GB789668A - Improvements in or relating to magnetic storage devices - Google Patents

Improvements in or relating to magnetic storage devices

Info

Publication number
GB789668A
GB789668A GB2795854A GB2795854A GB789668A GB 789668 A GB789668 A GB 789668A GB 2795854 A GB2795854 A GB 2795854A GB 2795854 A GB2795854 A GB 2795854A GB 789668 A GB789668 A GB 789668A
Authority
GB
United Kingdom
Prior art keywords
core
winding
sensing
pulse
magnetic storage
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
GB2795854A
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
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Priority claimed from US530524A external-priority patent/US2991455A/en
Priority claimed from US530522A external-priority patent/US2842755A/en
Publication of GB789668A publication Critical patent/GB789668A/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

789,668. Magnetic storage devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 28, 1954 [Oct. 1, 1953], No. 27958/54. Class 38 (2). [Also in Group XXXIX] For non-destructive reading a sensing winding 13 is linked with only a part of the magnetic storage core. In Fig. 2 the winding 13 is passed through two holes 14 in the core. A pulse in the winding 13 produces an auxiliary flux which disturbs the main flux and produces a voltage pulse in the output winding 12. The sign of the output pulse is independent of the sign of the sensing pulse but depends upon the direction of the main flux in the core. The sensing winding may be fed with alternating current the state of the core being indicated by the phase of the output. If the alternating current is of sawtooth waveform a substantial voltage is produced in only one direction which is dependent upon the direction of the main flux in the core. If the holes are arranged so that winding 13 is not linked with the main flux in the core, pulses in the input winding 11 will not affect the sensing winding 13. In a modification, Fig. 3, the sensing winding 23 is linked with part of the core between a hole 24 and the outer periphery of the core. Specification 749,796, [Group XXXIX], is referred to.
GB2795854A 1953-10-01 1954-09-28 Improvements in or relating to magnetic storage devices Expired GB789668A (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
GB789668A true GB789668A (en) 1958-01-29

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
GB2599656A Expired GB842713A (en) 1953-10-01 1956-08-24 Improvements in magnetic core storage 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

Family Applications After (4)

Application Number Title Priority Date Filing Date
GB2599456A Expired GB841426A (en) 1953-10-01 1956-08-24 Improvements in magnetic core devices
GB2599656A Expired GB842713A (en) 1953-10-01 1956-08-24 Improvements in magnetic core storage 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) NL210080A (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
GB842713A (en) 1960-07-27
GB835026A (en) 1960-05-18
NL93869C (en)
FR1114424A (en) 1956-04-12
GB841426A (en) 1960-07-13
NL190977A (en)
DE1034686B (en) 1958-07-24
NL108221C (en)
NL210080A (en)
NL209389A (en)
GB842349A (en) 1960-07-27
NL111645C (en)

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