FR2271617B1 - - Google Patents
Info
- Publication number
- FR2271617B1 FR2271617B1 FR7416875A FR7416875A FR2271617B1 FR 2271617 B1 FR2271617 B1 FR 2271617B1 FR 7416875 A FR7416875 A FR 7416875A FR 7416875 A FR7416875 A FR 7416875A FR 2271617 B1 FR2271617 B1 FR 2271617B1
- Authority
- FR
- France
- 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
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
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7416875A FR2271617B1 (US20070149660A1-20070628-C00088.png) | 1974-05-15 | 1974-05-15 | |
| US05/577,106 US4037251A (en) | 1974-05-15 | 1975-05-13 | Data carrier optically read out by transmission, and method of manufacturing said data carrier |
| CA226,860A CA1066801A (en) | 1974-05-15 | 1975-05-13 | Data carrier optically read out by transmission, and method of manufacturing said data carrier |
| GB20456/75A GB1513873A (en) | 1974-05-15 | 1975-05-14 | Data carrier optically read out by transmission and method of manufacturing said data carrier |
| IT49590/75A IT1035723B (it) | 1974-05-15 | 1975-05-14 | Supporto di informazione leggibile otticamente per trasmissione e procedimento di fabbricazione del detto supporto |
| JP50057908A JPS51304A (US20070149660A1-20070628-C00088.png) | 1974-05-15 | 1975-05-15 | |
| DE19752521671 DE2521671A1 (de) | 1974-05-15 | 1975-05-15 | Optisch lesbarer informationstraeger und verfahren zu seiner herstellung |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7416875A FR2271617B1 (US20070149660A1-20070628-C00088.png) | 1974-05-15 | 1974-05-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2271617A1 FR2271617A1 (US20070149660A1-20070628-C00088.png) | 1975-12-12 |
| FR2271617B1 true FR2271617B1 (US20070149660A1-20070628-C00088.png) | 1976-10-15 |
Family
ID=9138885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7416875A Expired FR2271617B1 (US20070149660A1-20070628-C00088.png) | 1974-05-15 | 1974-05-15 |
Country Status (7)
Families Citing this family (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4410968A (en) * | 1977-03-24 | 1983-10-18 | Thomas Lee Siwecki | Method and apparatus for recording on a disk supported deformable metallic film |
| JPS53149002A (en) * | 1977-05-31 | 1978-12-26 | Nippon Telegr & Teleph Corp <Ntt> | Optically reproduced memory carrier |
| US4315269A (en) * | 1977-08-29 | 1982-02-09 | Rca Corporation | Thick protective overcoat layer for optical video disc |
| US4300143A (en) * | 1977-08-29 | 1981-11-10 | Rca Corporation | Thin protective overcoat layer for optical video disc |
| US4310919A (en) * | 1979-01-15 | 1982-01-12 | Discovision Associates | Optical video disc structure |
| US4360820A (en) * | 1979-10-01 | 1982-11-23 | Omex | Laser recording medium |
| US4569903A (en) * | 1980-02-11 | 1986-02-11 | Fuji Photo Film Co., Ltd. | Optical recording medium |
| JPS56145535A (en) * | 1980-04-15 | 1981-11-12 | Matsushita Electric Ind Co Ltd | Disc for optical recording |
| DE3118058A1 (de) * | 1980-05-14 | 1982-03-11 | RCA Corp., 10020 New York, N.Y. | Aufzeichnungstraeger und verfahren zum schreiben einer informationsspur sowie zum loeschen einer in dem traeger gespeicherten information |
| JPS5766538A (en) * | 1980-10-08 | 1982-04-22 | Toshiba Corp | Information storage medium |
| JPS586536A (ja) * | 1981-07-01 | 1983-01-14 | Pioneer Electronic Corp | 光学式デイスク |
| NL8300685A (nl) * | 1983-02-24 | 1984-09-17 | Philips Nv | Optisch uitleesbare informatiedrager voorzien van een mantel uit verknoopte kunststof. |
| US4499477A (en) * | 1983-03-14 | 1985-02-12 | Minnesota Mining And Manufacturing Company | Cover assembly for optical recording medium |
| NL8301632A (nl) * | 1983-05-09 | 1984-12-03 | Philips Nv | Registratiedrager waarin langs optische weg informatie kan worden ingeschreven en uitgelezen. |
| US4639745A (en) * | 1984-01-11 | 1987-01-27 | Pioneer Electronic Corporation | Optical recording medium |
| US4652498A (en) * | 1985-10-22 | 1987-03-24 | Minnesota Mining And Manufacturing Company | Environmentally protected optical recording media |
| JPS63153743A (ja) * | 1986-07-10 | 1988-06-27 | Hitachi Maxell Ltd | 光情報記録媒体及びその製造方法 |
| JPS63834A (ja) * | 1987-06-17 | 1988-01-05 | Matsushita Electric Ind Co Ltd | 光学式記録担体 |
| JP2542647B2 (ja) * | 1987-11-23 | 1996-10-09 | 太陽誘電株式会社 | 光情報記録媒体 |
| WO1995017747A1 (fr) * | 1993-12-23 | 1995-06-29 | Thomson-Csf | Procede et systeme optiques d'inscription/lecture d'information sur un support d'enregistrement |
| FR2723243B1 (fr) * | 1994-07-26 | 1996-09-06 | Thomson Csf | Dispositif d'enregistrement et/ou de lecture de tetes magnetiques et son procede de realisation |
| ATE210868T1 (de) * | 1994-12-22 | 2001-12-15 | Ovd Kinegram Ag | Optisch maschinell lesbarer informationsträger |
| FR2731808B1 (fr) * | 1995-03-14 | 1997-04-11 | Thomson Csf | Systeme de reglage de focalisation optique |
| FR2739965B1 (fr) * | 1995-10-17 | 1997-11-07 | Thomson Csf | Dispositif emetteur-recepteur de lumiere et systeme de lecture optique |
| FR2742911B1 (fr) * | 1995-12-21 | 1998-02-06 | Thomson Csf | Support d'enregistrement/lecture optique d'informations et procede d'enregistrement |
| US6232045B1 (en) * | 1998-02-13 | 2001-05-15 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, a method for producing a recording blank |
| FR2786345B1 (fr) | 1998-11-24 | 2001-02-09 | Thomson Csf | Dispositif de cryptage quantique |
| FR2787232B1 (fr) | 1998-12-15 | 2001-02-23 | Thomson Csf | Disque d'enregistrement optique anti-piratage et procede de lecture d'un tel disque |
| FR2805071B1 (fr) | 2000-02-11 | 2002-05-03 | Moulage Plastique De L Ouest | Disque optique protege contre la copie et procede de protection pour un tel disque |
| FR2815458B1 (fr) * | 2000-10-17 | 2003-02-14 | Thomson Csf | Support d'enregistrement d'informations lisibles optiquement, procede pour sa realisation et systeme optique de reproduction desdites informations |
| ATE297049T1 (de) | 2000-10-17 | 2005-06-15 | Thales Sa | Optisch lesebares informationsaufzeichnungsmedium,dessen herstellungsverfahren, und optisches system zur wiedergabe dieser informationen |
| US7149173B2 (en) | 2000-10-17 | 2006-12-12 | Thales | Medium for recording optically readable data, method for making same and optical system reproducing said data |
| FR2824905B1 (fr) * | 2001-05-15 | 2003-08-29 | Thomson Csf | Gyrometre a fibre optique |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB304848A (en) * | 1927-10-31 | 1929-01-31 | Brenchley Ernest George Mittel | Improvements in or relating to sound recording |
| US1956626A (en) * | 1931-03-14 | 1934-05-01 | Percy A Robbins | Translucent sound record |
| US3430966A (en) * | 1967-04-03 | 1969-03-04 | Gauss Electrophysics Inc | Transparent recording disc |
| US3518442A (en) * | 1968-06-06 | 1970-06-30 | Gauss Electrophysics Inc | Video playback assembly wherein the record disc has optical recordings on both sides |
| US3833408A (en) * | 1972-04-19 | 1974-09-03 | Rca Corp | Video discs having a methyl alkyl silicone coating |
| US3843399A (en) * | 1972-04-19 | 1974-10-22 | Rca Corp | Metallized video disc having an insulating layer thereon |
| US3729317A (en) * | 1972-04-20 | 1973-04-24 | Eastman Kodak Co | Photographic film with magnetic recording layer |
| US3814904A (en) * | 1972-10-20 | 1974-06-04 | Rca Corp | Cryptographically coded cards employing synthetic light modifying portion |
| US3848095A (en) * | 1972-12-20 | 1974-11-12 | I O Metrics Corp | Three dimensional electro-optical retrieval system |
| US3931460A (en) * | 1974-02-04 | 1976-01-06 | Zenith Radio Corporation | Video disc with multiturn undulating storage track |
-
1974
- 1974-05-15 FR FR7416875A patent/FR2271617B1/fr not_active Expired
-
1975
- 1975-05-13 US US05/577,106 patent/US4037251A/en not_active Expired - Lifetime
- 1975-05-13 CA CA226,860A patent/CA1066801A/en not_active Expired
- 1975-05-14 GB GB20456/75A patent/GB1513873A/en not_active Expired
- 1975-05-14 IT IT49590/75A patent/IT1035723B/it active
- 1975-05-15 JP JP50057908A patent/JPS51304A/ja active Pending
- 1975-05-15 DE DE19752521671 patent/DE2521671A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE2521671A1 (de) | 1975-11-27 |
| CA1066801A (en) | 1979-11-20 |
| GB1513873A (en) | 1978-06-14 |
| FR2271617A1 (US20070149660A1-20070628-C00088.png) | 1975-12-12 |
| US4037251A (en) | 1977-07-19 |
| IT1035723B (it) | 1979-10-20 |
| JPS51304A (US20070149660A1-20070628-C00088.png) | 1976-01-06 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |