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Magnetic Stripe Reader Enhancement

IP.com Disclosure Number: IPCOM000063792D
Original Publication Date: 1985-Apr-01
Included in the Prior Art Database: 2005-Feb-18

Publishing Venue

IBM

Related People

Authors:
Powell, KE Watkins, HE [+details]

Abstract

This article describes a magnetic stripe reader device enhancement in which the device accepts variable rate F/2F signals at a rate of 3 to 32 inches per second (IPS) and presents them to a CPU at a fixed rate. Existing magnetic stripe readers are manually-operated stripe readers that process magnetic reads at a rate of 4 to 12 IPS. Since these readers are manually operated, a single read may vary between these speeds and the resulting output is a highly variable rate F/2F signal. Normally these readers are applied to the digital input points of a CPU, and when a plurality of these devices are utilized, much of the system's processing power is dissipated in accomplishing data separation of these variable rate signals.