Method and Apparatus for Determining the Quality of Optical Disk Read Signal
    4.
    发明申请
    Method and Apparatus for Determining the Quality of Optical Disk Read Signal 审中-公开
    用于确定光盘读信号质量的方法和装置

    公开(公告)号:US20070242582A1

    公开(公告)日:2007-10-18

    申请号:US11570432

    申请日:2005-05-27

    IPC分类号: G11B20/18

    摘要: The invention provides a method and apparatus 1, for determining the quality of the optical disk read signal. Said method comprises: comparing said optical disk read signal with a preset reference signal to acquire the signal values correlated with said preset reference signal in said optical disk read signal, with said correlated signal values satisfying a preset condition; sampling said optical disk read signal to acquire a, plurality of sampled signal values; acquiring, with respect to each of said signal values, two sampled signal values that are adjacent to each of said signal values according to said signal values and said sampled signal values; and finally determining the quality of said optical disk read signal on the basis of the preset relationship between the average and the maximum values of the differences of said two adjacent sampled signal values that are corresponding to each of the signal values.

    摘要翻译: 本发明提供一种用于确定光盘读取信号的质量的方法和装置1。 所述方法包括:将所述光盘读取信号与预置的参考信号进行比较,以获得与所述光盘读取信号中的所述预置参考信号相关的信号值,所述相关信号值满足预设条件; 对所述光盘读取信号进行采样以获取多个采样信号值; 针对每个所述信号值,根据所述信号值和所述采样信号值获取与每个所述信号值相邻的两个采样信号值; 并且最终基于与每个信号值相对应的所述两个相邻采样信号值的差的平均值和最大值之间的预设关系确定所述光盘读信号的质量。

    Optical device comprising a polymer actuator
    5.
    发明申请
    Optical device comprising a polymer actuator 失效
    包括聚合物致动器的光学装置

    公开(公告)号:US20060072181A1

    公开(公告)日:2006-04-06

    申请号:US10540685

    申请日:2003-12-05

    申请人: Hendrik Goossens

    发明人: Hendrik Goossens

    IPC分类号: G02B26/00

    摘要: The invention relates to an optical device comprising; a) a polymer film (101) comprising a first surface (107) and a second surface (108), b) a first electrode (102) mapped on said first surface (107), c) a second electrode (103) mapped on said second surface (108), d) a deformable optical element (104) mapped on said first electrode (102) or on said first surface (107).

    摘要翻译: 本发明涉及一种光学装置,包括: a)包括第一表面(107)和第二表面(108)的聚合物膜(101),b)映射在所述第一表面(107)上的第一电极(102),c)映射到 所述第二表面(108),d)映射在所述第一电极(102)上或所述第一表面(107)上的可变形光学元件(104)。

    Optical disc servo that is robust for defects
    6.
    发明申请
    Optical disc servo that is robust for defects 审中-公开
    适用于缺陷的光盘伺服系统

    公开(公告)号:US20070109936A1

    公开(公告)日:2007-05-17

    申请号:US10581640

    申请日:2004-11-30

    IPC分类号: G11B7/00 G11B20/18

    CPC分类号: G11B7/0948 G11B7/0941

    摘要: A method is described for discriminating different types of disc defects in an optical disc drive apparatus (1) of a type comprising: scanning means (30) for scanning a record track of an optical disc (2) and for generating a read signal (SR), the scanning means (30) comprising at least one displaceable read/write element (34); actuator means (50) for controlling the positioning of said read/write element; a control circuit (90) for generating at least one actuator control signal (SCR, SCF, SCT) on the basis of at least one signal component (REN, FEN) of said read signal, the control circuit having a plurality of predetermined controller settings; the method comprising the steps of: deriving from said read signal at least one signal component (MIRN ; performing a frequency analysis of said signal component; selectively setting one of said plurality of predetermined controller settings on the basis of the results of said frequency analysis.

    摘要翻译: 一种描述用于识别光盘驱动装置(1)中的不同类型的光盘缺陷的方法,包括:扫描装置(30),用于扫描光盘(2)的记录轨道并产生读取信号(S 扫描装置(30)包括至少一个位移读/写元件(34); 用于控制所述读/写元件的定位的致动器装置(50) 一个控制电路(90),用于基于at(1)产生至少一个致动器控制信号(S SUB,C,S,C,C,C) 所述读取信号的至少一个信号分量(REN,FEN),所述控制电路具有多个预定的控制器设置; 所述方法包括以下步骤:从所述读取信号中得出至少一个信号分量(MIRN;执行所述信号分量的频率分析;基于所述频率分析的结果选择性地设置所述多个预定控制器设置中的一个。

    Optical disk system with improved playability
    7.
    发明申请
    Optical disk system with improved playability 审中-公开
    具有改善播放性的光盘系统

    公开(公告)号:US20050174275A1

    公开(公告)日:2005-08-11

    申请号:US10514596

    申请日:2003-05-16

    CPC分类号: G11B7/0948

    摘要: An optical disk drive (50) comprises a radial servo system (70) for driving the position of an optical head (52) for scanning an optical disk (10) comprising at least one recording track (11; 12, 13), a focus servo system (80) for controlling the focussing of an optical beam, and a data retrieval system (90) for regenerating the digital data recorded on disk. Operative parameters of the radial servo system (70) and/or focus servo system (80) and/or data retrieval system (90) are frozen or are set to predetermined values as soon as the optical head (52) reaches a predetermined location (17) along a current track (12; 13) which is determined on the basis of a defect entry location (17) along a previous track (11; 12).

    摘要翻译: 光盘驱动器(50)包括用于驱动用于扫描包括至少一个记录轨道(11; 12,13)的光盘(10)的光学头(52)的位置的径向伺服系统(70) 用于控制光束聚焦的伺服系统(80),以及用于再生记录在盘上的数字数据的数据检索系统(90)。 一旦光学头(52)到达预定位置,则径向伺服系统(70)和/或聚焦伺服系统(80)和/或数据检索系统(90)的操作参数被冻结或被设置为预定值 沿着沿着先前轨道(11; 12)的缺陷入口位置(17)确定的当前轨道(12; 13)沿着当前轨道(12; 13)。

    Method for Improving Robustness of Optical Disk Readout
    8.
    发明申请
    Method for Improving Robustness of Optical Disk Readout 审中-公开
    提高光盘读出稳健性的方法

    公开(公告)号:US20070223346A1

    公开(公告)日:2007-09-27

    申请号:US11570624

    申请日:2005-06-21

    IPC分类号: G11B7/09

    摘要: The present invention relates to a method for improving the robustness of the readout from an optical disk in an optical disk drive, such as an optical disk of the following format: compact disk (CD), digital versatile/video disk (DVD) and Blu Ray disk (BD). The invention provides a way of obtaining an optimized radial tracking error signal using an open loop, i.e. with no feedback, in order to improve a subsequent closed loop control mechanism, preferably involving the radial tracking error signal. During the optimization of the open loop radial tracking error signal one ore more drive parameters of the optical disk drive is varied. It is a particular advantage of the invention that an improved optical read-out may be obtained if the optical disk has one or more parameters outside the specifications and/or standards associated with the optical disk. The present invention also relates to an apparatus for using the method, i.e. an optical disk drive.

    摘要翻译: 本发明涉及一种用于改善光盘驱动器中光盘读出的鲁棒性的方法,例如以下格式的光盘:光盘(CD),数字通用/视频盘(DVD)和蓝光 射线盘(BD)。 本发明提供了一种使用开环即无反馈来获得优化的径向跟踪误差信号的方法,以便改进随后的闭环控制机制,优选涉及径向跟踪误差信号。 在优化开环径向跟踪误差信号期间,光盘驱动器的一个以上的驱动参数是变化的。 本发明的一个特别的优点是,如果光盘在与光盘相关联的规范和/或标准之外具有一个或多个参数,则可以获得改进的光学读出。 本发明还涉及一种使用该方法的装置,即光盘驱动器。

    Controller device with switchable characteristic
    9.
    发明申请
    Controller device with switchable characteristic 失效
    控制器具有可切换特性

    公开(公告)号:US20050254401A1

    公开(公告)日:2005-11-17

    申请号:US10517539

    申请日:2003-05-27

    申请人: Hendrik Goossens

    发明人: Hendrik Goossens

    IPC分类号: G11B7/09 G11B5/09

    CPC分类号: G11B7/0946 G11B7/0941

    摘要: A controller (30) is capable of operating in two possible operative modes, each mode having a corresponding characteristic (11; 12). Said characteristics have an overlap in a range of error signal values [TLL-TN]. The controller is capable of switching from one mode to another, based on the value of the time-derivative (( ) of the input error signal (e), so that, for a certain input error signal within said range [TLL-TN], the controller can be in any of its modes.

    摘要翻译: 控制器(30)能够以两种可能的操作模式操作,每个模式具有对应的特征(11; 12)。 所述特性在误差信号值[TLL-TN]的范围内具有重叠。 控制器能够基于输入误差信号(e)的时间导数(())的值从一种模式切换到另一种模式,使得对于在所述范围[TLL-TN]内的某个输入误差信号, ,控制器可以处于任何模式。

    Detecting anomalies in a scanning signal
    10.
    发明申请
    Detecting anomalies in a scanning signal 失效
    检测扫描信号中的异常

    公开(公告)号:US20050232096A1

    公开(公告)日:2005-10-20

    申请号:US10524569

    申请日:2003-07-11

    摘要: An apparatus for scanning a track on a record carrier has a head (22) and front end circuitry (31) for scanning the track and generating scanning signals. A detection unit (32) detects anomalies in the scanning signal, for example for adjusting a tracking servo. The detection unit (32) calculates a mean value of the scanning signal and compares the mean value to a threshold for providing an anomaly detection signal (33). Further a classification unit (34) provides an indication of the type of defect for determining a suitable responsive or corrective action.

    摘要翻译: 用于扫描记录载体上的轨道的装置具有用于扫描轨道并产生扫描信号的头部(22)和前端电路(31)。 检测单元(32)检测扫描信号中的异常,例如用于调整跟踪伺服。 检测单元(32)计算扫描信号的平均值,并将平均值与用于提供异常检测信号的阈值进行比较(33)。 此外,分类单元(34)提供用于确定适当的响应或纠正动作的缺陷类型的指示。