JPS6260731B2 - - Google Patents
Info
- Publication number
- JPS6260731B2 JPS6260731B2 JP13254380A JP13254380A JPS6260731B2 JP S6260731 B2 JPS6260731 B2 JP S6260731B2 JP 13254380 A JP13254380 A JP 13254380A JP 13254380 A JP13254380 A JP 13254380A JP S6260731 B2 JPS6260731 B2 JP S6260731B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- information
- track
- signal
- amount
- 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
- 238000000034 method Methods 0.000 claims description 13
- 230000003287 optical effect Effects 0.000 claims description 12
- 239000004065 semiconductor Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 102000001999 Transcription Factor Pit-1 Human genes 0.000 description 2
- 108010040742 Transcription Factor Pit-1 Proteins 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005315 distribution function Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 239000010409 thin film Substances 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/005—Reproducing
Landscapes
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13254380A JPS5758248A (en) | 1980-09-24 | 1980-09-24 | Readout method of high density light beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13254380A JPS5758248A (en) | 1980-09-24 | 1980-09-24 | Readout method of high density light beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5758248A JPS5758248A (en) | 1982-04-07 |
| JPS6260731B2 true JPS6260731B2 (nl) | 1987-12-17 |
Family
ID=15083733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13254380A Granted JPS5758248A (en) | 1980-09-24 | 1980-09-24 | Readout method of high density light beam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5758248A (nl) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5787344U (nl) * | 1980-11-18 | 1982-05-29 | ||
| JPH0185913U (nl) * | 1987-11-27 | 1989-06-07 | ||
| JPH0778877B2 (ja) * | 1988-04-06 | 1995-08-23 | 松下電器産業株式会社 | 光ディスク装置 |
| JP2710709B2 (ja) * | 1991-08-01 | 1998-02-10 | シャープ株式会社 | 光記録再生装置 |
| JPH05242512A (ja) * | 1991-12-19 | 1993-09-21 | Matsushita Electric Ind Co Ltd | 光ディスク装置 |
| JP3238497B2 (ja) * | 1992-11-12 | 2001-12-17 | 松下電器産業株式会社 | 光ピックアップヘッド装置 |
| US5740141A (en) * | 1993-03-09 | 1998-04-14 | Matsushita Electric Industrial Co., Ltd. | Signal processing device for an optical information reproducing apparatus |
| US5881039A (en) * | 1993-03-09 | 1999-03-09 | Matsushita Electric Industrial Co., Ltd. | Signal processing device for an optical information reproducing apparatus |
| EP1968048A1 (en) * | 2007-03-08 | 2008-09-10 | Deutsche Thomson OHG | Optical storage medium and apparatus for reading of respective data |
-
1980
- 1980-09-24 JP JP13254380A patent/JPS5758248A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5758248A (en) | 1982-04-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1249659A (en) | Optical disc having servo-track portions and sector addresses and apparatus | |
| US4209804A (en) | Record carrier containing information in an optically readable radiation reflecting information structure | |
| JPH0345456B2 (nl) | ||
| JPH0896362A (ja) | 光記録方法、光記録装置及び光記録媒体 | |
| JPS6260731B2 (nl) | ||
| JPH0481816B2 (nl) | ||
| US5260930A (en) | Optical information recording medium and reproducing apparatus for reproducing information from the medium | |
| US5838651A (en) | Optical read-out head capable of improved read-out of media with different pit heights | |
| JP3103220B2 (ja) | 光学式信号再生装置 | |
| JP2817520B2 (ja) | 同時記録再生光ディスク及びその光ヘッド装置 | |
| JPH0253223A (ja) | 光学式記録再生方法 | |
| JP2765402B2 (ja) | 光ヘッド装置 | |
| JP2619850B2 (ja) | 情報記録媒体 | |
| US5612937A (en) | Optical pickup apparatus having a bisected optical receiving element for tracking control | |
| JPS59185037A (ja) | 高密度情報記録再生装置 | |
| JP2783523B2 (ja) | 情報記録媒体の原盤記録方法および記録再生方法 | |
| JP2728474B2 (ja) | 光学的情報記録再生装置 | |
| JP2862972B2 (ja) | 光ディスク及びその記録・再生装置 | |
| KR100607940B1 (ko) | 광기록매체에 서보신호를 기록하는 방법 및 서보신호 기록 가능한 광픽업장치 | |
| JPS6049976B2 (ja) | 光学情報記録再生装置 | |
| JPS5942376B2 (ja) | 光学的記録再生装置 | |
| JPH05303755A (ja) | 光ヘッド装置 | |
| JPS60119643A (ja) | 光検出器 | |
| JPS6124029A (ja) | 光学的情報記録再生装置 | |
| JPH07192303A (ja) | 光ヘッド装置 |