GB940835A - Improvements in or relating to magnetic storage devices - Google Patents

Improvements in or relating to magnetic storage devices

Info

Publication number
GB940835A
GB940835A GB2352663A GB2352663A GB940835A GB 940835 A GB940835 A GB 940835A GB 2352663 A GB2352663 A GB 2352663A GB 2352663 A GB2352663 A GB 2352663A GB 940835 A GB940835 A GB 940835A
Authority
GB
United Kingdom
Prior art keywords
conductors
elements
drive conductors
drive
nov
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
GB2352663A
Inventor
Reginald Sidney Webley
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries Ltd
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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB2352663A priority Critical patent/GB940835A/en
Publication of GB940835A publication Critical patent/GB940835A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
    • G11C7/02—Arrangements for writing information into, or reading information out from, a digital store with means for avoiding parasitic signals

Abstract

940,835. Circuits employing bi-stable magrietic elements. ELECTRIC & MUSICAL INDUSTRIES Ltd. Nov. 19, 1959 [Nov. 28, 1958], No. 23526/63. Divided out of 940,834. Heading H3B. In a magnetic storage device comprising a matrix of film elements 2 on an insulating sheet 1, there are two sets of drive conductors X and Y (Fig. 1) which cross with their overlying portion covering individual elements and one set of sense conductors 7 crossing the same elements as the respective Y drive conductors and perpendicular to the X drive conductors which are energized for reading. The film elements may be of 80% nickel and 20% iron deposited by evaporation or, electro-deposition &c. The insulating plate may be of glass, ceramic or plastic. In the Figure the direction of the easy axis of magnetization 3 of each element 2 is at an angle of between 20 degrees and 45 degrees with the field from drive conductors X, Y, these conductors being parallel at the crossing points. Each magnetic element may comprise two magnetic components and the support may be varnished to provide an electrically insulating, smooth, shiny, amorphous surface. The Provisional Specification refers to Specifications 907,090 and 937,741.
GB2352663A 1958-11-28 1958-11-28 Improvements in or relating to magnetic storage devices Expired GB940835A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2352663A GB940835A (en) 1958-11-28 1958-11-28 Improvements in or relating to magnetic storage devices

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2352663A GB940835A (en) 1958-11-28 1958-11-28 Improvements in or relating to magnetic storage devices
GB3849659 1959-11-19

Publications (1)

Publication Number Publication Date
GB940835A true GB940835A (en) 1963-11-06

Family

ID=26256568

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2352663A Expired GB940835A (en) 1958-11-28 1958-11-28 Improvements in or relating to magnetic storage devices

Country Status (1)

Country Link
GB (1) GB940835A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1295015B (en) * 1964-11-09 1969-05-14 Siemens Ag Magnetic coincidence memory

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1295015B (en) * 1964-11-09 1969-05-14 Siemens Ag Magnetic coincidence memory

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