DE3483854D1 - Platte zum aufzeichnen und wiedergeben von optischen informationen. - Google Patents
Platte zum aufzeichnen und wiedergeben von optischen informationen.Info
- Publication number
- DE3483854D1 DE3483854D1 DE8484304804T DE3483854T DE3483854D1 DE 3483854 D1 DE3483854 D1 DE 3483854D1 DE 8484304804 T DE8484304804 T DE 8484304804T DE 3483854 T DE3483854 T DE 3483854T DE 3483854 D1 DE3483854 D1 DE 3483854D1
- Authority
- DE
- Germany
- Prior art keywords
- recording
- plate
- optical information
- playing back
- back optical
- 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
- G11B7/24085—Pits
-
- 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
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
-
- 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58128645A JPS6020335A (ja) | 1983-07-14 | 1983-07-14 | 光学情報記録再生用円盤 |
JP58128605A JPS6020331A (ja) | 1983-07-14 | 1983-07-14 | 光学情報記録再生用円盤 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3483854D1 true DE3483854D1 (de) | 1991-02-07 |
Family
ID=26464212
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8484304804T Expired - Lifetime DE3483854D1 (de) | 1983-07-14 | 1984-07-13 | Platte zum aufzeichnen und wiedergeben von optischen informationen. |
Country Status (3)
Country | Link |
---|---|
US (1) | US4852076A (de) |
EP (1) | EP0132137B1 (de) |
DE (1) | DE3483854D1 (de) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6151631A (ja) * | 1984-08-20 | 1986-03-14 | Sharp Corp | 光磁気メモリ素子 |
US5341362A (en) * | 1984-08-20 | 1994-08-23 | Sharp Kabushiki Kaisha | Optical memory device having guide tracks shaped for increasing the quality of information signals |
EP0261608A3 (en) * | 1986-09-20 | 1990-05-30 | Csk Corporation | Optical recording medium |
JP2684657B2 (ja) * | 1987-11-13 | 1997-12-03 | ヤマハ株式会社 | 光ディスク記録方法 |
NL8800255A (nl) * | 1988-02-03 | 1989-09-01 | Philips Nv | Optische registratiedrager. |
US5040165A (en) * | 1988-03-03 | 1991-08-13 | Hitachi Maxell, Ltd. | Optical information recording medium and method of fabricating the same |
JPH01258243A (ja) * | 1988-04-08 | 1989-10-16 | Fujitsu Ltd | 互換型書き換え可能光ディスク |
JPH0253237A (ja) * | 1988-08-16 | 1990-02-22 | Ricoh Co Ltd | 光学式情報記録媒体 |
US5170390A (en) * | 1988-08-22 | 1992-12-08 | Sharp Kabushiki Kaisha | Optical recording element and driving system |
US5249175A (en) * | 1988-09-09 | 1993-09-28 | Matsushita Electric Industrial Co., Ltd. | Optical information recording medium and information recording and reproducing method therefor |
EP0381099A3 (de) * | 1989-01-30 | 1992-02-19 | Hitachi Maxell Ltd. | Optisches Informationswiedergabesystem zum Lesen von Information aus einem Massenproduktionsinformationsaufzeichnungsmedium |
JP3160095B2 (ja) * | 1992-06-29 | 2001-04-23 | ティーディーケイ株式会社 | 光磁気ディスクの記録再生方法 |
USRE38643E1 (en) | 1994-01-19 | 2004-11-02 | Kabushiki Kaisha Toshiba | Optical disk having specified track pitch, and optical disk apparatus |
US5959963A (en) * | 1994-01-19 | 1999-09-28 | Kabushiki Kaisha Toshiba | Optical disk and optical disk apparatus |
US5459712A (en) * | 1994-01-19 | 1995-10-17 | Kabushiki Kaisha Toshiba | Optical disk and optical disk apparatus where information is recorded having a specific track pitch and as a plurality of pit trains, each including a plurality of substantially trapezoidal pits |
US5602825A (en) * | 1994-01-19 | 1997-02-11 | Kabushiki Kaisha Toshiba | Optical disk and optical disk apparatus |
US6487163B1 (en) * | 1994-01-19 | 2002-11-26 | Kabushiki Kaisha Toshiba | Optical disk and optical disk apparatus |
US6091693A (en) * | 1998-06-30 | 2000-07-18 | Fujitsu Limited | Optical recording medium and optical information storage unit |
JP4206620B2 (ja) * | 2000-07-31 | 2009-01-14 | 日本ビクター株式会社 | 光情報記録媒体およびその記録再生装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1165871A (en) * | 1978-11-08 | 1984-04-17 | Kornelis Bulthuis | Optically inscribable record carrier |
JPS56117341A (en) * | 1980-02-18 | 1981-09-14 | Toshiba Corp | Optical disk and its manufacture |
JPS56145535A (en) * | 1980-04-15 | 1981-11-12 | Matsushita Electric Ind Co Ltd | Disc for optical recording |
JPS5774846A (en) * | 1980-10-28 | 1982-05-11 | Toshiba Corp | Information storing medium |
JPS57158047A (en) * | 1981-03-24 | 1982-09-29 | Toshiba Corp | Optical information recording medium |
US4385372A (en) * | 1981-05-01 | 1983-05-24 | Drexler Technology Corporation | Reflective optical data storage and laser recording media having grooved dielectric encoded prerecorded information |
JPS5862842A (ja) * | 1981-10-09 | 1983-04-14 | Matsushita Electric Ind Co Ltd | 光学的記録用円盤 |
JPS58102347A (ja) * | 1981-12-11 | 1983-06-17 | Mitsubishi Electric Corp | 光デイスク記録担体 |
EP0100995A3 (en) * | 1982-08-10 | 1985-10-16 | Kabushiki Kaisha Toshiba | Optical disk |
SE514372C2 (sv) * | 1996-03-07 | 2001-02-19 | Skf Nova Ab | Smord rullningskontaktanordning, sätt och komposition för smörjning av en rullningskontaktanordning samt en keramisk rullkropp |
JP3489939B2 (ja) * | 1996-06-13 | 2004-01-26 | 株式会社エクセディ | クラッチカバー組立体 |
-
1984
- 1984-07-13 DE DE8484304804T patent/DE3483854D1/de not_active Expired - Lifetime
- 1984-07-13 EP EP84304804A patent/EP0132137B1/de not_active Expired
-
1987
- 1987-06-16 US US07/062,425 patent/US4852076A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0132137B1 (de) | 1990-12-27 |
US4852076A (en) | 1989-07-25 |
EP0132137A3 (en) | 1987-06-10 |
EP0132137A2 (de) | 1985-01-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |