DE2302974B2 - Datenauffindesystem - Google Patents

Datenauffindesystem

Info

Publication number
DE2302974B2
DE2302974B2 DE19732302974 DE2302974A DE2302974B2 DE 2302974 B2 DE2302974 B2 DE 2302974B2 DE 19732302974 DE19732302974 DE 19732302974 DE 2302974 A DE2302974 A DE 2302974A DE 2302974 B2 DE2302974 B2 DE 2302974B2
Authority
DE
Germany
Prior art keywords
plane
light
predetermined
binary
grating
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.)
Granted
Application number
DE19732302974
Other languages
German (de)
English (en)
Other versions
DE2302974C3 (enExample
DE2302974A1 (de
Inventor
Shigeru Toyonaka; Miyazawa Takayuki Takatsuki; Osaka Ando (Japan)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of DE2302974A1 publication Critical patent/DE2302974A1/de
Publication of DE2302974B2 publication Critical patent/DE2302974B2/de
Application granted granted Critical
Publication of DE2302974C3 publication Critical patent/DE2302974C3/de
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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

  • Holo Graphy (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Optical Recording Or Reproduction (AREA)
DE19732302974 1972-01-20 1973-01-22 Datenauffindesystem Granted DE2302974B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP794372 1972-01-20
JP794372A JPS5332662B2 (enExample) 1972-01-20 1972-01-20

Publications (3)

Publication Number Publication Date
DE2302974A1 DE2302974A1 (de) 1973-07-26
DE2302974B2 true DE2302974B2 (de) 1977-01-13
DE2302974C3 DE2302974C3 (enExample) 1977-09-01

Family

ID=11679571

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19732302974 Granted DE2302974B2 (de) 1972-01-20 1973-01-22 Datenauffindesystem

Country Status (3)

Country Link
US (1) US3841729A (enExample)
JP (1) JPS5332662B2 (enExample)
DE (1) DE2302974B2 (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4163290A (en) * 1974-02-08 1979-07-31 Optical Data System Holographic verification system with indexed memory
GB2161263B (en) * 1984-07-05 1988-03-30 Stc Plc Associative memory systems
GB2196146B (en) * 1986-10-14 1990-07-11 Plessey Co Plc Optical network incorporating holographic data storage and processing
US4988153A (en) * 1989-12-22 1991-01-29 Bell Communications Research, Inc. Holographic memory read by a laser array
EP0627675B1 (de) * 1993-04-16 2001-06-13 Infineon Technologies AG Diffraktive optische Einrichtung zur optischen Abbildung eines Raumpunktes auf andere Raumpunkte

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3312955A (en) * 1963-09-03 1967-04-04 Eastman Kodak Co System for recording and retrieving digital information
US3542448A (en) * 1967-01-13 1970-11-24 Ibm Holographic recording and readout of digital information
US3652162A (en) * 1968-03-14 1972-03-28 Gen Electric Complex data processing system employing incoherent optics

Also Published As

Publication number Publication date
JPS4878851A (enExample) 1973-10-23
DE2302974A1 (de) 1973-07-26
JPS5332662B2 (enExample) 1978-09-09
US3841729A (en) 1974-10-15

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
8339 Ceased/non-payment of the annual fee