FR2364527A1 - Memoire operant par bulles magnetiques, munie d'un detecteur perfectionne - Google Patents

Memoire operant par bulles magnetiques, munie d'un detecteur perfectionne

Info

Publication number
FR2364527A1
FR2364527A1 FR7727088A FR7727088A FR2364527A1 FR 2364527 A1 FR2364527 A1 FR 2364527A1 FR 7727088 A FR7727088 A FR 7727088A FR 7727088 A FR7727088 A FR 7727088A FR 2364527 A1 FR2364527 A1 FR 2364527A1
Authority
FR
France
Prior art keywords
bubble
detection
period
magnetic field
signal
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.)
Granted
Application number
FR7727088A
Other languages
English (en)
Other versions
FR2364527B1 (fr
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2364527A1 publication Critical patent/FR2364527A1/fr
Application granted granted Critical
Publication of FR2364527B1 publication Critical patent/FR2364527B1/fr
Granted 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

  • Measuring Magnetic Variables (AREA)
  • Mram Or Spin Memory Techniques (AREA)

Abstract

L'invention concerne une mémoire opérant par bulles magnétiques, entraînées par un champ magnétique rotatif le long d'une structure d'éléments discrets qui comporte au moins deux éléments de détection de bulles formés par des chevrons réunis. Le signal de détection repose sur l'effet de magnétorésistance de la succession de chevrons. A l'occasion du passage d'une bulle dans une période du champ magnétique rotatif, il est possible d'engendrer chaque fois un signal de bulle d'intensite relativement élevée et un signal de bulle d'intensité relativement faible. Dans ce cas, il se peut que dans chaque période du champ magnétique rotatif une bulle magnétique soit présentée à l'élément de détection sans que les signaux de détection de bulles qui se succèdent directement, ne se gênent. La détection se fait en présence de la compensation des signaux parasites. La densité d'information est élevée, tandis que par élément de détection utilisé dans la mémoire, la fréquence de bits peut s'identifier à deux bits par période du champ rotatif. Application : installations radar.
FR7727088A 1976-09-10 1977-09-07 Memoire operant par bulles magnetiques, munie d'un detecteur perfectionne Granted FR2364527A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7610054A NL7610054A (nl) 1976-09-10 1976-09-10 Geheugeninrichting voor magnetische domeinen met verbeterde detector.

Publications (2)

Publication Number Publication Date
FR2364527A1 true FR2364527A1 (fr) 1978-04-07
FR2364527B1 FR2364527B1 (fr) 1983-09-23

Family

ID=19826870

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7727088A Granted FR2364527A1 (fr) 1976-09-10 1977-09-07 Memoire operant par bulles magnetiques, munie d'un detecteur perfectionne

Country Status (8)

Country Link
US (1) US4151601A (fr)
JP (1) JPS5335336A (fr)
CA (1) CA1110764A (fr)
DE (1) DE2739578C2 (fr)
FR (1) FR2364527A1 (fr)
GB (1) GB1583108A (fr)
NL (1) NL7610054A (fr)
SE (1) SE7710006L (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4323983A (en) * 1979-08-09 1982-04-06 Intel Magnetics, Inc. Magnetic bubble detector
US4321691A (en) * 1980-06-02 1982-03-23 National Semiconductor Corporation Redundant bubble detector
US4327423A (en) * 1980-07-21 1982-04-27 Sperry Corporation Magnetic bubble transducer
US4432069A (en) * 1981-01-29 1984-02-14 Intel Corporation Multiplexed magnetic bubble detectors
US4460976A (en) * 1981-11-09 1984-07-17 At&T Bell Laboratories Field access magnetic bubble memory with improved expander-detector arrangement
JPS59142387U (ja) * 1983-03-15 1984-09-22 不二サッシ株式会社 金属製建具の組子桟構造
FR2608304B2 (fr) * 1986-02-05 1989-03-31 Sagem Dispositif de memorisation a bulles magnetiques
US5600242A (en) * 1994-09-26 1997-02-04 The Boeing Company Electrically small broadband high linear dynamic range deceiver including a plurality of active antenna elements
US6558525B1 (en) * 2002-03-01 2003-05-06 Northwest Aluminum Technologies Anode for use in aluminum producing electrolytic cell
JP5398506B2 (ja) 2009-12-16 2014-01-29 Ｎｔｎ株式会社 可撓性ワイヤ

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE791686A (fr) * 1971-11-24 1973-03-16 Western Electric Co Agencement magnetique
US3810132A (en) * 1972-11-24 1974-05-07 Bell Telephone Labor Inc Integrated bubble expansion detector and dynamic guard rail arrangement
JPS5528146B2 (fr) * 1973-09-18 1980-07-25
JPS50120741A (fr) * 1974-03-08 1975-09-22
JPS5732430B2 (fr) * 1974-10-09 1982-07-10
US4056814A (en) * 1976-03-10 1977-11-01 Bell Telephone Laboratories, Incorporated Magnetoresistive element for detecting magnetic bubbles

Also Published As

Publication number Publication date
JPS5729794B2 (fr) 1982-06-24
SE7710006L (sv) 1978-03-11
DE2739578A1 (de) 1978-03-16
NL7610054A (nl) 1978-03-14
FR2364527B1 (fr) 1983-09-23
JPS5335336A (en) 1978-04-01
US4151601A (en) 1979-04-24
CA1110764A (fr) 1981-10-13
DE2739578C2 (de) 1984-10-31
GB1583108A (en) 1981-01-21

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Legal Events

Date Code Title Description
ST Notification of lapse