JPS5753844A - Optical recording and reproducing disk - Google Patents
Optical recording and reproducing diskInfo
- Publication number
- JPS5753844A JPS5753844A JP55128547A JP12854780A JPS5753844A JP S5753844 A JPS5753844 A JP S5753844A JP 55128547 A JP55128547 A JP 55128547A JP 12854780 A JP12854780 A JP 12854780A JP S5753844 A JPS5753844 A JP S5753844A
- Authority
- JP
- Japan
- Prior art keywords
- sector
- defective sector
- sectors
- reproducing
- erased
- 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.)
- Pending
Links
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
- G11B20/1883—Methods for assignment of alternate areas for defective areas
-
- 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
- G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
- G11B7/0037—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs
-
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55128547A JPS5753844A (en) | 1980-09-18 | 1980-09-18 | Optical recording and reproducing disk |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55128547A JPS5753844A (en) | 1980-09-18 | 1980-09-18 | Optical recording and reproducing disk |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5753844A true JPS5753844A (en) | 1982-03-31 |
Family
ID=14987448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55128547A Pending JPS5753844A (en) | 1980-09-18 | 1980-09-18 | Optical recording and reproducing disk |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5753844A (ja) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58177537A (ja) * | 1982-04-08 | 1983-10-18 | Matsushita Electric Ind Co Ltd | 光学デイスク |
EP0149755A2 (en) * | 1983-11-25 | 1985-07-31 | Matsushita Electric Industrial Co., Ltd. | Optical information recording and reproducing apparatus |
EP0164746A2 (en) * | 1984-06-15 | 1985-12-18 | Matsushita Electric Industrial Co., Ltd. | Optical information recording and reproducing apparatus and optical disc |
JPS61120753U (ja) * | 1985-01-10 | 1986-07-30 | ||
EP0194640A2 (en) * | 1985-03-12 | 1986-09-17 | Matsushita Electric Industrial Co., Ltd. | Information recording and reproducing apparatus |
JPH027243A (ja) * | 1989-03-14 | 1990-01-11 | Hitachi Maxell Ltd | 光ディスクおよびその製造方法 |
JPH064058U (ja) * | 1992-06-22 | 1994-01-18 | 中外炉工業株式会社 | ウォーキングビーム式加熱炉の抽出部開口用シール装置 |
US6671240B2 (en) | 2000-11-09 | 2003-12-30 | Fujitsu Limited | Defective region processing apparatus, defective region processing method, and information storage device |
US6870803B2 (en) | 2000-11-09 | 2005-03-22 | Fujitsu Limited | Information storage apparatus and information reproducing method for reducing cross talk from a region adjacent a recorded information mark |
-
1980
- 1980-09-18 JP JP55128547A patent/JPS5753844A/ja active Pending
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58177537A (ja) * | 1982-04-08 | 1983-10-18 | Matsushita Electric Ind Co Ltd | 光学デイスク |
JPH0237006B2 (ja) * | 1982-04-08 | 1990-08-22 | Matsushita Electric Ind Co Ltd | |
EP0149755A2 (en) * | 1983-11-25 | 1985-07-31 | Matsushita Electric Industrial Co., Ltd. | Optical information recording and reproducing apparatus |
EP0164746A2 (en) * | 1984-06-15 | 1985-12-18 | Matsushita Electric Industrial Co., Ltd. | Optical information recording and reproducing apparatus and optical disc |
JPS61120753U (ja) * | 1985-01-10 | 1986-07-30 | ||
EP0194640A2 (en) * | 1985-03-12 | 1986-09-17 | Matsushita Electric Industrial Co., Ltd. | Information recording and reproducing apparatus |
JPH027243A (ja) * | 1989-03-14 | 1990-01-11 | Hitachi Maxell Ltd | 光ディスクおよびその製造方法 |
JPH0444818B2 (ja) * | 1989-03-14 | 1992-07-22 | Hitachi Maxell | |
JPH064058U (ja) * | 1992-06-22 | 1994-01-18 | 中外炉工業株式会社 | ウォーキングビーム式加熱炉の抽出部開口用シール装置 |
US6671240B2 (en) | 2000-11-09 | 2003-12-30 | Fujitsu Limited | Defective region processing apparatus, defective region processing method, and information storage device |
US6870803B2 (en) | 2000-11-09 | 2005-03-22 | Fujitsu Limited | Information storage apparatus and information reproducing method for reducing cross talk from a region adjacent a recorded information mark |
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