Browse Prior Art Database

Encoded Magnetic Stripe Detector with Decision Window

IP.com Disclosure Number: IPCOM000068999D
Original Publication Date: 1978-Mar-01
Included in the Prior Art Database: 2005-Feb-20

Publishing Venue

IBM

Related People

Authors:
Lee, P [+details]

Abstract

This article describes a magnetic stripe detector for use in a lockout gate mechanism in a credit card reader. The presence of a magnetic stripe in the credit card is detected to open the lockout gate by counting a plurality of magnetic transitions in the leading portion of the stripe as the card is inserted.