GB1563013A - Digital magnetic memory systems - Google Patents

Digital magnetic memory systems Download PDF

Info

Publication number
GB1563013A
GB1563013A GB35353/76A GB3535376A GB1563013A GB 1563013 A GB1563013 A GB 1563013A GB 35353/76 A GB35353/76 A GB 35353/76A GB 3535376 A GB3535376 A GB 3535376A GB 1563013 A GB1563013 A GB 1563013A
Authority
GB
United Kingdom
Prior art keywords
electrode
tie
cross
bloch
wall
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
GB35353/76A
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.)
Unisys Corp
Original Assignee
Sperry Rand 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 Sperry Rand Corp filed Critical Sperry Rand Corp
Publication of GB1563013A publication Critical patent/GB1563013A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Hall/Mr Elements (AREA)
  • Semiconductor Memories (AREA)
GB35353/76A 1975-08-28 1976-08-25 Digital magnetic memory systems Expired GB1563013A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/608,437 US4034359A (en) 1975-08-28 1975-08-28 Magneto-resistive readout of a cross-tie wall memory system using a pillar and concentric ring probe

Publications (1)

Publication Number Publication Date
GB1563013A true GB1563013A (en) 1980-03-19

Family

ID=24436503

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35353/76A Expired GB1563013A (en) 1975-08-28 1976-08-25 Digital magnetic memory systems

Country Status (8)

Country Link
US (1) US4034359A (enExample)
JP (1) JPS5228826A (enExample)
DE (1) DE2638422B2 (enExample)
FR (1) FR2322431A1 (enExample)
GB (1) GB1563013A (enExample)
IT (1) IT1067543B (enExample)
NL (1) NL7608999A (enExample)
SE (1) SE408241B (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4141080A (en) * 1976-08-18 1979-02-20 Sperry Rand Corporation Magneto-resistive readout of a cross-tie wall memory system using a probe and crescent
US4161789A (en) * 1978-07-03 1979-07-17 Sperry Rand Corporation Cross-tail sensor for cross-tie memory
JPS57141434A (en) * 1981-02-27 1982-09-01 Hiroyasu Funakubo Improved porous polycarbonate membrane
SE446505B (sv) * 1982-11-16 1986-09-22 Gambro Dialysatoren Membran samt sett att framstella detta
USRE34370E (en) * 1987-05-28 1993-09-07 The United States Of America As Represented By The Secretary Of The Navy Bloch-line memory element and RAM memory
US4901278A (en) * 1987-05-28 1990-02-13 The United States Of America As Represented By The Secretary Of The Navy Bloch-line memory element and ram memory

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3366936A (en) * 1963-04-03 1968-01-30 Hughes Aircraft Co Magnetic shift register with static readout
US3736419A (en) * 1971-10-26 1973-05-29 Ibm Magnetoresistive sensing of bubble domains with noise suppression
US3825910A (en) * 1972-05-05 1974-07-23 Westinghouse Electric Corp Propagation of magnetic domains by self-induced drive fields
US3909809A (en) * 1973-12-17 1975-09-30 Canadian Patents Dev Magnetic bubble domain sensing device
US3906466A (en) * 1974-08-09 1975-09-16 Sperry Rand Corp Propagation circuit for cross-tie wall memory system

Also Published As

Publication number Publication date
JPS5228826A (en) 1977-03-04
DE2638422C3 (enExample) 1979-01-11
SE408241B (sv) 1979-05-21
SE7609373L (sv) 1977-03-01
US4034359A (en) 1977-07-05
DE2638422A1 (de) 1977-03-17
DE2638422B2 (de) 1978-05-03
NL7608999A (nl) 1977-03-02
FR2322431A1 (fr) 1977-03-25
IT1067543B (it) 1985-03-16
FR2322431B1 (enExample) 1982-07-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee