会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明申请
    • METHOD FOR GENERATING A LENS POSITION SIGNAL AND CORRESPONDING APPARATUS FOR READING FROM AND/OR WRITING TO AN OPTICAL RECORDING MEDIUM
    • 用于生成透镜位置信号的方法和用于从光学记录介质读取和/或写入光学记录介质的相应装置
    • WO0249023A3
    • 2003-01-09
    • PCT/EP0114293
    • 2001-12-05
    • THOMSON LICENSING SABUECHLER CHRISTIAN
    • BUECHLER CHRISTIAN
    • G11B7/085G11B7/09
    • G11B7/0943G11B7/0903G11B7/094
    • In order to generate a lens position signal (LCE), which describes the position of the optical axis of an objective lens (6) of an apparatus for reading from and/or writing to an optical recording medium (7) with regard to the optical axis of the remaining components (2, 3, 4, 5, 8, 9) contained in an optical scanner (21), the application of the DPP method is proposed in accordance with a first exemplary embodiment, wherein a primary-beam error signal (CPP) and a secondary-beam error signal (OPP) are obtained with the aid of the DPP method, wherein the desired lens position signal (LCE) is generated by addition of the primary-beam error signal (CPP) and the secondary-beam error signal (OPP). In accordance with a second exemplary embodiment, it is not necessary to generate a primary beam, rather it suffices to detect the secondary beams reflected from the optical recording medium (7) in order to obtain the lens position signal (LCE) by addition of the secondary-beam error signals (OPP1, OPP2) generated in a manner dependent thereon.
    • 为了产生透镜位置信号(LCE),该透镜位置信号描述了关于光学记录介质(7)的用于从光学记录介质(7)读取和/或写入的设备的物镜(6)的光轴的位置 包含在光学扫描器(21)中的其余部件(2,3,4,5,8,9)的轴线,根据第一示例性实施例提出了DPP方法的应用,其中一次束误差信号 (CPP)和辅助光束误差信号(OPP),其中通过添加一次光束误差信号(CPP)和辅助光束误差信号(CPP)来产生期望的透镜位置信号(LCE) 光束误差信号(OPP)。 根据第二示例性实施例,不需要产生主光束,而是可以检测从光记录介质(7)反射的次光束,以便通过添加光学记录介质来获得透镜位置信号(LCE) 以取决于其的方式产生的二次束误差信号(OPP1,OPP2)。
    • 5. 发明申请
    • METHOD FOR REDUCING THE NOISE IN A WOBBLE SIGNAL
    • 减少无线信号噪声的方法
    • WO03017260A3
    • 2003-09-04
    • PCT/EP0208706
    • 2002-08-05
    • THOMSON LICENSING SABUECHLER CHRISTIANRESCHKE UWE
    • BUECHLER CHRISTIANRESCHKE UWE
    • G11B20/10G11B7/00G11B7/005G11B20/24G11B27/24
    • G11B20/10481G11B7/0053G11B20/10009G11B20/24G11B27/24G11B2220/218G11B2220/2545G11B2220/2562
    • The present invention relates to a method and a circuit for recovering information (INF) contained in a wobble track (36) of an optical storage medium (34).One aim of the invention is to describe a method within an appliance for reading from and/or writing to optical storage media (34), which can correct disturbing data signal components (AS') in the wobble signal (TW) even when the swept frequency and the lowest signal frequency are close to one another.According to the invention, this object is achieved in that the signals (A+D,B+C) from two detector halves (1A+1D,1B+1C) of a photodetector (1) which is used for reading the data contained in a track (36) on an optical storage medium (34) are provided with weighting factors (K1, K2) which are adjusted dynamically during operation of the appliance for reading from and/or writing to optical storage media. In order to adjust the weighting factors (K1, K2), the obtained swept- frequency signal (TW) is linked to a data signal (HF).
    • 本发明涉及一种用于恢复包含在光学存储介质(34)的摆动轨道(36)中的信息(INF)的方法和电路。本发明的一个目的是描述一种用于读取和/ /或写入光存储介质(34),即使当扫频和最低信号频率彼此接近时,其也可以纠正摆动信号(TW)中的干扰数据信号分量(AS')。根据本发明, 该目的是实现用于读取包含在轨道(36)中的数据的光电检测器(1)的两个检测器半部(1A + 1D,1B + 1C)的信号(A + D,B + C) 在光学存储介质(34)上设置有加权因子(K1,K2),其在用于从光学存储介质读取和/或写入光学存储介质的设备的操作期间动态地调整。 为了调整加权系数(K1,K2),获得的扫频信号(TW)与数据信号(HF)相连。