GB1564137A - Digital magnetic memory systems - Google Patents

Digital magnetic memory systems Download PDF

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Publication number
GB1564137A
GB1564137A GB35351/76A GB3535176A GB1564137A GB 1564137 A GB1564137 A GB 1564137A GB 35351/76 A GB35351/76 A GB 35351/76A GB 3535176 A GB3535176 A GB 3535176A GB 1564137 A GB1564137 A GB 1564137A
Authority
GB
United Kingdom
Prior art keywords
wall
line
bloch
cross
tie
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
GB35351/76A
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 GB1564137A publication Critical patent/GB1564137A/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

  • Recording Or Reproducing By Magnetic Means (AREA)
  • Hall/Mr Elements (AREA)
  • Semiconductor Memories (AREA)
  • Thin Magnetic Films (AREA)
  • Measuring Magnetic Variables (AREA)
GB35351/76A 1975-08-28 1976-08-25 Digital magnetic memory systems Expired GB1564137A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/608,815 US4024515A (en) 1975-08-28 1975-08-28 Magneto-inductive readout of cross-tie wall memory system using bipolar, asymmetrical, hard axis drive fields and long sense line

Publications (1)

Publication Number Publication Date
GB1564137A true GB1564137A (en) 1980-04-02

Family

ID=24438133

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35351/76A Expired GB1564137A (en) 1975-08-28 1976-08-25 Digital magnetic memory systems

Country Status (8)

Country Link
US (1) US4024515A (https=)
JP (1) JPS5228827A (https=)
DE (1) DE2638420C3 (https=)
FR (1) FR2322432A1 (https=)
GB (1) GB1564137A (https=)
IT (1) IT1123660B (https=)
NL (1) NL7608998A (https=)
SE (1) SE408350B (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4839858A (en) * 1986-11-21 1989-06-13 Westinghouse Electric Corp. Serrated magnetic random memory cell and means for connecting a pair of adjacent cells
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 (3)

* 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
US3868660A (en) * 1973-04-10 1975-02-25 Us Navy Detector for cross-tie memory

Also Published As

Publication number Publication date
FR2322432B1 (https=) 1982-04-09
FR2322432A1 (fr) 1977-03-25
SE7609374L (sv) 1977-03-01
DE2638420C3 (de) 1979-01-11
NL7608998A (nl) 1977-03-02
JPS5228827A (en) 1977-03-04
DE2638420B2 (de) 1978-05-03
US4024515A (en) 1977-05-17
SE408350B (sv) 1979-06-05
IT1123660B (it) 1986-04-30
DE2638420A1 (de) 1977-03-17

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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