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1. WO2009075424 - SUPPORT DE STOCKAGE DE DONNÉES HOLOGRAPHIQUES ET APPAREIL ET PROCÉDÉ D'ENREGISTREMENT/DE REPRODUCTION DE DONNÉES HOLOGRAPHIQUES VERS/DEPUIS LEDIT SUPPORT

Numéro de publication WO/2009/075424
Date de publication 18.06.2009
N° de la demande internationale PCT/KR2008/002845
Date du dépôt international 22.05.2008
CIB
G11B 7/242 2006.01
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 2007/0013
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;
0003Recording, reproducing or erasing systems characterised by the structure or type of the carrier
0009for carriers having data stored in three dimensions, e.g. volume storage
0013for carriers having multiple discrete layers
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
Déposants
  • SAMSUNG ELECTRONICS CO., LTD. [KR]/[KR]
Inventeurs
  • JUNG, Moon-Il
  • CHEONG, Young-Min
  • JEONG, Taek-Seong
Mandataires
  • Y.P.LEE, MOCK & PARTNERS
Données relatives à la priorité
10-2007-012875312.12.2007KR
Langue de publication anglais (EN)
Langue de dépôt anglais (EN)
États désignés
Titre
(EN) HOLOGRAPHIC DATA STORAGE MEDIUM AND APPARATUS AND METHOD FOR RECORDING/REPRODUCING HOLOGRAPHIC DATA TO/FROM THE SAME
(FR) SUPPORT DE STOCKAGE DE DONNÉES HOLOGRAPHIQUES ET APPAREIL ET PROCÉDÉ D'ENREGISTREMENT/DE REPRODUCTION DE DONNÉES HOLOGRAPHIQUES VERS/DEPUIS LEDIT SUPPORT
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.
(FR)
La présente invention concerne un support de stockage de données holographiques et un appareil et un procédé d'enregistrement/de reproduction de données holographiques utilisant un tel support. Le support de stockage de données holographiques comporte : un substrat ; une couche d'enregistrement holographique disposée sur le substrat ; et une couche de couverture recouvrant la couche d'enregistrement holographique. La couche d'enregistrement holographique comporte : une zone d'enregistrement de données comprenant une pluralité de couches de données sur lesquelles les données sont enregistrées, la zone d'enregistrement de données dans laquelle des franges d'interférence dues aux premier et second faisceaux sont formées dans différentes couches de données dans une direction de profondeur ; et une zone de discrimination de couches pour fournir une discrimination entre les couches de données.
Également publié en tant que
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