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    • 7. 发明申请
    • A METHOD AND SYSTEM FOR RECORDING DATA BY A PLURALITY OF LASER BEAMS ON AN OPTICAL DISC
    • 用于通过光盘上的激光束记录数据的方法和系统
    • WO2007057836A1
    • 2007-05-24
    • PCT/IB2006/054230
    • 2006-11-14
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.CHEN, DayuGOOSSENS, Henk
    • CHEN, DayuGOOSSENS, Henk
    • G11B7/14
    • G11B7/14G11B7/08505
    • The invention relates to a method and system for recording data by a plurality of laser beams (A, B) on an optical disc, said optical disc comprising segments which (1-51) are each identified by a synchronization pattern, said plurality of laser beams comprising at least a first laser beam (A) which has a first position on said optical disc for recording/reading data on a first segment and a second laser beam (B) which has a second position on said optical disc for recording data on a second segment, said method comprising the steps of : - calculating (410) said second position from said first position and the relative distance between said first laser beam and said second laser beam, - detecting (420) a synchronization pattern by said second laser beam, and - starting (430) to record data with said second laser beam on the basis of said second position and said detected synchronization pattern.
    • 本发明涉及一种用于通过多个激光束(A,B)在光盘上记录数据的方法和系统,所述光盘包括(1-51)每个由同步图案识别的段,所述多个激光 至少包括第一激光束(A)的光束,所述第一激光束(A)在所述光盘上具有用于在第一片段上记录/读取数据的第一位置和在所述光盘上具有第二位置的第二激光束(B),用于将数据记录在 第二段,所述方法包括以下步骤: - 从所述第一位置计算(410)所述第二位置和所述第一激光束与所述第二激光束之间的相对距离, - 通过所述第二激光器检测(420)同步模式 并且 - 基于所述第二位置和所述检测到的同步模式,起始(430)记录与所述第二激光束的数据。
    • 9. 发明申请
    • A SYSTEM AND METHOD FOR DETERMINING THE POSITION OF A PLURALITY OF LASER SPOTS ON AN OPTICAL DISC
    • 用于确定光盘上多个激光射击位置的系统和方法
    • WO2008035257A1
    • 2008-03-27
    • PCT/IB2007/053705
    • 2007-09-14
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.CHEN, DayuBAUMGARTNER, Nicolas
    • CHEN, DayuBAUMGARTNER, Nicolas
    • G11B7/09G11B7/13
    • G11B7/0903G11B7/0943G11B7/131
    • A system for determining an angular measure (AM) of a plurality of spots intended to be applied to an optical disc, with respect to said optical disc, said system comprising: -a detecting unit for detecting light signals derived from said plurality of spots, said detecting unit comprising a set of detectors aligned according to a same direction D, each of said detectors being intended to receive one light signal derived from one spot of said plurality of spots, each of said detectors having a first light-sensitive area and a second light-sensitive area positioned on both sides of said direction D; a first output signal (OS1A; OS1B) being derived from said first light-sensitive area and a second output signal (OS2A; OS2B) being derived from said second light- sensitive area and -a generating unit (320) comprising: a) a first module (320) for generating, for each of said detectors, a set of first offset signals by calculating, the difference between said first output signal (OS1A;OS1B) and said second output signal (OS2A;OS2B); b) a second module for generating a set of second offset signals by calculating the difference of each pair of first offset signals; and c) a third module for determining said angular measure (AM) according to said set of second offset signals.
    • 一种用于确定旨在施加到光盘的多个点的角度测量(AM)的系统,对于所述光盘,所述系统包括: - 检测单元,用于检测从所述多个点导出的光信号, 所述检测单元包括根据相同方向D对准的一组检测器,每个所述检测器旨在接收从所述多个点中的一个点导出的一个光信号,每个所述检测器具有第一光敏区域和 位于所述方向D的两侧的第二感光区域; 从所述第一感光区域导出的第一输出信号(OS1A; OS1B)和从所述第二感光区域导出的第二输出信号(OS2A; OS2B)和-a生成单元(320),包括:a) 第一模块(320),用于通过计算所述第一输出信号(OS1A; OS1B)和所述第二输出信号(OS2A; OS2B)之间的差,为每个所述检测器产生一组第一偏移信号; b)第二模块,用于通过计算每对第一偏移信号的差异来产生一组第二偏移信号; 以及c)用于根据所述一组第二偏移信号确定所述角度测量(AM)的第三模块。