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    • 1. 发明申请
    • ARRANGEMENT FOR OBTAINING A TRACK WOBBLE SIGNAL
    • 用于获取轨迹信号的布置
    • WO2005101384A1
    • 2005-10-27
    • PCT/EP2005/003610
    • 2005-04-06
    • THOMSON LICENSING S.A.BÜCHLER, ChristianBALLWEG, Christof
    • BÜCHLER, ChristianBALLWEG, Christof
    • G11B7/005
    • G11B7/0053G11B7/0943
    • The present invention relates to an arrangement by means of which a signal-to-noise ratio which is as optimum as possible is obtained during the recovery of a signal which itself is used for recovery of the address information contained in a wobble track on an optical storage medium. An arrangement according to the invention for obtaining a track wobble signal comprises: - a detector having at least two detector areas for detection of a light beam which is reflected from an optical storage medium, - a first variable delay element which is switchably associated with a first or a second detector area, - a subtraction means, whose inputs are connected to the output of the first variable delay element and to the output of the undelayed detector area, and whose output produces a track wobble signal (TW), and - a detection means, whose output signal is used for automatic setting of the first variable delay element to an optimum value and produces the association between the first variable delay element and the first or second detector area, wherein the first variable delay element can be adjusted while reading from and/or writing to the optical storage medium.
    • 本发明涉及一种在信号恢复期间获得尽可能最佳的信噪比的装置,该信号本身用于恢复包含在光学上的摆动轨道中的地址信息 存储介质。 根据本发明的用于获得轨道摆动信号的装置包括: - 具有至少两个用于检测从光存储介质反射的光束的检测器区域的检测器, - 第一可变延迟元件,其可切换地与一个 第一或第二检测器区域, - 减法装置,其输入连接到第一可变延迟元件的输出和未延迟检测器区域的输出,并且其输出产生轨道摆动信号(TW),以及 - 检测装置,其输出信号用于将第一可变延迟元件自动设置为最佳值,并产生第一可变延迟元件与第一或第二检测器区域之间的关联,其中第一可变延迟元件可以在读取时进行调整 从和/或写入光学存储介质。
    • 8. 发明申请
    • METHOD AND APPARATUS FOR DATA DETECTION
    • 用于数据检测的方法和装置
    • WO2009027282A1
    • 2009-03-05
    • PCT/EP2008/060880
    • 2008-08-20
    • THOMSON LICENSINGBALLWEG, ChristofKIMMELMANN, Stefan
    • BALLWEG, ChristofKIMMELMANN, Stefan
    • G11B20/00
    • G11B20/1403G11B20/10037G11B2220/2504
    • In data detection from a storage medium (D) carrying data in a storage layer with a corresponding drive or apparatus (A), a motor (1) moves the medium (D) and a motor control unit (2) controls the position of the medium (D) using a position signal (SP). A reading unit (3) reads the data from the medium (D) and generates a readout signal (D2). By using a sampling control signal, a data detection unit (4) derives discrete data from the readout signal (D2). According to the invention the data detection unit (4) of the apparatus (A) is coupled to the motor control unit (2). In particular, the sampling control signal is derived from the position signal (SP), such that the value of the sampling control signal univocally depends on the position of the motor (1) moving the medium (D).
    • 在从具有相应的驱动器或设备(A)的存储层中携带数据的存储介质(D)的数据检测中,电动机(1)移动介质(D),电动机控制单元(2)控制 介质(D)使用位置信号(SP)。 读取单元(3)从介质(D)读取数据并产生读出信号(D2)。 通过使用采样控制信号,数据检测单元(4)从读出信号(D2)导出离散数据。 根据本发明,装置(A)的数据检测单元(4)耦合到马达控制单元(2)。 特别地,采样控制信号从位置信号(SP)导出,使得采样控制信号的值单一地取决于移动介质(D)的电动机(1)的位置。