FR2494476A1 - Dispositif pour l'enregistrement d'information sur un porteur d'information en forme de disque explorable par voie optique - Google Patents
Dispositif pour l'enregistrement d'information sur un porteur d'information en forme de disque explorable par voie optique Download PDFInfo
- Publication number
- FR2494476A1 FR2494476A1 FR8121561A FR8121561A FR2494476A1 FR 2494476 A1 FR2494476 A1 FR 2494476A1 FR 8121561 A FR8121561 A FR 8121561A FR 8121561 A FR8121561 A FR 8121561A FR 2494476 A1 FR2494476 A1 FR 2494476A1
- Authority
- FR
- France
- Prior art keywords
- information
- signal
- track
- phase
- modulation
- 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.)
- Pending
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
- G11B7/24082—Meandering
-
- 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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0948—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for detection and avoidance or compensation of imperfections on the carrier, e.g. dust, scratches, dropouts
-
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL8006306A NL8006306A (nl) | 1980-11-19 | 1980-11-19 | Schijfvormige, optische uitleesbare registratiedrager als opslagmedium voor datainformatie, inrichting voor het vervaardigen van zo'n registratiedrager en inrichting voor het optekenen van datainformatie in zo'n registratiedrager. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2494476A1 true FR2494476A1 (fr) | 1982-05-21 |
Family
ID=19836204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8121561A Pending FR2494476A1 (fr) | 1980-11-19 | 1981-11-18 | Dispositif pour l'enregistrement d'information sur un porteur d'information en forme de disque explorable par voie optique |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS57113426A (es) |
| DE (1) | DE3145128A1 (es) |
| ES (1) | ES507205A0 (es) |
| FR (1) | FR2494476A1 (es) |
| GB (1) | GB2087628B (es) |
| IT (1) | IT1194113B (es) |
| NL (1) | NL8006306A (es) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8103117A (nl) * | 1981-06-29 | 1983-01-17 | Philips Nv | Inrichting voor het beschrijven en/of uitlezen van een registratiedrager. |
| US4443870A (en) * | 1981-10-15 | 1984-04-17 | Burroughs Corporation | Optical memory system providing track following |
| JPS58158038A (ja) * | 1982-03-15 | 1983-09-20 | Toshiba Corp | 光デイスク装置 |
| JPS59227039A (ja) * | 1983-06-07 | 1984-12-20 | Matsushita Electric Ind Co Ltd | 記録再生用デイスク原盤作成装置 |
| JPS6185653A (ja) * | 1984-10-02 | 1986-05-01 | Sharp Corp | 光磁気メモリ素子 |
| JPS63144454A (ja) * | 1986-12-08 | 1988-06-16 | Alps Electric Co Ltd | 情報記録デイスク |
| JP3264385B2 (ja) * | 1992-09-09 | 2002-03-11 | ソニー株式会社 | 光デイスク記録再生装置 |
| US7701836B2 (en) | 2001-11-27 | 2010-04-20 | Hewlett-Packard Development Company, L.P. | Re-writable optical disk having reference clock information permanently formed on the disk |
| US6046968A (en) * | 1997-07-24 | 2000-04-04 | Hewlett-Packard Company | Re-writable optical disk having reference clock information permanently formed on the disk |
| KR100416588B1 (ko) * | 2001-01-04 | 2004-02-05 | 삼성전자주식회사 | 워블 결함 검출 장치 및 방법 |
| EP1639587A1 (en) * | 2003-06-19 | 2006-03-29 | Koninklijke Philips Electronics N.V. | Device and method of reducing data-to-pushpull cross-talk |
-
1980
- 1980-11-19 NL NL8006306A patent/NL8006306A/nl not_active Application Discontinuation
-
1981
- 1981-11-13 DE DE19813145128 patent/DE3145128A1/de not_active Withdrawn
- 1981-11-16 JP JP56182417A patent/JPS57113426A/ja active Pending
- 1981-11-16 GB GB8134435A patent/GB2087628B/en not_active Expired
- 1981-11-16 IT IT25119/81A patent/IT1194113B/it active
- 1981-11-17 ES ES507205A patent/ES507205A0/es active Granted
- 1981-11-18 FR FR8121561A patent/FR2494476A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB2087628A (en) | 1982-05-26 |
| NL8006306A (nl) | 1982-06-16 |
| IT8125119A0 (it) | 1981-11-16 |
| DE3145128A1 (de) | 1982-06-24 |
| IT1194113B (it) | 1988-09-14 |
| GB2087628B (en) | 1984-10-10 |
| ES8301044A1 (es) | 1982-11-01 |
| ES507205A0 (es) | 1982-11-01 |
| JPS57113426A (en) | 1982-07-14 |
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