Browse Prior Art Database

Data Card

IP.com Disclosure Number: IPCOM000085541D
Original Publication Date: 1976-Apr-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Related People

Frost, WT: AUTHOR

Abstract

A magnetic data card structure permits indexing of data and control in formation recorded on a magnetic record by hand scanning for transfer to a data utilization device. Apertures in the card envelope guide the hand scanner, and indicia identifying the apertures also identify the data or control information in the area of the magnetic card exposed by the apertures.

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Data Card

A magnetic data card structure permits indexing of data and control in formation recorded on a magnetic record by hand scanning for transfer to a data utilization device. Apertures in the card envelope guide the hand scanner, and indicia identifying the apertures also identify the data or control information in the area of the magnetic card exposed by the apertures.

Magnetic card 1 is coated with layer 2 of magnetic recording material, such as iron oxide or chromium dioxide. Slots 3 are cut in envelope 5 and identified by indicia printed or otherwise applied in the regions 4 around the apertures 3.

Data is written into magnetic material 2 so as to be located within apertures 3 when assembled into envelope 5. The data may include, for a motor freight application, for example, symbology representing the numerics 0, 1, 2,....10 and control characters such as Employee, Trailer, Start Loading, Stop Loading, Cube Mark 1/4, Cube Mark 1/2, Cube Mark 3/4, Heater Loaded, Missing Freight, Close Trailer, Cancel and End Digit Entry.

Magnetic card 1 may be prepared by thermomagnetic transfer from a prepared master card having a Curie temperature equal to or higher than that of card 1. The master card may be prepared by recording individual control tracks with suitable positional accuracy directly on the master card, or onto adhesive backed magnetic tape which is then affixed to a substrate. Similarly, anhysteretic magnetic transfer may be used to prepare cards 2, or...