FR2371836A1 - Appareil de reproduction audiovisuelle - Google Patents
Appareil de reproduction audiovisuelleInfo
- Publication number
- FR2371836A1 FR2371836A1 FR7734739A FR7734739A FR2371836A1 FR 2371836 A1 FR2371836 A1 FR 2371836A1 FR 7734739 A FR7734739 A FR 7734739A FR 7734739 A FR7734739 A FR 7734739A FR 2371836 A1 FR2371836 A1 FR 2371836A1
- Authority
- FR
- France
- Prior art keywords
- sound
- information
- spiral
- audiovisual
- image
- 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
- 230000010355 oscillation Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/84—Television signal recording using optical recording
- H04N5/85—Television signal recording using optical recording on discs or drums
-
- 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
- G11B23/38—Visual features other than those contained in record tracks or represented by sprocket holes the visual signals being auxiliary signals
- G11B23/42—Marks for indexing, speed-controlling, synchronising, or timing
-
- 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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
-
- 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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble
-
- 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
- G11B7/14—Heads, e.g. forming of the optical beam spot or modulation of the optical beam specially adapted to record on, or to reproduce from, more than one track simultaneously
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Television Signal Processing For Recording (AREA)
- Optical Communication System (AREA)
Abstract
Appareil pour la reproduction audiovisuelle d'enregistrements de signaux d'image, de son et de commande disposés suivant une spirale sur un support d'information en forme de disque tournant autour du centre de la spirale. Les signaux d'image, de son et de commande de la piste d'information sont projetés conjointement et continuellement sur un ensemble de photodiodes 19, disposées sur une ligne, par un objectif 14 qui est automatiquement réajusté en fonction des oscillations verticales du support d'information 3, la piste d'information comportant des pistes parallèles entre elles prévues respectivement pour l'image et le son ainsi que pour la compensation de mouvements horizontaux et verticaux. L'invention est applicable notamment à la reproduction d'émissions audiovisuelles au moyen d'un téléviseur.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2652936A DE2652936C3 (de) | 1976-11-22 | 1976-11-22 | Audiovisuelles Wiedergabegerät |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2371836A1 true FR2371836A1 (fr) | 1978-06-16 |
FR2371836B1 FR2371836B1 (fr) | 1984-10-12 |
Family
ID=5993654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7734739A Granted FR2371836A1 (fr) | 1976-11-22 | 1977-11-18 | Appareil de reproduction audiovisuelle |
Country Status (6)
Country | Link |
---|---|
US (1) | US4144542A (fr) |
JP (1) | JPS6053952B2 (fr) |
DE (1) | DE2652936C3 (fr) |
FR (1) | FR2371836A1 (fr) |
GB (1) | GB1591995A (fr) |
NL (1) | NL189485C (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2052829B (en) * | 1979-04-27 | 1983-01-12 | Olympus Optical Co | Apparatus for driving objective lens in tracking direction |
US4283777A (en) * | 1979-05-14 | 1981-08-11 | Xerox Corporation | Optical memory having a parallel read out |
GB8318278D0 (en) * | 1983-07-06 | 1983-08-10 | Kodak Ltd | Disc film scanning apparatus |
EP0261608A3 (en) * | 1986-09-20 | 1990-05-30 | Csk Corporation | Optical recording medium |
JPH0421410Y2 (fr) * | 1986-11-11 | 1992-05-15 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2211708A1 (fr) * | 1972-12-20 | 1974-07-19 | Io Metrics Corp |
Family Cites Families (4)
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 |
US3946367A (en) * | 1972-12-20 | 1976-03-23 | Videonics Of Hawaii, Inc. | Three dimensional electro-optical retrieval system |
NL177157C (nl) * | 1975-02-28 | 1985-08-01 | Philips Nv | Inrichting voor het uitlezen van een vlakke registratiedrager met een optisch uitleesbare informatiestruktuur. |
JPS598892B2 (ja) * | 1975-06-19 | 1984-02-28 | ソニー株式会社 | 信号の光学的記録再生装置 |
-
1976
- 1976-11-22 DE DE2652936A patent/DE2652936C3/de not_active Expired
-
1977
- 1977-11-18 FR FR7734739A patent/FR2371836A1/fr active Granted
- 1977-11-18 NL NLAANVRAGE7712711,A patent/NL189485C/xx not_active IP Right Cessation
- 1977-11-21 US US05/853,174 patent/US4144542A/en not_active Expired - Lifetime
- 1977-11-21 GB GB48305/77A patent/GB1591995A/en not_active Expired
- 1977-11-22 JP JP52139520A patent/JPS6053952B2/ja not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2211708A1 (fr) * | 1972-12-20 | 1974-07-19 | Io Metrics Corp |
Also Published As
Publication number | Publication date |
---|---|
JPS5373912A (en) | 1978-06-30 |
NL7712711A (nl) | 1978-05-24 |
NL189485C (nl) | 1993-04-16 |
NL189485B (nl) | 1992-11-16 |
DE2652936B2 (de) | 1980-04-03 |
JPS6053952B2 (ja) | 1985-11-28 |
DE2652936C3 (de) | 1980-11-27 |
FR2371836B1 (fr) | 1984-10-12 |
DE2652936A1 (de) | 1978-05-24 |
GB1591995A (en) | 1981-07-01 |
US4144542A (en) | 1979-03-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |