JPH0344386B2 - - Google Patents
Info
- Publication number
- JPH0344386B2 JPH0344386B2 JP56130103A JP13010381A JPH0344386B2 JP H0344386 B2 JPH0344386 B2 JP H0344386B2 JP 56130103 A JP56130103 A JP 56130103A JP 13010381 A JP13010381 A JP 13010381A JP H0344386 B2 JPH0344386 B2 JP H0344386B2
- Authority
- JP
- Japan
- Prior art keywords
- guide groove
- groove
- track
- signal
- adjacent tracks
- 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.)
- Expired - Lifetime
Links
- 230000003287 optical effect Effects 0.000 claims description 23
- 238000001514 detection method Methods 0.000 claims description 18
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 13
- 230000006866 deterioration Effects 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
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
- G11B7/08—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
- G11B7/0938—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 servo format, e.g. 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
- G11B7/007—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
- G11B7/00745—Sectoring or header formats within a track
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56130103A JPS5832239A (ja) | 1981-08-21 | 1981-08-21 | 光ディスク及びトラッキング信号検出方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56130103A JPS5832239A (ja) | 1981-08-21 | 1981-08-21 | 光ディスク及びトラッキング信号検出方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5832239A JPS5832239A (ja) | 1983-02-25 |
| JPH0344386B2 true JPH0344386B2 (enrdf_load_stackoverflow) | 1991-07-05 |
Family
ID=15026012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56130103A Granted JPS5832239A (ja) | 1981-08-21 | 1981-08-21 | 光ディスク及びトラッキング信号検出方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5832239A (enrdf_load_stackoverflow) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2523347B1 (fr) * | 1982-03-12 | 1988-11-04 | Thomson Csf | Support d'information mobile pregrave et dispositif optique de suivi de piste mettant en oeuvre un tel support |
| JPS5950047U (ja) * | 1982-09-24 | 1984-04-03 | 富士通株式会社 | 光デイスク媒体 |
| JPS6040534A (ja) * | 1983-08-16 | 1985-03-02 | Ricoh Co Ltd | トラツキング制御方法及び装置 |
| JPS6163930A (ja) * | 1984-09-04 | 1986-04-02 | Matsushita Electric Ind Co Ltd | 円盤状記録担体及び円盤状記録担体のアドレス信号再生装置 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7803517A (nl) * | 1978-04-03 | 1979-10-05 | Philips Nv | Registratiedrager met een optisch uitleesbare fase- struktuur en inrichting voor het uitlezen. |
| JPS57191842A (en) * | 1981-05-20 | 1982-11-25 | Sanyo Electric Co Ltd | Disk record and disk record recording method |
| JPS5812149A (ja) * | 1981-07-15 | 1983-01-24 | Nippon Columbia Co Ltd | ビデオ・デイスク及びその記録装置 |
-
1981
- 1981-08-21 JP JP56130103A patent/JPS5832239A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5832239A (ja) | 1983-02-25 |
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