GB1105513A - Creation of Inventions and Patents with Artificial Intelligence

GB1105513A – Improvements in or relating to magnetic core devices
– Google Patents

GB1105513A – Improvements in or relating to magnetic core devices
– Google Patents
Improvements in or relating to magnetic core devices

Info

Publication number
GB1105513A

GB1105513A
GB202365A
GB202365A
GB1105513A
GB 1105513 A
GB1105513 A
GB 1105513A
GB 202365 A
GB202365 A
GB 202365A
GB 202365 A
GB202365 A
GB 202365A
GB 1105513 A
GB1105513 A
GB 1105513A
Authority
GB
United Kingdom
Prior art keywords
flux
pulses
conductor
aperture
conductors
Prior art date
1965-01-15
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
GB202365A
Inventor
Bryan William Rickard
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.)

General Electric Co PLC

Original Assignee
General Electric Co PLC
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.)
1965-01-15
Filing date
1965-01-15
Publication date
1968-03-06

1965-01-15
Application filed by General Electric Co PLC
filed
Critical
General Electric Co PLC

1965-01-15
Priority to GB202365A
priority
Critical
patent/GB1105513A/en

1968-03-06
Publication of GB1105513A
publication
Critical
patent/GB1105513A/en

Status
Expired
legal-status
Critical
Current

Links

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Global Dossier

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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

G11C11/08—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

Abstract

1,105,513. Circuits employing bi-stable magnetic elements. GENERAL ELECTRIC CO. Ltd. 17 Jan., 1966 [15 Jan., 1965], No. 2023/65. Heading H3B. [Also in Division H1] In a two-aperture transfluxor the state of the device is interrogated by an interrogate conductor extending through one of the apertures and a reset conductor extending through both apertures in opposite directions, both conductors being arranged to, carry unidirectional current and the setting conductor constitutes the sense conductor. The basic device is as shown in Fig. 1 and in operation the core is first placed in a blocked state indicative of a binary ” 0 ” and having a flux pattern as shown by current through winding 7. The core is then placed in a set state, Fig. 2 (not shown), indicative of a binary ” ” by simultaneously applying half set pulses to windings 8, 9 which pulses partially reverse flux round aperture 2 so that the flux relative to aperture 3 is in opposite directions. A subsequent pulse on reset conductor 13 reverses the flux around aperture 3, Fig. 3 (not shown), and produces a kidney-shaped flux pattern around aperture 2. This reversal of flux produces an output signal in select conductor 9. The next pulse on interrogate conductor 12 re-establishes the ” set ” flux pattern of Fig. 2. If the core is in its blocked state pulses applied to conductors 12, 13 have no effect on the flux pattern and no output signal is induced in winding 9. By using correctly polarized unidirectional pulses for the interrogate function the possibility of excessive currents through the read aperture 3 unblocking the core are obviated. In order to remove the possibility of reset pulses disturbing the blocked state the reset winding 13 is wound as shown. Matrix.-Fig. 4 shows one plane of a matrix comprising a plurality of transfluxors, the transfluxors being arranged on edge and at 45 degrees to the edge of the matrix plane. The columns are arranged in groups 14 of eight every transfluxor having the same wiring arrangement as shown in Fig. 1. The block winding 7 and reset winding 13 thread the write apertures of all the transfluxors of a group 14. The windings 9 thread all the 64 transfluxors in a row and by means of edge connections all the corresponding rows in the 16 planes, Fig. 6 (not shown). Any element is selected to store a digit by applying set pulses only to the two set conductors 8, 9 which intersect at that element. Since each column includes 4 words of 20 digits each word and parallel read out is employed only 20 outputs are required the necessary selection is effected in the input stage of each read amplifier. Fig. 5 (not shown) illustrates the vertical connections of the interrogate conductors 12. The read amplifier, Fig. 7, comprises four input stages 25 and each read amplifier corresponds to a particular one of twenty digits and has to select one of four simultaneous signals, one from each word. Each group of four adjacent H. H. S/sense conductors 9 are connected together at one end and to a common input lead 33 of the four stages and the other ends are connected to respective inputs 34 of the four input stages. Both transistors 26, 27 are normally non-conducting and in operation negativegoing strobe pulses are applied sequentially to the four input stages on leads 31 of all twenty read amplifiers in parallel. At the end of the strobe pulse period the change of collector potentials of transistors 26, 27 and their difference on leads 44 indicates the flux switched during interrogation and is produced as a square output pulse on lead 54.

GB202365A
1965-01-15
1965-01-15
Improvements in or relating to magnetic core devices

Expired

GB1105513A
(en)

Priority Applications (1)

Application Number
Priority Date
Filing Date
Title

GB202365A

GB1105513A
(en)

1965-01-15
1965-01-15
Improvements in or relating to magnetic core devices

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

GB202365A

GB1105513A
(en)

1965-01-15
1965-01-15
Improvements in or relating to magnetic core devices

Publications (1)

Publication Number
Publication Date

GB1105513A
true

GB1105513A
(en)

1968-03-06

Family
ID=9732251
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB202365A
Expired

GB1105513A
(en)

1965-01-15
1965-01-15
Improvements in or relating to magnetic core devices

Country Status (1)

Country
Link

GB
(1)

GB1105513A
(en)

1965

1965-01-15
GB
GB202365A
patent/GB1105513A/en
not_active
Expired

Contact information