HK1060432A1 - Improved figure of merit in optical recording structures - Google Patents
Improved figure of merit in optical recording structuresInfo
- Publication number
- HK1060432A1 HK1060432A1 HK04101963.7A HK04101963A HK1060432A1 HK 1060432 A1 HK1060432 A1 HK 1060432A1 HK 04101963 A HK04101963 A HK 04101963A HK 1060432 A1 HK1060432 A1 HK 1060432A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- optical recording
- merit
- improved
- recording structures
- sectional shape
- Prior art date
Links
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
- G11B7/24—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
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10502—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed
- G11B11/10528—Shaping of magnetic domains, e.g. form, dimensions
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/1055—Disposition or mounting of transducers relative to record carriers
- G11B11/10576—Disposition or mounting of transducers relative to record carriers with provision for moving the transducers for maintaining alignment or spacing relative to the carrier
- G11B11/10578—Servo format, e.g. prepits, guide tracks, pilot signals
-
- 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
- G11B7/24076—Cross sectional shape in the radial direction of a disc, e.g. asymmetrical cross sectional shape
-
- 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
- G11B7/24085—Pits
-
- 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
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
- G11B7/261—Preparing a master, e.g. exposing photoresist, electroforming
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Manufacturing Optical Record Carriers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2001/027788 WO2003042994A1 (en) | 2001-10-31 | 2001-10-31 | Improved figure of merit in optical recording structures |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1060432A1 true HK1060432A1 (en) | 2004-08-06 |
Family
ID=29731298
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK04101963.7A HK1060432A1 (en) | 2001-10-31 | 2004-03-17 | Improved figure of merit in optical recording structures |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1377969B1 (ja) |
JP (1) | JP3776430B2 (ja) |
CN (1) | CN1582472B (ja) |
AT (1) | ATE451688T1 (ja) |
DE (1) | DE60140768D1 (ja) |
HK (1) | HK1060432A1 (ja) |
WO (1) | WO2003042994A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1347450A3 (en) * | 2002-02-22 | 2007-12-05 | Pioneer Corporation | Information recording method using electron beam, information recording apparatus, and recording medium |
KR101080376B1 (ko) | 2009-04-30 | 2011-11-04 | 광주과학기술원 | 간섭계를 이용한 이미지 생성 시스템 및 방법 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8100098A (nl) * | 1981-01-12 | 1982-08-02 | Philips Nv | Registratiedrager met optisch uitleesbare informatiestruktuur. |
JPS57212627A (en) * | 1981-06-24 | 1982-12-27 | Tdk Corp | Optical recording method |
US4475183A (en) * | 1981-10-26 | 1984-10-02 | Eastman Kodak Company | Optical disk retrieval methods, media and systems employing digital data of high fractional bandwidth |
US4809022A (en) | 1983-06-27 | 1989-02-28 | Optical Disc Corporation | Direct read after write optical storage medium |
US4963901A (en) | 1983-06-27 | 1990-10-16 | Optical Disc Corporation | Direct read after write optical storage medium and information storage system |
JPH01144246A (ja) * | 1987-11-30 | 1989-06-06 | Matsushita Electric Ind Co Ltd | 光記録媒体 |
US5273860A (en) * | 1989-11-24 | 1993-12-28 | Hitachi, Ltd. | Information recording medium |
DE69219481T2 (de) | 1991-10-03 | 1997-12-04 | Del Mar Avionics | Optische matrizenplatte |
JPH05109119A (ja) * | 1991-10-14 | 1993-04-30 | Sony Corp | 光デイスク |
TW325185U (en) * | 1994-03-22 | 1998-01-11 | Mitsubish Chem Corp | Optical disk |
KR20000005288A (ko) * | 1996-04-10 | 2000-01-25 | 사토 도리 | 광기록매체_ |
US5741627A (en) * | 1996-05-15 | 1998-04-21 | Del Mar Avionics | Optical recording medium and method for eliminating berm buildup |
US5799007A (en) * | 1996-06-13 | 1998-08-25 | Samsung Electronics Co., Ltd. | High density compact disc |
US6022604A (en) * | 1998-01-16 | 2000-02-08 | Odme | Optical disk mastering system |
DE60304232T2 (de) * | 2002-01-11 | 2006-12-28 | Fuji Photo Film Co., Ltd., Minami-Ashigara | Optisches Informationsaufzeichnungsmedium |
-
2001
- 2001-10-31 DE DE60140768T patent/DE60140768D1/de not_active Expired - Lifetime
- 2001-10-31 CN CN01823870.XA patent/CN1582472B/zh not_active Expired - Fee Related
- 2001-10-31 WO PCT/US2001/027788 patent/WO2003042994A1/en active Application Filing
- 2001-10-31 JP JP2003544740A patent/JP3776430B2/ja not_active Expired - Fee Related
- 2001-10-31 AT AT01983082T patent/ATE451688T1/de not_active IP Right Cessation
- 2001-10-31 EP EP01983082A patent/EP1377969B1/en not_active Expired - Lifetime
-
2004
- 2004-03-17 HK HK04101963.7A patent/HK1060432A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATE451688T1 (de) | 2009-12-15 |
DE60140768D1 (de) | 2010-01-21 |
WO2003042994A1 (en) | 2003-05-22 |
EP1377969B1 (en) | 2009-12-09 |
CN1582472B (zh) | 2012-07-11 |
JP2005509995A (ja) | 2005-04-14 |
EP1377969A1 (en) | 2004-01-07 |
CN1582472A (zh) | 2005-02-16 |
JP3776430B2 (ja) | 2006-05-17 |
EP1377969A4 (en) | 2007-02-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20131031 |