IT8221863A0 - Dispositivo di trasduzione a magnetoresistenza, per la lettura di informazioni in codice a bassa densita'. - Google Patents

Dispositivo di trasduzione a magnetoresistenza, per la lettura di informazioni in codice a bassa densita'.

Info

Publication number
IT8221863A0
IT8221863A0 IT8221863A IT2186382A IT8221863A0 IT 8221863 A0 IT8221863 A0 IT 8221863A0 IT 8221863 A IT8221863 A IT 8221863A IT 2186382 A IT2186382 A IT 2186382A IT 8221863 A0 IT8221863 A0 IT 8221863A0
Authority
IT
Italy
Prior art keywords
magnetoresistor
low density
reading information
transduction device
density code
Prior art date
Application number
IT8221863A
Other languages
English (en)
Other versions
IT1190870B (it
Inventor
Helle Michel
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
Publication of IT8221863A0 publication Critical patent/IT8221863A0/it
Application granted granted Critical
Publication of IT1190870B publication Critical patent/IT1190870B/it

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
    • G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06K7/087—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 flux-sensitive, e.g. magnetic, detectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Measuring Magnetic Variables (AREA)
  • Hall/Mr Elements (AREA)
IT21863/82A 1981-06-19 1982-06-15 Dispositivo di trasduzione a magnetoresistenza,per la lettura di informazioni in codice a bassa densita' IT1190870B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8112071A FR2508203A1 (fr) 1981-06-19 1981-06-19 Dispositif de transduction magnetoresistant de lecture d'informations codees a faible densite

Publications (2)

Publication Number Publication Date
IT8221863A0 true IT8221863A0 (it) 1982-06-15
IT1190870B IT1190870B (it) 1988-02-24

Family

ID=9259681

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21863/82A IT1190870B (it) 1981-06-19 1982-06-15 Dispositivo di trasduzione a magnetoresistenza,per la lettura di informazioni in codice a bassa densita'

Country Status (6)

Country Link
US (1) US4439671A (it)
JP (1) JPS57212579A (it)
DE (1) DE3222789A1 (it)
FR (1) FR2508203A1 (it)
GB (1) GB2100910B (it)
IT (1) IT1190870B (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4523243A (en) * 1982-05-24 1985-06-11 Storage Technology Corporation Magnetoresistive transducer using an independent recessed electromagnetic bias
ES8403555A1 (es) * 1983-03-08 1984-03-16 Zottnik Edmund Sistema codificado de validacion y comando.
JPH02124575U (it) * 1989-03-24 1990-10-15
FR2656454B1 (fr) * 1989-12-22 1995-07-21 Thomson Csf Tete de lecture multipiste.
AT398497B (de) * 1990-01-23 1994-12-27 Groessinger R Dr Codiersystem und codeträger
GB9007548D0 (en) * 1990-04-04 1990-05-30 Lethaby Numbering Systems Limi Marking assembly
US5390054A (en) * 1993-03-12 1995-02-14 Minnesota Mining And Manufacturing Company Method and system for minimizing the error rate of a digital recording system by predicting the optimal bias current
FR2767217B1 (fr) * 1997-08-06 1999-11-12 Conception Organisation Logist Systeme de lecture et d'authentification d'un code magnetique
FR2767218B1 (fr) * 1997-08-06 1999-11-12 Conception Organisation Logist Code magnetique comportant une base de lecture et systeme de lecture d'un tel code

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1471893A (fr) * 1965-03-24 1967-03-03 Siemens Ag Porteur d'informations à exploration galvanomagnétique comportant un organe d'exploration
US3887944A (en) * 1973-06-29 1975-06-03 Ibm Method for eliminating part of magnetic crosstalk in magnetoresistive sensors
JPS5927115B2 (ja) * 1974-12-29 1984-07-03 ソニー株式会社 情報検出装置
FR2393318A1 (fr) * 1977-06-02 1978-12-29 Cii Honeywell Bull Dispositif de detection de champ magnetique
US4356523A (en) * 1980-06-09 1982-10-26 Ampex Corporation Narrow track magnetoresistive transducer assembly

Also Published As

Publication number Publication date
JPS57212579A (en) 1982-12-27
FR2508203A1 (fr) 1982-12-24
GB2100910A (en) 1983-01-06
US4439671A (en) 1984-03-27
GB2100910B (en) 1985-05-15
DE3222789A1 (de) 1983-01-05
IT1190870B (it) 1988-02-24

Similar Documents

Publication Publication Date Title
DE3576587D1 (de) In wechselwirkung stehende abdruckverbesserungstechniken.
IT8424101A0 (it) Dispositivo per la presentazione d'informazione.
DE3788038D1 (de) Informationsschnittgerät.
DE3483476D1 (de) Informationsmedium.
ES510176A0 (es) "un aparato de tratamiento de datos, perfeccionado".
DE3879720D1 (de) Kartenfoermiges informationsspeichermedium.
IT8224751A0 (it) Valigetta in particolare valigetta per documenti.
DE68909462D1 (de) Magnetoresistiver lesewandler.
NO894422D0 (no) Naerhetsavlesningssystem for kodede merkebrikker.
DE3482654D1 (de) Datenspeichergeraet.
IT8221863A0 (it) Dispositivo di trasduzione a magnetoresistenza, per la lettura di informazioni in codice a bassa densita'.
DE3580768D1 (de) Datenspeicherelement.
FR2530362B1 (fr) Memoire d'information a disques, en particulier memoire a disques magnetiques
NO891439D0 (no) Informasjonskortsystem.
DE3777081D1 (de) Informationsspeichermedium.
DE59004533D1 (de) Datenkartenaufnahme.
DE69020997D1 (de) Informationsaufzeichnungssystem.
DE3586709D1 (de) Informationsverarbeitungseinheit.
DE3764046D1 (de) Informationsaufzeichnungsmethode.
IT8221622A0 (it) Miglioramenti nelle testine di registrazione magnetografica.
DE69014189D1 (de) Speicher mit verbesserter Lesezeit.
DE69020523D1 (de) Mehrspur-Lesemagnetkopf.
DE3783207D1 (de) Magnetoresistiver lesewandler.
FR2659768B1 (fr) Procede de codage et de decodage de cartes a memoire prepayees.
DE3583419D1 (de) Datenspeichergeraet.