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    • 2. 发明申请
    • AN OPTICAL SYSTEM WITH FILTERED PUSH PULL RADIAL TRACKING
    • 具有滤波推拉径向跟踪的​​光学系统
    • WO2006131865A3
    • 2008-04-10
    • PCT/IB2006051769
    • 2006-06-02
    • KONINKL PHILIPS ELECTRONICS NVVLUTTERS RUUDYIN BIN
    • VLUTTERS RUUDYIN BIN
    • G11B7/09G11B7/08
    • G11B7/0903
    • The present invention relates to optical system capable of reproducing information from an optical carrier by a main beam (C) for reading information as readable effects on the carrier, and a first (A) and a second (B) auxiliary beam. The optical system is adapted to direct the main beam (C) and the first (A) and second (B) auxiliary beam onto the carrier so that the main beam is positioned on a first track, and the first and second auxiliary beam are oppositely positioned on a second and a third track. The optical system can adjust a push pull (PP) radial error signal from the main beam by a function; f=f(A, B, C), where the function f is dependent upon adjacently positioned readable effects in the first, second and third track i.e. the local optical environment of the main beam. Therefore a filtering or "cleaning" of the push pull signal is performed depending on the local optical environment of the main beam.
    • 本发明涉及能够通过主波束(C)从光载波再现信息的光学系统,用于读取作为对载体的可读效果的信息,以及第一(A)和第二(B)辅助波束。 光学系统适于将主光束(C)和第一(A)和第二(B)辅助光束引导到载体上,使得主光束位于第一光道上,并且第一和第二辅助光束相反 位于第二和第三轨道上。 光学系统可以通过功能调整来自主光束的推挽(PP)径向误差信号; f = f(A,B,C),其中函数f取决于第一,第二和第三轨道中相邻定位的可读效果,即主波束的局部光学环境。 因此,根据主光束的局部光学环境来执行推挽信号的滤波或“清洁”。
    • 3. 发明申请
    • TRACKING BY CROSS CORRELATING CENTRAL APERTURES OF MULTIPLE BEAMS
    • 通过交叉相关多个中心路径跟踪
    • WO2006067654A3
    • 2006-09-14
    • PCT/IB2005054106
    • 2005-12-07
    • KONINKL PHILIPS ELECTRONICS NVPHILIPS CORPVLUTTERS RUUDYIN BIN
    • VLUTTERS RUUDYIN BIN
    • G11B7/09
    • G11B7/0943G11B7/0903
    • The present invention provides a method and apparatus for robust tracking at narrow track-pitches on optical discs, enabling higher densities on Blu-ray Discs (5) as well as near-field discs. Increasing radial density results in loss of radial diffraction within the numerical aperture of the lens. Due to this loss in diffraction, current tracking methods, such as Push-Pull and Differential Phase Detection (DPD), will stop working. The invention provides a method and apparatus that relies on cross-correlating the central aperture (CA) signals of 3 optical spots (22, 24, 26) that are positioned such that there are a central spot (24) and spots (22, 26) positioned to the left (22) and right (26) of the central spot (4) . By using CA signals, the tangential diffraction is used, which is hardly affected by a track-pitch reduction.
    • 本发明提供一种用于在光盘上的窄轨道间距进行鲁棒跟踪的方法和装置,能够在蓝光光盘(5)以及近场光盘上实现更高的密度。 增加径向密度导致透镜数值孔径内的径向衍射损失。 由于这种衍射损失,诸如推挽和差分相位检测(DPD)之类的电流跟踪方法将停止工作。 本发明提供了一种依赖于将3个光点(22,24,26)的中心孔径(CA)信号交叉相关的方法和装置,其被定位成使得存在中心斑点(24)和斑点(22,26) )位于中心点(4)的左侧(22)和右侧(26)。 通过使用CA信号,使用切向衍射,其几乎不受轨道间距减小的影响。
    • 4. 发明申请
    • METHOD OF LENS POSITIONING FOR TILT COMPENSATION, METHOD AND APPARATUS FOR READING AND RECORDING DATA ONTO AN OPTICAL DISC
    • 用于倾斜补偿的透镜定位方法,用于在光盘上读取和记录数据的方法和设备
    • WO2007069128A2
    • 2007-06-21
    • PCT/IB2006054601
    • 2006-12-05
    • KONINKL PHILIPS ELECTRONICS NVVLUTTERS RUUDYIN BIN
    • VLUTTERS RUUDYIN BIN
    • G11B7/095
    • G11B7/0956
    • A method of controlling the positioning of an objective lens of a lens system for controlling an optical beam used in reading and/or recording information from/onto a track of an optical disc, the method comprising steps of detecting modulated optical signals corresponding to the intensity of a reflected optical beam, the reflected optical beam being modulated by the periodic structures of the track of the optical disc, deriving a radial tilt error signal from the modulated optical signals indicative of a radial tilt, wherein the radial tilt refers to the tilt of the objective lens with respect to the optical disc in a radial direction; using the radial tilt error signal for adjusting the position of the objective lens with respect to the optical disc in a radial direction, the method characterized by using the radial tilt error signal for adjusting the position of the objective lens by means of a feedback loop. The radial tilt error signal may be proportional to a cross correlation signal between a Radial Push Pull (RPP) signal and a Central Aperture (CA) signal or a cross correlation signal between a Radial Push Pull (RPP) and a Diagonal Push Pull (DPP) signal.
    • 一种控制透镜系统的物镜的定位的方法,用于控制用于从/向光盘的轨道读取和/或记录信息的光束,该方法包括以下步骤:检测对应于光强度的调制光信号 反射光束被光盘的轨道的周期性结构调制,从表示径向倾斜的调制光信号导出径向倾斜误差信号,其中径向倾斜指的是倾斜的 物镜相对于光盘在径向方向上; 使用径向倾斜误差信号来调整物镜相对于光盘在径向方向上的位置,所述方法的特征在于使用径向倾斜误差信号借助于反馈回路来调整物镜的位置。 径向倾斜误差信号可以与径向推挽(RPP)信号和中心孔径(CA)信号或径向推挽(RPP)和对角推挽(DPP)之间的互相关信号之间的互相关信号成比例 )信号。
    • 7. 发明申请
    • DUAL-SPEED OPTICAL RECORD CARRIER RECORDING APPARATUS
    • 双速光学记录载体记录装置
    • WO2004081919A2
    • 2004-09-23
    • PCT/IB2004050168
    • 2004-03-01
    • KONINKL PHILIPS ELECTRONICS NVVLUTTERS RUUDVAN ROMPAEY BARTTIEKE BENNO
    • VLUTTERS RUUDVAN ROMPAEY BARTTIEKE BENNO
    • G11B7/00G11B19/26G11B
    • G11B19/26
    • The present invention relates to an optical record carrier recording apparatus and method for recording data on a phase-change optical record carrier (55) storing a state information about the location of crystalline and non-crystalline areas of the record carrier (55). In order to provide the possibility to write with different writing speeds on the record carrier, writing means (54) for recording data on the record carrier (55) can be switched between different writing modes. The first writing mode is used if the recording apparatus (5) is in a high power mode, e.g. supplied with power from a mains power supply and if a crystalline (unwritten) area is available on the record carrier (55). If no crystalline area is available or if the recording apparatus (5) is in a low power mode, the second writing mode having a lower writing speed is preferably used.
    • 本发明涉及一种用于在相变光学记录载体(55)上记录数据的光学记录载体记录设备和方法,所述相变光学记录载体存储关于记录载体(55)的晶体和非晶体区域的位置的状态信息。 为了提供在记录载体上以不同写入速度写入的可能性,用于在记录载体(55)上记录数据的写入装置(54)可以在不同的写入模式之间切换。 如果记录设备(5)处于高功率模式(例如,高功率模式),则使用第一写入模式。 如果在记录载体(55)上有结晶(未写)区域,则由主电源供电。 如果没有结晶区域可用或者如果记录设备(5)处于低功率模式,则优选使用具有较低写入速度的第二写入模式。
    • 8. 发明申请
    • TRANSITION SHIFT TIMING FOR OPTICAL SIGNAL
    • 用于光信号的瞬态移位时序
    • WO2006067691A2
    • 2006-06-29
    • PCT/IB2005054247
    • 2005-12-14
    • KONINKL PHILIPS ELECTRONICS NVVLUTTERS RUUD
    • VLUTTERS RUUD
    • G11B20/1403G11B27/36G11B2020/1476G11B2220/2541
    • A method of determining the transition shift timing in a measured optical signal from an optical recording medium as well as applications of the method in connection with optimizing a write strategy and analyzing the write quality for an optical recording medium are disclosed. The method comprising the step of: providing values of a measured optical signal, providing modulation bits corresponding to the measured optical signal, calculating a model signal by means of an optical channel model, and determining an output timing of the leading and trailing edges from a mathematical model. The method being a recursive method which is continued until a predetermined criterion is fulfilled. The final output is the average transition shifts of the channel bits of the measured CA signal as they are on the optical recording medium. The applications of the method include but are not limited to: a module for determining the average transition shifts, an optical recording apparatus with means for adjusting the write strategy according to the average transition shifts, and an IC for controlling an optical recording apparatus.
    • 公开了一种确定来自光学记录介质的测量光信号中的转移移位定时的方法以及该方法在优化写入策略和分析光学记录介质的写入质量方面的应用。 该方法包括以下步骤:提供所测量的光信号的值,提供与所测量的光信号相对应的调制位,借助于光信道模型计算模型信号,以及确定前边缘和后沿的输出定时 数学模型。 该方法是递归方法,直到满足预定标准为止。 最终输出是测量的CA信号的通道位在光记录介质上的平均过渡位移。 该方法的应用包括但不限于:用于确定平均过渡位移的模块,具有根据平均过渡位移调整写入策略的装置的光学记录装置,以及用于控制光学记录装置的IC。