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    • 1. 发明申请
    • Spot Aberrations in a Two-Dimensional Optical Storage System
    • 二维光存储系统中的斑点像差
    • US20080008061A1
    • 2008-01-10
    • US11568811
    • 2005-05-11
    • Dominique BrulsAlexander Van Der LeeChristopher Busch
    • Dominique BrulsAlexander Van Der LeeChristopher Busch
    • G11B20/18
    • G11B7/00736G11B7/005G11B7/0053G11B7/0956G11B7/14
    • Thus, in conventional, one-dimensional optical storage, the data is arranged in a linear fashion and is read out by a single spot (102). In order to increase data rates and storage capacity, it has been proposed to arrange the data in an isotropic, hexagonal lattice (200) and employ multiple spots (202) for read-out. Due to the high bit-intensity, 2D inter symbol interference (ISI) has a significant effect on bit detection. Aberrations in the readout spots (202) can change the form of ISI and, therefore, hamper 2D bit detection. Thus, a method and apparatus is proposed, wherein by evaluating the ISI of the readout spots (202) by scanning over a known calibration pattern, i.e. a bit pattern selected such that its optical response is characteristic of the shape of the readout spot, the aberrations in the readout spot can be determined and beneficially compensated for, as required.
    • 因此,在传统的一维光学存储器中,数据以线性方式布置并且由单个点读出(102)。 为了提高数据速率和存储容量,已经提出将数据排列成各向同性的六边形网格(200),并且使用多个点(202)进行读出。 由于高比特率,2D码间干扰(ISI)对比特检测有显着影响。 读出点(202)中的像差可以改变ISI的形式,因此妨碍2D位检测。 因此,提出了一种方法和装置,其中通过通过扫描已知的校准图案来评估读出点(202)的ISI,即,选择的位图案使得其光学响应是读出点的形状的特征, 可以根据需要确定读出点中的像差并有益地补偿。
    • 2. 发明申请
    • Method and apparatus for two dimensional optical storage of data
    • 用于数据二维光学存储的方法和装置
    • US20070104064A1
    • 2007-05-10
    • US10581642
    • 2004-11-30
    • Alexander Van Der LeeChristopher BuschDominique BrulsPeter Coops
    • Alexander Van Der LeeChristopher BuschDominique BrulsPeter Coops
    • G11B7/00
    • G11B7/00736G11B2007/0013
    • The invention relates to a data processing system comprising a computer having a memory for storage and retrieval of at least one application program embodying a pre-determined functionality, and for storage and retrieval of at least one data-file, which computer comprises a user interface for entertaining communication between the computer and a user of said computer, whereby the at least one application program comprises validation software for checking and enabling the operability of said application program in connection with the at least one data-file, and processing software for executing the said functionality in connection with the at least one data-file in dependence of said enabling by the validation software, whereby the validation software is executable separately and independent from the processing software.
    • 本发明涉及一种数据处理系统,包括具有用于存储和检索体现预定功能的至少一个应用程序的存储器的计算机,以及用于存储和检索至少一个数据文件的计算机,该计算机包括用户界面 用于在所述计算机和所述计算机的用户之间进行通信,由此所述至少一个应用程序包括用于检查并使所述应用程序与所述至少一个数据文件相关的可操作性的验证软件,以及用于执行所述至少一个数据文件的处理软件 所述与所述至少一个数据文件相关的功能与所述验证软件的所述启用相关,由此所述验证软件可独立且独立于所述处理软件执行。
    • 4. 发明申请
    • Optical reader/writer with dedicated focus tracking beam
    • 具有专用聚焦跟踪光的光学读写器
    • US20070171785A1
    • 2007-07-26
    • US11568274
    • 2005-04-22
    • Alexander Van Der LeeChristopher Busch
    • Alexander Van Der LeeChristopher Busch
    • G11B7/00
    • G11B7/1353G11B7/0908
    • The present invention relates to an optical reader for a two dimensional storage disc, comprising means (21, 22, 14, 15) for generating a plurality of laser beams and projecting said beams onto a rotating disc, means (24, 25, 26) for detecting the beams after being diffracted by the disc, and means (24, 27, 28) for determining a focus error signal (29) based on one of said plurality of beams. The plurality of beams comprises an array of beams having a first polarization, and a dedicated central focus tracking beam having a second polarization, orthogonal to the first polarization. The beams may be generated by a polarization dependent diffraction element. Or a beam having one polarization may be diffracted into a plurality of beams and recombined with a beam having another polarization.
    • 本发明涉及一种用于二维存储盘的光学读取器,包括用于产生多个激光束并将所述光束投影到旋转盘上的装置(21,22,14,15),装置(24,25,26) 用于在由盘衍射之后检测光束;以及用于基于所述多个光束之一确定聚焦误差信号(29)的装置(24,27,28)。 多个光束包括具有第一偏振的光束阵列,以及具有与第一偏振正交的第二偏振的专用中心焦点跟踪光束。 光束可以由偏振相关的衍射元件产生。 或者具有一个偏振的光束可以被衍射成多个光束并与具有另一偏振的光束重新组合。
    • 5. 发明申请
    • Record carrier for the optical storage and retrieval of information
    • 记录载体的光学存储和检索信息
    • US20070030794A1
    • 2007-02-08
    • US10556611
    • 2004-05-13
    • Christopher BuschJohannes Theordorus WilderbeekAlexander Van Der Lee
    • Christopher BuschJohannes Theordorus WilderbeekAlexander Van Der Lee
    • G11B3/70
    • G11B7/252B82Y10/00G11B7/24G11B7/2585G11B7/259G11B7/2595
    • The invention relates to a record carrier for the storage and retrieval of information, comprising: a substrate (1), an active layer (2) for retention of information, the active layer employing bit-position encoding for the storage and retrieval of information and an energy shielding layer for shielding the energy during writing of the information in the active layer. Preferably, the energy shielding layer comprises a patterned reflective mask layer (3) or a switchable mask layer. Preferably, the reflective mask layer comprises a material with a relatively high thermal conductivity. Preferably, the patterned reflective mask layer comprises a metal or a metal alloy, preferably comprising aluminum silver, gold or copper. Preferably, the switchable mask layer comprises a thermo-chromic layer and is substantially transparent during the retrieval of information from the active layer. According to the invention, the record carrier has a relatively high information density.
    • 本发明涉及一种用于存储和检索信息的记录载体,包括:衬底(1),用于保留信息的有源层(2),所述有源层采用用于存储和检索信息的比特位置编码,以及 能量屏蔽层,用于在有源层中写入信息期间屏蔽能量。 优选地,能量屏蔽层包括图案化反射掩模层(3)或可切换掩模层。 优选地,反射掩模层包括具有相对高的导热性的材料。 优选地,图案化的反射掩模层包括金属或金属合金,优选包括铝银,金或铜。 优选地,可切换掩模层包括热铬层,并且在从有源层检索信息期间基本上是透明的。 根据本发明,记录载体具有较高的信息密度。
    • 6. 发明申请
    • Multi-beam optical scanning device
    • 多光束光学扫描装置
    • US20070082562A1
    • 2007-04-12
    • US10577101
    • 2004-10-29
    • Alexander Van Der LeeChristopher Busch
    • Alexander Van Der LeeChristopher Busch
    • H01R13/73
    • G11B7/0916G11B7/08511G11B7/1381G11B7/14
    • The present invention relates to an optical scanning device for reading out from or writing on an information carrier. Said optical scanning device comprises a radiation source for producing a radiation beam, means for dividing the rad i tion am infordation calriero sub-beams, focusing means for focusing the plurality of spots on said information carrier, which reflects said plurality of radiation sub-beams towards a detection branch and focus error detection means for detecting a focus error signal. Said focus error detection means comprise on said detection branch, a servo lens for focusing the reflected radiation sub-beams onto a focus plane, a spatial filter for isolating a reflected radiation sub-beam at the focus plane and a split detector for detecting a focus error signal from the isolated radiation sub-beam. The focus error detection means further comprise decision sub-means for deciding whether the focus error signal can be used to correct a position of the focusing means.
    • 本发明涉及一种用于从信息载体上读出或写入的光学扫描装置。 所述光学扫描装置包括用于产生辐射束的辐射源,用于分割辐射光束子光束的装置,用于将多个光点聚焦在所述信息载体上的聚焦装置,其反射所述多个辐射子束 朝向检测分支和聚焦误差检测装置,用于检测聚焦误差信号。 所述聚焦误差检测装置包括在所述检测支路上的用于将反射的辐射子束聚焦到聚焦平面上的伺服透镜,用于隔离焦点平面处的反射辐射子光束的空间滤光器和用于检测焦点的分割检测器 来自隔离辐射子光束的误差信号。 聚焦误差检测装置还包括判定子装置,用于判定聚焦误差信号是否可用于校正聚焦装置的位置。