IT8519458A0 - Disco di memoria leggibile otticamente - Google Patents
Disco di memoria leggibile otticamenteInfo
- Publication number
- IT8519458A0 IT8519458A0 IT8519458A IT1945885A IT8519458A0 IT 8519458 A0 IT8519458 A0 IT 8519458A0 IT 8519458 A IT8519458 A IT 8519458A IT 1945885 A IT1945885 A IT 1945885A IT 8519458 A0 IT8519458 A0 IT 8519458A0
- Authority
- IT
- Italy
- Prior art keywords
- readable memory
- optically readable
- memory disk
- disk
- optically
- Prior art date
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
- G11B7/24097—Structures for detection, control, recording operation or replay operation; Special shapes or structures for centering or eccentricity prevention; Arrangements for testing, inspecting or evaluating; Containers, cartridges or cassettes
-
- 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
- G11B7/24015—Air-sandwiched discs
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8400476A NL8400476A (nl) | 1984-02-14 | 1984-02-14 | Optisch uitleesbare geheugenschijf. |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8519458A0 true IT8519458A0 (it) | 1985-02-11 |
IT1183232B IT1183232B (it) | 1987-10-15 |
Family
ID=19843488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT19458/85A IT1183232B (it) | 1984-02-14 | 1985-02-11 | Disco di memoria leggibile otticamente |
Country Status (11)
Country | Link |
---|---|
JP (1) | JPS60140235U (it) |
BE (1) | BE901719A (it) |
CA (1) | CA1241744A (it) |
DD (1) | DD228381A5 (it) |
DE (1) | DE3505015A1 (it) |
ES (1) | ES8606710A1 (it) |
FR (1) | FR2559607A1 (it) |
GB (1) | GB2155684B (it) |
IT (1) | IT1183232B (it) |
NL (1) | NL8400476A (it) |
SU (1) | SU1487826A3 (it) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2343784B (en) * | 1998-11-16 | 2001-08-01 | Leung Ching Yuen | Irregular optical disc |
US20020136155A1 (en) * | 2001-03-06 | 2002-09-26 | Chieh-Ho Chen | CD safe to hold |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE203656C (it) * | ||||
DE190908C (it) * | ||||
GB335768A (en) * | 1929-10-24 | 1930-10-02 | Jacoviac Maurice | Improvements in protecting devices for gramophone disc records |
DE883811C (de) * | 1951-06-08 | 1953-07-20 | Hermann Geiselhart | Ring aus Gummi als Plattenschutz |
US4331966A (en) * | 1980-10-06 | 1982-05-25 | Storage Technology Corporation | Information storage device and method of forming same |
JPS5774842A (en) * | 1980-10-24 | 1982-05-11 | Mitsubishi Electric Corp | Optical information recording disk |
US4376963A (en) * | 1980-12-19 | 1983-03-15 | International Business Machines Corporation | Composite magnetic recording disk |
JPS57150155A (en) * | 1981-03-09 | 1982-09-16 | Matsushita Electric Ind Co Ltd | Magnetooptic disc |
JPS57172541A (en) * | 1981-04-15 | 1982-10-23 | Toshiba Corp | Information storage medium |
JPS57172542A (en) * | 1981-04-15 | 1982-10-23 | Toshiba Corp | Information storage medium |
FR2528216B1 (fr) * | 1982-06-08 | 1988-01-08 | Thomson Csf | Disque optique protege a porte-couche libre |
JPS5987636A (ja) * | 1982-11-10 | 1984-05-21 | Toshiba Corp | 情報記憶媒体 |
-
1984
- 1984-02-14 NL NL8400476A patent/NL8400476A/nl not_active Application Discontinuation
-
1985
- 1985-02-07 CA CA000473768A patent/CA1241744A/en not_active Expired
- 1985-02-11 ES ES540285A patent/ES8606710A1/es not_active Expired
- 1985-02-11 IT IT19458/85A patent/IT1183232B/it active
- 1985-02-12 DD DD85273212A patent/DD228381A5/de unknown
- 1985-02-12 FR FR8501934A patent/FR2559607A1/fr active Pending
- 1985-02-12 BE BE0/214507A patent/BE901719A/fr not_active IP Right Cessation
- 1985-02-13 GB GB08503678A patent/GB2155684B/en not_active Expired
- 1985-02-13 JP JP1985017893U patent/JPS60140235U/ja active Pending
- 1985-02-13 SU SU853862706A patent/SU1487826A3/ru active
- 1985-02-14 DE DE19853505015 patent/DE3505015A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
FR2559607A1 (fr) | 1985-08-16 |
CA1241744A (en) | 1988-09-06 |
GB2155684A (en) | 1985-09-25 |
DD228381A5 (de) | 1985-10-09 |
IT1183232B (it) | 1987-10-15 |
ES8606710A1 (es) | 1986-04-01 |
JPS60140235U (ja) | 1985-09-17 |
ES540285A0 (es) | 1986-04-01 |
GB2155684B (en) | 1988-11-02 |
NL8400476A (nl) | 1985-09-02 |
BE901719A (fr) | 1985-08-12 |
SU1487826A3 (ru) | 1989-06-15 |
DE3505015A1 (de) | 1985-08-14 |
GB8503678D0 (en) | 1985-03-13 |
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