述轨道绕中心旋转,该装置包括用于许多目的的角度测量器。 为了获得该角度位置信息,例如使用偏心测量器。 偏心由中心和轴的不一致定义。 应用:本发明非常适用于小型光盘,CD系统,DVD系统和蓝光系统。

    Information Carrier, and System for Positioning Such an Information Carrier in an Apparatus
    2.
    发明申请
    Information Carrier, and System for Positioning Such an Information Carrier in an Apparatus 失效
    信息载体和用于在装置中定位这种信息载体的系统

    公开(公告)号:US20070277192A1

    公开(公告)日:2007-11-29

    申请号:US11568241

    申请日:2005-04-21

    IPC分类号: G11B7/0033

    CPC分类号: G11B7/0033 G11B7/0938

    摘要: The invention relates to an information carrier, and a system for positioning such an information carrier in an apparatus. This system comprises an optical element (102) for generating a periodic array of light spots (103) intended to be applied to an information carrier (101), said information carrier (101) comprising a first periodic structure (108) intended to interfere with said periodic array of light spots (103) for generating a first Moiré pattern, and a second periodic structure (109) intended to interfere with said periodic array of light spots (103) for generating a second Moiré pattern, analysis means for deriving from said first and second Moiré patterns, the angle value (S) between said periodic array of light spots (103) and said information carrier (101), and actuation means (AC1-AC2-AC3) for adjusting the angular position of said information carrier (101) with respect to said array of light spots (103), from control signals (114) derived based on said angle value (S).

    摘要翻译: 本发明涉及一种信息载体,以及用于将这种信息载体定位在装置中的系统。 该系统包括用于产生旨在施加到信息载体(101)的光点周期性阵列(103)的光学元件(102),所述信息载体(101)包括旨在干扰 所述周期阵列的光点(103)用于产生第一莫尔图案,以及第二周期性结构(109),其旨在干扰所述周期性阵列的光点(103)以产生第二莫尔图案,分析装置用于从所述 第一和第二莫尔图案,所述光点周期阵列(103)和所述信息载体(101)之间的角度值(S)以及用于调节所述光点(103)的角位置的致动装置(AC 1 -AC 2 -AC 3) 信息载体(101)相对于所述光点阵列(103)从根据所述角度值(S)导出的控制信号(114)。

    Repetitive controller and drive servo system including it
    3.
    发明申请
    Repetitive controller and drive servo system including it 失效
    重复控制器和驱动伺服系统包括它

    公开(公告)号:US20060061903A1

    公开(公告)日:2006-03-23

    申请号:US10538628

    申请日:2003-12-12

    申请人: Thomas De Hoog

    发明人: Thomas De Hoog

    IPC分类号: G11B5/596

    摘要: The invention generally relates to the field of repetitive controllers for suppressing periodic signals with half-wave symmetry and, more specifically, to a repetitive controller having the form of a memory loop fed with a periodic signal of period NT and in which the memory size includes N/2 memory elements, the feedback connection is negative and a factor of −½ is provided at the output of the memory loop. Such a repetitive controller may be used for instance in the disturbance compensation module of a drive servo system in a recording and reproducing apparatus including a head for recording data on a recording medium.

    摘要翻译: 本发明一般涉及用于抑制具有半波对称性的周期性信号的重复控制器的领域,更具体地说,涉及具有周期NT的周期性信号的存储环路的形式的重复控制器,其中存储器大小包括 N / 2个存储器元件,反馈连接是负的,并且在存储器回路的输出处提供了1/2的因子。 这样的重复控制器例如可以用在包括用于在记录介质上记录数据的记录头的记录和再现装置中的驱动伺服系统的干扰补偿模块中。

    Disk drive with improved tray control
    5.
    发明申请
    Disk drive with improved tray control 有权
    磁盘驱动器具有改进的托盘控制

    公开(公告)号:US20060161929A1

    公开(公告)日:2006-07-20

    申请号:US10562882

    申请日:2004-06-25

    IPC分类号: G11B17/04 G11B17/03 G11B33/02

    CPC分类号: G11B17/056 G11B17/047

    摘要: A disk drive comprising a tray (TR) for receiving a disk, the tray (TR) being supported for movement between a first position within a casing (CS) of the disk drive and a second position projecting from the casing (CS), an electric motor for moving the tray (TR) between the first and second positions, and regulation means for regulating an electric current through the motor for regulating the rotation of the motor. The regulation means comprises detection means for detecting a back-electromotive voltage produced during rotation of the motor for deriving position information of the tray (TR) with respect to the first and second positions.

    摘要翻译: 一种盘驱动器,包括用于接收盘的托盘(TR),托盘(TR)被支撑用于在盘驱动器的壳体(CS)内的第一位置和从壳体(CS)突出的第二位置之间移动, 用于在第一和第二位置之间移动托盘(TR)的电动马达和用于调节通过马达的电流以调节马达的旋转的调节装置。 调节装置包括检测装置,用于检测在马达旋转期间产生的反向电动势,以相对于第一和第二位置导出托盘(TR)的位置信息。

    Information Carrier, and System for Positioning Such an Information Carrier in a Reading and/or Writing Apparatus
    6.
    发明申请
    Information Carrier, and System for Positioning Such an Information Carrier in a Reading and/or Writing Apparatus 失效
    信息载体和用于在阅读和/或书写装置中定位这种信息载体的系统

    公开(公告)号:US20070220538A1

    公开(公告)日:2007-09-20

    申请号:US11568243

    申请日:2005-04-21

    IPC分类号: G11B7/0033

    CPC分类号: G11B7/0033 G11B7/0938

    摘要: The invention relates to an information carrier (101) intended to be read and/or written by a periodic array of light spots, said information carrier (101) comprising a data area (105) defined by a set of elementary data areas, a first periodic structure (108) intended to interfere with said periodic array of light spots for generating a first moiré pattern, a second periodic structure (109) intended to interfere with said periodic array of light spots for generating a second moiré pattern, said second periodic structure (109) being arranged perpendicularly to said first periodic structure (108). The invention also relates to an apparatus for reading and/or writing said information carrier (101).

    摘要翻译: 本发明涉及一种旨在由光点的周期性阵列读取和/或写入的信息载体(101),所述信息载体(101)包括由一组基本数据区域定义的数据区域(105),第一 旨在干扰所述周期性阵列的光点以产生第一莫尔图案的周期性结构(108),旨在干扰所述周期性阵列的光斑以产生第二莫尔图案的第二周期性结构(109),所述第二周期性结构 (109)垂直于所述第一周期性结构(108)布置。 本发明还涉及用于读取和/或写入所述信息载体(101)的装置。