FR2386112A1 - Dispositif d'aimantation statique a champ localise - Google Patents

Dispositif d'aimantation statique a champ localise

Info

Publication number
FR2386112A1
FR2386112A1 FR7709823A FR7709823A FR2386112A1 FR 2386112 A1 FR2386112 A1 FR 2386112A1 FR 7709823 A FR7709823 A FR 7709823A FR 7709823 A FR7709823 A FR 7709823A FR 2386112 A1 FR2386112 A1 FR 2386112A1
Authority
FR
France
Prior art keywords
magnetation
localized field
field static
magnetization device
localized
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
FR7709823A
Other languages
English (en)
Other versions
FR2386112B1 (fr
Inventor
Jean-Pierre Lazzari
Michel Helle
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.)
CII HONEYWELL BULL
Original Assignee
CII HONEYWELL BULL
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 CII HONEYWELL BULL filed Critical CII HONEYWELL BULL
Priority to FR7709823A priority Critical patent/FR2386112A1/fr
Priority to US05/880,331 priority patent/US4194110A/en
Priority to ES467303A priority patent/ES467303A1/es
Priority to GB9083/78A priority patent/GB1569086A/en
Priority to BR7801454A priority patent/BR7801454A/pt
Priority to IT20989/78A priority patent/IT1109163B/it
Priority to NL7802640A priority patent/NL7802640A/xx
Priority to DE2811560A priority patent/DE2811560C2/de
Priority to JP53034934A priority patent/JPS594062B2/ja
Publication of FR2386112A1 publication Critical patent/FR2386112A1/fr
Application granted granted Critical
Publication of FR2386112B1 publication Critical patent/FR2386112B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/08—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
    • G06K7/082—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K1/00—Methods or arrangements for marking the record carrier in digital fashion
    • G06K1/12—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching
    • G06K1/125—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching by magnetic means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F13/00—Apparatus or processes for magnetising or demagnetising
    • H01F13/003—Methods and devices for magnetising permanent magnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Artificial Intelligence (AREA)
  • Thin Magnetic Films (AREA)
  • Digital Magnetic Recording (AREA)
  • Magnetic Heads (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Credit Cards Or The Like (AREA)
  • Magnetic Record Carriers (AREA)
  • Measuring Magnetic Variables (AREA)

Abstract

Dispositif d'aimantation statique à champ localisé comprenant une couche magnétique déposée sur un substrat. Selon l'invention, le dispositif d'aimantation est caractérisé en ce que ladite couche comprend une succession de zones adjacentes ayant alternativement des longueurs d1 et d 2 différentes, l'une étant très supérieure à l'autre, ainsi que des inductions magnétiques de sens opposé. L'invention est applicable aux lecteurs de chèques.
FR7709823A 1977-03-31 1977-03-31 Dispositif d'aimantation statique a champ localise Granted FR2386112A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FR7709823A FR2386112A1 (fr) 1977-03-31 1977-03-31 Dispositif d'aimantation statique a champ localise
US05/880,331 US4194110A (en) 1977-03-31 1978-02-23 Localized-field static magnetizing device
ES467303A ES467303A1 (es) 1977-03-31 1978-02-24 Dispositivo de imantacion estatica con campo localizado.
GB9083/78A GB1569086A (en) 1977-03-31 1978-03-07 Localised-field static magnetising device
BR7801454A BR7801454A (pt) 1977-03-31 1978-03-09 Dispositivo de magnetizacao estatica em campo localizado
IT20989/78A IT1109163B (it) 1977-03-31 1978-03-09 Dispositivo di magnetizzazione statica a campo localizzato
NL7802640A NL7802640A (nl) 1977-03-31 1978-03-10 Inrichting voor plaatselijke magnetisatie van een materiaal.
DE2811560A DE2811560C2 (de) 1977-03-31 1978-03-16 Vorrichtung zur statischen Magnetisierung mit lokalisiertem Feld
JP53034934A JPS594062B2 (ja) 1977-03-31 1978-03-28 局部磁界による静上磁化装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7709823A FR2386112A1 (fr) 1977-03-31 1977-03-31 Dispositif d'aimantation statique a champ localise

Publications (2)

Publication Number Publication Date
FR2386112A1 true FR2386112A1 (fr) 1978-10-27
FR2386112B1 FR2386112B1 (fr) 1980-02-01

Family

ID=9188863

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7709823A Granted FR2386112A1 (fr) 1977-03-31 1977-03-31 Dispositif d'aimantation statique a champ localise

Country Status (9)

Country Link
US (1) US4194110A (fr)
JP (1) JPS594062B2 (fr)
BR (1) BR7801454A (fr)
DE (1) DE2811560C2 (fr)
ES (1) ES467303A1 (fr)
FR (1) FR2386112A1 (fr)
GB (1) GB1569086A (fr)
IT (1) IT1109163B (fr)
NL (1) NL7802640A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2820835A1 (de) * 1977-05-13 1978-11-23 Cii Honeywell Bull Einrichtung zum abtasten magnetisierbarer informationen

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1109303B (it) * 1978-10-30 1985-12-16 Ipm Ind Politecnica Meridional Carta di credito a magnetizzazione anisotropa uniassale
JPS6452223A (en) * 1987-05-14 1989-02-28 Nippon Telegraph & Telephone Magnetic card

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3025503A (en) * 1956-08-01 1962-03-13 Honeywell Regulator Co Information storage record and apparatus
US3100834A (en) * 1959-06-30 1963-08-13 Ibm Magnetic data processing
US3409853A (en) * 1966-10-14 1968-11-05 Collins Corp G L Method and apparatus for producing duplicate magnetized articles and articles produced thereby
US3613101A (en) * 1970-01-21 1971-10-12 Digitronics Corp Magnetic recording utilizing a selective magnetic shielding structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2820835A1 (de) * 1977-05-13 1978-11-23 Cii Honeywell Bull Einrichtung zum abtasten magnetisierbarer informationen

Also Published As

Publication number Publication date
ES467303A1 (es) 1978-10-16
FR2386112B1 (fr) 1980-02-01
NL7802640A (nl) 1978-10-03
GB1569086A (en) 1980-06-11
BR7801454A (pt) 1978-10-31
JPS594062B2 (ja) 1984-01-27
IT1109163B (it) 1985-12-16
DE2811560A1 (de) 1978-10-12
IT7820989A0 (it) 1978-03-09
DE2811560C2 (de) 1983-03-31
US4194110A (en) 1980-03-18
JPS53123112A (en) 1978-10-27

Similar Documents

Publication Publication Date Title
FR3077917B1 (fr) Empilement magnetique, jonction tunnel, point memoire et capteur comportant un tel empilement
IT1084205B (it) Dispositivo semiconduttore elettroluminescente di nitruro di gallio e metodo di fabbricazione dello stesso.
FI850745L (fi) Pao elektromagnetisk straolning baserat kretselement.
IT1091237B (it) Dispositivo di garanzia di autenticita particolarmente per banconote e simili
FR2348589A1 (fr) Dispositif laser semi-conducteur
NL7704921A (nl) Magnetische registratie- en weergeefinrichting.
ES458715A1 (es) Perfeccionamientos introducidos en un registro sensible a laradiacion.
NL7604569A (nl) Veldemitterinrichting en werkwijze tot het vormen daarvan.
NL7704780A (nl) Magnetische opneem- en weergeefinrichting.
IT7824439A0 (it) Dispositivo per stabilizzare e, o elevare il potenziale di contrasto in un riproduttore elettrofotografico.
NL7708526A (nl) Geintegreerde halfgeleiderketen met statische inductietransistor.
FR2386112A1 (fr) Dispositif d'aimantation statique a champ localise
JPS5440606A (en) Magnetic memory element
KR880011738A (ko) 자기 기록매체
KR840001776A (ko) 반도체 펠릿배열장치 및 방법
NL7711403A (nl) Magnetische opneem- en weergeefinrichting.
IT997169B (it) Procedimento e dispositivo per l inserimento di rondelle roset te elastiche rosette dentate ed elementi simili su gambi di perni e simili
DE58906295D1 (de) Siliciumnaphthalocyanine mit ungesättigten Liganden sowie optisches Aufzeichnungsmedium.
ATE277384T1 (de) Magnetstreifen mit einer klebeschicht
ATE15166T1 (de) Optischer aufzeichnungstraeger.
IT7827157A0 (it) Elemento di registrazione magnetica e relativo metodo di fabbricazione.
ITTO920300A0 (it) Dispositivo di protezione per computer e simili .
CA2361700A1 (fr) Procede de detection d'analytes dans un echantillon pour essai et support de mesure y relatif
IT1084516B (it) Dispositivo per trasportare ed allineare biscotti ed oggetti simili.
JPS5387188A (en) Semiconductor device

Legal Events

Date Code Title Description
ST Notification of lapse