FR2236243A1 - - Google Patents

Info

Publication number
FR2236243A1
FR2236243A1 FR7422977A FR7422977A FR2236243A1 FR 2236243 A1 FR2236243 A1 FR 2236243A1 FR 7422977 A FR7422977 A FR 7422977A FR 7422977 A FR7422977 A FR 7422977A FR 2236243 A1 FR2236243 A1 FR 2236243A1
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.)
Granted
Application number
FR7422977A
Other versions
FR2236243B1 (fr
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.)
Philips North America LLC
US Philips Corp
Original Assignee
US Philips Corp
North American Philips 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 US Philips Corp, North American Philips Corp filed Critical US Philips Corp
Publication of FR2236243A1 publication Critical patent/FR2236243A1/fr
Application granted granted Critical
Publication of FR2236243B1 publication Critical patent/FR2236243B1/fr
Expired legal-status Critical Current

Links

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
    • G11C13/048—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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
    • G11C11/34—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
    • G11C11/40—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors
    • G11C11/401—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells
    • G11C11/403—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells with charge regeneration common to a multiplicity of memory cells, i.e. external refresh
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Holo Graphy (AREA)
FR7422977A 1973-07-02 1974-07-02 Expired FR2236243B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US375785A US3866187A (en) 1973-07-02 1973-07-02 Method of recording and reproducing information in ferroelastic metals

Publications (2)

Publication Number Publication Date
FR2236243A1 true FR2236243A1 (fr) 1975-01-31
FR2236243B1 FR2236243B1 (fr) 1981-09-04

Family

ID=23482327

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7422977A Expired FR2236243B1 (fr) 1973-07-02 1974-07-02

Country Status (8)

Country Link
US (1) US3866187A (fr)
JP (1) JPS5411222B2 (fr)
DE (1) DE2431074C2 (fr)
FR (1) FR2236243B1 (fr)
GB (1) GB1474199A (fr)
IT (1) IT1015634B (fr)
NL (1) NL176613C (fr)
SE (1) SE399145B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0033046B1 (fr) * 1980-01-23 1984-08-08 Thomson-Csf Procédé d'inscription thermo-optique d'information et support d'information destiné à la mise en oeuvre de ce procédé

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4264986A (en) * 1979-03-12 1981-04-28 Willis Craig I Information-recording process & apparatus
FR2475271A1 (fr) * 1980-02-01 1981-08-07 Thomson Csf Structure de memoire permanente, a inscription thermo-optique et lecture optique, et procede d'inscription dans une telle structure
FR2475270A1 (fr) * 1980-02-01 1981-08-07 Thomson Csf Structure de memoire reversible, a inscription thermo-optique et lecture optique, et procede d'inscription et d'effacement de cette structure
US4430659A (en) * 1981-02-13 1984-02-07 Minnesota Mining And Manufacturing Company Protuberant optical recording medium
EP0089168B1 (fr) * 1982-03-15 1986-07-23 Kabushiki Kaisha Toshiba Support d'enregistrement d'information par voie optique
US5592645A (en) * 1988-12-22 1997-01-07 Framdrive Ferroelectric storage device emulating a rotating disk drive unit in a computer system and having a frequency modulated (FM) data interface
US5592646A (en) * 1988-12-22 1997-01-07 Framdrive Ferroelectric storage device emulating a rotating disk drive unit in a computer system and having a parallel and multiplexed optical data interface
US5592644A (en) * 1988-12-22 1997-01-07 Framdrive Ferroelectric storage device emulating a rotating disk drive unit in a computer system and having an optical data interface
US5592642A (en) * 1988-12-22 1997-01-07 Framdrive Ferroelectric storage device emulating a rotating disk drive unit in a computer system and having an optical and parallel data interface
US5592643A (en) * 1988-12-22 1997-01-07 Framdrive Ferroelectric storage device emulating a rotating disk drive unit in acomputer system and having a parallel data interface
US5604881A (en) * 1988-12-22 1997-02-18 Framdrive Ferroelectric storage device emulating a rotating disk drive unit in a computer system and having a multiplexed optical data interface
US5359726A (en) * 1988-12-22 1994-10-25 Thomas Michael E Ferroelectric storage device used in place of a rotating disk drive unit in a computer system
GB9816799D0 (en) 1998-08-03 1998-09-30 Anson Anthony W A means of writing,storing and retrieving binary information
TW571291B (en) * 2001-01-31 2004-01-11 Ibm Mechanical data processing

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1891780A (en) * 1928-12-20 1932-12-20 Robert E Rutherford Method of and apparatus for recording and reproducing electrical impulses
US3040124A (en) * 1956-06-25 1962-06-19 Armour Res Found Transducer head system
FR84703E (fr) * 1958-08-25 1965-07-12
US3406405A (en) * 1961-07-06 1968-10-15 Gen Electric Thermal modulation thermoplastic recording
CA967365A (en) * 1970-10-12 1975-05-13 Fuji Photo Film Co. Laser recording method and material therefor
AU3435871A (en) * 1970-10-27 1973-04-12 Rca Corp Sound record producing system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0033046B1 (fr) * 1980-01-23 1984-08-08 Thomson-Csf Procédé d'inscription thermo-optique d'information et support d'information destiné à la mise en oeuvre de ce procédé

Also Published As

Publication number Publication date
JPS5071238A (fr) 1975-06-13
JPS5411222B2 (fr) 1979-05-12
GB1474199A (en) 1977-05-18
NL7408741A (nl) 1975-01-06
US3866187A (en) 1975-02-11
DE2431074C2 (de) 1982-11-04
NL176613B (nl) 1984-12-03
NL176613C (nl) 1985-05-01
IT1015634B (it) 1977-05-20
FR2236243B1 (fr) 1981-09-04
SE399145B (sv) 1978-01-30
SE7408616L (fr) 1975-01-03
DE2431074A1 (de) 1975-01-23

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Legal Events

Date Code Title Description
ST Notification of lapse