公开(公告)号：EP1526414A4

公开(公告)日：2008-04-23

申请号：EP03766617

申请日：2003-05-16

申请人： PIONEER CORP

发明人： ITOH Y ,  TANAKA S ,  TACHIBANA A ,  KUBOTA Y ,  KURODA K ,  SUGIURA S

IPC分类号： G03H1/16 ,  G03H1/26 ,  G06K7/12 ,  G06K19/06 ,  G11B7/0065 ,  G03H1/04

CPC分类号： G03H1/265 ,  G03H1/16 ,  G03H1/26 ,  G03H2260/54 ,  G11B7/0065

摘要： A compatible hologram recording/reproducing system comprises a support unit for removalbly supporting a recording medium made of a photosensitive material, a signal light generating unit for directing a coherent light beam modulated with predetermined data to a recording medium so as to create a diffraction grating by forming a three-dimensional light interference pattern therein, a sensor unit for sensing the diffracted light from the diffraction grating and photo-electrical transducing it, and a demodulating unit for demodulating the predetermined data from the output of the sensor unit. The sensor unit has an intermediate data creating section for creating intermediate data. The demodulating section holds a conversion table where the intermediate data is related to predetermined data uniquely, conducts calculation according to the correspondence relationship of the conversion table, and demodulates the predetermined data.

公开(公告)号：EP1909267A1

公开(公告)日：2008-04-09

申请号：EP06121731.1

申请日：2006-10-04

申请人： Thomson Holding Germany GmbH & Co. OHG

发明人： Knittel, Joachim

IPC分类号： G11B7/0065 ,  G11B7/135

CPC分类号： G11B7/0065 ,  G11B7/1369

摘要： The present invention relates to a compact apparatus for reading from and/or writing to holographic storage media, and to a filter (17) for use in such an apparatus.
According to the invention, a polarizing filter (17) for a light beam has:
- a substrate with an outer zone (17a) and an inner zone (17b), the outer zone (17a) and the inner zone (17b) having different optical properties for a first direction of polarization and a second direction of polarization, and
- a wave plate (17c) attached to the substrate for influencing the polarization of the light beam, wherein a part of the wave plate (17c) corresponding to either the outer zone (17a) or the inner zone (17b) is switchable.

摘要翻译： 本发明涉及用于从全息存储介质读取和/或写入全息存储介质的紧凑装置，以及用于这种装置中的过滤器（17）。 根据本发明，用于光束的偏振滤光器（17）具有：具有外部区域（17a）和内部区域（17b）的基底，外部区域（17a）和内部区域（17b）具有不同的 用于第一偏振方向和第二偏振方向的光学特性，以及 - 附着到基板上用于影响光束偏振的波片（17c），其中波片（17c）的一部分对应于 外部区域（17a）或内部区域（17b）是可切换的。

公开(公告)号：EP1720158A3

公开(公告)日：2008-04-09

申请号：EP06001033.7

申请日：2006-01-18

申请人： FUJI XEROX CO., LTD.

发明人： Kawano, Katsunori ,  Haga, Koichi ,  Yasuda, Shin ,  Furuki, Makoto ,  Minabe, Jiro ,  Ogasawara, Yasuhiro ,  Hayashi, Kazuhiro ,  Yoshizawa, Hisae

IPC分类号： G11B7/0065 ,  G11C13/04

CPC分类号： G11C13/042 ,  G11B7/0065

摘要： A hologram recording method is provided. The method includes eliminating a DC component from a Fourier transformation image of a signal light for expressing binary digital data as a brightness image, and irradiating an optical recording medium simultaneously with the signal light from which the DC component has been eliminated and a reference light to record an image edge portion of the signal light onto the optical recording medium as a hologram.

公开(公告)号：EP1494224B1

公开(公告)日：2008-03-12

申请号：EP04000080.4

申请日：2004-01-05

申请人： Daewoo Electronics Corporation

发明人： Kim, Kun Yul, Daewoo Electronics Corporation

IPC分类号： G11B7/085 ,  G11B7/0065 ,  G11B23/00

CPC分类号： G11B7/26 ,  G11B7/0065 ,  G11B7/085

公开(公告)号：EP1456840B1

公开(公告)日：2008-02-20

申请号：EP01994836.3

申请日：2001-12-07

申请人： Research Investment Network, Inc

发明人： KIEFER, Renaud ,  EL HAFIDI, Idriss ,  TAKAKURA, Yoshitate ,  FONTAINE, Joel ,  GRZYMALA, Romualda ,  MEYRUEIS, Patrick

IPC分类号： G11B7/0065

CPC分类号： G11B7/08564 ,  G11B7/0065 ,  G11B7/1362 ,  G11C13/04 ,  G11C13/042 ,  G11C13/047

摘要： The present invention comprises a solid-state system for reading information from a photonics diffractive memory. An acousto-optic deflector directs a convergent light beam onto a micr-mirror array which then reflects the light beam onto the photonics diffractive memory at a predetermined point and angle so as to access a packet of information. The compact architecture for this diffractive optics systems in accordance with the present invention integrates a number of components into a compact package, including an acousto-optic deflector and a microoptoelectromechanical system (MOEMS) mirror array whose elements oscillate with a sznchronized frequency adapted to that of the acousto-optic deflector. This architecture reduces the addressing component of a reading system for a photonics diffractive memory to a matchbox size.

公开(公告)号：EP1881494A2

公开(公告)日：2008-01-23

申请号：EP07014172.6

申请日：2007-07-19

申请人： FUJIFILM Corporation

发明人： Usami, Yoshihisa ,  Masukane, Kazuyuki

IPC分类号： G11B7/0065 ,  G03H1/04

CPC分类号： G11B7/0065 ,  G03H1/04 ,  G03H1/041 ,  G03H1/0465 ,  G03H2223/17 ,  G11B7/083 ,  G11B7/1365 ,  G11B7/24044 ,  G11B7/245 ,  G11B7/266

摘要： The present invention provides an optical recording method and an optical recording apparatus for holographically recording information allowing for reductions in uneven consumption of the material through the thickness of a recording layer during recording to achieve high density recording and an increased recording capacity, an optical recording medium, and an optical reproducing method and an optical reproducing apparatus using the optical recording method. The optical recording method includes irradiating the optical recording medium with an information beam and a reference beam, dividing at least one of the information beam and the reference beam into two or more between a light source thereof and an optical recording medium, and adjusting the optical path lengths of the divided information beams and reference beams so that they focus on points different from each other through the thickness of the recording layer.

摘要翻译： 本发明提供一种光学记录方法和光学记录装置，用于记录以实现高密度记录期间和到光记录介质上加大的记录容量全息地记录信息允许在通过记录层的厚度的材料的不均匀消耗的减少 和光学再生方法和使用该光记录方法的光再现装置。 的光记录方法包括：照射在信息光束和参考光束在光学记录介质，将所述信息光束中的至少一个和参考光束分成两个或光源之间更多种的组合，并光学记录介质，和调整光学 分割信息光束和参考光束的路径长度，以便thatthey可以专注于通过记录层的厚度从海誓山盟不同点。

公开(公告)号：EP1873764A1

公开(公告)日：2008-01-02

申请号：EP06013569.6

申请日：2006-06-30

申请人： Bayer Innovation Gmbh

发明人： Koppa, Pal ,  Remenyi, Judit ,  Ujhelyi, Ferenc ,  Erdei, Gabor

IPC分类号： G11B7/0065

CPC分类号： G11B7/0065 ,  G03H1/16 ,  G03H1/22 ,  G03H2210/12 ,  G03H2223/20 ,  G03H2225/32 ,  G11B7/083

摘要： The present invention concerns a method for parallel optical decoding of a digital phase image to an intensity image by algorithmic encoding of a data page into phase image and parallel optical decoding by capturing the interference of the phase data page and its copy shifted by one or a few pixels with respect to each other.

摘要翻译： 本发明在强度图像由数据页为相位图像和并行光学解码的算法编码通过捕获相位数据页由一个或一个移位的干扰和其复制涉及一种用于数字相位图像的并行的光学解码的方法，以 几个像素相对于海誓山盟。

公开(公告)号：EP1607983A3

公开(公告)日：2007-12-19

申请号：EP05253456.7

申请日：2005-06-04

申请人： ALPS ELECTRIC CO., LTD.

发明人： Mytsuya, Shinji/Alps Electric Co. Ltd.

IPC分类号： G11B7/0065 ,  G11B7/125 ,  G03H1/26 ,  G11C13/04 ,  G11B7/135

CPC分类号： G03H1/26 ,  G03H1/265 ,  G03H2001/266 ,  G03H2222/13 ,  G11B7/0065 ,  G11B7/1275 ,  G11B2007/13727 ,  G11C13/04 ,  G11C13/042

摘要： A hologram device records/reproduces information on/from a recording medium (3) having holograms (4) thereon by irradiating light beams emitted from a light source (1) thereon. The light source (1) is composed of a substrate (10) and a plurality of light emitting units (11a,11b,11c) arranged on the substrate. A condensing unit (2) is provided between the light source and the recording medium (3) to condense a plurality of light beams (L0a,L0b,L0c) emitted from the plurality of light emitting units onto approximately the same location (4) of the recording medium.

公开(公告)号：EP1612722A4

公开(公告)日：2007-10-17

申请号：EP04726645

申请日：2004-04-08

申请人： NIPPON TELEGRAPH & TELEPHONE

发明人： ENDO MASAHIRO ,  KUROKAWA YOSHIAKI ,  YAGI SHOGO ,  TANABE TAKAYA

IPC分类号： G11B7/0065 ,  G06K19/06

CPC分类号： G06K19/06037

摘要： There are provided an information coding device, an information decoding device, a method thereof, and a program capable of expressing a plenty of information by using a small number of pixels. Information bits which are input are coded as a 2-dimensional image block consisting of m pixels (m is a natural number) multiplied by n (n is a natural number). More specifically, the pixels indicating information bits are arranged in a coding section defined by (m - o) pixels multiplied by (n - p) (o and p are natural numbers satisfying 0

公开(公告)号：EP1843333A2

公开(公告)日：2007-10-10

申请号：EP07005295.6

申请日：2007-03-14

申请人： Daewoo Electronics Corporation

发明人： Hak-sun, Kim ,  Pil-Sang, Yoon ,  Eui-Seok, Hwang

IPC分类号： G11B7/0065

CPC分类号： G11B7/0065 ,  G11B7/083 ,  G11B7/0901

摘要： An optical information reproducing apparatus and an optical information reproducing method using the same are provided. The optical information reproducing apparatus includes: a reference beam providing unit which inputs a reference beam to a reproduction recording area to be reproduced and a peripheral recording area around the reproduction recording area on an optical information recording medium, a peripheral beam detecting unit which transmits a reproduction beam reproduced from the reproduction recording area in response to the reference beam and detects a peripheral beam reproduced from the peripheral recording area, a tracking servo unit which analyzes optical information of the detected peripheral beam and controls a tracking position, and a reproduction beam detecting unit which detects the reproduction beam having pass through the peripheral beam detecting unit. Accordingly, it is possible to judge a current tracking state using the peripheral beam and to perform a tracking servo control process using the judgment result at the time of reproducing optical information.

摘要翻译： 提供了一种光学信息再现装置和使用其的光学信息再现方法。 光信息再现装置包括：参考光束提供单元，其将参考光束（R）输入到要再现的再现记录区域和在光学信息记录介质（1）上的再现记录区域周围的外围记录区域; 外围光束检测单元，响应于参考光束发送从再现记录区再现的再现光束，并检测从外围记录区再现的外围光束;跟踪伺服单元，分析光信息的光信息; 检测的外围光束并控制跟踪位置，以及再现光束检测单元（400），其检测已经通过周边光束检测单元的再现光束。 因此，可以使用周边光束来判断当前的跟踪状态，并且使用在再现光学信息时的判断结果来执行跟踪伺服控制处理。