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1. CN101896974 - Holographic data storage medium and apparatus and method for recording/reproducing holographic data to/from the same

Office Chine
Numéro de la demande 200880120664.4
Date de la demande 22.05.2008
Numéro de publication 101896974
Date de publication 24.11.2010
Numéro de délivrance 101896974
Date de délivrance 20.11.2013
Type de publication B
CIB
G11B 7/242
GPHYSIQUE
11ENREGISTREMENT DE L'INFORMATION
BENREGISTREMENT DE L'INFORMATION BASÉ SUR UN MOUVEMENT RELATIF ENTRE LE SUPPORT D'ENREGISTREMENT ET LE TRANSDUCTEUR
7Enregistrement ou reproduction par des moyens optiques, p.ex. enregistrement utilisant un faisceau thermique de rayonnement optique, reproduction utilisant un faisceau optique à puissance réduite; Supports d'enregistrement correspondants
24Supports d’enregistrement caractérisés par la forme, la structure ou les propriétés physiques, ou par le choix du matériau
241Supports d’enregistrement caractérisés par le choix du matériau
242des couches d'enregistrement
CPC
G03H 1/30
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
HHOLOGRAPHIC PROCESSES OR APPARATUS
1Holographic processes or apparatus using light, infra-red or ultra-violet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
26Processes or apparatus specially adapted to produce multiple ; sub-; holograms or to obtain images from them, e.g. multicolour technique
30discrete holograms only
G11B 7/0065
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation ; by modifying optical properties or the physical structure; , reproducing using an optical beam at lower power ; by sensing optical properties; Record carriers therefor
004Recording, reproducing or erasing methods; Read, write or erase circuits therefor
0065Recording, reproducing or erasing by using optical interference patterns, e.g. holograms
G11B 7/00781
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation ; by modifying optical properties or the physical structure; , reproducing using an optical beam at lower power ; by sensing optical properties; Record carriers therefor
007Arrangement of the information on the record carrier, e.g. form of tracks ; , actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
00772on record carriers storing information in the form of optical interference patterns, e.g. holograms
00781Auxiliary information, e.g. index marks, address marks, pre-pits, gray codes
G11B 7/083
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation ; by modifying optical properties or the physical structure; , reproducing using an optical beam at lower power ; by sensing optical properties; Record carriers therefor
08Disposition or mounting of heads or light sources relatively to record carriers
083relative to record carriers storing information in the form of optical interference patterns, e.g. holograms
G11B 7/08511
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation ; by modifying optical properties or the physical structure; , reproducing using an optical beam at lower power ; by sensing optical properties; Record carriers therefor
08Disposition or mounting of heads or light sources relatively to record carriers
085with provision for moving the light beam into, or out of, its operative position ; or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
08505Methods for track change, selection or preliminary positioning by moving the head
08511with focus pull-in only
G11B 7/1275
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation ; by modifying optical properties or the physical structure; , reproducing using an optical beam at lower power ; by sensing optical properties; Record carriers therefor
12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
125Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
127Lasers; Multiple laser arrays
1275Two or more lasers having different wavelengths
Déposants 三星电子株式会社
Inventeurs 郑文一
郑永民
郑泽成
Mandataires 北京铭硕知识产权代理有限公司 11286
北京铭硕知识产权代理有限公司 11286
Données relatives à la priorité 1020070128753 12.12.2007 KR
Titre
(EN) Holographic data storage medium and apparatus and method for recording/reproducing holographic data to/from the same
(ZH) 全息数据存储介质及记录/再现全息数据的方法和设备
Abrégé
(EN)
Provided are a holographic data storage medium and an apparatus and method for recording/reproducing holographic data using the same. The holographic data storage medium includes: a substrate; a holographic recording layer disposed on the substrate; and a cover layer covering the holographic recording layer. The holographic recording layer includes: a data recording region including a plurality of data layers to which data is recorded, the data recording region in which interference fringes due to first and second beams are formed in different data layers in a depthwise direction; and a layer discrimination region for providing discrimination between the data layers.

(ZH)

提供了一种全息数据存储介质以及利用其记录/再现全息数据方法和设备。全息数据存储介质包括:基底;全息记录层,设置在基底上;覆盖层,覆盖全息记录层。全息记录层包括:数据记录区,包括记录数据的多个数据层,在数据记录区中,由第一光束和第二光束导致的干涉条纹形成在沿深度方向的不同数据层中;层区分区,用于提供数据层之间的区分。

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