GB1434272A - Erasable system for the optical storage of data - Google Patents
Erasable system for the optical storage of dataInfo
- Publication number
- GB1434272A GB1434272A GB3625673A GB3625673A GB1434272A GB 1434272 A GB1434272 A GB 1434272A GB 3625673 A GB3625673 A GB 3625673A GB 3625673 A GB3625673 A GB 3625673A GB 1434272 A GB1434272 A GB 1434272A
- Authority
- GB
- United Kingdom
- Prior art keywords
- photo
- conductive
- data
- thermoplastic
- film
- 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.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 title abstract 2
- 229920001169 thermoplastic Polymers 0.000 abstract 4
- 239000004416 thermosoftening plastic Substances 0.000 abstract 4
- 238000010438 heat treatment Methods 0.000 abstract 3
- 239000000758 substrate Substances 0.000 abstract 2
- QCUOBSQYDGUHHT-UHFFFAOYSA-L cadmium sulfate Chemical compound [Cd+2].[O-]S([O-])(=O)=O QCUOBSQYDGUHHT-UHFFFAOYSA-L 0.000 abstract 1
- 239000004020 conductor Substances 0.000 abstract 1
- 238000013500 data storage Methods 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 238000003303 reheating Methods 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
- 239000012815 thermoplastic material Substances 0.000 abstract 1
Classifications
-
- 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
- G11C13/046—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 using other storage elements storing information in the form of an interference pattern
-
- 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
Landscapes
- Holo Graphy (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Optical Recording Or Reproduction (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7227709A FR2195033B1 (cg-RX-API-DMAC10.html) | 1972-08-01 | 1972-08-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1434272A true GB1434272A (en) | 1976-05-05 |
Family
ID=9102688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3625673A Expired GB1434272A (en) | 1972-08-01 | 1973-07-30 | Erasable system for the optical storage of data |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3878515A (cg-RX-API-DMAC10.html) |
| JP (1) | JPS5030437A (cg-RX-API-DMAC10.html) |
| DE (1) | DE2339021A1 (cg-RX-API-DMAC10.html) |
| FR (1) | FR2195033B1 (cg-RX-API-DMAC10.html) |
| GB (1) | GB1434272A (cg-RX-API-DMAC10.html) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4757472A (en) * | 1986-12-31 | 1988-07-12 | Tecon Memory, Inc. | Electrophotographic optical memory system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2743430A (en) * | 1952-03-01 | 1956-04-24 | Rca Corp | Information storage devices |
| NL236209A (cg-RX-API-DMAC10.html) * | 1958-02-17 | |||
| NL247499A (nl) * | 1959-03-27 | 1964-02-10 | Ncr Co | Geheugenmatrix met ferro-electrische geheugenelementen |
| US3560205A (en) * | 1966-01-20 | 1971-02-02 | Xerox Corp | Method of forming a phase modulating hologram on a deformable thermoplastic |
| US3486031A (en) * | 1967-06-05 | 1969-12-23 | Bell Telephone Labor Inc | Memory cell utilizing optical read-in |
| US3530442A (en) * | 1968-10-09 | 1970-09-22 | Bell Telephone Labor Inc | Hologram memory |
| US3631411A (en) * | 1969-10-15 | 1971-12-28 | Rca Corp | Electrically and optically accessible memory |
-
1972
- 1972-08-01 FR FR7227709A patent/FR2195033B1/fr not_active Expired
-
1973
- 1973-07-27 US US383197A patent/US3878515A/en not_active Expired - Lifetime
- 1973-07-30 GB GB3625673A patent/GB1434272A/en not_active Expired
- 1973-08-01 DE DE2339021A patent/DE2339021A1/de active Pending
- 1973-08-01 JP JP48085921A patent/JPS5030437A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2195033A1 (cg-RX-API-DMAC10.html) | 1974-03-01 |
| US3878515A (en) | 1975-04-15 |
| JPS5030437A (cg-RX-API-DMAC10.html) | 1975-03-26 |
| DE2339021A1 (de) | 1974-02-14 |
| FR2195033B1 (cg-RX-API-DMAC10.html) | 1976-10-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |