GB842713A - Improvements in magnetic core storage devices - Google Patents

Improvements in magnetic core storage devices

Info

Publication number
GB842713A
GB842713A GB2599656A GB2599656A GB842713A GB 842713 A GB842713 A GB 842713A GB 2599656 A GB2599656 A GB 2599656A GB 2599656 A GB2599656 A GB 2599656A GB 842713 A GB842713 A GB 842713A
Authority
GB
United Kingdom
Prior art keywords
core
battery
switch
winding
windings
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
GB2599656A
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
Priority claimed from US383568A external-priority patent/US2902676A/en
Priority claimed from US530524A external-priority patent/US2991455A/en
Priority claimed from US530522A external-priority patent/US2842755A/en
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB842713A publication Critical patent/GB842713A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/80—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using non-linear magnetic devices; using non-linear dielectric devices
    • H03K17/82—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using non-linear magnetic devices; using non-linear dielectric devices the devices being transfluxors
    • 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
    • G11C11/08—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using multi-aperture storage elements, e.g. using transfluxors; using plates incorporating several individual multi-aperture storage elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/08—Cores, Yokes, or armatures made from powder
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/45—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of non-linear magnetic or dielectric devices
    • H03K3/51—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of non-linear magnetic or dielectric devices the devices being multi-aperture magnetic cores, e.g. transfluxors

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Measuring Leads Or Probes (AREA)

Abstract

842,713. Circuits employing bi-stable magnetic elements. INTERNATIONAL BUSINESS MACHINES CORPORATION. Aug. 24, 1956 [Aug. 25, 1955], No. 25996/56. Class 40 (9). [Also in Group XXXV] The intensity of the remanent flux in a magnetic storage core 5 is the analogue of the pulse signal applied to input winding 7. The record is read in a non-destructive manner described in Specification 789,668. The voltage in output winding 9 constitutes a measure of the stored signal and may be used to control a voltage indicator 19 such as an oscilloscope. In Fig. 1, the input signal is provided by a battery 15, a rheostat 17 and a switch SW1. In Fig. 2 a constant battery 15 is switched to energize any one of three windings 7a, 7b, 7c, which embrace different proportions of the crosssection of the core. The battery is sufficient to saturate the part of the core linked with any winding to which it is connected. The core can thus be set to any one of three discrete stable states by means of the switch SSW. The windings may be used in combination to produce further states. In each embodiment, a battery 21 and a switch SW2 is used to reset the core before a storage operation.
GB2599656A 1953-10-01 1956-08-24 Improvements in magnetic core storage devices Expired GB842713A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US383568A US2902676A (en) 1953-10-01 1953-10-01 Non-destructive sensing of magnetic cores
US530524A US2991455A (en) 1955-08-25 1955-08-25 Magnetic core logical devices
US530522A US2842755A (en) 1955-08-25 1955-08-25 Ternary magnetic storage device

Publications (1)

Publication Number Publication Date
GB842713A true GB842713A (en) 1960-07-27

Family

ID=27409627

Family Applications (5)

Application Number Title Priority Date Filing Date
GB2795854A Expired GB789668A (en) 1953-10-01 1954-09-28 Improvements in or relating to magnetic storage devices
GB2599456A Expired GB841426A (en) 1953-10-01 1956-08-24 Improvements in magnetic core devices
GB260260A Expired GB842349A (en) 1953-10-01 1956-08-24 Improved sampling winding for magnetic cores
GB2599556A Expired GB835026A (en) 1953-10-01 1956-08-24 Improvements in magnetic core storage devices
GB2599656A Expired GB842713A (en) 1953-10-01 1956-08-24 Improvements in magnetic core storage devices

Family Applications Before (4)

Application Number Title Priority Date Filing Date
GB2795854A Expired GB789668A (en) 1953-10-01 1954-09-28 Improvements in or relating to magnetic storage devices
GB2599456A Expired GB841426A (en) 1953-10-01 1956-08-24 Improvements in magnetic core devices
GB260260A Expired GB842349A (en) 1953-10-01 1956-08-24 Improved sampling winding for magnetic cores
GB2599556A Expired GB835026A (en) 1953-10-01 1956-08-24 Improvements in magnetic core storage devices

Country Status (4)

Country Link
DE (1) DE1034686B (en)
FR (1) FR1114424A (en)
GB (5) GB789668A (en)
NL (6) NL190977A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1138564B (en) * 1957-11-25 1962-10-25 Burroughs Corp Shift register with transfluxors
DE1108492B (en) * 1957-11-28 1961-06-08 Siemens Ag Circuit arrangement with one or more magnetic counter elements for pulses which can be queried without loss of information
DE1146532B (en) * 1960-02-06 1963-04-04 Standard Elektrik Lorenz Ag Circuit arrangement for determining the polarity of a marking pulse stored in a ferrite core memory

Also Published As

Publication number Publication date
NL111645C (en)
NL209389A (en)
NL190977A (en)
DE1034686B (en) 1958-07-24
GB835026A (en) 1960-05-18
GB842349A (en) 1960-07-27
NL93869C (en)
NL210080A (en)
GB841426A (en) 1960-07-13
NL108221C (en)
GB789668A (en) 1958-01-29
FR1114424A (en) 1956-04-12

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