JPS6325409B2 - - Google Patents
Info
- Publication number
- JPS6325409B2 JPS6325409B2 JP60257229A JP25722985A JPS6325409B2 JP S6325409 B2 JPS6325409 B2 JP S6325409B2 JP 60257229 A JP60257229 A JP 60257229A JP 25722985 A JP25722985 A JP 25722985A JP S6325409 B2 JPS6325409 B2 JP S6325409B2
- Authority
- JP
- Japan
- Prior art keywords
- recording
- light
- signal
- recording medium
- recorded
- 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
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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
-
- 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
- G11B7/0045—Recording
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60257229A JPS61122932A (ja) | 1985-11-15 | 1985-11-15 | 信号記録方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60257229A JPS61122932A (ja) | 1985-11-15 | 1985-11-15 | 信号記録方法 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50079777A Division JPS523405A (en) | 1975-06-27 | 1975-06-27 | Signal recording appliance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61122932A JPS61122932A (ja) | 1986-06-10 |
| JPS6325409B2 true JPS6325409B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1988-05-25 |
Family
ID=17303468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60257229A Granted JPS61122932A (ja) | 1985-11-15 | 1985-11-15 | 信号記録方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61122932A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2867591B2 (ja) * | 1990-04-26 | 1999-03-08 | ソニー株式会社 | 記録レーザビームの制御方法 |
| US5418770A (en) * | 1990-06-29 | 1995-05-23 | Hitachi, Ltd. | Method of and apparatus for correcting edge interval of pit in optical recording/read-out apparatus |
| JP2653259B2 (ja) * | 1991-03-19 | 1997-09-17 | 松下電器産業株式会社 | 記録レーザ強度設定方法及びレーザ記録装置 |
-
1985
- 1985-11-15 JP JP60257229A patent/JPS61122932A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61122932A (ja) | 1986-06-10 |