CA2249403C - Dispositif et procedes de creation et d'utilisation d'un support d'enregistrement optique comportant des puits a profondeurs variables - Google Patents
Dispositif et procedes de creation et d'utilisation d'un support d'enregistrement optique comportant des puits a profondeurs variables Download PDFInfo
- Publication number
- CA2249403C CA2249403C CA002249403A CA2249403A CA2249403C CA 2249403 C CA2249403 C CA 2249403C CA 002249403 A CA002249403 A CA 002249403A CA 2249403 A CA2249403 A CA 2249403A CA 2249403 C CA2249403 C CA 2249403C
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- transfer function
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- optically detected
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Classifications
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/14—Digital recording or reproducing using self-clocking codes
- G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/14—Digital recording or reproducing using self-clocking codes
- G11B20/1496—Digital recording or reproducing using self-clocking codes characterised by the use of more than three levels
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
- G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
-
- 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
- G11B7/005—Reproducing
- G11B7/0052—Reproducing involving reflectivity, absorption or colour changes
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Optical Recording Or Reproduction (AREA)
- Manufacturing Optical Record Carriers (AREA)
Abstract
Dispositif et procédé de création d'un disque matrice optique numérique possédant un substrat (300) recouvert d'un revêtement de résine photosensible (320). Ce procédé consiste à irradier la surface du revêtement (320) au moyen d'un faisceau laser (310) au niveau d'une multiplicité d'emplacements de puits au-dessus du substrat (300), ce qui amène le matériau photosensible (320) à réagir avec le rayonnement laser (310) de manière à créer au moins trois niveaux discrets différents au niveau de la multiplicité d'emplacements de puits par rapport à la surface du substrat (300), dans la mesure où le dosage du rayonnement appliqué est calculé pour réagir avec le matériau photosensible à une profondeur équivalente aux niveaux discrets. La résine photosensible exposée est ensuite développée afin de réaliser les puits possédant les différents niveaux discrets. Un autre procédé permet d'effectuer l'uniformisation et la régularisation des interférences entre symboles entre les puits contigus.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US62019696A | 1996-03-22 | 1996-03-22 | |
| US08/620,196 | 1996-03-22 | ||
| PCT/US1997/004941 WO1997035304A1 (fr) | 1996-03-22 | 1997-03-24 | Dispositif et procedes de creation et d'utilisation d'un support d'enregistrement optique comportant des puits a profondeurs variables |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2249403A1 CA2249403A1 (fr) | 1997-09-25 |
| CA2249403C true CA2249403C (fr) | 2001-01-09 |
Family
ID=24484980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002249403A Expired - Fee Related CA2249403C (fr) | 1996-03-22 | 1997-03-24 | Dispositif et procedes de creation et d'utilisation d'un support d'enregistrement optique comportant des puits a profondeurs variables |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0888612A4 (fr) |
| AU (1) | AU707392B2 (fr) |
| CA (1) | CA2249403C (fr) |
| WO (1) | WO1997035304A1 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000057417A1 (fr) | 1999-03-23 | 2000-09-28 | Koninklijke Philips Electronics N.V. | Methode de decodage d'un train de bits de canal d'un signal en rapport avec un signal de canal binaire dans un train de bits de source d'un signal en rapport avec un signal de source binaire |
| KR100425659B1 (ko) * | 2000-03-06 | 2004-04-03 | 샤프 가부시키가이샤 | 깊이가 다른 피트가 형성된 광 디스크, 그 광 디스크를재생하는 광 디스크 재생 장치, 및 그 광 디스크의 트랙킹방법 |
| KR100694036B1 (ko) * | 2000-06-01 | 2007-03-12 | 삼성전자주식회사 | 그루브와 피트의 깊이가 다른 디스크 및 그 제조방법 |
| US7680024B2 (en) | 2005-03-08 | 2010-03-16 | Shanghai Xiangzhang Electronics Co., Ltd. | Multilevel read-only optical disk and method for producing the same |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5182601A (fr) * | 1975-01-17 | 1976-07-20 | Sony Corp | |
| FR2481501B1 (fr) * | 1980-04-25 | 1985-09-13 | Philips Nv | Porteur d'enregistrement comportant une structure d'information lisible par voie optique et dispositif pour la lecture d'un tel porteur d'enregistrement |
| NL8100098A (nl) * | 1981-01-12 | 1982-08-02 | Philips Nv | Registratiedrager met optisch uitleesbare informatiestruktuur. |
| US4629668A (en) * | 1985-03-12 | 1986-12-16 | Quixote Corporation | Optically read recording medium and method for making same |
| JPH0298848A (ja) * | 1988-10-04 | 1990-04-11 | Fuji Photo Film Co Ltd | 情報記録媒体の製造方法 |
| EP0375342B1 (fr) * | 1988-12-21 | 1995-02-15 | Matsushita Electric Industrial Co., Ltd. | Appareil pour l'enregistrement/la reproduction de données sur un disque pour l'enregistrement |
| DE69020624T2 (de) * | 1989-04-21 | 1995-12-21 | Nippon Electric Co | Signalwiedergabegerät für optische Aufzeichnungs- und Wiedergabeapparatur und Methode für dasselbe. |
| JPH0785336B2 (ja) * | 1989-05-29 | 1995-09-13 | パイオニア株式会社 | 記録情報の読取り装置 |
| JPH03141031A (ja) * | 1989-10-26 | 1991-06-17 | Brother Ind Ltd | 光記録媒体およびその読取り装置 |
| JP2767960B2 (ja) * | 1990-02-28 | 1998-06-25 | 松下電器産業株式会社 | 記録媒体の検査方法および検査装置ならびに記録再生装置の検査方法 |
| JP3086077B2 (ja) * | 1991-11-19 | 2000-09-11 | パイオニア株式会社 | 光ディスクとその記録信号再生装置 |
| JPH05325406A (ja) * | 1992-05-19 | 1993-12-10 | Hitachi Ltd | 情報信号の記録再生装置 |
| US5586100A (en) * | 1992-10-13 | 1996-12-17 | Literal Corporation | Transversal filter and method for cancelling intersymbol interference |
| JPH06150324A (ja) * | 1992-11-05 | 1994-05-31 | Pioneer Electron Corp | 光学式記録媒体の信号記録再生方法、光学式記録媒体およびその記録信号再生装置 |
| JPH0757265A (ja) * | 1993-08-06 | 1995-03-03 | Nippon Telegr & Teleph Corp <Ntt> | 光ディスク記録方法 |
| US5488591A (en) * | 1993-12-24 | 1996-01-30 | Seiko Epson Corporation | Improved magneto-optical recording apparatus for digital signal information |
| KR100234451B1 (ko) * | 1994-05-18 | 2000-01-15 | 모리시타 요이찌 | 신호 기록 및 재생 장치 |
| JPH07320269A (ja) * | 1994-05-23 | 1995-12-08 | Pioneer Electron Corp | クロストーク除去装置 |
| JPH08194906A (ja) * | 1995-01-20 | 1996-07-30 | Fujitsu Ltd | ディスク装置 |
-
1997
- 1997-03-24 CA CA002249403A patent/CA2249403C/fr not_active Expired - Fee Related
- 1997-03-24 EP EP97917035A patent/EP0888612A4/fr not_active Withdrawn
- 1997-03-24 AU AU25493/97A patent/AU707392B2/en not_active Ceased
- 1997-03-24 WO PCT/US1997/004941 patent/WO1997035304A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP0888612A4 (fr) | 1999-12-29 |
| AU2549397A (en) | 1997-10-10 |
| AU707392B2 (en) | 1999-07-08 |
| EP0888612A1 (fr) | 1999-01-07 |
| CA2249403A1 (fr) | 1997-09-25 |
| WO1997035304A1 (fr) | 1997-09-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20160324 |