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1. EP3007172 - OPTICAL INFORMATION RECORDING MEDIUM, REPRODUCTION METHOD, AND REPRODUCTION DEVICE

官庁
欧州特許庁(EPO)
出願番号 14808270
出願日 08.04.2014
公開番号 3007172
公開日 13.04.2016
公報種別 A4
IPC
G11B 7/007
G物理学
11情報記憶
B記録担体と変換器との間の相対運動に基づいた情報記録
7光学的手段による記録または再生,例.光ビームの照射による記録,低パワー光ビームを用いる再生;そのための記録担体
007記録担体上の情報の配列,例.トラックの形状
G11B 7/24
G物理学
11情報記憶
B記録担体と変換器との間の相対運動に基づいた情報記録
7光学的手段による記録または再生,例.光ビームの照射による記録,低パワー光ビームを用いる再生;そのための記録担体
24形状、構造または物性によって、または材料の選定によって特徴づけられる記録担体
CPC
G11B 7/24065
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
24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
2403Layers; Shape, structure or physical properties thereof
24065Layers assisting in recording or reproduction below the optical diffraction limit, e.g. non-linear optical layers or structures
G11B 7/0079
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
0079Zoned data area, e.g. having different data structures or formats for the user data within data layer, Zone Constant Linear Velocity [ZCLV], Zone Constant Angular Velocity [ZCAV], carriers with RAM and ROM areas
G11B 7/24085
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
24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
2407Tracks or pits; Shape, structure or physical properties thereof
24085Pits
G11B 7/005
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
005Reproducing
G11B 7/007
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
G11B 7/00745
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
00745Sectoring or header formats within a track
出願人 SHARP KK
MEMORY TECH HOLDINGS INC
発明者 NAKA TAKAYUKI
YAMADA HIROHISA
YAMAMOTO MASAKI
TAJIMA HIDEHARU
KONISHI MASAHITO
指定国 (国コード)
優先権情報 2013120958 07.06.2013 JP
発明の名称
(DE) OPTISCHES INFORMATIONSAUFZEICHNUNGSMEDIUM, WIEDERGABEVERFAHREN UND WIEDERGABEVORRICHTUNG
(EN) OPTICAL INFORMATION RECORDING MEDIUM, REPRODUCTION METHOD, AND REPRODUCTION DEVICE
(FR) SUPPORT D'ENREGISTREMENT D'INFORMATIONS OPTIQUES, PROCÉDÉ DE REPRODUCTION ET DISPOSITIF DE REPRODUCTION
要約
(EN) In a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit (P1max) or a longest space (S1max) in a first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit (P2max) or a longest space (S2max) in the second pit row is defined as a second reflectance, the first pit row is formed such that the first reflectance becomes substantially identical with the second reflectance.
(FR) Selon la présente invention, si un premier taux de réflexion est défini en tant que taux de réflexion calculé à partir de la quantité de lumière réfléchie obtenue à partir du creux le plus long (P1max) ou de l'espace le plus long (S1max) dans une première rangée de creux et un second taux de réflexion est défini en tant que taux de réflexion calculé à partir de la quantité de lumière réfléchie obtenue à partir du creux le plus long (P2max) ou de l'espace le plus long (S2max) dans une seconde rangée de creux, la première rangée de creux est conçue de sorte que le premier taux de réflexion soit sensiblement le même que le second taux de réflexion.