GB789096A - Drive current generator for memory arrays - Google Patents

Drive current generator for memory arrays

Info

Publication number
GB789096A
GB789096A GB19065/55A GB1906555A GB789096A GB 789096 A GB789096 A GB 789096A GB 19065/55 A GB19065/55 A GB 19065/55A GB 1906555 A GB1906555 A GB 1906555A GB 789096 A GB789096 A GB 789096A
Authority
GB
United Kingdom
Prior art keywords
core
memory
windings
write
binary
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
Application number
GB19065/55A
Other languages
English (en)
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB789096A publication Critical patent/GB789096A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G11C11/02—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements
    • G11C11/06—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using single-aperture storage elements, e.g. ring core; using multi-aperture plates in which each individual aperture forms a storage element
    • G11C11/06007—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using single-aperture storage elements, e.g. ring core; using multi-aperture plates in which each individual aperture forms a storage element using a single aperture or single magnetic closed circuit
    • G11C11/06014—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using single-aperture storage elements, e.g. ring core; using multi-aperture plates in which each individual aperture forms a storage element using a single aperture or single magnetic closed circuit using one such element per bit
    • G11C11/06021—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using single-aperture storage elements, e.g. ring core; using multi-aperture plates in which each individual aperture forms a storage element using a single aperture or single magnetic closed circuit using one such element per bit with destructive read-out
    • G11C11/06028—Matrixes
    • G11C11/06035—Bit core selection for writing or reading, by at least two coincident partial currents, e.g. "bit"- organised, 2L/2D, or 3D

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Digital Magnetic Recording (AREA)
  • Coils Or Transformers For Communication (AREA)
GB19065/55A 1954-07-02 1955-07-01 Drive current generator for memory arrays Expired GB789096A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US440983A US2902677A (en) 1954-07-02 1954-07-02 Magnetic core current driver

Publications (1)

Publication Number Publication Date
GB789096A true GB789096A (en) 1958-01-15

Family

ID=23751012

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19065/55A Expired GB789096A (en) 1954-07-02 1955-07-01 Drive current generator for memory arrays

Country Status (5)

Country Link
US (1) US2902677A (US20030220297A1-20031127-C00009.png)
DE (1) DE1038315B (US20030220297A1-20031127-C00009.png)
FR (1) FR1152066A (US20030220297A1-20031127-C00009.png)
GB (1) GB789096A (US20030220297A1-20031127-C00009.png)
NL (1) NL198585A (US20030220297A1-20031127-C00009.png)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL211399A (US20030220297A1-20031127-C00009.png) * 1955-01-14
FR1202827A (fr) * 1956-06-04 1960-01-13 Ibm Dispositif d'espacement variable pour enregistrement xérographique
NL230028A (US20030220297A1-20031127-C00009.png) * 1957-03-21
US3641519A (en) * 1958-04-10 1972-02-08 Sylvania Electric Prod Memory system
US3110017A (en) * 1959-04-13 1963-11-05 Sperry Rand Corp Magnetic core memory
US3238513A (en) * 1959-07-09 1966-03-01 Bunker Ramo Persistent current superconductive circuits
US3068452A (en) * 1959-08-14 1962-12-11 Texas Instruments Inc Memory matrix system
DE1132965B (de) * 1959-08-29 1962-07-12 Standard Elektrik Lorenz Ag Semipermanenter Ferritkern-Speicher und Schaltungsanordnung zur gleichzeitigen Steuerung von semipermanenten Ferritkern-Speichern und Ferritkernspeichern ueblicher Art
NL244502A (US20030220297A1-20031127-C00009.png) * 1959-10-20
GB935366A (US20030220297A1-20031127-C00009.png) * 1959-11-16
US3114133A (en) * 1960-08-15 1963-12-10 Ibm Magnetic core matrix
BE616079A (US20030220297A1-20031127-C00009.png) * 1961-04-07
US3208043A (en) * 1961-04-13 1965-09-21 Ibm Magnetic core matrix switch
US3239810A (en) * 1961-07-26 1966-03-08 Bell Telephone Labor Inc Magnetic core comparator and memory circuit
US3147474A (en) * 1962-01-23 1964-09-01 Sperry Rand Corp Information transformation system
NL301072A (US20030220297A1-20031127-C00009.png) * 1963-01-09
US3395404A (en) * 1964-02-05 1968-07-30 Burroughs Corp Address selection system for memory devices
FR146383A (US20030220297A1-20031127-C00009.png) * 1965-02-20
US3496554A (en) * 1965-05-12 1970-02-17 Burroughs Corp Method and apparatus for clearing a magnet memory
US3423739A (en) * 1965-08-16 1969-01-21 Sperry Rand Corp Nondestructive read memory selection system
US3508218A (en) * 1967-01-13 1970-04-21 Ibm 2 1/4 d memory
US3500360A (en) * 1967-03-13 1970-03-10 Rca Corp Random-access memory organization
US9998114B2 (en) 2013-10-31 2018-06-12 Honeywell International Inc. Matrix ferrite driver circuit
US9871511B2 (en) * 2014-07-01 2018-01-16 Honeywell International Inc. Protection switching for matrix of ferrite modules with redundant control

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2708722A (en) * 1949-10-21 1955-05-17 Wang An Pulse transfer controlling device
US2734182A (en) * 1952-03-08 1956-02-07 rajchman
US2691154A (en) * 1952-03-08 1954-10-05 Rca Corp Magnetic information handling system
US2691155A (en) * 1953-02-20 1954-10-05 Rca Corp Memory system
US2776419A (en) * 1953-03-26 1957-01-01 Rca Corp Magnetic memory system

Also Published As

Publication number Publication date
US2902677A (en) 1959-09-01
NL198585A (US20030220297A1-20031127-C00009.png)
FR1152066A (fr) 1958-02-11
DE1038315B (de) 1958-09-04

Similar Documents

Publication Publication Date Title
GB789096A (en) Drive current generator for memory arrays
GB753025A (en) Magnetic switching devices
GB753272A (en) Magnetic memory reading system
GB845431A (en) Improvements in magnetic core memory devices
US2914754A (en) Memory system
US3283313A (en) Thin film magnetic register
GB824973A (en) Electrostatic recording and reproducing apparatus
US3069086A (en) Matrix switching and computing systems
US3191163A (en) Magnetic memory noise reduction system
GB871714A (en) Information storage device
GB903094A (en) Improvements relating to binary magnetic storage devices of the matrix type
GB914513A (en) Improvements in and relating to control switches employing magnetic core devices
GB1459208A (en) Load selection and current switching system
GB881881A (en) Improvements in or relating to electronic computing machines
GB884385A (en) Digital information memory system
US3251044A (en) Magnetic storage device
US3488641A (en) Coincident current read only memory using linear magnetic elements
GB893351A (en) Improvements relating to data storage devices
US3128452A (en) Magnetic storage circuits
US3513454A (en) Method of operating magnetic core memories to compensate for temperature variations
GB895835A (en) Improvements in or relating to digital information storage systems
US3223984A (en) Magnetic core memory
GB1006856A (en) Improvements in digital magnetic element data stores
US3038148A (en) Apparatus for increasing the storage capacity of a magnetic drum
GB991713A (en) Improved magnetic core storage apparatus