FR2389192A1 - Systeme optique d'enregistrement-lecture sur bande - Google Patents
Systeme optique d'enregistrement-lecture sur bandeInfo
- Publication number
- FR2389192A1 FR2389192A1 FR7712951A FR7712951A FR2389192A1 FR 2389192 A1 FR2389192 A1 FR 2389192A1 FR 7712951 A FR7712951 A FR 7712951A FR 7712951 A FR7712951 A FR 7712951A FR 2389192 A1 FR2389192 A1 FR 2389192A1
- Authority
- FR
- France
- Prior art keywords
- tape
- recording
- reading system
- tape recording
- optical tape
- 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.)
- Granted
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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/128—Modulators
-
- 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
- G11B7/003—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Abstract
L'invention se rapporte aux systèmes optiques d'enregistrement-lecture sur bande d'une information transcrite selon une piste discontinue formée de tronçons de piste Selon l'invention, le rayonnement issu d'une source se projette sur la bande selon un alignement de n spots, des moyens acousto-optiques de balayage récurrent assurant un déplacement synchrone des n spots dans une direction perpendiculaire à leur direction d'alignement, en combinaison avec le défilement de la bande L'invention s'applique notamment à l'enregistrement-lecture de signaux de télévision, en vue d'une utilisation en reportage.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7712951A FR2389192A1 (fr) | 1977-04-29 | 1977-04-29 | Systeme optique d'enregistrement-lecture sur bande |
US05/900,008 US4199783A (en) | 1977-04-29 | 1978-04-25 | Optical system for recording and reading an information on a tape |
GB16839/78A GB1595854A (en) | 1977-04-29 | 1978-04-27 | Optical system for recording and reading information on a tape |
DE19782818959 DE2818959A1 (de) | 1977-04-29 | 1978-04-28 | Optische aufzeichnungs- und lesevorrichtung fuer bandaufzeichnungen |
CA000302259A CA1121511A (fr) | 1977-04-29 | 1978-04-28 | Systeme optique pour enregistrer et lire une information sur une bande |
JP5222678A JPS53136428A (en) | 1977-04-29 | 1978-04-28 | Optical device for recording and reading information on tape |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7712951A FR2389192A1 (fr) | 1977-04-29 | 1977-04-29 | Systeme optique d'enregistrement-lecture sur bande |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2389192A1 true FR2389192A1 (fr) | 1978-11-24 |
FR2389192B1 FR2389192B1 (fr) | 1981-06-12 |
Family
ID=9190073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7712951A Granted FR2389192A1 (fr) | 1977-04-29 | 1977-04-29 | Systeme optique d'enregistrement-lecture sur bande |
Country Status (6)
Country | Link |
---|---|
US (1) | US4199783A (fr) |
JP (1) | JPS53136428A (fr) |
CA (1) | CA1121511A (fr) |
DE (1) | DE2818959A1 (fr) |
FR (1) | FR2389192A1 (fr) |
GB (1) | GB1595854A (fr) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5848231A (ja) * | 1981-09-09 | 1983-03-22 | ア−ノルド・エム・レバイン | 音声記録再生装置 |
JPS6050631A (ja) * | 1983-08-29 | 1985-03-20 | Matsushita Electric Ind Co Ltd | 光学的記録・再生装置 |
WO1987002499A1 (fr) * | 1985-10-10 | 1987-04-23 | Opticon Technology Incorporated | Appareil d'enregistrement et de lecture de reperes de donnees optiques sur un support optique |
US4937810A (en) * | 1986-04-23 | 1990-06-26 | Drexler Technology Corporation | Optical recording tape with continuous prerecorded tracks |
US4957580A (en) * | 1986-04-23 | 1990-09-18 | Drexler Technology Corp. | Method for making an optical data card |
US4884260A (en) * | 1986-04-23 | 1989-11-28 | Drexler Technology Corporation | Data recording system for optical memory tape |
JPS6459597A (en) * | 1987-08-31 | 1989-03-07 | Hitachi Ltd | Information recorder |
JP2595599B2 (ja) * | 1987-12-29 | 1997-04-02 | ソニー株式会社 | 情報記録装置 |
JPH0544806Y2 (fr) * | 1988-06-27 | 1993-11-15 | ||
US5112670A (en) * | 1991-07-29 | 1992-05-12 | Vastor Inc. | Quasi-randomly/serially accessible mass storage medium |
DE4233655A1 (de) * | 1992-10-07 | 1994-04-14 | Futurum X Unternehmungsberatun | Verfahren zur Langzeitspeicherung elektronischer Daten auf einem optisch auslesbaren Trägermedium |
GB9318804D0 (en) * | 1993-09-10 | 1993-10-27 | Ici Plc | Optical data recordal |
US5680386A (en) * | 1993-12-23 | 1997-10-21 | Thomson-Csf | Optical method and system for writing/reading information on a recording medium |
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 |
WO1996009623A2 (fr) * | 1994-09-21 | 1996-03-28 | Philips Electronics N.V. | Support d'enregistrement, dispositif d'enregistrement et dispositif de lecture |
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 |
FR2755516B1 (fr) | 1996-11-05 | 1999-01-22 | Thomson Csf | Dispositif compact d'illumination |
FR2786345B1 (fr) | 1998-11-24 | 2001-02-09 | Thomson Csf | Dispositif de cryptage quantique |
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 |
FR2819061B1 (fr) * | 2000-12-28 | 2003-04-11 | Thomson Csf | Dispositif de controle de polarisation dans une liaison optique |
FR2824905B1 (fr) * | 2001-05-15 | 2003-08-29 | Thomson Csf | Gyrometre a fibre optique |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3534166A (en) * | 1967-08-04 | 1970-10-13 | Zenith Radio Corp | Television picture recording and replay system |
US3657473A (en) * | 1970-05-15 | 1972-04-18 | Zenith Radio Corp | Holographic image recording and reproducing system |
FR2127373A5 (fr) * | 1971-03-05 | 1972-10-13 | Thomson Csf | |
US3841733A (en) * | 1973-12-05 | 1974-10-15 | Itek Corp | Optical waveguide system for producing a line of modulated radiation data |
DE2543276A1 (de) * | 1975-09-27 | 1977-03-31 | Licentia Gmbh | Wiedergabesystem fuer auf einem bandfoermigen traeger aufgezeichnete informationen |
HU175630B (hu) * | 1976-12-15 | 1980-09-28 | Mta Szamitastech Autom Kutato | Lazernoe ustrojstvo dlja registracii dannykh i signalov |
-
1977
- 1977-04-29 FR FR7712951A patent/FR2389192A1/fr active Granted
-
1978
- 1978-04-25 US US05/900,008 patent/US4199783A/en not_active Expired - Lifetime
- 1978-04-27 GB GB16839/78A patent/GB1595854A/en not_active Expired
- 1978-04-28 DE DE19782818959 patent/DE2818959A1/de active Granted
- 1978-04-28 CA CA000302259A patent/CA1121511A/fr not_active Expired
- 1978-04-28 JP JP5222678A patent/JPS53136428A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
US4199783A (en) | 1980-04-22 |
FR2389192B1 (fr) | 1981-06-12 |
DE2818959A1 (de) | 1978-11-02 |
JPS53136428A (en) | 1978-11-29 |
JPS6362807B2 (fr) | 1988-12-05 |
DE2818959C2 (fr) | 1989-10-05 |
CA1121511A (fr) | 1982-04-06 |
GB1595854A (en) | 1981-08-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |