DE2516550A1 - Worterkennungsverfahren und -einrichtung fuer assoziative optische speicher - Google Patents
Worterkennungsverfahren und -einrichtung fuer assoziative optische speicherInfo
- Publication number
- DE2516550A1 DE2516550A1 DE19752516550 DE2516550A DE2516550A1 DE 2516550 A1 DE2516550 A1 DE 2516550A1 DE 19752516550 DE19752516550 DE 19752516550 DE 2516550 A DE2516550 A DE 2516550A DE 2516550 A1 DE2516550 A1 DE 2516550A1
- Authority
- DE
- Germany
- Prior art keywords
- value
- bits
- keyword
- same
- words
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 19
- 230000003287 optical effect Effects 0.000 title claims description 14
- 230000015654 memory Effects 0.000 claims description 43
- 239000011159 matrix material Substances 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 13
- 230000000295 complement effect Effects 0.000 claims description 6
- 238000012886 linear function Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 230000006870 function Effects 0.000 claims description 3
- 238000005286 illumination Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 230000005693 optoelectronics Effects 0.000 claims 1
- 230000001427 coherent effect Effects 0.000 description 5
- 238000002834 transmittance Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910021532 Calcite Inorganic materials 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 230000005697 Pockels effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000001093 holography Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 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
-
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C15/00—Digital stores in which information comprising one or more characteristic parts is written into the store and in which information is read-out by searching for one or more of these characteristic parts, i.e. associative or content-addressed stores
Landscapes
- Holo Graphy (AREA)
- Character Input (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7413204A FR2268329B1 (OSRAM) | 1974-04-16 | 1974-04-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2516550A1 true DE2516550A1 (de) | 1975-10-30 |
Family
ID=9137672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19752516550 Pending DE2516550A1 (de) | 1974-04-16 | 1975-04-16 | Worterkennungsverfahren und -einrichtung fuer assoziative optische speicher |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3991401A (OSRAM) |
| JP (1) | JPS50140025A (OSRAM) |
| DE (1) | DE2516550A1 (OSRAM) |
| FR (1) | FR2268329B1 (OSRAM) |
| GB (1) | GB1513422A (OSRAM) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3614191A (en) * | 1968-03-29 | 1971-10-19 | Nippon Electric Co | Associative memory employing holography |
| US3706080A (en) * | 1971-06-01 | 1972-12-12 | Honeywell Inc | Holographic optical memory having pivot lens apparatus |
| US3781830A (en) * | 1972-06-23 | 1973-12-25 | Rca Corp | Holographic memory with light intensity compensation means |
| IT959979B (it) * | 1972-06-28 | 1973-11-10 | Honeywell Inf Systems | Memoria associativa ottica |
-
1974
- 1974-04-16 FR FR7413204A patent/FR2268329B1/fr not_active Expired
-
1975
- 1975-04-11 US US05/567,405 patent/US3991401A/en not_active Expired - Lifetime
- 1975-04-15 GB GB15531/75A patent/GB1513422A/en not_active Expired
- 1975-04-16 DE DE19752516550 patent/DE2516550A1/de active Pending
- 1975-04-16 JP JP50046297A patent/JPS50140025A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2268329A1 (OSRAM) | 1975-11-14 |
| JPS50140025A (OSRAM) | 1975-11-10 |
| FR2268329B1 (OSRAM) | 1978-12-29 |
| US3991401A (en) | 1976-11-09 |
| GB1513422A (en) | 1978-06-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHN | Withdrawal |