Browse Prior Art Database

Magnetic Stripe Encoder

IP.com Disclosure Number: IPCOM000075273D
Original Publication Date: 1971-Aug-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 46K

Publishing Venue

IBM

Related People

Bowdle, RR: AUTHOR [+2]

Abstract

This is an apparatus and method for encoding a magnetic data card. A pair of heads 14A, 14B are mounted by elements 16 to a carrier 18, which may be pivoted and driven along a guide rod 20 by a pair of hinged rollers 30 cooperating with a constantly rotating drive roller 26 mounted on shaft 28. Actuation of magnet 40 rotates pivot element 34 into contact with armature 36 to press the drive ribbon 24 between rollers 30 and 26, which lifts the heads 14A, 14B off of the surface of cards 10A, 10B and returns the carrier 18 to a home position.

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Magnetic Stripe Encoder

This is an apparatus and method for encoding a magnetic data card. A pair of heads 14A, 14B are mounted by elements 16 to a carrier 18, which may be pivoted and driven along a guide rod 20 by a pair of hinged rollers 30 cooperating with a constantly rotating drive roller 26 mounted on shaft 28. Actuation of magnet 40 rotates pivot element 34 into contact with armature 36 to press the drive ribbon 24 between rollers 30 and 26, which lifts the heads 14A, 14B off of the surface of cards 10A, 10B and returns the carrier 18 to a home position. Similarly, actuation of magnet 42 draws pivot 34 into contact with armature 38 to rotate a lower pinch roller, not shown, to pinch drive ribbon 22 against drive roller 26, which action rotate heads 14A, 14B into contact with magnetic stripe 12 on cards 10A, 10B to permit the heads to scan the stripes. Cards 10A, 10B are held in trays 44 and spring biased by spring 46 upward into contact with heads 14A, 14B when in the record mode.

In the record mode, as heads 14A, 14B scan cards 10A, 10B, head 14A derives timing pulses from master card 10A, which are used to gate recording data through a buffer into head 14B which writes the recording data on card 10B. During check, read head 14A scans card 10B to verify the previous write operation.

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