FR2241105B1 - - Google Patents
Info
- Publication number
- FR2241105B1 FR2241105B1 FR7426943A FR7426943A FR2241105B1 FR 2241105 B1 FR2241105 B1 FR 2241105B1 FR 7426943 A FR7426943 A FR 7426943A FR 7426943 A FR7426943 A FR 7426943A FR 2241105 B1 FR2241105 B1 FR 2241105B1
- 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
-
- 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
- G11B7/0045—Recording
-
- 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
- G11B7/0065—Recording, reproducing or erasing by using optical interference patterns, e.g. holograms
-
- 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
-
- 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
- G11C13/042—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 information stored in the form of interference pattern
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Holo Graphy (AREA)
- Optical Recording Or Reproduction (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732341140 DE2341140A1 (de) | 1973-08-14 | 1973-08-14 | Anordnung zur sequentiellen datenspeicherung |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2241105A1 FR2241105A1 (fr) | 1975-03-14 |
FR2241105B1 true FR2241105B1 (fr) | 1977-10-14 |
Family
ID=5889750
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7426943A Expired FR2241105B1 (fr) | 1973-08-14 | 1974-08-02 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3936140A (fr) |
JP (1) | JPS5051348A (fr) |
DE (1) | DE2341140A1 (fr) |
FR (1) | FR2241105B1 (fr) |
GB (1) | GB1479922A (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4175823A (en) * | 1973-11-07 | 1979-11-27 | Siemens Aktiengesellschaft | Process for holographic recording of data in the form of electrical signals |
US4458345A (en) * | 1982-03-31 | 1984-07-03 | International Business Machines Corporation | Process for optical information storage |
US5007690A (en) * | 1989-03-21 | 1991-04-16 | Hughes Aircraft Company | Holographic data storage and retrieval system |
US5669855A (en) * | 1996-04-17 | 1997-09-23 | Soft Play, L.L.C. | Vertically movable recreational equipment device |
US5690584A (en) * | 1996-04-17 | 1997-11-25 | Soft Play, L.L.C. | Multi-directional movable recreational equipment device |
US5692993A (en) * | 1996-04-17 | 1997-12-02 | Soft Play, L.L.C. | Laterally movable recreational equipment device |
US5683301A (en) * | 1996-04-17 | 1997-11-04 | Soft Play, L.L.C. | Movable occupant directed recreational equipment device |
USD381386S (en) * | 1996-06-05 | 1997-07-22 | Soft Play, L.L.C. | Recreational equipment device |
US5695407A (en) * | 1996-07-26 | 1997-12-09 | Soft Play, L.L.C. | Movable rocking-type recreational equipment device |
US5793504A (en) * | 1996-08-07 | 1998-08-11 | Northrop Grumman Corporation | Hybrid angular/spatial holographic multiplexer |
US5894465A (en) * | 1997-01-07 | 1999-04-13 | Rrad-Rite Corporation | Transmissive data storage media and an optical head using holographic or acousto-optical deflection |
US6512606B1 (en) * | 1999-07-29 | 2003-01-28 | Siros Technologies, Inc. | Optical storage media and method for optical data storage via local changes in reflectivity of a format grating |
US6322931B1 (en) | 1999-07-29 | 2001-11-27 | Siros Technologies, Inc. | Method and apparatus for optical data storage using non-linear heating by excited state absorption for the alteration of pre-formatted holographic gratings |
US6807138B1 (en) | 2000-11-01 | 2004-10-19 | John M. Jamail | Light drive |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3776995A (en) * | 1970-10-15 | 1973-12-04 | Xerox Corp | Method of producing x-ray diffraction grating |
-
1973
- 1973-08-14 DE DE19732341140 patent/DE2341140A1/de not_active Ceased
-
1974
- 1974-07-31 US US05/493,265 patent/US3936140A/en not_active Expired - Lifetime
- 1974-08-02 FR FR7426943A patent/FR2241105B1/fr not_active Expired
- 1974-08-12 GB GB35353/74A patent/GB1479922A/en not_active Expired
- 1974-08-14 JP JP49093191A patent/JPS5051348A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS5051348A (fr) | 1975-05-08 |
FR2241105A1 (fr) | 1975-03-14 |
US3936140A (en) | 1976-02-03 |
GB1479922A (en) | 1977-07-13 |
DE2341140A1 (de) | 1975-02-20 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |