GB1522707A - Creación de Inventos y Patentes con Inteligencia Artificial

GB1522707A – Data apparatus using a lattice
– Google Patents

GB1522707A – Data apparatus using a lattice
– Google Patents
Data apparatus using a lattice

Info

Publication number
GB1522707A

GB1522707A
GB45256/75A
GB4525675A
GB1522707A
GB 1522707 A
GB1522707 A
GB 1522707A
GB 45256/75 A
GB45256/75 A
GB 45256/75A
GB 4525675 A
GB4525675 A
GB 4525675A
GB 1522707 A
GB1522707 A
GB 1522707A
Authority
GB
United Kingdom
Prior art keywords
lattice
bubble
magnetic
bubbles
expanded
Prior art date
1974-12-31
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
GB45256/75A
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.)
1974-12-31
Filing date
1975-10-31
Publication date
1978-08-23

1975-10-31
Application filed by International Business Machines Corp
filed
Critical
International Business Machines Corp

1978-08-23
Publication of GB1522707A
publication
Critical
patent/GB1522707A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

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

G11C11/14—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using thin-film elements

G—PHYSICS

G11—INFORMATION STORAGE

G11C—STATIC STORES

G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers

G11C19/02—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements

G11C19/08—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements using thin films in plane structure

G11C19/0808—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements using thin films in plane structure using magnetic domain propagation

G11C19/0833—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements using thin films in plane structure using magnetic domain propagation using magnetic domain interaction

G—PHYSICS

G11—INFORMATION STORAGE

G11C—STATIC STORES

G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers

G11C19/02—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements

G11C19/08—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements using thin films in plane structure

G11C19/0866—Detecting magnetic domains

Abstract

1522707 Magnetic storage arrangements INTERNATIONAL BUSINESS MACHINES CORP 31 Oct 1975 [31 Dec 1974] 45256/75 Heading H3B A lattice of magnetic bubbles may be expanded in one or both directions and subsequently contracted to its original dimensions. Expansion in the horizontal direction only is shown in Figs. 2A and 2B, expansion in the vertical direction being prevented by energized conductors 24, a magnetic overlay, or etched grooves in the bubble-supporting garnet or amorphous magnetic material. An arrangement permitting controlled expansion in both directions is shown in Fig. 3, lattice dimensional control being effected by three conductor loops L1, L2, L3 assisted by magnetic soft elements 34. Conductor loop L1 is normally energised to confine the lattice, but this current is gradually reduced and conductors L2, L3 energized in turn to effect controlled lattice expansion, Fig. 4A (not shown). A converse pattern of current energization reduces the lattice to its original dimensions, Fig. 4B (not shown). Included in Fig. 3 is a shift register SR the magnetic bubbles B’ of which couple with magnetic bubbles 36 when the lattice of bubbles B is expanded. Shift registers extending between respective bubble generators and sensors may be provided along opposite faces of the expanded lattice, Fig. 5 (not shown). Data may be stored either within the lattice itself or in an information layer magnetically coupled to the lattice. Data stored within the lattice.-As described in Specification 1454451, information is contained within the lattice in the form of the bubble chiral state or the number of block lines within a bubble domain wall. In either case bubbles are distinguished according to direction of movement in a gradient magnetic field, such a field being provided by the conductor loops L1-L3 when a lattice is expanded. A bubble sensing arrangement is shown in Fig. 7, in which only those bubbles B of a specified character move in a direction 58 when the lattice is expanded such as to couple with respective magneto resistive sensors A1-A3, B1-B3 … The remaining bubbles move in a direction 56 sufficiently angularly displaced from direction 58 as to avoid coupling with the sensor matrix 60 which is formed on a glass substrate 62. In an alternative arrangement, Fig. 8, the gradient field is provided by one or more scanning domains SB in a further magnetic bubble layer 70, a search domain following a scanning path 74 so as to couple in turn with each of the bubbles B in an expanded lattice. As each lattice bubble is influenced by a scanning bubble SB, it is deflected in a characterising direction so as to either couple or not with a magneto resistive sensor A1-A3 in a sensing matrix 60. Data stored in an adjacent layer.-In Fig. 9 the lattice is contained in bubble layer 20, and information is stored in adjacent bubble layer 80 in the form of presence or absence of bubbles Bi in a matrix pattern, each bubble Bi being located by magnetic coupling with an underlying lattice bubble B. The information layer additionally includes magneto-resistive sensors each positioned at a location which corresponds to that of a respective lattice bubble when the lattice is expanded. Consequently when expansion takes place the coupled information bubbles are similarly displaced and the information stored read out. If required lattice bubbles may be annihilated by nucleators 82. A further arrangement, Fig. 11A, has the lattice arranged so as to expand linearly into work areas 1 and 2. In a modification, Fig. 11B, expansion into buffer zones 110, 112 is effected by reducing stripe domains 114 which repulse the magnetic bubbles B, the domains being subsequently extended to contact the lattice. Two coordinate expansion is possible by this method. Such arrangements enable the information bubbles in the overlying information layer to move into work areas for nucleation writing and annihilation, Fig. 12. As shown a work area includes a matrix of magnetic elements 122 coupled to row and column conductors 1-16 and positioned over the bubble positions in an expanded lattice. By energising a selected row and a column line from digit and selection current sources 124, 126, the coincidently-energized magnetic element can nucleate or annihilate a magnetic information bubble in the expanded pattern to which it is coupled. An alternative arrangement, Fig. 13 (not shown), comprises a matrix of magneto resistive detectors in positions corresponding to the magnetic elements. In a combination of nucleators and detectors, Fig. 14 (not shown), a matrix of magnetic elements is located in one part of a work area and a similar matrix of magneto resistive elements in the other part.

GB45256/75A
1974-12-31
1975-10-31
Data apparatus using a lattice

Expired

GB1522707A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

US05/537,798

US4052711A
(en)

1974-12-31
1974-12-31
Bubble lattice file using movable fixed lattice

Publications (1)

Publication Number
Publication Date

GB1522707A
true

GB1522707A
(en)

1978-08-23

Family
ID=24144133
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB45256/75A
Expired

GB1522707A
(en)

1974-12-31
1975-10-31
Data apparatus using a lattice

Country Status (5)

Country
Link

US
(1)

US4052711A
(en)

JP
(1)

JPS5526557B2
(en)

DE
(1)

DE2553238A1
(en)

FR
(1)

FR2296912A1
(en)

GB
(1)

GB1522707A
(en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US4139904A
(en)

1977-06-30
1979-02-13
International Business Machines Corporation
Bubble lattice files with selected access channel positioning

US5103422A
(en)

1987-12-02
1992-04-07
Ricoh Compnay, Ltd.
Three-dimensional magnetic memory medium and method for initial setting thereof

JP3861197B2
(en)

2001-03-22
2006-12-20
株式会社東芝

Manufacturing method of recording medium

JP4163729B2
(en)

2006-10-03
2008-10-08
株式会社東芝

Magnetic recording medium, method for manufacturing the same, and magnetic recording apparatus

JP5259645B2
(en)

2010-04-14
2013-08-07
株式会社東芝

Magnetic recording medium and method for manufacturing the same

Family Cites Families (5)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3683307A
(en)

1968-05-22
1972-08-08
Sondell Research & Dev Co
Spherical electronic components

BE787064A
(en)

1971-08-03
1973-02-01
Philips Nv

MAGNETIC DEVICE CONTAINING DOMAINS

US3944842A
(en)

1971-08-03
1976-03-16
Jan Willem Frederik Dorleijn
Magnetic domain logic device

US3913079A
(en)

1974-01-02
1975-10-14
Ibm
Magnetic bubble domain pump shift register

US3930244A
(en)

1974-08-05
1975-12-30
Ibm
Bubble domain lattice buffer arrangement

1974

1974-12-31
US
US05/537,798
patent/US4052711A/en
not_active
Expired – Lifetime

1975

1975-10-31
GB
GB45256/75A
patent/GB1522707A/en
not_active
Expired

1975-11-07
FR
FR7534737A
patent/FR2296912A1/en
active
Granted

1975-11-27
DE
DE19752553238
patent/DE2553238A1/en
active
Pending

1975-12-09
JP
JP14601075A
patent/JPS5526557B2/ja
not_active
Expired

Also Published As

Publication number
Publication date

FR2296912B1
(en)

1977-12-16

JPS5526557B2
(en)

1980-07-14

US4052711A
(en)

1977-10-04

FR2296912A1
(en)

1976-07-30

JPS51105729A
(en)

1976-09-18

DE2553238A1
(en)

1976-07-08

Información de contacto