公开(公告)号：US20080094998A1

公开(公告)日：2008-04-24

申请号：US11781490

申请日：2007-07-23

申请人： Taek-seong JEONG ,  Jong Chul Choi ,  Moon-Il Jung

发明人： Taek-seong JEONG ,  Jong Chul Choi ,  Moon-Il Jung

IPC分类号： G11B7/00

CPC分类号： G11B7/1381 ,  G11B7/0065 ,  G11B7/083

摘要： A system for generating a reference beam angle control signal and a holographic information recording and/or reproducing apparatus including the system are provided. When record of a two-dimensionally (2D) modulated signal beam superposed in the same volume of a holographic medium is called a book, the system includes: a first photo-detector and a second photo-detector arranged to detect signal beams reproduced from first and second adjacent books disposed on both sides of a specific book that is to be reproduced from the holographic medium; and a signal processing unit arranged to obtain a reference beam angle control signal for controlling the incident angle of a reference beam emitted to the holographic medium using a differential signal between output signals of the first and second photo-detectors.

摘要翻译： 提供了一种用于产生参考光束角度控制信号的系统和包括该系统的全息信息记录和/或再现设备。 当叠加在相同体积的全息介质中的二维（2D）调制信号光束的记录称为书时，该系统包括：第一光电检测器和第二光电检测器，被布置成检测从第一 以及设置在要从全息介质再现的特定书的两侧的第二相邻书; 以及信号处理单元，其被配置为获得用于使用第一和第二光电检测器的输出信号之间的差分信号来控制发射到全息介质的参考光束的入射角的参考光束角度控制信号。

公开(公告)号：US20090073852A1

公开(公告)日：2009-03-19

申请号：US12136285

申请日：2008-06-10

申请人： Taek-seong JEONG ,  Jae-cheol Bae ,  Tae-kyung Kim ,  Sung-hee Hwang ,  Moon-Il Jung

发明人： Taek-seong JEONG ,  Jae-cheol Bae ,  Tae-kyung Kim ,  Sung-hee Hwang ,  Moon-Il Jung

IPC分类号： G11B7/00

CPC分类号： G11B7/1374 ,  G11B7/0065 ,  G11B7/0908 ,  G11B7/1392

摘要： An optical pickup of a holographic data recording/reproducing apparatus that emits light to a reflective holographic data storage medium in which a substrate, a reflection layer, a recording layer, and a cover layer are sequentially stacked, and receives the emitted light, the optical pickup including: a first light source unit to emit, during a recording operation, a signal beam having a first polarization and a reference beam having a second polarization perpendicular to the first polarization along the same optical path; and a main lens unit having a refractivity that varies according to a polarization of a passing light, so as to cause the signal beam to be reflected from the reflection layer then focused on a focal point, and to cause the reference beam to pass through the cover layer then be directly focused on the focal point

摘要翻译： 一种全息数据记录/再现装置的光学拾取器，其向反射全息数据存储介质发射光，其中衬底，反射层，记录层和覆盖层顺序地堆叠，并且接收发射的光，光学 拾取器包括：第一光源单元，在记录操作期间，沿着相同的光路发射具有第一偏振的信号光束和具有垂直于第一偏振的第二偏振的参考光束; 以及具有根据通过光的偏振而变化的折射率的主透镜单元，以使信号光从反射层反射然后聚焦在焦点上，并使参考光束通过 覆盖层然后直接聚焦在焦点上

公开(公告)号：US20090153929A1

公开(公告)日：2009-06-18

申请号：US12262404

申请日：2008-10-31

申请人： Taek-seong JEONG ,  Jae-cheol Bae

发明人： Taek-seong JEONG ,  Jae-cheol Bae

IPC分类号： G03H1/04 ,  G03H1/22

CPC分类号： G11B7/083 ,  G11B7/0065 ,  G11B7/1356 ,  G11B7/1365 ,  G11B2007/0924

摘要： A holographic information recording and/or reproducing apparatus, including a light source to emit light; a polarization forming optical system to form a polarized signal beam and a polarized reference beam from the light emitted from the light source, wherein the polarized signal beam and the polarized reference beam are incident on a holographic information storage medium through an identical surface; a focusing optical system to focus the polarized signal beam and the polarized reference beam onto in the holographic information storage medium so that information is recorded by an interference pattern; and an adjustment optical system to set the focal positions of the polarized signal beam and the polarized reference beam, and to adjust a difference between a path of the polarized signal beam and a path of the polarized reference beam.

摘要翻译： 一种全息信息记录和/或再现装置，包括发光的光源; 偏振光形成光学系统，用于从光源发射的光形成偏振信号光束和偏振参考光束，其中偏振信号光束和偏振参考光束通过相同的表面入射到全息信息存储介质上; 聚焦光学系统将偏振信号光束和偏振参考光束聚焦到全息信息存储介质上，以便通过干涉图案记录信息; 以及调整光学系统，用于设置偏振信号光束和偏振参考光束的焦点位置，并调整偏振信号光束的路径与偏振参考光束的路径之间的差。

公开(公告)号：US20100008204A1

公开(公告)日：2010-01-14

申请号：US12340843

申请日：2008-12-22

申请人： Jae-cheol BAE ,  Tae-kyung KIM ,  Taek-seong JEONG

发明人： Jae-cheol BAE ,  Tae-kyung KIM ,  Taek-seong JEONG

IPC分类号： G11B7/00

CPC分类号： G11B7/083 ,  G03H1/26 ,  G03H2001/266 ,  G11B7/1275

摘要： A multi-wavelength micro holographic data recording and/or reproducing apparatus in which decentering of light beams having different wavelengths is compensated for, the apparatus including: at least two light sources emitting the light beams; at least two photodetectors respectively detecting the light beams reflected from an optical recording medium; and an optical system guiding the light beams emitted from the light sources to the optical recording medium along a common optical path and guiding the light beams reflected from the optical recording medium to corresponding photodetectors, wherein the optical system includes: an objective lens focusing a light beam on the optical recording medium; a common decenter compensation member provided on the common optical path to adjust traveling angles of the light beams; and an individual decenter compensation member provided on an individual optical path of a light beam of individual wavelength to adjust a traveling angle of the light beam.

摘要翻译： 一种多波长微全息数据记录和/或再现装置，其中补偿了具有不同波长的光束的偏心，该装置包括：发射光束的至少两个光源; 至少两个光电检测器分别检测从光记录介质反射的光束; 以及光学系统，其将从所述光源发射的光束沿着公共光路引导到所述光学记录介质，并将从所述光学记录介质反射的光束引导到相应的光电检测器，其中所述光学系统包括：聚焦光 光束在光学记录介质上; 在公共光路上设置用于调整光束的行进角度的公共偏心补偿部件; 以及设置在各波长的光束的各个光路上以调整光束的行进角度的个体倾斜补偿部件。

公开(公告)号：US20080239426A1

公开(公告)日：2008-10-02

申请号：US11961080

申请日：2007-12-20

申请人： Taek-seong JEONG

发明人： Taek-seong JEONG

IPC分类号： G03H1/26

CPC分类号： G11B7/0065 ,  G03H1/265 ,  G11B7/00772

摘要： A holographic storage medium includes a hologram including data recorded in a plurality of pages in a superimposed fashion by interference of a signal beam and a reference beam, and an additional page recorded between two adjacent pages in the plurality of pages, wherein a portion of the data is recorded to a region of the additional page having a relatively small selectivity compared to other regions of the additional page without recording on the other regions.

摘要翻译： 全息存储介质包括全息图，其包括通过信号光束和参考光束的干涉以叠加的方式记录在多个页面中的数据，以及记录在多个页面中的两个相邻页面之间的附加页面，其中， 与附加页面的其他区域相比，数据被记录到附加页面的具有相对较小选择性的区域而不在其他区域上记录。

公开(公告)号：US20100020375A1

公开(公告)日：2010-01-28

申请号：US12503192

申请日：2009-07-15

申请人： Taek-seong JEONG ,  Tae-kyoung Kim ,  Jae-cheol Bae

发明人： Taek-seong JEONG ,  Tae-kyoung Kim ,  Jae-cheol Bae

IPC分类号： G03H1/26 ,  G03H1/04

CPC分类号： G11B7/0065 ,  G11B7/00772 ,  G11B7/083 ,  G11B2007/0009

摘要： A method of recording holographic information includes recording a hologram mark and a homogeneous mark in a holographic data storage medium with a volume to alternatively locate the hologram mark and the homogeneous mark. The hologram mark has a varied refractive index distribution due to constructive/destructive interferences between two light beams and indicates information, while the homogeneous mark has a more uniform refractive index distribution than the hologram mark.

摘要翻译： 记录全息信息的方法包括在具有体积的全息数据存储介质中记录全息标记和均匀标记，以交替地定位全息标记和均匀标记。 由于两个光束之间的建构性/破坏性干扰，全息图标记具有不同的折射率分布，并且指示信息，而均匀标记具有比全息标记更均匀的折射率分布。