SG92675A1 - Multi-layered optical disc - Google Patents
Multi-layered optical discInfo
- Publication number
- SG92675A1 SG92675A1 SG200000783A SG200000783A SG92675A1 SG 92675 A1 SG92675 A1 SG 92675A1 SG 200000783 A SG200000783 A SG 200000783A SG 200000783 A SG200000783 A SG 200000783A SG 92675 A1 SG92675 A1 SG 92675A1
- Authority
- SG
- Singapore
- Prior art keywords
- optical disc
- layered optical
- layered
- disc
- optical
- 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
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
-
- 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
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
-
- 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
-
- 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
- G11B2007/24304—Metals or metalloids group 2 or 12 elements (e.g. Be, Ca, Mg, Zn, Cd)
-
- 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
- G11B2007/24306—Metals or metalloids transition metal elements of groups 3-10
-
- 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
- G11B2007/2431—Metals or metalloids group 13 elements (B, Al, Ga, In)
-
- 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
- G11B2007/24312—Metals or metalloids group 14 elements (e.g. Si, Ge, Sn)
-
- 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)
-
- 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
- G11B2007/24316—Metals or metalloids group 16 elements (i.e. chalcogenides, Se, Te)
-
- 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
- G11B2007/24318—Non-metallic elements
- G11B2007/2432—Oxygen
-
- 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
- G11B2007/24318—Non-metallic elements
- G11B2007/24322—Nitrogen
-
- 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
- G11B2007/24318—Non-metallic elements
- G11B2007/24324—Sulfur
-
- 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
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/258—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers
- G11B7/2585—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers based on aluminium
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Optical Recording Or Reproduction (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11035086A JP2000235732A (ja) | 1999-02-12 | 1999-02-12 | 多層光ディスク |
Publications (1)
Publication Number | Publication Date |
---|---|
SG92675A1 true SG92675A1 (en) | 2002-11-19 |
Family
ID=12432166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG200000783A SG92675A1 (en) | 1999-02-12 | 2000-02-10 | Multi-layered optical disc |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1028421A3 (ko) |
JP (1) | JP2000235732A (ko) |
KR (1) | KR100770078B1 (ko) |
CN (1) | CN1172303C (ko) |
HK (1) | HK1033381A1 (ko) |
ID (1) | ID24789A (ko) |
SG (1) | SG92675A1 (ko) |
TW (1) | TW473711B (ko) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1065663A3 (en) * | 1999-06-30 | 2002-02-06 | Sony Corporation | Optical recording medium |
US7065035B1 (en) | 1999-10-25 | 2006-06-20 | Matsushita Electric Industrial Co., Ltd. | Optical multilayer disk, multiwavelength light source, and optical system using them |
JP4680465B2 (ja) | 1999-12-21 | 2011-05-11 | パナソニック株式会社 | 光学情報記録媒体とその記録再生方法、およびこれを用いた光学情報の記録再生システム |
JP2001319370A (ja) * | 2000-05-11 | 2001-11-16 | Nec Corp | 相変化光ディスク |
JP2002230828A (ja) * | 2001-01-31 | 2002-08-16 | Pioneer Electronic Corp | 情報記録媒体 |
EP1251499A3 (en) * | 2001-03-28 | 2006-10-25 | TDK Corporation | Readout method and apparatus for optical information medium |
JP4814476B2 (ja) | 2001-04-20 | 2011-11-16 | Tdk株式会社 | 光情報媒体の再生方法 |
JP2002352469A (ja) * | 2001-05-25 | 2002-12-06 | Pioneer Electronic Corp | 多層情報記録媒体及び情報記録再生装置 |
EP1513139B1 (en) | 2001-10-12 | 2007-09-05 | Matsushita Electric Industrial Co., Ltd. | Method to determine a change in the transmittance of an optical information recording medium |
EP1357551A3 (en) * | 2002-04-26 | 2004-12-22 | TDK Corporation | Optical recording medium and method for optically recording data in the same |
CN1220195C (zh) | 2002-04-30 | 2005-09-21 | Tdk股份有限公司 | 光学记录媒体以及在其上光学记录数据的方法 |
JP4106417B2 (ja) * | 2002-05-16 | 2008-06-25 | 三星電子株式会社 | 高融点の記録層を有する記録媒体及びその記録媒体の情報記録方法、及びその記録媒体から情報を再生する情報再生装置及び情報再生方法 |
US7231649B2 (en) | 2002-05-31 | 2007-06-12 | Tdk Corporation | Optical recording medium and method for optically recording data in the same |
AU2007200467B2 (en) * | 2002-06-05 | 2009-07-30 | Lg Electronics Inc. | High-density dual-layer optical disc |
JP4059714B2 (ja) | 2002-07-04 | 2008-03-12 | Tdk株式会社 | 光記録媒体 |
EP1563493A1 (en) * | 2002-11-06 | 2005-08-17 | Koninklijke Philips Electronics N.V. | Multi-stack optical data storage medium and use of such medium |
US7781146B2 (en) | 2002-11-22 | 2010-08-24 | Tdk Corporation | Optical recording medium |
JP2005044438A (ja) | 2003-07-22 | 2005-02-17 | Tdk Corp | 光記録ディスク |
JP2005044395A (ja) | 2003-07-23 | 2005-02-17 | Tdk Corp | 光情報記録媒体 |
JP2005071402A (ja) | 2003-08-25 | 2005-03-17 | Tdk Corp | 光情報記録媒体 |
JP4342930B2 (ja) | 2003-12-25 | 2009-10-14 | 株式会社東芝 | 光ディスク装置及びその制御方法及び記録媒体 |
WO2005124759A1 (en) * | 2004-06-21 | 2005-12-29 | D.M.S. - Dynamic Media Solutions Ltd. | Optical implants for preventing replication of original media |
JP4437727B2 (ja) * | 2004-09-09 | 2010-03-24 | 株式会社リコー | 光記録媒体 |
JP2006269040A (ja) | 2005-02-28 | 2006-10-05 | Sharp Corp | 光情報記録媒体、及び光情報記録媒体再生装置 |
JP2010003357A (ja) | 2008-06-20 | 2010-01-07 | Hitachi Ltd | 多層光ディスク、多層光ディスク記録装置および多層光ディスク再生装置 |
CN104157298B (zh) * | 2014-07-16 | 2017-07-14 | 中国科学院上海光学精密机械研究所 | 荧光读出的可擦重写相变光盘 |
CN104868053B (zh) * | 2015-04-30 | 2017-08-25 | 宁波大学 | 一种用于相变存储器的Ge‑Sb‑Te‑Se薄膜材料及其制备方法 |
CN106611814B (zh) * | 2015-10-23 | 2020-05-05 | 中国科学院上海微系统与信息技术研究所 | 用于相变存储器的相变材料及其制备方法 |
CN107768518B (zh) * | 2017-08-31 | 2019-11-12 | 江苏理工学院 | 一种用于相变存储器的Al/Ge10Sb90类超晶格相变薄膜材料及制备方法 |
CN108987567A (zh) * | 2018-06-05 | 2018-12-11 | 深圳大学 | 相变超晶格薄膜、相变存储器单元及其制备方法 |
CN109326308A (zh) * | 2018-09-17 | 2019-02-12 | 中国科学院上海光学精密机械研究所 | 多层三维光信息存储体的制造方法及读取方法 |
CN110148668B (zh) * | 2019-05-31 | 2022-05-17 | 中国科学院上海微系统与信息技术研究所 | Al-Sc-Sb-Te相变材料、相变存储器单元及其制备方法 |
CN111244271B (zh) * | 2020-01-19 | 2021-12-21 | 中国科学院上海微系统与信息技术研究所 | 一种相变材料、相变存储器单元及其制备方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5521901A (en) * | 1994-05-20 | 1996-05-28 | Nec Corporation | Re-writable phase change type optical disk with suppressed recording mark distortion |
JPH1097735A (ja) * | 1996-09-20 | 1998-04-14 | Nec Corp | 光学的情報記録媒体 |
JPH10134416A (ja) * | 1996-10-24 | 1998-05-22 | Sharp Corp | 相変化型光記録媒体 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06282876A (ja) * | 1993-03-29 | 1994-10-07 | Matsushita Electric Ind Co Ltd | 光記録媒体 |
JPH0963120A (ja) * | 1995-08-25 | 1997-03-07 | Sony Corp | 光学記録媒体 |
EP0800699A1 (en) * | 1995-10-13 | 1997-10-15 | Koninklijke Philips Electronics N.V. | Optical registration medium with dual information layer |
JPH09198709A (ja) * | 1996-01-23 | 1997-07-31 | Sony Corp | 多層光ディスク及び記録再生装置 |
TW414892B (en) * | 1996-05-28 | 2000-12-11 | Ibm | Optical data storage system with multiple rewriteable phase-change recording layers |
JP3255051B2 (ja) * | 1996-12-05 | 2002-02-12 | 三菱化学株式会社 | 光学的情報記録用媒体 |
DE69733642T2 (de) * | 1996-12-24 | 2006-05-18 | Koninklijke Philips Electronics N.V. | Optisches aufzeichnungsmedium mit phasenwechsel-aufzeichnungsschicht |
-
1999
- 1999-02-12 JP JP11035086A patent/JP2000235732A/ja active Pending
-
2000
- 2000-01-31 TW TW089101661A patent/TW473711B/zh not_active IP Right Cessation
- 2000-02-04 CN CNB001082973A patent/CN1172303C/zh not_active Expired - Lifetime
- 2000-02-10 SG SG200000783A patent/SG92675A1/en unknown
- 2000-02-10 ID IDP20000113A patent/ID24789A/id unknown
- 2000-02-10 EP EP00102765A patent/EP1028421A3/en not_active Withdrawn
- 2000-02-11 KR KR1020000006365A patent/KR100770078B1/ko not_active IP Right Cessation
-
2001
- 2001-03-23 HK HK01102136A patent/HK1033381A1/xx not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5521901A (en) * | 1994-05-20 | 1996-05-28 | Nec Corporation | Re-writable phase change type optical disk with suppressed recording mark distortion |
JPH1097735A (ja) * | 1996-09-20 | 1998-04-14 | Nec Corp | 光学的情報記録媒体 |
JPH10134416A (ja) * | 1996-10-24 | 1998-05-22 | Sharp Corp | 相変化型光記録媒体 |
Also Published As
Publication number | Publication date |
---|---|
TW473711B (en) | 2002-01-21 |
KR100770078B1 (ko) | 2007-10-24 |
CN1268743A (zh) | 2000-10-04 |
KR20000058011A (ko) | 2000-09-25 |
HK1033381A1 (en) | 2001-08-24 |
JP2000235732A (ja) | 2000-08-29 |
CN1172303C (zh) | 2004-10-20 |
ID24789A (id) | 2000-08-16 |
EP1028421A2 (en) | 2000-08-16 |
EP1028421A3 (en) | 2000-11-29 |
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