JPH0451895B2 - - Google Patents
Info
- Publication number
- JPH0451895B2 JPH0451895B2 JP56203474A JP20347481A JPH0451895B2 JP H0451895 B2 JPH0451895 B2 JP H0451895B2 JP 56203474 A JP56203474 A JP 56203474A JP 20347481 A JP20347481 A JP 20347481A JP H0451895 B2 JPH0451895 B2 JP H0451895B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- laser diode
- output
- clamp
- video signal
- 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
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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Semiconductor Lasers (AREA)
- Optical Head (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56203474A JPS58105440A (ja) | 1981-12-18 | 1981-12-18 | クランプ電位可変形映像信号光変調回路 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56203474A JPS58105440A (ja) | 1981-12-18 | 1981-12-18 | クランプ電位可変形映像信号光変調回路 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58105440A JPS58105440A (ja) | 1983-06-23 |
| JPH0451895B2 true JPH0451895B2 (enrdf_load_stackoverflow) | 1992-08-20 |
Family
ID=16474734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56203474A Granted JPS58105440A (ja) | 1981-12-18 | 1981-12-18 | クランプ電位可変形映像信号光変調回路 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58105440A (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2606197B2 (ja) * | 1986-08-25 | 1997-04-30 | ソニー株式会社 | 半導体レーザ装置 |
| JP2702958B2 (ja) * | 1988-03-25 | 1998-01-26 | 株式会社日立製作所 | 半導体レーザ駆動回路 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6053373B2 (ja) * | 1978-05-22 | 1985-11-25 | 松下電器産業株式会社 | 画像信号の再生光パワ−ドリフト制御方法 |
-
1981
- 1981-12-18 JP JP56203474A patent/JPS58105440A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58105440A (ja) | 1983-06-23 |