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    • 1. 发明申请
    • Optical Disk Drive and Method for Determining Disk Type
    • 光盘驱动器和确定磁盘类型的方法
    • US20100157763A1
    • 2010-06-24
    • US12566964
    • 2009-09-25
    • Petrus Antonius VerbeekJean Philippe van DammeMohamad-Hussein El-HusseiniStefan Geusens
    • Petrus Antonius VerbeekJean Philippe van DammeMohamad-Hussein El-HusseiniStefan Geusens
    • G11B7/00
    • G11B19/12G11B7/1275
    • An optical disk drive for determining a disk type associated with a substrate thickness of an optical disk comprising a substrate is provided to comprise a source to generate a beam, an optical arrangement arranged to direct the beam to the optical disk for forming an incident beam, a sensor arranged to sense a reflected beam and to produce a sensor output signal, a focus system comprising an objective lens system and a focus controller, wherein the objective lens system is arranged to focus the incident beam into a spot, and the focus controller is arranged to generate a focus control signal to drive and position the objective lens system; and a controller arranged to cooperate with the focus controller for moving the objective lens system, to receive the central aperture signal during the movement of the objective lens system, to analyze the central aperture signal for determining the focus actuator position, and to determine the disk type associated with the substrate thickness.
    • 提供了一种用于确定与包括衬底的光盘的衬底厚度相关联的光盘类型的光盘驱动器,其包括用于产生光束的光源,布置成将光束引导到光盘以形成入射光束的光学装置, 布置成感测反射光束并产生传感器输出信号的传感器,包括物镜系统和聚焦控制器的聚焦系统,其中所述物镜系统被布置成将入射光束聚焦到光斑中,并且聚焦控制器是 布置成产生聚焦控制信号以驱动和定位物镜系统; 以及控制器,其被配置为与所述对焦控制器协作以移动所述物镜系统,以在所述物镜系统移动期间接收所述中心孔径信号,以分析所述中心孔径信号以确定所述聚焦致动器位置,并且确定所述盘 类型与衬底厚度相关联。
    • 5. 发明申请
    • Optical Apparatus Capable of Generating Adaptive Control Signals
    • 能够生成自适应控制信号的光学装置
    • US20080225661A1
    • 2008-09-18
    • US11994534
    • 2006-06-28
    • Mohamad-Hussein El HusseiniStefan GeusensJeroen Arnoldus Leonardus Johannes Raaymakers
    • Mohamad-Hussein El HusseiniStefan GeusensJeroen Arnoldus Leonardus Johannes Raaymakers
    • G11B5/58
    • G11B7/0948
    • The present invention discloses an optical apparatus capable of reproducing/recording information from/to an optical carrier, e.g. a DVD or BD disk. The apparatus has control means for positioning/focusing a radiation beam (5) on the carrier and photo detection means for detection of radiation reflected from the carrier. Additionally, defect detection means (DEFO) for detection of surface defect areas (A1, A2) can indicate where surface defects, e.g. scratches etc., are present. Processing means are adapted for integrating, and preferably differentiate, error signals (RE, FE) immediately after the beam (5.b) is exiting a defect area (A1) for generating adaptive control signals (AD_RE, AD_FE). The optical system is adapted to apply the adaptive control signals (AD_RE, AD_FE) when the beam is positioned in the defect area (A1) again, thereby reducing off-track deviation as the beam (5.d) exits the defect area (A1).
    • 本发明公开了一种能够从光学载体再现/记录信息的光学装置,例如, DVD或BD盘。 该装置具有用于将辐射束(5)定位/聚焦在载体上的控制装置和用于检测从载体反射的辐射的光检测装置。 此外,用于检测表面缺陷区域(A 1,A 2)的缺陷检测装置(DEFO)可以指示表面缺陷,例如, 划痕等。 处理装置适于在波束(5b)离开用于产生自适应控制信号(AD_RE,AD_FE)的缺陷区域(A 1)之后立即整合并优选地区分误差信号(RE,FE)。 当光束再次定位在缺陷区域(A 1)中时,光学系统适于施加自适应控制信号(AD_RE,AD_FE),从而当光束(5d)离开缺陷区域 A 1)。