Single motor connected to an optical pick up unit and an optical print head
    21.
    发明申请
    Single motor connected to an optical pick up unit and an optical print head 审中-公开
    单个电机连接到光学拾取单元和光学打印头

    公开(公告)号:US20060248551A1

    公开(公告)日:2006-11-02

    申请号:US11116846

    申请日:2005-04-28

    CPC分类号: G11B7/0037

    摘要: This invention relates to an optical disk writing and printing apparatus comprising; a motor operatively connected to an optical pickup unit and an optical print head such that the motor is engagingly connected to the optical pickup unit for assisting the optical pickup unit in writing data on one side of an optical disk and engagingly connected to the optical print head for assisting the optical print head in printing markings on another side of the optical disk.

    摘要翻译: 本发明涉及一种光盘写入和打印设备,包括: 可操作地连接到光学拾取单元和光学打印头的马达,使得马达与光学拾取单元接合地连接,以辅助光学拾取单元在光盘的一侧上写入数据并且与光学打印头 用于辅助光学打印头在光盘的另一侧的打印标记。

    Error detection and correction
    22.
    发明申请
    Error detection and correction 失效
    错误检测和纠正

    公开(公告)号:US20060156175A1

    公开(公告)日:2006-07-13

    申请号:US11013573

    申请日:2004-12-15

    IPC分类号: H03M13/00

    摘要: A method for error detection and correction comprising performing a first modulation error scan of said modulation symbol, marking data that fails to comply with a predetermined criteria, demodulating said modulation symbols, computing a first error syndrome using said demodulated symbols, and correcting errors using said error syndrome computation.

    摘要翻译: 一种用于错误检测和校正的方法,包括执行所述调制符号的第一调制误差扫描,标记不符合预定标准的数据,解调所述调制符号,使用所述解调符号计算第一误差校正子,以及使用所述调制符号校正误差 误差综合征计算。

    Optical disk drive focusing apparatus
    24.
    发明申请
    Optical disk drive focusing apparatus 有权
    光盘驱动聚焦装置

    公开(公告)号:US20050058030A1

    公开(公告)日:2005-03-17

    申请号:US10661394

    申请日:2003-09-12

    摘要: A system provides a signal to an actuator within an optical pickup unit of an optical disk drive. In one implementation, SUM signal data (an output from the quad sensors typically present in the optical pickup unit) is recorded within a SUM table. An error term generator processes the SUM signal data from the SUM table to produce an error term. An actuator control signal generator generates a signal to control movement of the actuator, wherein the signal is a function of a prior actuator position, the error term and an adaptation coefficient, wherein the adaptation coefficient impacts a rate at which the error term is allowed to modify the prior actuator position.

    摘要翻译: 系统向光盘驱动器的光学拾取单元内的致动器提供信号。 在一个实现中,将SUM信号数据(通常存在于光学拾取单元中的四个传感器的输出)记录在SUM表内。 错误项发生器处理来自SUM表的SUM信号数据以产生错误项。 致动器控制信号发生器产生用于控制致动器的运动的信号,其中该信号是先前的致动器位置,误差项和适应系数的函数,其中自适应系数影响允许误差项的速率 修改先前的执行器位置。

    Focus error signal generation
    25.
    发明申请
    Focus error signal generation 审中-公开
    聚焦误差信号产生

    公开(公告)号:US20050047286A1

    公开(公告)日:2005-03-03

    申请号:US10652004

    申请日:2003-08-29

    申请人: Darwin Hanks

    发明人: Darwin Hanks

    IPC分类号: G11B7/00 G11B7/0037 G11B7/09

    摘要: A method of focus control is disclosed. In a passing action, a light source beam is passed over a reflectivity change on a storage media. In a determining action, a change time of a reflectivity step function is determined. In another determining action, a current light source spot size is determined using the change time and a storage media velocity.

    摘要翻译: 公开了一种聚焦控制方法。 在通过动作中,光源光束通过存储介质上的反射率变化。 在确定动作中,确定反射率阶跃函数的变化时间。 在另一确定动作中,使用改变时间和存储介质速度来确定当前光源光斑尺寸。