JP4995281B2 - 適合性のある光学記録媒体 - Google Patents
適合性のある光学記録媒体 Download PDFInfo
- Publication number
- JP4995281B2 JP4995281B2 JP2009531805A JP2009531805A JP4995281B2 JP 4995281 B2 JP4995281 B2 JP 4995281B2 JP 2009531805 A JP2009531805 A JP 2009531805A JP 2009531805 A JP2009531805 A JP 2009531805A JP 4995281 B2 JP4995281 B2 JP 4995281B2
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- JP
- Japan
- Prior art keywords
- wavelength
- recording medium
- optical recording
- numerical aperture
- optical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording 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
- G11B7/007—Arrangement 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
- G11B7/24073—Tracks
- G11B7/24079—Width or depth
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1372—Lenses
- G11B7/1374—Objective lenses
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B2007/24302—Metals or metalloids
- G11B2007/24308—Metals or metalloids transition metal elements of group 11 (Cu, Ag, Au)
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B2007/24302—Metals or metalloids
- G11B2007/24314—Metals or metalloids group 15 elements (e.g. Sb, Bi)
Description
この膨大なストックの必要性を減少させるために、オンデマンドの製造またはネットワークを経由した流通についてのいくらかの解決策が提案されてきた。光学記録媒体、典型的にはDVD(digital versatile disk)、は、顧客によってタイトルがリクエストされたらすぐに記録(レコーディング)される。記録は、ストアにある特別なレコーダを用いて、キオスク(kiosk)タイプのレコーディング端末を用いて、またはネットワークに接続された特別な顧客レコーダによって実行される。これらの特別なレコーダは、DVDがCSS暗号化されたDVD Video(ROM)diskの体裁を備えた態様で記録可能なDVD、すなわち特別にファイナライズされた記録可能なDVD、にデータを書き込むことを可能にする。記録のために、光学記録媒体は、光学記録媒体に関連した光学ピックアップユニットをガイドするグルーブ構造を備えている。
−第1の波長において、プッシュ−プル信号は強力であるが、トラッキングのために必要であるからである。
−第2の波長において、プッシュ−プル信号はほぼゼロであることで、レコーダピックアップとの不適合性を避ける。トラッキングはDPD(differential phase detection)、またはグルーブ構造を要求しない他のトラッキング方法で実行される。第1の波長における大きな回折効率から第2の波長におけるほぼゼロの回折効率への遷移を可能とするために、第1の波長と第2の波長との間の差異は、少なくとも50nmが好ましい。本発明に従ったフォーマットは、記録された媒体が読み出し専用媒体と同様であり、ほとんどのプレイヤおよびレコーダと適合性があるという利点がある。
Claims (7)
- グルーブ構造を有する記録層を備えた光学記録媒体であって、
前記記録層は、第1の波長で記録することに感応性があり、第2の波長で読み出されることに感応性があり、第1の波長において、グルーブ構造は、プッシュ−プル信号を生成するのに十分大きい1次回折光への回折効率を有し、第2の波長において、ほぼゼロの1次回折光への回折効率を有することを特徴とする光学記録媒体。 - 前記第1の波長と前記第2の波長との間の差は、50nmより大きいことを特徴とする請求項1に記載の光学記録媒体。
- 第1の波長は約405nmであり、第2の波長は約650nmであることを特徴とする請求項1または2に記載の光学記録媒体。
- 前記グルーブ構造は、120nm以下のグルーブ幅と、約40nmのグルーブ深度とを有することを特徴とする請求項1から3のいずれかに記載の光学記録媒体。
- 請求項1または2に記載された光学記録媒体と、該光学記録媒体上に記録するための光学ピックアップとを含むシステムであって、
前記光学記録媒体は、第2の波長において第2の開口数で読み出されるよう意図され、前記光学ピックアップは、第1の波長において記録用光ビームを生成する光源を有し、記録用光ビームの開口数は、第2の開口数に、(第1の波長)/(第2の波長)を掛け合わすことによって与えられることを特徴とするシステム。 - 第1の波長および第2の波長の間の差は50nmより大きいことを特徴とする請求項5に記載のシステム。
- 第1の波長は405nmであり、第2の波長は約650nmであり、記録用光ビームの開口数は約0.374であることを特徴とする請求項5または6に記載のシステム。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06122015.8 | 2006-10-10 | ||
EP06122015 | 2006-10-10 | ||
EP06301252A EP1933313A1 (en) | 2006-12-14 | 2006-12-14 | Compatible optical recording medium |
EP06301252.0 | 2006-12-14 | ||
PCT/EP2007/060106 WO2008043661A1 (en) | 2006-10-10 | 2007-09-24 | Compatible optical recording medium |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2010506342A JP2010506342A (ja) | 2010-02-25 |
JP2010506342A5 JP2010506342A5 (ja) | 2010-11-11 |
JP4995281B2 true JP4995281B2 (ja) | 2012-08-08 |
Family
ID=38593660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009531805A Expired - Fee Related JP4995281B2 (ja) | 2006-10-10 | 2007-09-24 | 適合性のある光学記録媒体 |
Country Status (11)
Country | Link |
---|---|
US (1) | US8213289B2 (ja) |
EP (1) | EP2074618B1 (ja) |
JP (1) | JP4995281B2 (ja) |
KR (1) | KR101364039B1 (ja) |
AT (1) | ATE476736T1 (ja) |
BR (1) | BRPI0717433A2 (ja) |
DE (1) | DE602007008274D1 (ja) |
MX (1) | MX2009003297A (ja) |
RU (1) | RU2437174C2 (ja) |
TW (1) | TWI427631B (ja) |
WO (1) | WO2008043661A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7804752B2 (en) * | 2007-02-05 | 2010-09-28 | Hewlett-Packard Development Company, L.P. | Focal offset recording system and method |
US11806577B1 (en) | 2023-02-17 | 2023-11-07 | Mad Dogg Athletics, Inc. | Programmed exercise bicycle with computer aided guidance |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4466087A (en) * | 1981-01-08 | 1984-08-14 | Xerox Corporation | Optical memory system for a reading/writing, verifying and tracking module |
NL8101932A (nl) * | 1981-04-21 | 1982-11-16 | Philips Nv | Inrichting voor het inschrijven en uitlezen van informatiesporen in een optische registratiedrager. |
US4771415A (en) * | 1985-02-27 | 1988-09-13 | Brother Kogyo Kabushiki Kaisha | Optical data storage and readout apparatus and head, using optical fibers between stationary and movable units |
FR2613866B1 (fr) * | 1987-04-07 | 1994-01-14 | Mitsubishi Denki Kk | Appareil d'enregistrement et de reproduction optique d'information |
DE3885992T2 (de) * | 1987-09-22 | 1994-06-09 | Hitachi Maxell | Optisches Informationsaufzeichnungs-/wiedergabegerät. |
NL8900362A (nl) * | 1989-02-15 | 1990-09-03 | Philips Nv | Werkwijze en inrichting voor het inschrijven en uitlezen van een magneto-optische registratiedrager. |
EP0558249B1 (en) * | 1992-02-28 | 1998-08-26 | Canon Kabushiki Kaisha | Optical information recording/reproducing apparatus |
US5680386A (en) * | 1993-12-23 | 1997-10-21 | Thomson-Csf | Optical method and system for writing/reading information on a recording medium |
JPH0887770A (ja) * | 1994-03-18 | 1996-04-02 | Sanyo Electric Co Ltd | 光学式情報再生装置及び方法 |
JPH09293286A (ja) * | 1996-02-22 | 1997-11-11 | Sanyo Electric Co Ltd | 光磁気記録媒体及び情報記録再生装置 |
JPH1021550A (ja) | 1996-07-03 | 1998-01-23 | Seiko Epson Corp | 光記録再生方法、光学ヘッドおよび光記録装置 |
JP3485040B2 (ja) | 1998-09-09 | 2004-01-13 | 三菱化学株式会社 | 光学的情報記録用媒体及び光記録方法 |
US6545971B1 (en) * | 1999-01-27 | 2003-04-08 | Kabushiki Kaisha Toshiba | Information recording/reproducing system for recording/reproducing information in three-dimensional recording medium of a light passing-through type |
US6373809B1 (en) * | 1999-09-28 | 2002-04-16 | Xerox Corporation | Multi-channel optical head for optical recording and reading optical storage data |
WO2001035398A1 (en) * | 1999-11-10 | 2001-05-17 | Georgetown University | Near-field crystal optical memory |
JP2002150614A (ja) | 2000-11-10 | 2002-05-24 | Pioneer Electronic Corp | 光ディスク |
TWI227478B (en) * | 2001-04-26 | 2005-02-01 | Fuji Photo Film Co Ltd | Optical information recording medium |
JP2005524192A (ja) * | 2002-05-01 | 2005-08-11 | エルジー エレクトロニクス インコーポレーテッド | 高密度再生専用光ディスクとそれによる光ディスク装置及び方法 |
KR100499586B1 (ko) * | 2003-05-20 | 2005-07-07 | 엘지전자 주식회사 | 고밀도 광디스크의 복사 방지 정보 관리방법 및 그에 따른고밀도 광디스크와 복사 방지 정보 검출장치 |
EP1656664A2 (en) | 2003-08-13 | 2006-05-17 | Koninklijke Philips Electronics N.V. | Recordable optical record carrier for multilevel and method for writing thereon |
JP4382646B2 (ja) * | 2004-05-17 | 2009-12-16 | 株式会社リコー | 光記録媒体とその製造方法 |
-
2007
- 2007-09-14 TW TW096134336A patent/TWI427631B/zh not_active IP Right Cessation
- 2007-09-24 MX MX2009003297A patent/MX2009003297A/es active IP Right Grant
- 2007-09-24 EP EP07820512A patent/EP2074618B1/en not_active Not-in-force
- 2007-09-24 US US12/311,671 patent/US8213289B2/en not_active Expired - Fee Related
- 2007-09-24 JP JP2009531805A patent/JP4995281B2/ja not_active Expired - Fee Related
- 2007-09-24 WO PCT/EP2007/060106 patent/WO2008043661A1/en active Application Filing
- 2007-09-24 BR BRPI0717433-0A patent/BRPI0717433A2/pt not_active IP Right Cessation
- 2007-09-24 AT AT07820512T patent/ATE476736T1/de not_active IP Right Cessation
- 2007-09-24 RU RU2009117617/28A patent/RU2437174C2/ru not_active IP Right Cessation
- 2007-09-24 KR KR1020097006139A patent/KR101364039B1/ko not_active IP Right Cessation
- 2007-09-24 DE DE602007008274T patent/DE602007008274D1/de active Active
Also Published As
Publication number | Publication date |
---|---|
TW200818186A (en) | 2008-04-16 |
KR101364039B1 (ko) | 2014-02-17 |
ATE476736T1 (de) | 2010-08-15 |
EP2074618A1 (en) | 2009-07-01 |
MX2009003297A (es) | 2009-04-14 |
KR20090061015A (ko) | 2009-06-15 |
DE602007008274D1 (de) | 2010-09-16 |
US8213289B2 (en) | 2012-07-03 |
TWI427631B (zh) | 2014-02-21 |
EP2074618B1 (en) | 2010-08-04 |
RU2009117617A (ru) | 2010-11-20 |
RU2437174C2 (ru) | 2011-12-20 |
BRPI0717433A2 (pt) | 2013-12-10 |
US20100002559A1 (en) | 2010-01-07 |
JP2010506342A (ja) | 2010-02-25 |
WO2008043661A1 (en) | 2008-04-17 |
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