JPS6325408B2 - - Google Patents
Info
- Publication number
- JPS6325408B2 JPS6325408B2 JP59064952A JP6495284A JPS6325408B2 JP S6325408 B2 JPS6325408 B2 JP S6325408B2 JP 59064952 A JP59064952 A JP 59064952A JP 6495284 A JP6495284 A JP 6495284A JP S6325408 B2 JPS6325408 B2 JP S6325408B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- recording
- light
- 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
- 238000000034 method Methods 0.000 claims description 17
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 description 32
- 238000010586 diagram Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 238000010894 electron beam technology Methods 0.000 description 5
- 230000003321 amplification Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 229910052798 chalcogen Inorganic materials 0.000 description 3
- 150000001787 chalcogens Chemical class 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000012447 hatching Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 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
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1816—Testing
- G11B20/182—Testing using test patterns
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59064952A JPS59193544A (ja) | 1984-03-30 | 1984-03-30 | 信号記録方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59064952A JPS59193544A (ja) | 1984-03-30 | 1984-03-30 | 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 |
|---|---|
| JPS59193544A JPS59193544A (ja) | 1984-11-02 |
| JPS6325408B2 true JPS6325408B2 (enrdf_load_stackoverflow) | 1988-05-25 |
Family
ID=13272880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59064952A Granted JPS59193544A (ja) | 1984-03-30 | 1984-03-30 | 信号記録方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59193544A (enrdf_load_stackoverflow) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62167620A (ja) * | 1986-01-18 | 1987-07-24 | Sanyo Electric Co Ltd | 光デイスクフアイル装置 |
| JP2592086B2 (ja) * | 1988-02-12 | 1997-03-19 | 日立マクセル株式会社 | 記録媒体の記録感度補正方式 |
| JPH02128326A (ja) * | 1988-11-09 | 1990-05-16 | Nec Corp | 光学的記録再生装置 |
| JP2764965B2 (ja) * | 1988-11-29 | 1998-06-11 | ソニー株式会社 | 光出力設定制御装置及び光出力設定制御方法 |
| US5303217A (en) * | 1989-06-23 | 1994-04-12 | U.S. Philips Corporation | Optical recording device wherein recording beam intensity is set in accordance with an optimum value of the DC component of a recorded signal |
| JPH0393047A (ja) * | 1989-09-05 | 1991-04-18 | Nec Corp | 光学的記録再生装置 |
| US5361247A (en) | 1989-09-12 | 1994-11-01 | Sharp Kabushiki Kaisha | Information recording and reproducing device with reproduction and automatic gain control circuit |
| JPH03171437A (ja) * | 1989-11-30 | 1991-07-24 | Matsushita Electric Ind Co Ltd | 信号記録方法と最適パワー設定装置 |
| JP2557555B2 (ja) * | 1990-07-20 | 1996-11-27 | 株式会社ケンウッド | 光ディスク記録時のレーザ出力設定方法 |
| US5648952A (en) * | 1994-09-28 | 1997-07-15 | Ricoh Company, Ltd. | Phase-change optical disc recording method and apparatus, and information recording apparatus and recording pre-compensation method |
-
1984
- 1984-03-30 JP JP59064952A patent/JPS59193544A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59193544A (ja) | 1984-11-02 |
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