FR2202335B1 - - Google Patents
Info
- Publication number
- FR2202335B1 FR2202335B1 FR7335867A FR7335867A FR2202335B1 FR 2202335 B1 FR2202335 B1 FR 2202335B1 FR 7335867 A FR7335867 A FR 7335867A FR 7335867 A FR7335867 A FR 7335867A FR 2202335 B1 FR2202335 B1 FR 2202335B1
- 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
- G11B7/004—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
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10130972A JPS515954B2 (US07655688-20100202-C00086.png) | 1972-10-09 | 1972-10-09 | |
| JP47106926A JPS5119995B2 (US07655688-20100202-C00086.png) | 1972-10-24 | 1972-10-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2202335A1 FR2202335A1 (US07655688-20100202-C00086.png) | 1974-05-03 |
| FR2202335B1 true FR2202335B1 (US07655688-20100202-C00086.png) | 1976-06-18 |
Family
ID=26442201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7335867A Expired FR2202335B1 (US07655688-20100202-C00086.png) | 1972-10-09 | 1973-10-08 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3903360A (US07655688-20100202-C00086.png) |
| CA (1) | CA997950A (US07655688-20100202-C00086.png) |
| FR (1) | FR2202335B1 (US07655688-20100202-C00086.png) |
| GB (1) | GB1437988A (US07655688-20100202-C00086.png) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4011416A (en) * | 1974-08-26 | 1977-03-08 | Western Geophysical Company Of America | Multiple color light frequencies switched audio modulation |
| JPS5827891B2 (ja) * | 1976-09-14 | 1983-06-13 | 日本ビクター株式会社 | レ−ザ光束の安定化装置 |
| US4235531A (en) * | 1979-02-05 | 1980-11-25 | Mccormick Thomas J | Color movie film noise reduction system |
| US4420829A (en) * | 1981-01-08 | 1983-12-13 | Carlson John E | Holographic system for the storage of audio, video and computer data |
| US4847707A (en) * | 1985-11-08 | 1989-07-11 | Canon Kabushiki Kaisha | Rotary head type reproducing apparatus with crosstalk reduction |
| US5003528A (en) * | 1988-09-09 | 1991-03-26 | The United States Of America As Represented By The Secretary Of The Air Force | Photorefractive, erasable, compact laser disk |
| ATE189535T1 (de) | 1992-11-27 | 2000-02-15 | Voxel | Verfahren und vorrichtung zur herstellung von hologrammen |
| US6322933B1 (en) * | 1999-01-12 | 2001-11-27 | Siros Technologies, Inc. | Volumetric track definition for data storage media used to record data by selective alteration of a format hologram |
| 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 |
| US6310850B1 (en) | 1999-07-29 | 2001-10-30 | Siros Technologies, Inc. | Method and apparatus for optical data storage and/or retrieval by selective alteration of a holographic storage medium |
| 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 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2527463A (en) * | 1946-03-29 | 1950-10-24 | Rca Corp | Multicolored record and reproducing system therefor |
| US3513268A (en) * | 1966-08-30 | 1970-05-19 | Bell & Howell Co | Optical recording and reproducing systems including noise reducing means |
| US3407272A (en) * | 1966-09-07 | 1968-10-22 | Instr Corp Of America | Photographic sound system for eliminating film blemish noise |
| US3502888A (en) * | 1967-07-19 | 1970-03-24 | Sylvania Electric Prod | Optical retroreflective label reading systems employing polarized electromagnetic radiation |
| US3624286A (en) * | 1969-11-10 | 1971-11-30 | Rca Corp | Noise cancellation in video signal-generating systems |
| JPS4948980B1 (US07655688-20100202-C00086.png) * | 1970-07-17 | 1974-12-24 | ||
| US3706080A (en) * | 1971-06-01 | 1972-12-12 | Honeywell Inc | Holographic optical memory having pivot lens apparatus |
-
1973
- 1973-10-05 US US403818A patent/US3903360A/en not_active Expired - Lifetime
- 1973-10-08 FR FR7335867A patent/FR2202335B1/fr not_active Expired
- 1973-10-09 CA CA182,879A patent/CA997950A/en not_active Expired
- 1973-10-09 GB GB4708273A patent/GB1437988A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2350204B2 (de) | 1975-10-16 |
| DE2350204A1 (de) | 1974-06-27 |
| CA997950A (en) | 1976-10-05 |
| FR2202335A1 (US07655688-20100202-C00086.png) | 1974-05-03 |
| US3903360A (en) | 1975-09-02 |
| GB1437988A (US07655688-20100202-C00086.png) | 1976-06-03 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |