DE3476483D1 - Optical memory disc - Google Patents
Optical memory discInfo
- Publication number
- DE3476483D1 DE3476483D1 DE8484305616T DE3476483T DE3476483D1 DE 3476483 D1 DE3476483 D1 DE 3476483D1 DE 8484305616 T DE8484305616 T DE 8484305616T DE 3476483 T DE3476483 T DE 3476483T DE 3476483 D1 DE3476483 D1 DE 3476483D1
- Authority
- DE
- Germany
- Prior art keywords
- optical memory
- memory disc
- disc
- optical
- memory
- 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
- 230000003287 optical effect Effects 0.000 title 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/0014—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form
- G11B23/0021—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form discs
- G11B23/0028—Details
- G11B23/0035—Details means incorporated in the disc, e.g. hub, to enable its guiding, loading or driving
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Optical Record Carriers (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58151009A JPH0636253B2 (ja) | 1983-08-18 | 1983-08-18 | 光メモリ円板 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3476483D1 true DE3476483D1 (en) | 1989-03-02 |
Family
ID=15509293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8484305616T Expired DE3476483D1 (en) | 1983-08-18 | 1984-08-17 | Optical memory disc |
Country Status (5)
Country | Link |
---|---|
US (1) | US4634617A (de) |
EP (1) | EP0136041B1 (de) |
JP (1) | JPH0636253B2 (de) |
CA (1) | CA1226063A (de) |
DE (1) | DE3476483D1 (de) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6085724U (ja) * | 1983-11-17 | 1985-06-13 | シャープ株式会社 | 光メモリ円板 |
JPS60117436A (ja) * | 1983-11-29 | 1985-06-24 | Sharp Corp | 磁気光学記憶素子 |
US4719137A (en) * | 1984-04-13 | 1988-01-12 | Sharp Kabushiki Kaisha | Magneto-optic memory element |
US4740947A (en) * | 1984-04-25 | 1988-04-26 | Sharp Kabushiki Kaisha | Dual surface optical memory disc |
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 |
JPS6163941A (ja) * | 1984-09-05 | 1986-04-02 | Matsushita Electric Ind Co Ltd | 光デイスク |
JPS6185653A (ja) * | 1984-10-02 | 1986-05-01 | Sharp Corp | 光磁気メモリ素子 |
JPH0697514B2 (ja) * | 1985-02-21 | 1994-11-30 | シャープ株式会社 | 磁気光学記憶素子 |
NL8501148A (nl) * | 1985-04-19 | 1986-11-17 | Optical Storage Int | Werkwijze voor het aanbrengen van een optisch detecteerbare structuur op het substraat van een optisch uitleesbare informatieschijf, matrijs ten behoeve van de werkwijze, inrichting voor het uitvoeren van de werkwijze, alsmede informatieschijf vervaardigd volgens de werkwijze. |
JPS62121942A (ja) * | 1985-07-30 | 1987-06-03 | Hoya Corp | 光情報記録媒体用基板と光情報記録媒体の各製造方法 |
EP0434114B1 (de) * | 1985-08-30 | 1994-01-26 | Sharp Kabushiki Kaisha | Element für optische Speicherung und Verfahren zu dessen Herstellung |
DE3604698A1 (de) * | 1986-02-14 | 1987-08-20 | Leybold Heraeus Gmbh & Co Kg | Maske fuer ringfoermige substrate |
JPS62192945A (ja) * | 1986-02-20 | 1987-08-24 | Sony Corp | 情報デイスク |
WO1988000755A1 (en) * | 1986-07-22 | 1988-01-28 | Mitsubishi Denki Kabushiki Kaisha | Optical disc |
JP2515757B2 (ja) * | 1986-10-13 | 1996-07-10 | パイオニア株式会社 | 光学式情報記録円盤の製造方法 |
JPS6396755A (ja) * | 1986-10-13 | 1988-04-27 | Pioneer Electronic Corp | 光学式情報記録円盤の製造方法 |
JPH07122969B2 (ja) * | 1986-11-05 | 1995-12-25 | 株式会社東芝 | 情報記憶媒体 |
US5265087A (en) * | 1986-11-28 | 1993-11-23 | Kabushiki Kaisha Toshiba | Information medium with improved temperature characteristics |
EP0356811B1 (de) * | 1988-08-30 | 1994-11-02 | Mitsubishi Rayon Co., Ltd. | Nabe für optische Speicherplatte und Verfahren zu deren Herstellung |
JPH05225609A (ja) * | 1992-02-06 | 1993-09-03 | Tdk Corp | 光ディスク用基板および光ディスク |
US5391414A (en) * | 1992-09-21 | 1995-02-21 | Minnesota Mining And Manufacturing Company | Diskettes having crosslinked adhesive bond to hub |
JPH09117804A (ja) * | 1996-10-21 | 1997-05-06 | Alps Tool:Kk | 棒材供給装置の棒材搬送量検出装置 |
JPH10149578A (ja) * | 1996-11-20 | 1998-06-02 | Taiyo Yuden Co Ltd | 光記録媒体 |
JPH10188508A (ja) * | 1996-12-25 | 1998-07-21 | Sony Corp | 光学ディスク |
US6400675B1 (en) * | 1997-05-15 | 2002-06-04 | Benjamin James Everidge | Compact disc with a disc tray alignment means |
KR100378086B1 (ko) * | 2001-05-14 | 2003-03-29 | 엘지전자 주식회사 | 클랭핑 영역의 상하면이 서로다른 높이를 갖는 고밀도 광디스크 |
FR2850785B1 (fr) * | 2003-01-30 | 2006-05-26 | Marie Therese Iruela Guillot | Dispositif de protection pour disque optique |
US7617507B2 (en) * | 2003-06-03 | 2009-11-10 | Lg Electronics Inc. | High-density recording medium and recording and/or reproducing device therefor |
KR20070106587A (ko) * | 2005-03-03 | 2007-11-01 | 엔엑스넷, 인크. | 감소된 평면 두께를 갖는 광 디스크 |
US7716695B2 (en) * | 2005-10-07 | 2010-05-11 | Enxnet, Inc. | Thin optical disc having remote reading capability |
EP1932151A4 (de) * | 2005-10-07 | 2009-01-21 | Enxnet Inc | Dünner optischer datenträger mit fernlesemöglichkeit |
WO2013145523A1 (ja) * | 2012-03-28 | 2013-10-03 | パナソニック株式会社 | ディスク |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1885415A (en) * | 1930-09-20 | 1932-11-01 | Capehart Corp | Flexible phonograph record holder |
US2654816A (en) * | 1951-10-31 | 1953-10-06 | Proctor Electric Co | Electric switch |
NL7713710A (nl) * | 1977-12-12 | 1979-06-14 | Philips Nv | Schijfvormige informatiedrager met afdeklagen. |
EP0026880A1 (de) * | 1979-10-03 | 1981-04-15 | Teldec Telefunken-Decca Schallplatten Gmbh | Plattenförmiger Aufzeichnungsträger und Verfahren zu dessen Herstellung |
JPS56145535A (en) * | 1980-04-15 | 1981-11-12 | Matsushita Electric Ind Co Ltd | Disc for optical recording |
JPS5786173A (en) * | 1980-11-17 | 1982-05-29 | Toshiba Corp | Recorder and reproducer |
JPS5850636A (ja) * | 1981-09-18 | 1983-03-25 | Hitachi Ltd | 記録再生デイスク |
US4480282A (en) * | 1982-02-22 | 1984-10-30 | Verbatim Corporation | Stabilized locating ring for a flexible disk |
-
1983
- 1983-08-18 JP JP58151009A patent/JPH0636253B2/ja not_active Expired - Lifetime
-
1984
- 1984-08-03 CA CA000460407A patent/CA1226063A/en not_active Expired
- 1984-08-08 US US06/638,674 patent/US4634617A/en not_active Expired - Lifetime
- 1984-08-17 EP EP84305616A patent/EP0136041B1/de not_active Expired
- 1984-08-17 DE DE8484305616T patent/DE3476483D1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6043242A (ja) | 1985-03-07 |
CA1226063A (en) | 1987-08-25 |
US4634617A (en) | 1987-01-06 |
EP0136041A1 (de) | 1985-04-03 |
EP0136041B1 (de) | 1989-01-25 |
JPH0636253B2 (ja) | 1994-05-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3476483D1 (en) | Optical memory disc | |
EP0446967A3 (en) | An optical memory element | |
DE3569054D1 (en) | Optical disk | |
EP0100995A3 (en) | Optical disk | |
DE3377034D1 (en) | Optical disk | |
GB2104412B (en) | Optical disc | |
EP0173523A3 (en) | Optical memory | |
GB2153298B (en) | Optical disc | |
SG129792G (en) | Optical disc | |
GB2135475B (en) | Optical de-polarizer | |
DE3476482D1 (en) | Optical memory disc | |
GB8411509D0 (en) | Optical disc | |
EP0116467A3 (en) | Optical disc players | |
DE3468287D1 (en) | Optical disc player | |
DE3380426D1 (en) | Optical disc reproducer | |
GB8614480D0 (en) | Optical disc memory | |
DE3471790D1 (en) | Optical disc players | |
DE3477297D1 (en) | Cost-reduced optical memory disk | |
DE3469389D1 (en) | Optical recording element | |
GB8423534D0 (en) | Optical storage system | |
EP0351888A3 (en) | Disk unit | |
GB8423535D0 (en) | Optical storage medium | |
DE3365006D1 (en) | Optical recording disc | |
AU91189S (en) | An optical disk | |
GB8330101D0 (en) | Optical data storage |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8328 | Change in the person/name/address of the agent |
Free format text: PATENTANWAELTE MUELLER & HOFFMANN, 81667 MUENCHEN |