公开(公告)号：US07859955B2

公开(公告)日：2010-12-28

申请号：US12548653

申请日：2009-08-27

申请人： Jae-cheol Bae ,  In-joo Kim ,  Young-jae Park ,  Taek-seong Jeong

发明人： Jae-cheol Bae ,  In-joo Kim ,  Young-jae Park ,  Taek-seong Jeong

IPC分类号： G11B7/00

CPC分类号： G11B7/08511 ,  G03H2250/34 ,  G03H2250/42 ,  G11B7/00781 ,  G11B7/083 ,  G11B7/1275 ,  G11B7/24038 ,  G11B7/24044

摘要： An apparatus for recording/reproducing holographic data and a method of adjusting a position of a recording layer. While an objective lens focusing first and second lights having different wavelengths on a holographic data storage medium including first and second reflective layers reciprocatingly moves in a direction of an optical axis, a focus movement unit, which moves a focus of the second light in the direction of the optical axis until a time difference between a first detection signal generated when the first light is reflected from the first reflective layer and a second detection signal generated when the second light is reflected from the second reflective layer becomes a value corresponding to a position of a desired recording layer, is controlled to move a focal position of the second light so that the focal position of the second light can be adjusted to the position of a desired recording layer.

摘要翻译： 用于记录/再现全息数据的装置和调节记录层的位置的方法。 虽然在包括第一和第二反射层的全息数据存储介质上聚焦具有不同波长的第一和第二光的物镜在光轴的方向上往复运动，但是聚焦移动单元使第二光的焦点朝向 直到当第一光从第一反射层反射时产生的第一检测信号与当第二光从第二反射层反射时产生的第二检测信号之间的时间差变为对应于第二反射层的位置的值 控制所需的记录层，以移动第二光的焦点位置，使得可以将第二光的焦点位置调整到所需记录层的位置。

公开(公告)号：US20100061210A1

公开(公告)日：2010-03-11

申请号：US12547826

申请日：2009-08-26

申请人： In-joo KIM ,  Young-Jae Park ,  Jae-cheol Bae

发明人： In-joo KIM ,  Young-Jae Park ,  Jae-cheol Bae

IPC分类号： G11B3/74 ,  G11B7/24

CPC分类号： G11B7/00781 ,  G11B7/0065 ,  G11B7/083 ,  G11B7/08511 ,  G11B7/24044 ,  G11B2007/0013

摘要： An optical disc, and a recording/reproducing method and apparatus to record information on the optical disc. The optical disc includes an optical information storage layer, including a layer format region and a user data region. The layer format region is divided into virtual layers that are disposed at different depths. The virtual layers include layer information to distinguish the virtual layers from one another.

摘要翻译： 一种光盘，以及用于在光盘上记录信息的记录/再现方法和装置。 光盘包括光信息存储层，包括层格式区域和用户数据区域。 层格式区域被分成设置在不同深度的虚拟层。 虚拟层包括用于将虚拟层彼此区分开的层信息。

公开(公告)号：US20100110846A1

公开(公告)日：2010-05-06

申请号：US12571752

申请日：2009-10-01

申请人： Young-jae PARK ,  Jae-cheol Bae ,  In-Joo Kim

发明人： Young-jae PARK ,  Jae-cheol Bae ,  In-Joo Kim

IPC分类号： G11B7/00

CPC分类号： G11B7/0065

摘要： A method and apparatus to control a position in which data is to be recorded on a holographic data recording medium by using interference between a reference light and a signal light, the method including: irradiating the reference light and the signal light on the holographic data recording medium; generating a focus error signal that indicates a distance difference between a first focus corresponding to a focus of the reference light on the holographic data recording medium and a second focus corresponding to a focus of the signal light on the holographic data recording medium, based on information about a reflective signal light generated when the irradiated signal light is reflected from a reflective transmission layer of the holographic data recording medium; and moving the second focus to a position of the first focus, based on the focus error signal.

摘要翻译： 一种通过使用参考光和信号光之间的干涉来控制要在全息数据记录介质上记录数据的位置的方法和装置，所述方法包括：将参考光和信号光照射在全息数据记录上 中; 基于信息产生指示对应于全息数据记录介质上的参考光的焦点的第一焦点与对应于全息数据记录介质上的信号光的焦点的第二焦点之间的距离差的聚焦误差信号 关于当照射的信号光从全息数据记录介质的反射透射层反射时产生的反射信号光; 并且基于聚焦误差信号将第二焦点移动到第一焦点的位置。

公开(公告)号：US08363532B2

公开(公告)日：2013-01-29

申请号：US12571752

申请日：2009-10-01

申请人： Young-jae Park ,  Jae-cheol Bae ,  In-Joo Kim

发明人： Young-jae Park ,  Jae-cheol Bae ,  In-Joo Kim

IPC分类号： G11B7/00

CPC分类号： G11B7/0065

摘要： A method and apparatus to control a position in which data is to be recorded on a holographic data recording medium by using interference between a reference light and a signal light, the method including: irradiating the reference light and the signal light on the holographic data recording medium; generating a focus error signal that indicates a distance difference between a first focus corresponding to a focus of the reference light on the holographic data recording medium and a second focus corresponding to a focus of the signal light on the holographic data recording medium, based on information about a reflective signal light generated when the irradiated signal light is reflected from a reflective transmission layer of the holographic data recording medium; and moving the second focus to a position of the first focus, based on the focus error signal.

摘要翻译： 一种通过使用参考光和信号光之间的干涉来控制要在全息数据记录介质上记录数据的位置的方法和装置，所述方法包括：将参考光和信号光照射在全息数据记录上 中; 基于信息产生指示对应于全息数据记录介质上的参考光的焦点的第一焦点与对应于全息数据记录介质上的信号光的焦点的第二焦点之间的距离差的聚焦误差信号 关于当照射的信号光从全息数据记录介质的反射透射层反射时产生的反射信号光; 并且基于聚焦误差信号将第二焦点移动到第一焦点的位置。

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。

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：US08009542B2

公开(公告)日：2011-08-30

申请号：US12325002

申请日：2008-11-28

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

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

IPC分类号： G11B7/00

CPC分类号： G11B7/083 ,  G11B7/0065 ,  G11B7/00781 ,  G11B7/0938 ,  G11B7/1275 ,  G11B7/1369 ,  G11B7/1395 ,  G11B7/24038 ,  G11B7/24044

摘要： A holographic information recording and/or reproducing apparatus includes: a light source to emit light; a polarization conversion device to form a polarized signal beam and an orthogonal polarized reference beam; an optical path forming optical system to separate the optical paths of the signal beam and the reference beam; a focus adjustment optical system disposed on the optical path of at least one of the signal beam and the reference beam, and to vary a position of a focus of at least one of the signal beam and the reference beam in a depth direction of the holographic information storage medium; an objective lens to focus the signal beam and the reference beam in the holographic information storage medium, and form an interference pattern to record information; and a 4f relay system disposed on an optical path between the focus adjustment optical system and the objective lens.

摘要翻译： 全息信息记录和/或再现装置包括：发光的光源; 偏振转换装置，用于形成偏振信号光束和正交偏振参考光束; 用于分离信号光束和参考光束的光路的光路形成光学系统; 设置在所述信号光束和所述参考光束中的至少一个的光路上的聚焦调整光学系统，并且在所述全息图的深度方向上改变所述信号光束和所述参考光束中的至少一个的焦点的位置 信息存储介质; 物镜，用于将信号光束和参考光束聚焦在全息信息存储介质中，并形成干涉图案以记录信息; 以及设置在聚焦调节光学系统和物镜之间的光路上的4f中继系统。

公开(公告)号：US08270051B2

公开(公告)日：2012-09-18

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： G03H1/02

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。

公开(公告)号：US08213287B2

公开(公告)日：2012-07-03

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：US08149676B2

公开(公告)日：2012-04-03

申请号：US12109619

申请日：2008-04-25

申请人： Taek-seong Jeong ,  Jae-cheol Bae ,  Tatsuhiro Otsuka ,  Hyun-soo Park ,  Young-min Cheong

发明人： Taek-seong Jeong ,  Jae-cheol Bae ,  Tatsuhiro Otsuka ,  Hyun-soo Park ,  Young-min Cheong

IPC分类号： G11B7/00

CPC分类号： G11B7/139 ,  G11B7/0065 ,  G11B7/1374

摘要： A method and apparatus for recording and/or reproducing holographic data and a holographic information storage medium, wherein the apparatus for recording and/or reproducing holographic information includes an optical pickup emitting light onto a holographic information storage medium and receiving the emitted light. The optical pickup includes: a light source unit emitting a signal beam and a reference beam in a recording mode; and a focusing optical system focusing the signal beam and the reference beam on one focal point in the holographic information storage medium so that information can be recorded by using an interference pattern formed along a depth direction of the holographic information storage medium in the vicinity of the focal point, wherein the numerical aperture of the focusing optical system for the signal beam is different from the numerical aperture of the focusing optical system for the reference beam.

摘要翻译： 一种用于记录和/或再现全息数据和全息信息存储介质的方法和装置，其中用于记录和/或再现全息信息的装置包括将光发送到全息信息存储介质上并接收发射的光的光学拾取器。 光拾取器包括：以记录模式发射信号光束和参考光束的光源单元; 以及将信号光束和参考光束聚焦在全息信息存储介质中的一个焦点上的聚焦光学系统，以便可以通过使用沿着全息信息存储介质的深度方向形成的干涉图案来记录信息 焦点，其中用于信号束的聚焦光学系统的数值孔径与用于参考光束的聚焦光学系统的数值孔径不同。