FR2212070A6 - - Google Patents
Info
- Publication number
- FR2212070A6 FR2212070A6 FR7246189A FR7246189A FR2212070A6 FR 2212070 A6 FR2212070 A6 FR 2212070A6 FR 7246189 A FR7246189 A FR 7246189A FR 7246189 A FR7246189 A FR 7246189A FR 2212070 A6 FR2212070 A6 FR 2212070A6
- 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
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
- G11C13/048—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using other optical storage elements
-
- 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/005—Reproducing
-
- 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
- G11B7/0901—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 for track following only
-
- 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
-
- 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
- G11B7/13—Optical detectors therefor
-
- 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
- G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
- G11B7/24085—Pits
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7246189A FR2212070A6 (en) | 1972-08-25 | 1972-12-26 | |
DE19732342906 DE2342906C2 (en) | 1972-08-25 | 1973-08-24 | Optical storage medium and optical device for reading out the optical storage medium |
US425793A US3909608A (en) | 1972-12-26 | 1973-12-18 | Reproducing device for the optical reading out of a record carrying an embossed print |
GB5904273A GB1461590A (en) | 1972-08-25 | 1973-12-20 | Reproducing device |
CA188,610A CA997603A (en) | 1972-12-26 | 1973-12-20 | Reproducing device for the optical reading out of a record carrying an embossed print |
IT54579/73A IT1000785B (en) | 1972-12-26 | 1973-12-24 | OPTICAL SYSTEM FOR REPRODUCTION OF A TRACK RECORDING OF DIF FRACTION |
JP48144176A JPS649654B2 (en) | 1972-12-26 | 1973-12-26 | |
JP1131670A JPH02236827A (en) | 1972-12-26 | 1989-05-26 | Regenerating system for regenerating pulse time modulated wave shape from record track |
JP1131669A JPH0214428A (en) | 1972-12-26 | 1989-05-26 | Reproducing system for reproducing pulse time modulation waveform from recording track |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7230346A FR2197495A5 (en) | 1972-08-25 | 1972-08-25 | |
FR7246189A FR2212070A6 (en) | 1972-08-25 | 1972-12-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2212070A6 true FR2212070A6 (en) | 1974-07-19 |
Family
ID=26217290
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7246189A Expired FR2212070A6 (en) | 1972-08-25 | 1972-12-26 |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2342906C2 (en) |
FR (1) | FR2212070A6 (en) |
GB (1) | GB1461590A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2353107A1 (en) * | 1976-05-28 | 1977-12-23 | Rca Corp | SURFACE FAULT DETECTION SYSTEM, ESPECIALLY OF THE SURFACE OF A DISC FACE |
US11983023B2 (en) | 2016-08-01 | 2024-05-14 | The Boeing Company | Methods, system and apparatuses for in situ removal of window distortion |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2197495A5 (en) * | 1972-08-25 | 1974-03-22 | Thomson Csf | |
FR2311326A2 (en) * | 1974-01-15 | 1976-12-10 | Thomson Brandt | Optical data reader with focussing appts. - has combined detector for track alignment and data reading |
DE2418195A1 (en) * | 1974-04-13 | 1975-11-06 | Bosch Gmbh Robert | METHOD FOR GUIDING A BEAM OF LIGHT ON A SIGNAL TRACK |
NL7413162A (en) * | 1974-10-07 | 1976-04-09 | Philips Nv | DEVICE FOR READING A DISK-SHAPED RECORDING CARRIER. |
NL182990C (en) * | 1975-07-07 | 1988-06-16 | Philips Nv | DEVICE FOR READING A RADIATION-REFLECTING RECORD CARRIER. |
FR2325987A1 (en) * | 1975-09-29 | 1977-04-22 | Thomson Brandt | OPTICAL READING DEVICE FOR A RECORDING |
JPS5263793A (en) * | 1975-11-21 | 1977-05-26 | Pioneer Electronic Corp | Optical signal reader |
JPS5398802A (en) * | 1977-02-09 | 1978-08-29 | Mitsubishi Electric Corp | Optical reproducer |
AU520835B2 (en) * | 1977-03-24 | 1982-03-04 | World Development Laboratories | Optical recording system and method |
JPS57111837A (en) * | 1980-12-27 | 1982-07-12 | Olympus Optical Co Ltd | Signal detecting system of optical information reader |
JPS58125242A (en) * | 1982-01-22 | 1983-07-26 | Victor Co Of Japan Ltd | Tracking error detecting system of optical information signal reproducing device |
DE3827541A1 (en) * | 1988-08-13 | 1990-02-15 | Mtu Muenchen Gmbh | Method for the automatic read-out of binary encoded information |
US5396477A (en) * | 1988-09-21 | 1995-03-07 | Hitachi, Ltd. | Light spot positioning method and optical disc memory apparatus employing the same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3283310A (en) * | 1959-08-21 | 1966-11-01 | Gen Electric | Thermoplastic film tape recorder |
US3381086A (en) * | 1962-08-16 | 1968-04-30 | Minnesota Mining & Mfg | Reproduction of television signals from photographic disc recordings |
US3530258A (en) * | 1968-06-28 | 1970-09-22 | Mca Technology Inc | Video signal transducer having servo controlled flexible fiber optic track centering |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1185233B (en) * | 1962-09-28 | 1965-01-14 | Siemens Ag | Optical-electronic converter for deriving electrical signals from stored information associated with thickness differences of a deformable, preferably thermoplastic, storage medium |
US3287563A (en) * | 1962-11-07 | 1966-11-22 | Minnesota Mining & Mfg | Spatial coherent reproducing system |
US3262122A (en) * | 1963-05-01 | 1966-07-19 | Ibm | Thermoplastic memory |
US3391247A (en) * | 1964-01-03 | 1968-07-02 | Minnesota Mining & Mfg | Television signal recording with sampled audio recorded during horizontal intervals |
DE1277344B (en) * | 1964-07-06 | 1968-09-12 | Siemens Ag | Procedure for information storage and memory storage for carrying out the procedure |
US3430966A (en) * | 1967-04-03 | 1969-03-04 | Gauss Electrophysics Inc | Transparent recording disc |
US3638185A (en) * | 1969-03-17 | 1972-01-25 | Precision Instr Co | High-density permanent data storage and retrieval system |
US3654624A (en) * | 1969-03-17 | 1972-04-04 | Precision Instr Co | Laser recording system using drum mounted record strips |
DE1922464C3 (en) * | 1969-04-30 | 1973-10-25 | Ted Bildplatten Ag Aeg-Telefunkenteldec, Zug (Schweiz) | Device for reflection scanning of a carrier provided with grooves |
DE2031515C3 (en) * | 1970-06-25 | 1982-04-15 | Siemens AG, 1000 Berlin und 8000 München | Procedure for reading out information |
-
1972
- 1972-12-26 FR FR7246189A patent/FR2212070A6/fr not_active Expired
-
1973
- 1973-08-24 DE DE19732342906 patent/DE2342906C2/en not_active Expired
- 1973-12-20 GB GB5904273A patent/GB1461590A/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3283310A (en) * | 1959-08-21 | 1966-11-01 | Gen Electric | Thermoplastic film tape recorder |
US3328776A (en) * | 1959-08-21 | 1967-06-27 | Gen Electric | Thermoplastic film tape recorder |
US3381086A (en) * | 1962-08-16 | 1968-04-30 | Minnesota Mining & Mfg | Reproduction of television signals from photographic disc recordings |
US3530258A (en) * | 1968-06-28 | 1970-09-22 | Mca Technology Inc | Video signal transducer having servo controlled flexible fiber optic track centering |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2353107A1 (en) * | 1976-05-28 | 1977-12-23 | Rca Corp | SURFACE FAULT DETECTION SYSTEM, ESPECIALLY OF THE SURFACE OF A DISC FACE |
US11983023B2 (en) | 2016-08-01 | 2024-05-14 | The Boeing Company | Methods, system and apparatuses for in situ removal of window distortion |
Also Published As
Publication number | Publication date |
---|---|
DE2342906C2 (en) | 1990-10-25 |
DE2342906A1 (en) | 1974-03-07 |
GB1461590A (en) | 1977-01-13 |