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    • 1. 发明申请
    • APPARATUS AND METHOD FOR READING INFORMATION FROM AN INFORMATION CARRIER
    • 从信息载体读取信息的装置和方法
    • WO2005050630A3
    • 2008-01-17
    • PCT/IB2004052285
    • 2004-11-03
    • KONINKL PHILIPS ELECTRONICS NVYIN BINIMMINK ALBERT H JPADIY ALEXANDERCOENE WILLEM M J M
    • YIN BINIMMINK ALBERT H JPADIY ALEXANDERCOENE WILLEM M J M
    • G11B7/00G11B7/005G11B7/09
    • G11B7/005G11B7/0903G11B19/045
    • In modem optical disc systems, inter-track spacing is chosen relatively small in order to allow high storage densities. As a result, the optical spot has a radius comparable with the track pitch, and the data written on neighboring tracks appear in the target track signal in the form of inter-track interference (cross-talk). To tackle the cross-talk problem, cross-talk canceling schemes are normally employed. These schemes use three spots, one spot on the main track and two satellite spots on adjacent tracks. The read signal (C) is improved by minimizing the cross-talk between the satellite signals (S + ,S - ) and the read signal (C). However, due to the decreasing inter-track spacing, the decorrelation concept fails since the satellite spots read too much central track information and become strongly correlated with the read signal (C), which causes "leakage" in the decorrelation. The present invention solves this problem with an additional circuit for outputting improved satellite signals (S +
    • 在调制解调器光盘系统中,为了允许高存储密度,选择相对较小的间隙间距。 结果,光点具有与轨道间距相当的半径,并且写入相邻轨道的数据以轨道间干扰(串扰)的形式出现在目标轨迹信号中。 为了解决串扰问题,通常采用串扰消除方案。 这些方案使用三个点,主轨道上有一个点,相邻轨道上有两个卫星点。 读取信号(C)通过使卫星信号(S SUP),读出信号(C)之间的串扰最小化来改善。 然而,由于轨道间距减小,因为卫星点读取太多的中心轨迹信息并且与读信号(C)强相关,因此解相关概念失败,这导致去相关中的“泄漏”。 本发明通过用于输出改进的卫星信号的附加电路来解决这个问题
    • 3. 发明申请
    • EXTRACTING INERTIAL AND GRAVITATIONAL VECTOR COMPONENTS FROM ACCELERATION MEASUREMENTS
    • 提取加速度测量的惯性和粗略矢量分量
    • WO2009031064A3
    • 2009-07-02
    • PCT/IB2008053399
    • 2008-08-25
    • KONINKL PHILIPS ELECTRONICS NVYIN BINVAN ACHT VICTOR M GLAMBERT NICOLAAS
    • YIN BINVAN ACHT VICTOR M GLAMBERT NICOLAAS
    • A61B6/00A61B5/11G01C21/16G01P15/18
    • A61B5/1126A61B5/1118A61B5/1122A61B2562/0219G01C21/16
    • This invention discloses method of extracting inertial Vi and gravitational Vg acceleration vector components from acceleration vector Va = Vi + Vg measured by an accelerometer when the absolute orientation of the accelerometer coordinate system relative to the earth coordinate system varies over time. A sequence of acceleration readout vectors Va [k] from the accelerometer is received. For a given sampling moment k a temporal estimate (I)g [k] is determined for the gravitational acceleration vector Vg, the temporal estimate being determined in the accelerometer coordinate system using the acceleration readout vectors from the accelerometer. A first estimate for the inertial acceleration vector (II)i [k] is set to zero. A measure of the difference between the readout vector Va [k] and the sum of (I)g [k] + (II)i [k] is determined and a measure of the difference in length between the estimate (II)g [k] and the actual gravitational acceleration vector Vg is determined. If the determined measures do not equal substantially to zero the estimates (II)g [k] and (II)i [k] are replaced by a next improved estimate and above mentioned steps are repeated.
    • 本发明公开了当加速度计坐标系相对于地球坐标系的绝对取向随时间变化时,由加速度计测量的加速度矢量Va = Vi + Vg提取惯性Vi和重力Vg加速度矢量分量的方法。 接收来自加速度计的一系列加速度读出矢量Va [k]。 对于给定的采样时刻k,对于重力加速度矢量V g确定时间估计(I)g [k],使用来自加速度计的加速度读数矢量在加速度计坐标系中确定时间估计。 惯性加速度矢量(II)i [k]的第一估计被设置为零。 确定读出矢量Va [k]与(I)g [k] +(II)i [k]的和之间的差的度量,并且测量估计(II)g [ k]并且确定实际的重力加速度矢量Vg。 如果确定的措施不等于零,则估计(II)g [k]和(II)i [k]被替换为下一个改进的估计,并且重复上述步骤。
    • 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。
    • 5. 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”。
    • 6. 发明申请
    • RADIAL TILT ESTIMATION VIA DIAGONAL PUSH-PULL
    • 通过对角推拉的径向倾斜估计
    • WO2007069117A3
    • 2007-10-11
    • PCT/IB2006054566
    • 2006-12-04
    • KONINKL PHILIPS ELECTRONICS NVYIN BIN
    • YIN BIN
    • G11B7/095
    • G11B7/0956
    • A device is arranged for scanning an optical record carrier (11), which has a data layer with parallel data tracks. The device has an optical head (22) comprising a detector for receiving radiation reflected from a data track, the detector having sub-detectors arranged in a quadrant. The device has a tilt unit (32) for generating a tilt signal representing a tilt angle (204) between an optical axis (202) of the optical head and a perpendicular (203) of the data layer. The tilt unit (32) generates a diagonal push-pull signal based on a difference of a first signal of a first diagonally positioned pair of sub detectors and second signal of a second diagonally positioned pair of sub detectors, and processes the diagonal push-pull signal for generating the tilt signal.
    • 一种设备被布置用于扫描具有平行数据磁道的数据层的光学记录载体(11)。 该装置具有光学头(22),其包括用于接收从数据轨道反射的辐射的检测器,该检测器具有布置在象限中的子检测器。 该装置具有用于产生表示光学头的光轴(202)与数据层的垂直(203)之间的倾斜角(204)的倾斜信号的倾斜单元(32)。 倾斜单元(32)基于第一对角位置的一对子检测器的第一信号和第二对角位置的子检测器对的第二信号的差产生对角推挽信号,并且处理对角推挽 用于产生倾斜信号的信号。
    • 7. 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。
    • 10. 发明申请
    • OPTICAL DISK DRIVE AND TRACKING ERROR DETECTION METHOD FOR AN OPTICAL DISK DRIVE
    • 一种光盘驱动器的光盘驱动和跟踪误差检测方法
    • WO2007036826A2
    • 2007-04-05
    • PCT/IB2006053248
    • 2006-09-13
    • KONINKL PHILIPS ELECTRONICS NVYIN BIN
    • YIN BIN
    • G11B7/24079
    • G11B7/24079G11B7/08505G11B7/08529G11B7/0903G11B7/0943
    • The present invention relates to a tracking error detection method for an optical storage system wherein an optical disk comprises a plurality of adjacent track portions with a radial track pattern in which a number n > 2 of adjacent track portions repeatedly exhibit non-uniform radial track distances ( TP 1 ? TP 2 ? TP n ), whereby the sum of said radial track distances ( TP S = TP 1 + ... + TP n ) is higher than the reciprocal optical cutoff ? /(2NA) of the optical disk drive. The method comprises projecting a plurality of (n) satellite light spots (S 1 ,..., S n ; S L , S M ) and one main spot (S R ) onto said optical disk, each satellite spot being displaced in radial direction off the main spot by another one of half the radial track distances (TP 1 /2 ?TP 1 /2 ? ... ? TP n /2), respectively, and generating push-pull signals (PP 1 ,...,PP n ; PP L , PPM) for each satellite spot. The invention further relates to an optical disk drive implementing said method.
    • 本发明涉及一种用于光存储系统的跟踪误差检测方法,其中光盘包括具有径向轨道图案的多个相邻轨道部分,其中相邻轨道部分的数量n> 2重复地表现出不均匀的径向轨道距离 (TP SUB <2> TP n ),由此所述径向轨迹距离的总和(TP S = TP 1 + ... + TP n )高于倒数光学截止? /(2NA)。 该方法包括投射多个(n个)卫星光点(S 1,...,S SUB> n ; S L ,S < 并将一个主光点(S R )插入所述光盘上,每个卫星光点在径向偏离主光点偏移径向光道距离的一半 (2)分别产生推挽信号((1),(2),(2),(3), PP 1 ,...,PP n ; PP L PPM)。 本发明还涉及实施所述方法的光盘驱动器。