JPS5756138B2 - - Google Patents
Info
- Publication number
- JPS5756138B2 JPS5756138B2 JP51051559A JP5155976A JPS5756138B2 JP S5756138 B2 JPS5756138 B2 JP S5756138B2 JP 51051559 A JP51051559 A JP 51051559A JP 5155976 A JP5155976 A JP 5155976A JP S5756138 B2 JPS5756138 B2 JP S5756138B2
- Authority
- JP
- Japan
- 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
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
Landscapes
- Automatic Focus Adjustment (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5155976A JPS52134704A (en) | 1976-05-06 | 1976-05-06 | Optical recorder/reproducer unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5155976A JPS52134704A (en) | 1976-05-06 | 1976-05-06 | Optical recorder/reproducer unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS52134704A JPS52134704A (en) | 1977-11-11 |
| JPS5756138B2 true JPS5756138B2 (cs) | 1982-11-27 |
Family
ID=12890335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5155976A Granted JPS52134704A (en) | 1976-05-06 | 1976-05-06 | Optical recorder/reproducer unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS52134704A (cs) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58121142A (ja) * | 1982-01-13 | 1983-07-19 | Matsushita Electric Ind Co Ltd | 光学記録再生装置 |
| NL8200208A (nl) * | 1982-01-21 | 1983-08-16 | Philips Nv | Inrichting voor het uitlezen van een schijfvormige registratiedrager. |
| JPS59157226U (ja) * | 1983-04-07 | 1984-10-22 | 三洋電機株式会社 | 記録ビ−ム制限回路 |
| JPS62154328A (ja) * | 1985-12-27 | 1987-07-09 | Nec Corp | 情報記録再生装置 |
| JPS63100623A (ja) * | 1986-11-28 | 1988-05-02 | Matsushita Electric Ind Co Ltd | 光学的再生装置 |
| JPS6446237A (en) * | 1987-08-12 | 1989-02-20 | Canon Kk | Optical information recording and reproducing device |
| JP2682635B2 (ja) * | 1988-04-07 | 1997-11-26 | 株式会社リコー | 光ディスク装置 |
| US5138596A (en) * | 1988-07-11 | 1992-08-11 | Canon Kabushiki Kaisha | Optical information recording apparatus including means for delaying servo gain by a predetermined time |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS544604B2 (cs) * | 1973-04-21 | 1979-03-08 | ||
| NL7410642A (nl) * | 1974-08-08 | 1976-02-10 | Philips Nv | Opto-elektronisch fokusseringsdetektiestelsel. |
-
1976
- 1976-05-06 JP JP5155976A patent/JPS52134704A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS52134704A (en) | 1977-11-11 |