SE7810127L - Apparat for skrivning och avlesning av ett videoskivelement jemte videoskivelement - Google Patents
Apparat for skrivning och avlesning av ett videoskivelement jemte videoskivelementInfo
- Publication number
- SE7810127L SE7810127L SE7810127A SE7810127A SE7810127L SE 7810127 L SE7810127 L SE 7810127L SE 7810127 A SE7810127 A SE 7810127A SE 7810127 A SE7810127 A SE 7810127A SE 7810127 L SE7810127 L SE 7810127L
- Authority
- SE
- Sweden
- Prior art keywords
- frequency
- modulated signal
- specular
- markings
- light
- Prior art date
Links
- 238000000034 method Methods 0.000 abstract 2
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
- G11B7/007—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
-
- 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
- G11B7/0079—Zoned data area, e.g. having different data structures or formats for the user data within data layer, Zone Constant Linear Velocity [ZCLV], Zone Constant Angular Velocity [ZCAV], carriers with RAM and ROM areas
-
- 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
-
- 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
- G11B7/2403—Layers; Shape, structure or physical properties thereof
- G11B7/24062—Reflective layers
Landscapes
- Engineering & Computer Science (AREA)
- Software Systems (AREA)
- Theoretical Computer Science (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7810127A SE419682B (sv) | 1978-09-27 | 1978-09-27 | Informationslagringselement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7810127A SE419682B (sv) | 1978-09-27 | 1978-09-27 | Informationslagringselement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE7810127L true SE7810127L (sv) | 1980-03-28 |
| SE419682B SE419682B (sv) | 1981-08-17 |
Family
ID=20335934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7810127A SE419682B (sv) | 1978-09-27 | 1978-09-27 | Informationslagringselement |
Country Status (1)
| Country | Link |
|---|---|
| SE (1) | SE419682B (sv) |
-
1978
- 1978-09-27 SE SE7810127A patent/SE419682B/sv not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| SE419682B (sv) | 1981-08-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
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