ATE50372T1 - Anordnung zur ablesung und annullierung von kleinen duennschicht-zonen aus einem material mit magnetischer uniaxialer anisotropie, das auf kreditkarten oder dergleichen aufgebracht ist. - Google Patents

Anordnung zur ablesung und annullierung von kleinen duennschicht-zonen aus einem material mit magnetischer uniaxialer anisotropie, das auf kreditkarten oder dergleichen aufgebracht ist.

Info

Publication number
ATE50372T1
ATE50372T1 AT84830282T AT84830282T ATE50372T1 AT E50372 T1 ATE50372 T1 AT E50372T1 AT 84830282 T AT84830282 T AT 84830282T AT 84830282 T AT84830282 T AT 84830282T AT E50372 T1 ATE50372 T1 AT E50372T1
Authority
AT
Austria
Prior art keywords
reading
areolae
credit cards
cancellation
magnetic
Prior art date
Application number
AT84830282T
Other languages
English (en)
Inventor
Feo Paolo De
Original Assignee
Ipm Ind Politecnica Meridional
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 Ipm Ind Politecnica Meridional filed Critical Ipm Ind Politecnica Meridional
Application granted granted Critical
Publication of ATE50372T1 publication Critical patent/ATE50372T1/de

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
    • 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)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Measuring Magnetic Variables (AREA)
  • Credit Cards Or The Like (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Magnetic Record Carriers (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Paints Or Removers (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
AT84830282T 1983-10-21 1984-10-18 Anordnung zur ablesung und annullierung von kleinen duennschicht-zonen aus einem material mit magnetischer uniaxialer anisotropie, das auf kreditkarten oder dergleichen aufgebracht ist. ATE50372T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT49205/83A IT1170531B (it) 1983-10-21 1983-10-21 Dispositivo di lettura ed obliterazione di areole a film sottile di materiale ad anisotropia magnetica uniassiale, deposte su di carte di credito o simili
EP84830282A EP0157995B1 (de) 1983-10-21 1984-10-18 Anordnung zur Ablesung und Annullierung von kleinen Dünnschicht-Zonen aus einem Material mit magnetischer uniaxialer Anisotropie, das auf Kreditkarten oder dergleichen aufgebracht ist

Publications (1)

Publication Number Publication Date
ATE50372T1 true ATE50372T1 (de) 1990-02-15

Family

ID=11269940

Family Applications (1)

Application Number Title Priority Date Filing Date
AT84830282T ATE50372T1 (de) 1983-10-21 1984-10-18 Anordnung zur ablesung und annullierung von kleinen duennschicht-zonen aus einem material mit magnetischer uniaxialer anisotropie, das auf kreditkarten oder dergleichen aufgebracht ist.

Country Status (7)

Country Link
US (1) US4672183A (de)
EP (1) EP0157995B1 (de)
AT (1) ATE50372T1 (de)
CA (1) CA1227282A (de)
DE (2) DE3481352D1 (de)
ES (1) ES536907A0 (de)
IT (1) IT1170531B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9016830D0 (en) * 1990-07-31 1990-09-12 Gec Avery Ltd Reader unit
WO1996023272A1 (en) * 1995-01-23 1996-08-01 TELECOMUNICAÇõES BRASILEIRAS S/A - TELEBRÁS Circuit for driving inductive sensors for reading and debiting prepaid cards
US8579203B1 (en) * 2008-12-19 2013-11-12 Dynamics Inc. Electronic magnetic recorded media emulators in magnetic card devices

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2926844A (en) * 1952-03-14 1960-03-01 George C Devol Sensing device for magnetic record
DE1074295B (de) * 1957-01-25 1960-01-28 IBM Deutschland Internationale Buro-Maschmen Gesellschaft mbH Sin delfingen (Wurtt) Anordnung zur Feststellung von Mar kierungen
US3290487A (en) * 1962-04-16 1966-12-06 Sperry Rand Corp Signal transducer
US3423742A (en) * 1963-08-12 1969-01-21 Ncr Co Reluctance-type transducer device
US4158433A (en) * 1976-11-22 1979-06-19 Glen Peterson Method of and apparatus for securing and storing personal information
FR2385154A1 (fr) * 1977-03-25 1978-10-20 Metalimphy Procede et dispositif d'identification d'etiquettes codees
IT1109303B (it) * 1978-10-30 1985-12-16 Ipm Ind Politecnica Meridional Carta di credito a magnetizzazione anisotropa uniassale
DE3038614A1 (de) * 1980-10-13 1982-04-22 Copytex-Abrechnungssysteme für Dienstleistungsautomaten GbmH, 7742 St Georgen Verfahren zum rueckuebertragen von einmal auf einem datentraeger eingetragener information und vorrichtung zum ein- und/oder auslesen einer gegen rueckuebertragung geschuetzten information

Also Published As

Publication number Publication date
ES8603104A1 (es) 1985-11-16
US4672183A (en) 1987-06-09
DE3481352D1 (de) 1990-03-15
EP0157995A2 (de) 1985-10-16
DE157995T1 (de) 1986-04-10
CA1227282A (en) 1987-09-22
EP0157995A3 (en) 1987-01-28
ES536907A0 (es) 1985-11-16
IT8349205A0 (it) 1983-10-21
EP0157995B1 (de) 1990-02-07
IT1170531B (it) 1987-06-03

Similar Documents

Publication Publication Date Title
King et al. The electromagnetic field of a vertical electric dipole over the earth or sea
GB1416335A (en) Process for the study of internal physiological phenomena
US5001586A (en) Very low noise magnetoresistive sensor for high density media applications
GB1063037A (en) The measurement of magnetic fields
EP0284196A2 (de) Magnetometer
DE3481352D1 (de) Anordnung zur ablesung und annullierung von kleinen duennschicht-zonen aus einem material mit magnetischer uniaxialer anisotropie, das auf kreditkarten oder dergleichen aufgebracht ist.
GB1241074A (en) Thin film magnetometer
Wyatt Baseline errors in cuff electromagnetic flowmeters
GB1508565A (en) Testing an elongate conductor comprising at least partly superconductor material
USH585H (en) Anisotropic magnetoresistance measurement apparatus and method thereof
FR2352307A1 (fr) Dispositif pour la mesure d'un champ magnetique au moyen d'un magnetometre du type a barreau
ES467766A1 (es) Dispositivo de lectura de informaciones magneticas.
Parkinson Comments on the use of electromagnetic fields in biological studies
Yamaguchi et al. Directivity and sensitivity of high-frequency carrier type thin-film magnetic field sensor
US2983865A (en) Mine detector
DE69618623D1 (de) Induktive vorrichtung zur bestimmung der lage und der abmessungen von messobjekten aus elektrisch leitfähigem material
SU485500A1 (ru) Датчик дл считывани цилиндрических магнитных доменов
SE7708262L (sv) Magnetisk domenanordning
JPS5690577A (en) Magnetic resistance effect element
JPS57141014A (en) Thin film magnetic sensor
JPS558640A (en) Magnetic recording and reproducing system
Rabinovici et al. Low power portable DC magnetometer
US4136371A (en) Magnetic head employing hard axis thin film inductor
GB1411819A (en) Magnetic device having domains
Zatsepin et al. Theory of a superposed linear transducer

Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee