DK135192C

1392038 Credit card BURROUGHS CORP 12 April 1972 [13 Oct 1971] 47616/71 Heading G4M [Also in Division B6] A credit or identity card carries a magnetic track 2 and contains bars 4 of magnetic material of different coercivity, bars A being of hard and bars B being of soft coercivity. The bars are of m...

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Bibliographische Detailangaben
Hauptverfasser:	RAINEY C J, PROVAN D, BLACK R
Format:	Patent
Sprache:	eng
Schlagworte:	BOOK COVERS BOOKBINDING CALCULATING CHECKING-DEVICES COIN-FREED OR LIKE APPARATUS COMPUTING COUNTING DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR FARE-REGISTERING APPARATUS FILES FRANKING APPARATUS HANDLING RECORD CARRIERS INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER LOOSE LEAVES MOVABLE-STRIP WRITING OR READING APPARATUS PERFORMING OPERATIONS PHYSICS PRESENTATION OF DATA PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR RECOGNITION OF DATA RECORD CARRIERS SPECIAL PRINTED MATTER SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR TICKET-ISSUING APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	1392038 Credit card BURROUGHS CORP 12 April 1972 [13 Oct 1971] 47616/71 Heading G4M [Also in Division B6] A credit or identity card carries a magnetic track 2 and contains bars 4 of magnetic material of different coercivity, bars A being of hard and bars B being of soft coercivity. The bars are of magnetic ink and may be printed randomly, with different bars overlapping, in two printing passes. The bars are read by applying a low field to activate the soft bars and reading them, applying a high field to actuate the hard bars, applying a loop field to erase the activated soft bars and reading the hard bars. The distribution and spacing of the bars may identify the card. After the printing operation the data is read and recorded in track 2.